Gas Service Handbook
Content
March 2010
Gas Service Handbook Residential Conversion to Natural Gas
Form No. 2770 (Rev. 11)
E 2010 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval system, without permission from Puget Sound Energy (PSE).
Puget Sound Energy Standards Department P.O. Box 97034 EST-07W Bellevue, WA 98009-9734 1‐888‐225‐5773
Puget Sound Energy's pledge to you is simple: u
We will connect new permanent service lines and meters when mutually agreed.
u
We will reestablish existing natural gas and electric service following move‐out/move‐in or disconnection for non‐payment when mutually agreed.
u
We will keep natural gas equipment service appointments when mutually agreed.
u
If we fail to keep these commitments, we will credit your account $50. Note: This guarantee applies in the absence of major storms, earthquakes, supply interruptions, or other adverse events beyond our control. In these cases, we will reschedule service appointments as quickly as possible.
TABLE OF CONTENTS
Table Of Contents Preface Natural gas—the smart choice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What this handbook contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSE's service territory maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary of terms used in this handbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . Codes and jurisdictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to contact Puget Sound Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSE's Service Providers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview: Bringing Natural Gas to Your Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Chapter 1 Steps to a Smooth Installation Converting to natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting started with the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Is there a gas main located in front of your home? . . . . . . . . . . . . . . . . . . . . . What natural gas appliances will be installed in your home? . . . . . . . . . . . . . Customer fuel line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Customer Responsibilities, underground fuel line piping . . . . . . . . . . . . . . . What are the costs and savings of converting to natural gas? . . . . . . . . . . . . . . . . . . . Gas main extension costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purchase and installation costs of new appliances and equipment . . . . . . . . . Unused facility charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 1 1 2 2 3 3 3 4 4
Chapter 2 Bringing Natural Gas to Your Home Service from an existing main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service with a main extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scheduling your installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 5 5
Chapter 3 Installing Your Natural Gas Service Selecting a gas meter location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptable meter locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Guard post requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimum meter clearance requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Improper electrical grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Meter installation and turn‐on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trenching in the right‐of‐way . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Customer‐provided trench and conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flag and landlocked lots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
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TABLE OF CONTENTS
Chapter 4: Programs and Services Offered by Puget Sound Energy Energy Efficiency Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contractor Referral Servicet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gas heating system inspection for your furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 13 13
Appendix A PSE's Natural Gas Service Territory Map .........................................................
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Appendix B Natural Gas Safety What is natural gas? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Things to know about natural gas safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call before you dig! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What to do if you suspect a natural gas leak . . . . . . . . . . . . . . . . . . . . . . . . . When and how to shut off gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . When to shut off your gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to shut off your gas service in an emergency situation . . . . . . . . . . . . . In a nonemergency situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What is carbon monoxide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Know the early symptoms of carbon monoxide poisoning . . . . . . . . . . . . . .
17 17 17 17 18 18 18 19 19 19 19
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6
Gas system responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Residential meter guard post requirements . . . . . . . . . . . . . . . . . . . . . . . Typical 250 or 425 in service residential gas meter set assembly . . . . . . Typical new residential meter set assembly installation ready for equipment turn‐on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Orange WARNING Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical flag and landlocked lots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 8 9 10 11 12
Back Pocket Gas Meter Location Sticker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Natural Gas Customer Rights and Responsibilities . . . . . . . . . . . . . . . . . . Contractor Referral Servicet Request Card . . . . . . . . . . . . . . . . . . . . . . . Installation Requirements for Gas Meter Set Assemblies . . . . . . . . . . . . .
Form 1461 Form 1602 Form 2811 Form 3885
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PREFACE
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Preface Natural gas—the smart choice Every year, thousands of consumers call us about switching to natural gas because using natural gas is safe, clean, affordable, and an efficient energy choice. Consider the following benefits: H Reliable. Even during major power outages, gas ranges, water heaters, and some fireplaces still work. H Safe. Natural gas is nontoxic, odorless, and colorless in its natural state. Mercaptan, a harmless odorant, is added to create a clearly detectable scent. (For more information, see Appendix B, Natural Gas Safety.) H Clean burning, energy efficient, and abundant. Natural gas is an ideal choice if you care about the environment. H Versatile. Natural gas can be used for space and water heating, air conditioning, cooking, fireplaces, clothes drying, barbecues, pools, spas, patio and deck heaters, outdoor decorative lighting, and emergency generators. To learn more about the benefits of natural gas, visit our web site at PSE.com
What this handbook contains This handbook provides you with information about natural gas service from PSE, including: H How to determine natural gas availability and costs. H Where to locate your natural gas meter. H How to find dealers and contractors to assist you with the purchase and installation of new natural gas equipment and appliances. H What is included in a service. H Natural gas safety. H PSE's Service Quality Guarantee. PSE's service territory maps
For your reference, the territory map in Appendix A provides the general boundaries for PSE's natural gas service. A Customer Construction Services representative can help you to determine the closest available gas facilities and can provide you with cost information for establishing new service. Glossary of terms used in this handbook
For your convenience, glossary words appear in bold italics throughout the text the first time they appear (e.g., meter). The glossary is found at the end of this handbook.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
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PREFACE
Codes and jurisdictions Please remember that when it comes to installing new natural gas equipment and appliances, it is your responsibility to secure all necessary permits and ensure your project complies with all applicable state, county, and local laws and/or ordinances relating to the equipment. Your heating contractor usually obtains permits and facilitates approvals for you, but it is good to confirm this with your contractor.
How to contact Puget Sound Energy You can obtain further information by contacting us through the following: H PSE Energy Advisors at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m. H PSE Customer Construction Servicess at 1‐888‐321‐7779—Monday–Friday, 7 a.m.–5 p.m. If you have any general billing questions regarding your account, please call Customer Service at 1‐888‐225‐5773—24 hours a day, 7 days a week.
PSE's Service Providers PSE contracts with two partner companies to provide construction and engineering services: Potelco, Inc. and Pilchuck Contractors, Inc. The project manager and the employees who install your service may work for these service providers on PSE's behalf.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PREFACE
Overview: Bringing Natural Gas to Your Home This checklist notes the steps to convert to a single‐family residence to natural gas service. This information applies only if Puget Sound Energy has an existing natural gas main in the street in front of your home. If a natural gas main is not readily available, we will need to engineer your project. If you have any questions, please call: CUSTOMER CONSTRUCTION SERVICES 1‐888‐321‐7779 Natural Gas Installation Steps: o o
o o o o o o
Call Customer Construction Services (CCS) to determine if a natural gas main is located in the street in front of your home. Obtain proposals from heating contractors and decide what kind of natural gas appliances and equipment you will purchase and at what cost. Remember, it is your responsibility to provide the required fuel line from the natural gas meter to your new equipment. o PSE offers different delivery pressure options that depend upon equipment load and equipment pressure requirements, which may result in special meter set and customer installation requirements (your contractor can help you with this). o Determine the total gas load your appliances and equipment will require (your contractor can help you with this). PSE advises you to NOT remove your existing heating equipment or appliances prior to your gas service and meter installation. A PSE representative will contact you to confirm project details, such as service length, customer provided conduit, etc. Complete and return the Gas Service Application (provided by a PSE representative or available at PSE.com). Provide PSE with an approved gas meter location (Chapter 3). Provide a clear path for your service line installation and determine the service line length. On the day your new natural gas equipment is installed in your house, please call PSE after your fuel line has been inspected and approved by your city or county building department, so that PSE may unlock the gas service valve, turn on the meter, and start‐up your appliances. o Only authorized PSE personnel can remove the gas service lock and operate the valve.
Puget Sound Energy's Responsibilities: o o o
o o
Determine and inform you of gas availability. Perform an economic feasibility study and determine costs, if applicable. Notify you of: o Right‐of‐way or easement requirements. o Additional permit requirements related to natural gas service/main line construction (fisheries, etc.), if necessary. Install the natural gas main, service, and meter set assembly. Turn on natural gas meter.
Scheduling: o
Scheduling will be based on a mutually agreed upon time frame that is consistent with your needs, permit requirements, and design criteria.
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PREFACE
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
STEPS TO A SMOOTH INSTALLATION
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Chapter 1 Steps to a Smooth Installation Converting to natural gas Converting to natural gas is a joint project between you and Puget Sound Energy. You are responsible for your gas fuel line installation and your gas appliance hookup, which includes selecting heating and appliance dealers and contractors. PSE is responsible for the installation of the gas service line and meter. Figure 1 illustrates an installed gas system.
Customer's Appliance
Ï ÏÏ Ï
Figure 1 Gas system responsibilities
Getting started with the installation Before the conversion process can begin, you need to know the following: Is a gas main located in front of your home?
To determine if a natural gas main is located in front of your property, call Customer Construction Services (CCS) at 1‐888‐321‐7779. If a natural gas main is available, see Chapter 2: Service from an existing main. If there is no gas main located in front of your home, PSE will review and estimate the feasibility of extending gas facilities to you. If PSE determines that extending a gas main to you is feasible, main extension charges may apply. The process of bringing a new gas main to your area is outlined in Chapter 2: Service with a main extension.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
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STEPS TO A SMOOTH INSTALLATION
What natural gas appliances will be installed in your home?
Next, you will need to decide what natural gas appliances will be installed in your home so you can inform PSE of your estimated natural gas load/usage and pressure requirements. Your appliance or equipment dealer will evaluate your total natural gas load by estimating all gas appliance or equipment use (immediate and future) in British thermal units (Btu). Remember, besides space and water heating, natural gas can be used for clothes drying, cooking, pool and spa heating, barbecues, fireplaces, patio heaters, and emergency generators. Some pieces of equipment, such as on-demand (tankless) water heaters and natural gas fueled standby generators, require higher natural gas service delivery pressure or a larger gas meter. If you are installing this sort of equipment now, or if you are planning to in the future, please let us know in advance so that your meter and service piping can be designed and engineered properly. Customer fuel line
The fuel line is the gas piping (owned and maintained by the customer) from the meter to the customer’s appliances. For your information, three types of fuel line is commonly available: 1. Rigid steel piping -- Typically, threaded rigid steel pipe is used for natural gas piping. 2. Flexible Corrugated Stainless Steel Tubing -- Corrugated stainless steel tubing (CSST) is a cost-effective, efficient, and safe way to run natural gas piping. Due to its flexibility, CSST can be installed where rigid pipe may not be feasible. 3. Flexible copper tubing -- Flexible copper tube is another option for natural gas fuel line. At PSE’s standard delivery pressure of 6 inches w.c., flexible tubing may need to be a larger diameter than rigid steel pipe. Ask your appliance installer about the flexible tubing and the savings possible compared to rigid steel piping. NOTE: Tubing has different flow properties than steel piping; therefore, it may require a
higher gas delivery pressure. Higher delivery pressure will require PSE to install different equipment. Please check with your appliance installer to confirm your pressure requirement.
NOTE: The International Fuel Gas code (as adopted by the State of Washington)
regulates the design and installation of fuel lines and appliances. It will be your responsibility to ensure that a mechanical permit or a gas piping permit is obtained from your city or county building department, and that the building department performs an inspection of the completed installation.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
STEPS TO A SMOOTH INSTALLATION
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Customer Responsibilities, underground fuel line piping
Fuel gas piping between your gas meter and your natural gas appliances or equipment belongs to you. If any of this piping runs underground, it needs to be maintained. Underground fuel line might be installed to serve a hot tub, pool, shop, other building, or a natural gas fueled standby generator. NOTE: It is your responsibility to maintain underground fuel line piping.
If your buried piping is not maintained, it may leak or corrode. Be sure to periodically inspect buried pipes for leaks, and if the piping is metallic, inspect for corrosion. Make sure repairs are done immediately to correct any unsafe condition. A corrosion control company or a plumbing or heating contractor can help inspect it and repair it. If you plan to excavate near your buried piping, it should be located in advance and the excavation should be done by hand. ONE‐CALL Center is a free service provided to prevent damage to underground utilities by excavation. Notification is required 2 business days in advance for utilities to be located. The ONE‐CALL Center can be reached by calling 1‐800‐424‐5555, via the web (click ITIC at callbeforeyoudig.org), and with a wireless or landline service phone number (users can call 811). If you smell the rotten egg smell of odorized natural gas, call PSE 24 hours a day at 1‐888‐225‐5773 and we will check it for you. For emergencies, call 911. CAUTION: When excavating near buried gas piping, locate the piping first, then excavate by hand.
What are the costs and savings of converting to natural gas? The answer to this question will be different for every conversion customer. The total cost is affected by the following factors: H Whether you require a simple service hookup or main extension. H The one‐time investment to buy and hook up your natural gas appliances. H How soon your natural gas use begins. H The payback period (the time it takes for energy savings to pay off your new equipment and gas installation costs, if any). Gas main extension costs
If a gas main is not available in front of your home, a gas main extension may be necessary. The cost, if any, for a main extension will be calculated by a PSE project manager. The following information is used to calculate the estimated cost: H Length of the proposed main extension. H Square footage (heated) of your home. H Intended uses of natural gas, such as furnace or hot water heater. H Number of initial customers requesting gas service along the proposed gas main route.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
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STEPS TO A SMOOTH INSTALLATION
Purchase and installation costs of new appliances and equipment
To determine the total cost of converting your home to natural gas, we suggest you obtain an estimate from a heating equipment dealer and contractor for the cost to purchase and install your natural gas appliances/equipment. PSE's Contractor Referral Servicet will help you find registered dealers and contractors (see Chapter 4, Contractor Referral Service). Before you sign a contract for the purchase and installation of your new gas equipment, make sure you know the cost, if applicable, to have a gas service line extension and/or gas main extension provided to your home. PSE will supply the service line and set the gas meter at your home. Your heating dealer will provide and install the gas equipment in your home and provide the gas fuel line from your gas meter to the equipment.
Unused facility charges If Puget Sound Energy installs a new gas facility and it is not used within 12 months, you may be held financially responsible for the installation in accordance with Rule 7 of the PSE Gas Tariff.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
BRINGING NATURAL GAS TO YOUR HOME
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Chapter 2 Bringing Natural Gas to Your Home
In Chapter 1, you determined whether your gas service site is within Puget Sound Energy's service territory and if an existing natural gas main is in front of your home. You also learned how to estimate your natural gas load. Now you are ready to: H Complete and submit a Gas Service Application-100G to your Customer Construction Services (CCS) representative. H Select a gas meter location that complies with the requirements in Chapter 3, Selecting a gas meter location. Clearly mark the location with Form 1461, the gold Gas Meter Location sticker (located in the back pocket of this handbook). H Schedule your natural gas service installation.
Service from an existing main In many cases, if a natural gas main already exists in the street in front of your home, you may qualify for a service line at no charge. Running a service from an existing main is the most common gas installation PSE does.
Service with a main extension If a natural gas main does not exist in front of your home, a gas main extension will be necessary. A PSE representative will evaluate the feasibility of bringing natural gas service to your home, describe the project scope and time, as well as provide an estimated cost to extend the natural gas main to your house. To initiate this process, please call 1‐888‐321‐7779.
Scheduling your installation Scheduling your installation will be based upon a mutually agreed upon time frame that is consistent with your needs, permit requirements, and design criteria.
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BRINGING NATURAL GAS TO YOUR HOME
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
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Chapter 3 Installing Your Natural Gas Service Before Puget Sound Energy can start the natural gas meter installation, we request that you determine and mark the gas meter location with Form 1461, the gold Gas Meter Location sticker (provided for you in the back pocket of this handbook). NOTE: This section refers to the illustrations found in Form 3885, Installation Requirements for Gas Meter Set Assemblies, found in the back pocket of this handbook.
Selecting a gas meter location Safe installation and operation of your gas service equipment is our primary concern. An approved natural gas meter location is one that is in accordance with regulatory requirements and meets PSE’s construction standards. Recommended location
Puget Sound Energy generally requires that you locate the meter on the front 1/3 of the structure. This location allows easy access to the meter set assembly riser shutoff valve (Figure 3) in an emergency, and allows PSE ready access for meter reading and servicing. Acceptable meter locations
Please refer to Form 3885, Installation Requirements for Gas Meter Set Assemblies, found in the back pocket of this handbook. NOTE: Talk to your local PSE representative for information about the requirements for
protecting your meter from floods, ice, and snow. For service installations in Snow Country, see Form 3736, Gas Meter Set Assembly Protection from Snow and Ice in Snow Country.
Guard post requirements
For residential meters that are adjacent to driveways or other traffic, guard posts shall be installed according to the following requirements: H All guard posts must be mounted preferably 12 inches, 8 inches minimum, (see Dimension A in Figure 2), from the front of the meter set assembly, and a minimum of 6 inches from either side. See Figure 2. NOTE: All guard post spacing distances are measured from the center of the guard post. H If the meter set assembly will be adjacent to a residential driveway: -- Guard posts must be constructed with 2-1/2-inch-diameter steel pipe, 6 feet long, filled with wet concrete and domed on top. -- Each guard post shall be embedded in a minimum 8-inch-diameter, 30-inch-deep concrete base, with at least 24 inches of the guard post encased in the base and at least 42 inches above final grade.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
H If the meter set assembly will be adjacent to more extensive traffic, such as an alley, parking area, or commercial driveway: -- Guard posts must be constructed with 4-inch-diameter steel pipe, 6 feet long, filled with wet concrete and domed on top. -- Each guard post shall be embedded in a minimum 15-inch-diameter, 30-inch-deep concrete base, with at least 24 inches of the guard post encased in the base and at least 42 inches above final grade. H A typical meter set assembly installation requiring guard posts will use two guard posts. -- Spacing between guard posts must be the length of the meter set assembly plus 12 inches (see Dimension B in Figure 2). -- Only one guard post is required if the driveway does not extend past the meter set assembly. H If the meter set assembly is subject to vehicular damage from multiple directions and if the outer guard posts exceed 28 inches maximum spacing, additional guard posts shall be installed, evenly spaced, between them, and all posts shall be 12 inches minimum from the front of the meter. H Guard posts should be painted “caution” yellow, especially those located in commercial or industrial locations, street rights-of-way, and alleyways. NOTE: All guard post spacing distances are measured from the center of the guard post. 2-1/2I Dia steel pipes filled with concrete
42I Min abovegrade
6I Min
Building Wall
8
A
B
6I Min
24I 30I Concrete base with guard post
Driveway or parking area
TOP VIEW GUARD POST LOCATIONS
Figure 2 Residential meter guard post requirements
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
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Minimum meter clearance requirements
Minimum clearances are measured from the regulator relief vent or the gas meter set assembly (Figure 3). The regulator relief vent exhausts natural gas safely into the atmosphere if the regulator on your meter fails to work properly. The diagrams and the measurements provided in Form 3885, Installation Requirements for Gas Meter Set Assemblies (provided in the back pocket of this handbook), show the required minimum distances between building features and the relief vent or the meter set assembly.
Regulator Meter Outlet Valve (Open)
Regulator
Typical Fuel Line Height 42I
Regulator Relief Vent
Regulator Relief Vent Typical Fuel Line Height 26I
Riser Shutoff Valve (Open)
250 Meter
Riser Shutoff Valve (Open)
425 Meter
Riser
Riser
Figure 3 Typical 250 or 425 in service residential gas meter set assembly
Improper electrical grounding
Natural gas risers, up to and including the meter set, should not be used as a grounding electrode. An electrical ground connection to a natural gas riser could result in a hazardous condition and can compromise PSE’s Corrosion Protection System.
Meter installation and turn-on The service line, riser, and gas meter can be installed once the customer has determined and marked the gas meter location with Form 1461, the gold Gas Meter Location sticker, or has stubbed out the fuel line. See previous section for guidance in selecting the appropriate meter location. Figure 4 shows the typical components for a new (inches water column delivery) gas meter set assembly installation. When PSE installs the gas meter assembly, the following components will be installed: H The riser shutoff valve will be locked in the closed (off) position. Removal of this lock or operation of this valve by unauthorized persons may damage this equipment and is prohibited.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
10 INSTALLING YOUR NATURAL GAS SERVICE
H An orange WARNING tag will be attached above the locked riser shutoff valve (see Figure 5). H The meter outlet valve will be in the closed (off) position (depending on gas load, the meter configuration may change). Before the gas meter can be turned on, the fuel line shall be inspected, approved, and connected to the gas meter (permit signed and approved by the local administrative authority). To arrange for the gas meter turn‐on, please call PSE at 1‐888‐225‐5773. Call by 3:00 PM for same day gas meter turn‐on for up to two meters. For facilities with more than two meters, call PSE to schedule the meter turn‐on. This applies on regular business days, subject to delays associated with major storms, earthquakes, supply interruptions, or other adverse events beyond PSE's control. PSE will turn on the gas meter and verify operation of new gas appliances.
Bypass Valve with Lock (Closed)
Meter Inlet Valve (Closed) Meter Outlet Valve (Closed)
Regulator Meter Outlet Valve (Closed)
Regulator
Regulator Relief Vent
Regulator Relief Vent Warning Tag & Seal (see Figure 5)
Warning Tag & Seal (see Figure 5)
425 Meter Universal Valve Lock
Universal Valve Lock Riser
Riser Shutoff Valve (Closed)
250 Meter Riser Shutoff Valve (Closed)
Riser
Figure 4 Typical new residential meter set assembly installation ready for equipment turn‐on.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
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Figure 5 Orange WARNING tag
Trenching in the right‐of‐way PSE takes care of all work in the right‐of‐way including: H Apply for any necessary easements prior to installation. H Apply for necessary permits for the portion of the work done in the public right‐of‐way. H Make a request to locate existing underground utility locations through the Underground Utilities Location Center. You are responsible for locating some underground facilities on private property.
Customer‐provided trench and conduit If you wish to provide your own trench and/or natural gas service conduit on your own property there are specific requirements that you must follow. Contact CCS at 1‐888‐321‐7779 for further information.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
12 INSTALLING YOUR NATURAL GAS SERVICE
Flag and landlocked lots It is not always obvious, when looking at a lot, where the legal boundaries are or how a parcel of property is actually shaped (Figure 6). Often it becomes necessary to look through survey and assessor maps. It is important to tell PSE if you are requesting gas service to either a flag lot or landlocked lot. Knowing these details helps PSE do the required records research in advance and avoid delays in installing service.
CARVER AVE.
CARVER AVE.
ROBERTSON ST.
ROBERTSON ST.
Lot 2 Lot 1
Lot 7
What the Property Looks Like
Lot 5 Lot 6
Lot 3
Lot 4
Flag Lot
Landlocked Lot
Lot 8
Lot 9
Lot 10
What the Records Show
Figure 6 Typical flag and landlocked lots
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PROGRAMS AND SERVICES OFFERED BY PUGET SOUND ENERGY
13
Chapter 4 Programs and Services Offered by Puget Sound Energy Energy Efficiency Programs PSE offers an array of energy efficiency programs to help reduce your home's energy consumption and save your family money. These programs range from cash rebates and home improvement suggestions, to energy use calculators that keep track of your monthly energy usage. The power to conserve and save is in your hands. Ask the Energy Advisors about the rebates that are available when you install energy‐efficient equipment. Call an Energy Advisor at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m., or visit our web site at PSE.com
Contractor Referral Servicet Puts you in touch with quality equipment and services
These days, consumers have many energy‐related choices for their homes or businesses. The questions are endless, from choosing heating and cooling systems to insulation, roofing, fireplaces, heat pumps, windows, or water heaters. Where should you turn for help? Now it's simple: PSE's Contractor Referral Service. PSE created the CRS to assist you in the decision‐making process of choosing energy‐efficient equipment and to help you in selecting prescreened independent contractors. Call to receive a copy of Form 3269, Contractor Referral Service Consumer and Business Guide, which includes tips on how to select energy‐related equipment and services. In addition, the Contractor Referral Service provides you with qualified contractor referrals to install and maintain the most appropriate energy‐efficient equipment for your needs. The Contractor Referral Service has prescreened independent contractors who have satisfied 15 eligibility criteria, including knowledge and experience, financial stability, certifications and bonding, and customer satisfaction. For more information about the Contractor Referral Service, contact an Energy Advisor at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m., or visit our web site at PSE.com
Gas heating system inspection for your furnace Puget Sound Energy recommends regular inspection and maintenance of your natural gas heating equipment. Many manufacturers recommend a thorough service of your natural gas heating equipment every year. With routine inspections, your natural gas heating equipment is more likely to operate safely and efficiently year‐round. For more details, contact an Energy Advisor at 1‐800‐562‐1482.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
14
PROGRAMS AND SERVICES OFFERED BY PUGET SOUND ENERGY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDICES
Appendices
Appendix A H PSE's Natural Gas Service Territory Map
Appendix B H Natural Gas Safety
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
15
16
APPENDIX A: PSE'S NATURAL GAS SERVICE TERRITORY MAP
Appendix A PSE's Natural Gas Service Territory
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDIX B: NATURAL GAS SAFETY
17
Appendix B Natural Gas Safety What is natural gas? Natural gas is 96 percent methane, a natural compound formed as plants, trees, and other organic matter break down. While natural gas is combustible, it ignites only within a narrow range—between 4 and 14 percent gas‐in‐air mixture. In smaller or greater concentrations it will not burn. For this reason, natural gas is a more stable fuel source than propane or gasoline. The exhaust from a properly working natural gas appliance is essentially carbon dioxide and water vapor—the same substances released when we exhale. Natural gas is colorless and has no smell in its natural state. A harmles odorant (mercaptan) is added to create a distinct scent, so that it is easy to detect even the smallest natural gas leak. In addition, natural gas is 40 percent lighter than air. Unlike propane, which will tend to pool close to the ground, if natural gas escapes, it will rise and dissipate safely into the atmosphere.
Things to know about natural gas safety When using any energy source, it is wise to be aware of and follow certain precautions to keep yourself and those around you safe. Here are some of the things you should know to safely obtain gas service and use it safely once it has been established in your structure. Call before you dig!
Be sure to call to have all underground utilities located any time you plan to dig on your property. Washington state law requires that underground utilities be contacted before you begin any project that requires a hole or trench that is 12 inches or deeper. ONE‐CALL Center is a free service provided to prevent damage to underground utilities by excavation. Notification is required 2 business days in advance for utilities to be located. The ONE‐CALL Center can be reached by calling 1‐800‐424‐5555, via the web (click ITIC at callbeforeyoudig.org), or with a wireless or landline service phone number (users can call 811). NOTE: This is required even if you think you know there are no other utilities where you
intend to dig. What to do if you suspect a natural gas leak
The odorant added to the gas will enable you to detect even a small gas leak. However, using your nose is not the only way to detect a leak. Bubbles blowing in a puddle or a hissing sound also may indicate a natural gas leak. If you suspect a natural gas leak, follow these steps to ensure your safety and the safety of those around you: H Leave the building immediately and leave the door open on the way out. Do not use a telephone inside the affected building or do anything that might cause a spark. Do not light a match. Do not turn on a light switch. Do not attempt to put out flames if a gas leak ignites.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
18
APPENDIX B: NATURAL GAS SAFETY
H Use a neighbor's phone or find a pay phone and call PSE's Customer Service at 1‐888‐225‐5773. (If you must use your cellular phone be sure you are well away from the building.) H For emergencies, call 911.
When and how to shut off gas service When an emergency strikes, it is not always necessary to shut off your natural gas service. Knowing when and how to shut off natural gas service can save you from being without gas service needlessly. When to shut off your gas service
It is necessary to shut off your gas service at the service shutoff valve at the meter only when you hear or smell natural gas leaking. If you can't hear it or smell it there is no danger. How to shut off your gas service in an emergency situation
If there is an emergency situation and you need to shut off gas service at your meter, follow these three steps: Step
Action
1
Locate the gas service shutoff valve (usually the first fitting) on the natural gas supply pipe coming out of the ground near the meter.
2
Use a long‐handled wrench to turn the valve one‐quarter turn so that the lever is crosswise to the pipe.
3
Once the gas is off, leave it off. Call Puget Sound Energy to inspect the system, check, and relight appliances. Locating the Gas Service Shutoff Valve (Front View)
Shutoff Valve
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDIX B: NATURAL GAS SAFETY
Closing the Gas Shutoff Valve from the Open Position
19
Gas Shutoff Valve in Closed Position (Side View)
(Side View)
Shutoff Valve in Open Position Shutoff Valve in Closed Position
Turn clockwise 1/4 turn to close valve
NOTE: Contact PSE to open a closed shutoff valve.
In a nonemergency situation
If you need gas service to be shut off for a temporary, nonemergency situation, shut off service at the fuel‐line valve located near the particular appliance.
What is carbon monoxide? Carbon monoxide (CO) is an odorless, tasteless, and invisible gas which can build up when any fuel‐burning equipment—an automobile, fireplace, natural gas or oil furnace, wood stove, propane heater, charcoal grill, or kerosene heater—has insufficient air to burn the fuel completely. Carbon monoxide exposure can be dangerous. Safety precautions
Here are suggestions to guard against carbon monoxide exposure in any structure: H Use only fuel‐burning equipment inside the structure that is designed to operate indoors. Vented gas equipment must vent to the outside according to the manufacturer's specifications. H Make sure fuel‐burning equipment is maintained and operated safely and properly. H Never run an automobile engine, lawn mower, portable generator, or any combustion engine in an enclosed space. H Keep flues and chimneys free of debris and clear of soot buildup. H Consider the installation of a carbon monoxide detector, particularly near sleeping areas in a structure. Know the early symptoms of carbon monoxide poisoning
If you think someone is suffering from carbon monoxide poisoning, move the person outside to fresh air immediately and seek medical help. Early symptoms include: H Dizziness H Flu‐like symptoms H Weakness H Nausea and vomiting H Partial loss of muscular control H Drowsiness
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
20
APPENDIX B: NATURAL GAS SAFETY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
GLOSSARY
21
Glossary
A9 valve - See Meter outlet valve. Appliance shutoff valve - A valve readily accessible and operable by the customer, located on the fuel line at or very near the appliance. H Open position - Valve handle is parallel with the line. H Closed position - Valve is crosswise or at a right angle to the fuel line. Approved - Acceptable to the authority having jurisdiction. Backfill - Earth or other material used to refill a trench. Also, the act of refilling a trench. British thermal unit (Btu) - Quantity of heat necessary to raise one pound of water one degree Fahrenheit at sea level pressure. The heating quality of the gas. Carbon dioxide (CO2 ) - A gas which is a product of combustion, resulting when carbon unites with sufficient oxygen to produce complete combustion. When natural gas burns completely, it produces carbon dioxide and water vapor, as well as heat. Carbon monoxide (CO) - A poisonous combustible gas produced by the incomplete combustion of carbon or reduction of carbon dioxide. Combustion - The process of burning, requiring three components: fuel, air, and ignition temperature. H Complete combustion - Results in carbon dioxide and water vapor; harmless. H Incomplete combustion - Can produce carbon monoxide and aldehydes; potentially hazardous. Conduit - A buried pipe in which the gas service line may be inserted. Conduit helps protect the gas line from damage and allows gas pipe to be replaced without excavating. Conduit is typically installed for road crossings and for service line installations. Department of Transportation (DOT) - The federal regulatory agency that governs gas pipeline safety, transportation of hazardous materials, and administers regulations related to highway rights-of-way. Easement - A document entitling its holder the right to use a specified parcel of property. Easements give Puget Sound Energy the right to install underground natural gas facilities on private property. Emergency - A situation in which there is an immediate threat to life or property. In the case of natural gas, an emergency is an immediate threat and/or the uncontrolled escape of gas. Excess flow valve - An excess flow valve (sometimes called an EFV) is a device installed in a natural gas piping system to limit the amount of natural gas that travels through the pipe in the event the pipe is severed downstream of the EFV. Flag lot - A parcel of property that does not connect directly to a public right-of-way (street) except for a narrow strip of land that touches the public street and is used to access the property. GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
22
GLOSSARY
Fuel line - Gas piping from the meter to the appliance that is owned and maintained by the customer. Ignition temperature of natural gas - Natural gas ignites at about 1,100 degrees Fahrenheit. Ignitor - Any device used to light gas. A spark ignitor uses an electric spark generated across an air gap for this purpose. Joint utility trench - Two or more utilities occupying a common trench. Landlocked lot - A parcel of property that does not connect directly to a public right-of-way (street) and must have an easement to cross another parcel of land to access the property. Load (Gas) - The connected load is calculated by totaling the Btu rating for all gas appliances connected to the meter. Main (Gas) - The distribution line (or pipe) that serves as a common source of supply for more than one service line. Owned and maintained by PSE. Mercaptan - An organic chemical odorant added to natural gas to give it a distinctive smell to alert customers in the case of leaks. Natural gas is odorless in its natural state. Mercaptan smells something like rotten eggs. Meter - A device for measuring and recording the volume of gas used. Meter outlet valve - A positive shutoff valve installed on most residential and small commercial meter set assemblies. The valve is located on the outlet of the meter and is connected to the fuel line. Methane gas (CH4 ) - A hydrocarbon gas that is the main component of natural gas (about 96 percent). It is colorless, odorless, and flammable and the same substance produced in some swamps, sewers, and landfills. MSA - Meter set assembly. Natural gas - A naturally occurring mixture of flammable hydrocarbon and nonhydrocarbon gases found in porous geologic formations beneath the earth’s surface; often in association with petroleum. It’s supplied as a fuel for millions of applications worldwide. The chemical composition is approximately 96 percent methane, 2 percent ethane, and 2 percent inert gases. Propane gas (C3 H8 ) - A colorless flammable gas found in petroleum and natural gas. It is odorized to make it easy to detect (smells sort of like garlic), heavier than air (specific gravity of 1.5), and has a 2544 Btu per cubic foot. (Natural gas contains about 1060 Btu per cubic foot.) Rate - Method of charging for energy usage (for therms used). Regulator (also Pressure regulator) - A device to lower the gas pressure. District regulators lower the pressure in mains, meter regulators lower pressure at the meter, and appliance regulators lower pressure at the appliance. Right-of-way - A collection of easements and/or permits allowing the holder to specific limited use of a parcel(s) of property (such as running a gas main through private properties or a dedicated area for use by the public for travel and utilities). This term refers to the land itself, not the right of passage over it. (See also: Easement). Riser - The portion of the service that terminates aboveground at the structure to support the meter.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
GLOSSARY
23
Riser shutoff valve - A positive shutoff valve on all metering and/or service regulating facilities. The valve is located immediately upstream (on the service line side) of the meter set assembly. H Open position - Valve handle is parallel with the line. H Closed position - Valve is crosswise or at a right angle to the fuel line. Service - The pipe which carries gas from the main to the customer’s meter. Service shutoff valve - A convenient shutoff located outside of the customer’s building. If the meter is located outside of the building, the riser shutoff valve may also serve as the service shutoff valve. In some commercial service applications this valve may be buried and located in the right-of-way at the customer’s property line. Snow Country - Geographical locations in Cle Elum and west of Cle Elum in upper Kittitas County. Stub - A unit of property where gas pipe extends from the main in the right-of-way to the property line; or, if the main is in a 10-foot utility easement for joint trench construction or in any easement of defined dimensions, the stub is that portion of the service from the main to the field side edge of the easement; or, if the main is in an easement that covers the entire parcel or has no defined dimensions, the stub is the first 2 feet of the service. Therm - A therm of gas containing 100,000 Btu of energy and is roughly equivalent to 100 cubic feet of gas. Trench - An excavated ditch of specific depth and width into which underground utility lines are installed. Utility - Includes all wet and dry public or private utilities, including, but not limited to: electric, TV, cable, water/sewer, sprinkler system pipe, and building drains. Washington Utilities and Transportation Commission (WUTC) - The WUTC protects consumers by ensuring that utility and transportation services are fairly priced, available, reliable and safe. PSE may petition the Commission to add, change, or delete rules and increase or change rates. Customers may request the Commission to resolve a dispute with or a complaint against the Company.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
24
GLOSSARY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
Notes
Notes
Gas Service Handbook Residential Conversion to Natural Gas
Form No. 2770 (Rev. 11)
E 2010 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval system, without permission from Puget Sound Energy (PSE).
Puget Sound Energy Standards Department P.O. Box 97034 EST-07W Bellevue, WA 98009-9734 1‐888‐225‐5773
Puget Sound Energy's pledge to you is simple: u
We will connect new permanent service lines and meters when mutually agreed.
u
We will reestablish existing natural gas and electric service following move‐out/move‐in or disconnection for non‐payment when mutually agreed.
u
We will keep natural gas equipment service appointments when mutually agreed.
u
If we fail to keep these commitments, we will credit your account $50. Note: This guarantee applies in the absence of major storms, earthquakes, supply interruptions, or other adverse events beyond our control. In these cases, we will reschedule service appointments as quickly as possible.
TABLE OF CONTENTS
Table Of Contents Preface Natural gas—the smart choice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What this handbook contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSE's service territory maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary of terms used in this handbook . . . . . . . . . . . . . . . . . . . . . . . . . . . . Codes and jurisdictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to contact Puget Sound Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSE's Service Providers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview: Bringing Natural Gas to Your Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iii iii iii iii iv iv iv v
Chapter 1 Steps to a Smooth Installation Converting to natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting started with the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Is there a gas main located in front of your home? . . . . . . . . . . . . . . . . . . . . . What natural gas appliances will be installed in your home? . . . . . . . . . . . . . Customer fuel line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Customer Responsibilities, underground fuel line piping . . . . . . . . . . . . . . . What are the costs and savings of converting to natural gas? . . . . . . . . . . . . . . . . . . . Gas main extension costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Purchase and installation costs of new appliances and equipment . . . . . . . . . Unused facility charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 1 1 2 2 3 3 3 4 4
Chapter 2 Bringing Natural Gas to Your Home Service from an existing main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service with a main extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scheduling your installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 5 5
Chapter 3 Installing Your Natural Gas Service Selecting a gas meter location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acceptable meter locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Guard post requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Minimum meter clearance requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Improper electrical grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Meter installation and turn‐on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trenching in the right‐of‐way . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Customer‐provided trench and conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flag and landlocked lots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
7 7 7 7 9 9 9 11 11 12
i
ii
TABLE OF CONTENTS
Chapter 4: Programs and Services Offered by Puget Sound Energy Energy Efficiency Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contractor Referral Servicet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gas heating system inspection for your furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 13 13
Appendix A PSE's Natural Gas Service Territory Map .........................................................
16
Appendix B Natural Gas Safety What is natural gas? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Things to know about natural gas safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call before you dig! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What to do if you suspect a natural gas leak . . . . . . . . . . . . . . . . . . . . . . . . . When and how to shut off gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . When to shut off your gas service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . How to shut off your gas service in an emergency situation . . . . . . . . . . . . . In a nonemergency situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What is carbon monoxide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Know the early symptoms of carbon monoxide poisoning . . . . . . . . . . . . . .
17 17 17 17 18 18 18 19 19 19 19
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6
Gas system responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Residential meter guard post requirements . . . . . . . . . . . . . . . . . . . . . . . Typical 250 or 425 in service residential gas meter set assembly . . . . . . Typical new residential meter set assembly installation ready for equipment turn‐on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Orange WARNING Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typical flag and landlocked lots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 8 9 10 11 12
Back Pocket Gas Meter Location Sticker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Natural Gas Customer Rights and Responsibilities . . . . . . . . . . . . . . . . . . Contractor Referral Servicet Request Card . . . . . . . . . . . . . . . . . . . . . . . Installation Requirements for Gas Meter Set Assemblies . . . . . . . . . . . . .
Form 1461 Form 1602 Form 2811 Form 3885
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PREFACE
iii
Preface Natural gas—the smart choice Every year, thousands of consumers call us about switching to natural gas because using natural gas is safe, clean, affordable, and an efficient energy choice. Consider the following benefits: H Reliable. Even during major power outages, gas ranges, water heaters, and some fireplaces still work. H Safe. Natural gas is nontoxic, odorless, and colorless in its natural state. Mercaptan, a harmless odorant, is added to create a clearly detectable scent. (For more information, see Appendix B, Natural Gas Safety.) H Clean burning, energy efficient, and abundant. Natural gas is an ideal choice if you care about the environment. H Versatile. Natural gas can be used for space and water heating, air conditioning, cooking, fireplaces, clothes drying, barbecues, pools, spas, patio and deck heaters, outdoor decorative lighting, and emergency generators. To learn more about the benefits of natural gas, visit our web site at PSE.com
What this handbook contains This handbook provides you with information about natural gas service from PSE, including: H How to determine natural gas availability and costs. H Where to locate your natural gas meter. H How to find dealers and contractors to assist you with the purchase and installation of new natural gas equipment and appliances. H What is included in a service. H Natural gas safety. H PSE's Service Quality Guarantee. PSE's service territory maps
For your reference, the territory map in Appendix A provides the general boundaries for PSE's natural gas service. A Customer Construction Services representative can help you to determine the closest available gas facilities and can provide you with cost information for establishing new service. Glossary of terms used in this handbook
For your convenience, glossary words appear in bold italics throughout the text the first time they appear (e.g., meter). The glossary is found at the end of this handbook.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
iv
PREFACE
Codes and jurisdictions Please remember that when it comes to installing new natural gas equipment and appliances, it is your responsibility to secure all necessary permits and ensure your project complies with all applicable state, county, and local laws and/or ordinances relating to the equipment. Your heating contractor usually obtains permits and facilitates approvals for you, but it is good to confirm this with your contractor.
How to contact Puget Sound Energy You can obtain further information by contacting us through the following: H PSE Energy Advisors at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m. H PSE Customer Construction Servicess at 1‐888‐321‐7779—Monday–Friday, 7 a.m.–5 p.m. If you have any general billing questions regarding your account, please call Customer Service at 1‐888‐225‐5773—24 hours a day, 7 days a week.
PSE's Service Providers PSE contracts with two partner companies to provide construction and engineering services: Potelco, Inc. and Pilchuck Contractors, Inc. The project manager and the employees who install your service may work for these service providers on PSE's behalf.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PREFACE
Overview: Bringing Natural Gas to Your Home This checklist notes the steps to convert to a single‐family residence to natural gas service. This information applies only if Puget Sound Energy has an existing natural gas main in the street in front of your home. If a natural gas main is not readily available, we will need to engineer your project. If you have any questions, please call: CUSTOMER CONSTRUCTION SERVICES 1‐888‐321‐7779 Natural Gas Installation Steps: o o
o o o o o o
Call Customer Construction Services (CCS) to determine if a natural gas main is located in the street in front of your home. Obtain proposals from heating contractors and decide what kind of natural gas appliances and equipment you will purchase and at what cost. Remember, it is your responsibility to provide the required fuel line from the natural gas meter to your new equipment. o PSE offers different delivery pressure options that depend upon equipment load and equipment pressure requirements, which may result in special meter set and customer installation requirements (your contractor can help you with this). o Determine the total gas load your appliances and equipment will require (your contractor can help you with this). PSE advises you to NOT remove your existing heating equipment or appliances prior to your gas service and meter installation. A PSE representative will contact you to confirm project details, such as service length, customer provided conduit, etc. Complete and return the Gas Service Application (provided by a PSE representative or available at PSE.com). Provide PSE with an approved gas meter location (Chapter 3). Provide a clear path for your service line installation and determine the service line length. On the day your new natural gas equipment is installed in your house, please call PSE after your fuel line has been inspected and approved by your city or county building department, so that PSE may unlock the gas service valve, turn on the meter, and start‐up your appliances. o Only authorized PSE personnel can remove the gas service lock and operate the valve.
Puget Sound Energy's Responsibilities: o o o
o o
Determine and inform you of gas availability. Perform an economic feasibility study and determine costs, if applicable. Notify you of: o Right‐of‐way or easement requirements. o Additional permit requirements related to natural gas service/main line construction (fisheries, etc.), if necessary. Install the natural gas main, service, and meter set assembly. Turn on natural gas meter.
Scheduling: o
Scheduling will be based on a mutually agreed upon time frame that is consistent with your needs, permit requirements, and design criteria.
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v
vi
PREFACE
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
STEPS TO A SMOOTH INSTALLATION
1
Chapter 1 Steps to a Smooth Installation Converting to natural gas Converting to natural gas is a joint project between you and Puget Sound Energy. You are responsible for your gas fuel line installation and your gas appliance hookup, which includes selecting heating and appliance dealers and contractors. PSE is responsible for the installation of the gas service line and meter. Figure 1 illustrates an installed gas system.
Customer's Appliance
Ï ÏÏ Ï
Figure 1 Gas system responsibilities
Getting started with the installation Before the conversion process can begin, you need to know the following: Is a gas main located in front of your home?
To determine if a natural gas main is located in front of your property, call Customer Construction Services (CCS) at 1‐888‐321‐7779. If a natural gas main is available, see Chapter 2: Service from an existing main. If there is no gas main located in front of your home, PSE will review and estimate the feasibility of extending gas facilities to you. If PSE determines that extending a gas main to you is feasible, main extension charges may apply. The process of bringing a new gas main to your area is outlined in Chapter 2: Service with a main extension.
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2
STEPS TO A SMOOTH INSTALLATION
What natural gas appliances will be installed in your home?
Next, you will need to decide what natural gas appliances will be installed in your home so you can inform PSE of your estimated natural gas load/usage and pressure requirements. Your appliance or equipment dealer will evaluate your total natural gas load by estimating all gas appliance or equipment use (immediate and future) in British thermal units (Btu). Remember, besides space and water heating, natural gas can be used for clothes drying, cooking, pool and spa heating, barbecues, fireplaces, patio heaters, and emergency generators. Some pieces of equipment, such as on-demand (tankless) water heaters and natural gas fueled standby generators, require higher natural gas service delivery pressure or a larger gas meter. If you are installing this sort of equipment now, or if you are planning to in the future, please let us know in advance so that your meter and service piping can be designed and engineered properly. Customer fuel line
The fuel line is the gas piping (owned and maintained by the customer) from the meter to the customer’s appliances. For your information, three types of fuel line is commonly available: 1. Rigid steel piping -- Typically, threaded rigid steel pipe is used for natural gas piping. 2. Flexible Corrugated Stainless Steel Tubing -- Corrugated stainless steel tubing (CSST) is a cost-effective, efficient, and safe way to run natural gas piping. Due to its flexibility, CSST can be installed where rigid pipe may not be feasible. 3. Flexible copper tubing -- Flexible copper tube is another option for natural gas fuel line. At PSE’s standard delivery pressure of 6 inches w.c., flexible tubing may need to be a larger diameter than rigid steel pipe. Ask your appliance installer about the flexible tubing and the savings possible compared to rigid steel piping. NOTE: Tubing has different flow properties than steel piping; therefore, it may require a
higher gas delivery pressure. Higher delivery pressure will require PSE to install different equipment. Please check with your appliance installer to confirm your pressure requirement.
NOTE: The International Fuel Gas code (as adopted by the State of Washington)
regulates the design and installation of fuel lines and appliances. It will be your responsibility to ensure that a mechanical permit or a gas piping permit is obtained from your city or county building department, and that the building department performs an inspection of the completed installation.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
STEPS TO A SMOOTH INSTALLATION
3
Customer Responsibilities, underground fuel line piping
Fuel gas piping between your gas meter and your natural gas appliances or equipment belongs to you. If any of this piping runs underground, it needs to be maintained. Underground fuel line might be installed to serve a hot tub, pool, shop, other building, or a natural gas fueled standby generator. NOTE: It is your responsibility to maintain underground fuel line piping.
If your buried piping is not maintained, it may leak or corrode. Be sure to periodically inspect buried pipes for leaks, and if the piping is metallic, inspect for corrosion. Make sure repairs are done immediately to correct any unsafe condition. A corrosion control company or a plumbing or heating contractor can help inspect it and repair it. If you plan to excavate near your buried piping, it should be located in advance and the excavation should be done by hand. ONE‐CALL Center is a free service provided to prevent damage to underground utilities by excavation. Notification is required 2 business days in advance for utilities to be located. The ONE‐CALL Center can be reached by calling 1‐800‐424‐5555, via the web (click ITIC at callbeforeyoudig.org), and with a wireless or landline service phone number (users can call 811). If you smell the rotten egg smell of odorized natural gas, call PSE 24 hours a day at 1‐888‐225‐5773 and we will check it for you. For emergencies, call 911. CAUTION: When excavating near buried gas piping, locate the piping first, then excavate by hand.
What are the costs and savings of converting to natural gas? The answer to this question will be different for every conversion customer. The total cost is affected by the following factors: H Whether you require a simple service hookup or main extension. H The one‐time investment to buy and hook up your natural gas appliances. H How soon your natural gas use begins. H The payback period (the time it takes for energy savings to pay off your new equipment and gas installation costs, if any). Gas main extension costs
If a gas main is not available in front of your home, a gas main extension may be necessary. The cost, if any, for a main extension will be calculated by a PSE project manager. The following information is used to calculate the estimated cost: H Length of the proposed main extension. H Square footage (heated) of your home. H Intended uses of natural gas, such as furnace or hot water heater. H Number of initial customers requesting gas service along the proposed gas main route.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
4
STEPS TO A SMOOTH INSTALLATION
Purchase and installation costs of new appliances and equipment
To determine the total cost of converting your home to natural gas, we suggest you obtain an estimate from a heating equipment dealer and contractor for the cost to purchase and install your natural gas appliances/equipment. PSE's Contractor Referral Servicet will help you find registered dealers and contractors (see Chapter 4, Contractor Referral Service). Before you sign a contract for the purchase and installation of your new gas equipment, make sure you know the cost, if applicable, to have a gas service line extension and/or gas main extension provided to your home. PSE will supply the service line and set the gas meter at your home. Your heating dealer will provide and install the gas equipment in your home and provide the gas fuel line from your gas meter to the equipment.
Unused facility charges If Puget Sound Energy installs a new gas facility and it is not used within 12 months, you may be held financially responsible for the installation in accordance with Rule 7 of the PSE Gas Tariff.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
BRINGING NATURAL GAS TO YOUR HOME
5
Chapter 2 Bringing Natural Gas to Your Home
In Chapter 1, you determined whether your gas service site is within Puget Sound Energy's service territory and if an existing natural gas main is in front of your home. You also learned how to estimate your natural gas load. Now you are ready to: H Complete and submit a Gas Service Application-100G to your Customer Construction Services (CCS) representative. H Select a gas meter location that complies with the requirements in Chapter 3, Selecting a gas meter location. Clearly mark the location with Form 1461, the gold Gas Meter Location sticker (located in the back pocket of this handbook). H Schedule your natural gas service installation.
Service from an existing main In many cases, if a natural gas main already exists in the street in front of your home, you may qualify for a service line at no charge. Running a service from an existing main is the most common gas installation PSE does.
Service with a main extension If a natural gas main does not exist in front of your home, a gas main extension will be necessary. A PSE representative will evaluate the feasibility of bringing natural gas service to your home, describe the project scope and time, as well as provide an estimated cost to extend the natural gas main to your house. To initiate this process, please call 1‐888‐321‐7779.
Scheduling your installation Scheduling your installation will be based upon a mutually agreed upon time frame that is consistent with your needs, permit requirements, and design criteria.
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6
BRINGING NATURAL GAS TO YOUR HOME
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
7
Chapter 3 Installing Your Natural Gas Service Before Puget Sound Energy can start the natural gas meter installation, we request that you determine and mark the gas meter location with Form 1461, the gold Gas Meter Location sticker (provided for you in the back pocket of this handbook). NOTE: This section refers to the illustrations found in Form 3885, Installation Requirements for Gas Meter Set Assemblies, found in the back pocket of this handbook.
Selecting a gas meter location Safe installation and operation of your gas service equipment is our primary concern. An approved natural gas meter location is one that is in accordance with regulatory requirements and meets PSE’s construction standards. Recommended location
Puget Sound Energy generally requires that you locate the meter on the front 1/3 of the structure. This location allows easy access to the meter set assembly riser shutoff valve (Figure 3) in an emergency, and allows PSE ready access for meter reading and servicing. Acceptable meter locations
Please refer to Form 3885, Installation Requirements for Gas Meter Set Assemblies, found in the back pocket of this handbook. NOTE: Talk to your local PSE representative for information about the requirements for
protecting your meter from floods, ice, and snow. For service installations in Snow Country, see Form 3736, Gas Meter Set Assembly Protection from Snow and Ice in Snow Country.
Guard post requirements
For residential meters that are adjacent to driveways or other traffic, guard posts shall be installed according to the following requirements: H All guard posts must be mounted preferably 12 inches, 8 inches minimum, (see Dimension A in Figure 2), from the front of the meter set assembly, and a minimum of 6 inches from either side. See Figure 2. NOTE: All guard post spacing distances are measured from the center of the guard post. H If the meter set assembly will be adjacent to a residential driveway: -- Guard posts must be constructed with 2-1/2-inch-diameter steel pipe, 6 feet long, filled with wet concrete and domed on top. -- Each guard post shall be embedded in a minimum 8-inch-diameter, 30-inch-deep concrete base, with at least 24 inches of the guard post encased in the base and at least 42 inches above final grade.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
H If the meter set assembly will be adjacent to more extensive traffic, such as an alley, parking area, or commercial driveway: -- Guard posts must be constructed with 4-inch-diameter steel pipe, 6 feet long, filled with wet concrete and domed on top. -- Each guard post shall be embedded in a minimum 15-inch-diameter, 30-inch-deep concrete base, with at least 24 inches of the guard post encased in the base and at least 42 inches above final grade. H A typical meter set assembly installation requiring guard posts will use two guard posts. -- Spacing between guard posts must be the length of the meter set assembly plus 12 inches (see Dimension B in Figure 2). -- Only one guard post is required if the driveway does not extend past the meter set assembly. H If the meter set assembly is subject to vehicular damage from multiple directions and if the outer guard posts exceed 28 inches maximum spacing, additional guard posts shall be installed, evenly spaced, between them, and all posts shall be 12 inches minimum from the front of the meter. H Guard posts should be painted “caution” yellow, especially those located in commercial or industrial locations, street rights-of-way, and alleyways. NOTE: All guard post spacing distances are measured from the center of the guard post. 2-1/2I Dia steel pipes filled with concrete
42I Min abovegrade
6I Min
Building Wall
8
A
B
6I Min
24I 30I Concrete base with guard post
Driveway or parking area
TOP VIEW GUARD POST LOCATIONS
Figure 2 Residential meter guard post requirements
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
INSTALLING YOUR NATURAL GAS SERVICE
9
Minimum meter clearance requirements
Minimum clearances are measured from the regulator relief vent or the gas meter set assembly (Figure 3). The regulator relief vent exhausts natural gas safely into the atmosphere if the regulator on your meter fails to work properly. The diagrams and the measurements provided in Form 3885, Installation Requirements for Gas Meter Set Assemblies (provided in the back pocket of this handbook), show the required minimum distances between building features and the relief vent or the meter set assembly.
Regulator Meter Outlet Valve (Open)
Regulator
Typical Fuel Line Height 42I
Regulator Relief Vent
Regulator Relief Vent Typical Fuel Line Height 26I
Riser Shutoff Valve (Open)
250 Meter
Riser Shutoff Valve (Open)
425 Meter
Riser
Riser
Figure 3 Typical 250 or 425 in service residential gas meter set assembly
Improper electrical grounding
Natural gas risers, up to and including the meter set, should not be used as a grounding electrode. An electrical ground connection to a natural gas riser could result in a hazardous condition and can compromise PSE’s Corrosion Protection System.
Meter installation and turn-on The service line, riser, and gas meter can be installed once the customer has determined and marked the gas meter location with Form 1461, the gold Gas Meter Location sticker, or has stubbed out the fuel line. See previous section for guidance in selecting the appropriate meter location. Figure 4 shows the typical components for a new (inches water column delivery) gas meter set assembly installation. When PSE installs the gas meter assembly, the following components will be installed: H The riser shutoff valve will be locked in the closed (off) position. Removal of this lock or operation of this valve by unauthorized persons may damage this equipment and is prohibited.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
10 INSTALLING YOUR NATURAL GAS SERVICE
H An orange WARNING tag will be attached above the locked riser shutoff valve (see Figure 5). H The meter outlet valve will be in the closed (off) position (depending on gas load, the meter configuration may change). Before the gas meter can be turned on, the fuel line shall be inspected, approved, and connected to the gas meter (permit signed and approved by the local administrative authority). To arrange for the gas meter turn‐on, please call PSE at 1‐888‐225‐5773. Call by 3:00 PM for same day gas meter turn‐on for up to two meters. For facilities with more than two meters, call PSE to schedule the meter turn‐on. This applies on regular business days, subject to delays associated with major storms, earthquakes, supply interruptions, or other adverse events beyond PSE's control. PSE will turn on the gas meter and verify operation of new gas appliances.
Bypass Valve with Lock (Closed)
Meter Inlet Valve (Closed) Meter Outlet Valve (Closed)
Regulator Meter Outlet Valve (Closed)
Regulator
Regulator Relief Vent
Regulator Relief Vent Warning Tag & Seal (see Figure 5)
Warning Tag & Seal (see Figure 5)
425 Meter Universal Valve Lock
Universal Valve Lock Riser
Riser Shutoff Valve (Closed)
250 Meter Riser Shutoff Valve (Closed)
Riser
Figure 4 Typical new residential meter set assembly installation ready for equipment turn‐on.
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INSTALLING YOUR NATURAL GAS SERVICE
11
Figure 5 Orange WARNING tag
Trenching in the right‐of‐way PSE takes care of all work in the right‐of‐way including: H Apply for any necessary easements prior to installation. H Apply for necessary permits for the portion of the work done in the public right‐of‐way. H Make a request to locate existing underground utility locations through the Underground Utilities Location Center. You are responsible for locating some underground facilities on private property.
Customer‐provided trench and conduit If you wish to provide your own trench and/or natural gas service conduit on your own property there are specific requirements that you must follow. Contact CCS at 1‐888‐321‐7779 for further information.
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12 INSTALLING YOUR NATURAL GAS SERVICE
Flag and landlocked lots It is not always obvious, when looking at a lot, where the legal boundaries are or how a parcel of property is actually shaped (Figure 6). Often it becomes necessary to look through survey and assessor maps. It is important to tell PSE if you are requesting gas service to either a flag lot or landlocked lot. Knowing these details helps PSE do the required records research in advance and avoid delays in installing service.
CARVER AVE.
CARVER AVE.
ROBERTSON ST.
ROBERTSON ST.
Lot 2 Lot 1
Lot 7
What the Property Looks Like
Lot 5 Lot 6
Lot 3
Lot 4
Flag Lot
Landlocked Lot
Lot 8
Lot 9
Lot 10
What the Records Show
Figure 6 Typical flag and landlocked lots
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
PROGRAMS AND SERVICES OFFERED BY PUGET SOUND ENERGY
13
Chapter 4 Programs and Services Offered by Puget Sound Energy Energy Efficiency Programs PSE offers an array of energy efficiency programs to help reduce your home's energy consumption and save your family money. These programs range from cash rebates and home improvement suggestions, to energy use calculators that keep track of your monthly energy usage. The power to conserve and save is in your hands. Ask the Energy Advisors about the rebates that are available when you install energy‐efficient equipment. Call an Energy Advisor at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m., or visit our web site at PSE.com
Contractor Referral Servicet Puts you in touch with quality equipment and services
These days, consumers have many energy‐related choices for their homes or businesses. The questions are endless, from choosing heating and cooling systems to insulation, roofing, fireplaces, heat pumps, windows, or water heaters. Where should you turn for help? Now it's simple: PSE's Contractor Referral Service. PSE created the CRS to assist you in the decision‐making process of choosing energy‐efficient equipment and to help you in selecting prescreened independent contractors. Call to receive a copy of Form 3269, Contractor Referral Service Consumer and Business Guide, which includes tips on how to select energy‐related equipment and services. In addition, the Contractor Referral Service provides you with qualified contractor referrals to install and maintain the most appropriate energy‐efficient equipment for your needs. The Contractor Referral Service has prescreened independent contractors who have satisfied 15 eligibility criteria, including knowledge and experience, financial stability, certifications and bonding, and customer satisfaction. For more information about the Contractor Referral Service, contact an Energy Advisor at 1‐800‐562‐1482—Monday–Friday, 8 a.m.–5 p.m., or visit our web site at PSE.com
Gas heating system inspection for your furnace Puget Sound Energy recommends regular inspection and maintenance of your natural gas heating equipment. Many manufacturers recommend a thorough service of your natural gas heating equipment every year. With routine inspections, your natural gas heating equipment is more likely to operate safely and efficiently year‐round. For more details, contact an Energy Advisor at 1‐800‐562‐1482.
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PROGRAMS AND SERVICES OFFERED BY PUGET SOUND ENERGY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDICES
Appendices
Appendix A H PSE's Natural Gas Service Territory Map
Appendix B H Natural Gas Safety
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APPENDIX A: PSE'S NATURAL GAS SERVICE TERRITORY MAP
Appendix A PSE's Natural Gas Service Territory
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDIX B: NATURAL GAS SAFETY
17
Appendix B Natural Gas Safety What is natural gas? Natural gas is 96 percent methane, a natural compound formed as plants, trees, and other organic matter break down. While natural gas is combustible, it ignites only within a narrow range—between 4 and 14 percent gas‐in‐air mixture. In smaller or greater concentrations it will not burn. For this reason, natural gas is a more stable fuel source than propane or gasoline. The exhaust from a properly working natural gas appliance is essentially carbon dioxide and water vapor—the same substances released when we exhale. Natural gas is colorless and has no smell in its natural state. A harmles odorant (mercaptan) is added to create a distinct scent, so that it is easy to detect even the smallest natural gas leak. In addition, natural gas is 40 percent lighter than air. Unlike propane, which will tend to pool close to the ground, if natural gas escapes, it will rise and dissipate safely into the atmosphere.
Things to know about natural gas safety When using any energy source, it is wise to be aware of and follow certain precautions to keep yourself and those around you safe. Here are some of the things you should know to safely obtain gas service and use it safely once it has been established in your structure. Call before you dig!
Be sure to call to have all underground utilities located any time you plan to dig on your property. Washington state law requires that underground utilities be contacted before you begin any project that requires a hole or trench that is 12 inches or deeper. ONE‐CALL Center is a free service provided to prevent damage to underground utilities by excavation. Notification is required 2 business days in advance for utilities to be located. The ONE‐CALL Center can be reached by calling 1‐800‐424‐5555, via the web (click ITIC at callbeforeyoudig.org), or with a wireless or landline service phone number (users can call 811). NOTE: This is required even if you think you know there are no other utilities where you
intend to dig. What to do if you suspect a natural gas leak
The odorant added to the gas will enable you to detect even a small gas leak. However, using your nose is not the only way to detect a leak. Bubbles blowing in a puddle or a hissing sound also may indicate a natural gas leak. If you suspect a natural gas leak, follow these steps to ensure your safety and the safety of those around you: H Leave the building immediately and leave the door open on the way out. Do not use a telephone inside the affected building or do anything that might cause a spark. Do not light a match. Do not turn on a light switch. Do not attempt to put out flames if a gas leak ignites.
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APPENDIX B: NATURAL GAS SAFETY
H Use a neighbor's phone or find a pay phone and call PSE's Customer Service at 1‐888‐225‐5773. (If you must use your cellular phone be sure you are well away from the building.) H For emergencies, call 911.
When and how to shut off gas service When an emergency strikes, it is not always necessary to shut off your natural gas service. Knowing when and how to shut off natural gas service can save you from being without gas service needlessly. When to shut off your gas service
It is necessary to shut off your gas service at the service shutoff valve at the meter only when you hear or smell natural gas leaking. If you can't hear it or smell it there is no danger. How to shut off your gas service in an emergency situation
If there is an emergency situation and you need to shut off gas service at your meter, follow these three steps: Step
Action
1
Locate the gas service shutoff valve (usually the first fitting) on the natural gas supply pipe coming out of the ground near the meter.
2
Use a long‐handled wrench to turn the valve one‐quarter turn so that the lever is crosswise to the pipe.
3
Once the gas is off, leave it off. Call Puget Sound Energy to inspect the system, check, and relight appliances. Locating the Gas Service Shutoff Valve (Front View)
Shutoff Valve
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
APPENDIX B: NATURAL GAS SAFETY
Closing the Gas Shutoff Valve from the Open Position
19
Gas Shutoff Valve in Closed Position (Side View)
(Side View)
Shutoff Valve in Open Position Shutoff Valve in Closed Position
Turn clockwise 1/4 turn to close valve
NOTE: Contact PSE to open a closed shutoff valve.
In a nonemergency situation
If you need gas service to be shut off for a temporary, nonemergency situation, shut off service at the fuel‐line valve located near the particular appliance.
What is carbon monoxide? Carbon monoxide (CO) is an odorless, tasteless, and invisible gas which can build up when any fuel‐burning equipment—an automobile, fireplace, natural gas or oil furnace, wood stove, propane heater, charcoal grill, or kerosene heater—has insufficient air to burn the fuel completely. Carbon monoxide exposure can be dangerous. Safety precautions
Here are suggestions to guard against carbon monoxide exposure in any structure: H Use only fuel‐burning equipment inside the structure that is designed to operate indoors. Vented gas equipment must vent to the outside according to the manufacturer's specifications. H Make sure fuel‐burning equipment is maintained and operated safely and properly. H Never run an automobile engine, lawn mower, portable generator, or any combustion engine in an enclosed space. H Keep flues and chimneys free of debris and clear of soot buildup. H Consider the installation of a carbon monoxide detector, particularly near sleeping areas in a structure. Know the early symptoms of carbon monoxide poisoning
If you think someone is suffering from carbon monoxide poisoning, move the person outside to fresh air immediately and seek medical help. Early symptoms include: H Dizziness H Flu‐like symptoms H Weakness H Nausea and vomiting H Partial loss of muscular control H Drowsiness
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APPENDIX B: NATURAL GAS SAFETY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
GLOSSARY
21
Glossary
A9 valve - See Meter outlet valve. Appliance shutoff valve - A valve readily accessible and operable by the customer, located on the fuel line at or very near the appliance. H Open position - Valve handle is parallel with the line. H Closed position - Valve is crosswise or at a right angle to the fuel line. Approved - Acceptable to the authority having jurisdiction. Backfill - Earth or other material used to refill a trench. Also, the act of refilling a trench. British thermal unit (Btu) - Quantity of heat necessary to raise one pound of water one degree Fahrenheit at sea level pressure. The heating quality of the gas. Carbon dioxide (CO2 ) - A gas which is a product of combustion, resulting when carbon unites with sufficient oxygen to produce complete combustion. When natural gas burns completely, it produces carbon dioxide and water vapor, as well as heat. Carbon monoxide (CO) - A poisonous combustible gas produced by the incomplete combustion of carbon or reduction of carbon dioxide. Combustion - The process of burning, requiring three components: fuel, air, and ignition temperature. H Complete combustion - Results in carbon dioxide and water vapor; harmless. H Incomplete combustion - Can produce carbon monoxide and aldehydes; potentially hazardous. Conduit - A buried pipe in which the gas service line may be inserted. Conduit helps protect the gas line from damage and allows gas pipe to be replaced without excavating. Conduit is typically installed for road crossings and for service line installations. Department of Transportation (DOT) - The federal regulatory agency that governs gas pipeline safety, transportation of hazardous materials, and administers regulations related to highway rights-of-way. Easement - A document entitling its holder the right to use a specified parcel of property. Easements give Puget Sound Energy the right to install underground natural gas facilities on private property. Emergency - A situation in which there is an immediate threat to life or property. In the case of natural gas, an emergency is an immediate threat and/or the uncontrolled escape of gas. Excess flow valve - An excess flow valve (sometimes called an EFV) is a device installed in a natural gas piping system to limit the amount of natural gas that travels through the pipe in the event the pipe is severed downstream of the EFV. Flag lot - A parcel of property that does not connect directly to a public right-of-way (street) except for a narrow strip of land that touches the public street and is used to access the property. GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
22
GLOSSARY
Fuel line - Gas piping from the meter to the appliance that is owned and maintained by the customer. Ignition temperature of natural gas - Natural gas ignites at about 1,100 degrees Fahrenheit. Ignitor - Any device used to light gas. A spark ignitor uses an electric spark generated across an air gap for this purpose. Joint utility trench - Two or more utilities occupying a common trench. Landlocked lot - A parcel of property that does not connect directly to a public right-of-way (street) and must have an easement to cross another parcel of land to access the property. Load (Gas) - The connected load is calculated by totaling the Btu rating for all gas appliances connected to the meter. Main (Gas) - The distribution line (or pipe) that serves as a common source of supply for more than one service line. Owned and maintained by PSE. Mercaptan - An organic chemical odorant added to natural gas to give it a distinctive smell to alert customers in the case of leaks. Natural gas is odorless in its natural state. Mercaptan smells something like rotten eggs. Meter - A device for measuring and recording the volume of gas used. Meter outlet valve - A positive shutoff valve installed on most residential and small commercial meter set assemblies. The valve is located on the outlet of the meter and is connected to the fuel line. Methane gas (CH4 ) - A hydrocarbon gas that is the main component of natural gas (about 96 percent). It is colorless, odorless, and flammable and the same substance produced in some swamps, sewers, and landfills. MSA - Meter set assembly. Natural gas - A naturally occurring mixture of flammable hydrocarbon and nonhydrocarbon gases found in porous geologic formations beneath the earth’s surface; often in association with petroleum. It’s supplied as a fuel for millions of applications worldwide. The chemical composition is approximately 96 percent methane, 2 percent ethane, and 2 percent inert gases. Propane gas (C3 H8 ) - A colorless flammable gas found in petroleum and natural gas. It is odorized to make it easy to detect (smells sort of like garlic), heavier than air (specific gravity of 1.5), and has a 2544 Btu per cubic foot. (Natural gas contains about 1060 Btu per cubic foot.) Rate - Method of charging for energy usage (for therms used). Regulator (also Pressure regulator) - A device to lower the gas pressure. District regulators lower the pressure in mains, meter regulators lower pressure at the meter, and appliance regulators lower pressure at the appliance. Right-of-way - A collection of easements and/or permits allowing the holder to specific limited use of a parcel(s) of property (such as running a gas main through private properties or a dedicated area for use by the public for travel and utilities). This term refers to the land itself, not the right of passage over it. (See also: Easement). Riser - The portion of the service that terminates aboveground at the structure to support the meter.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
GLOSSARY
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Riser shutoff valve - A positive shutoff valve on all metering and/or service regulating facilities. The valve is located immediately upstream (on the service line side) of the meter set assembly. H Open position - Valve handle is parallel with the line. H Closed position - Valve is crosswise or at a right angle to the fuel line. Service - The pipe which carries gas from the main to the customer’s meter. Service shutoff valve - A convenient shutoff located outside of the customer’s building. If the meter is located outside of the building, the riser shutoff valve may also serve as the service shutoff valve. In some commercial service applications this valve may be buried and located in the right-of-way at the customer’s property line. Snow Country - Geographical locations in Cle Elum and west of Cle Elum in upper Kittitas County. Stub - A unit of property where gas pipe extends from the main in the right-of-way to the property line; or, if the main is in a 10-foot utility easement for joint trench construction or in any easement of defined dimensions, the stub is that portion of the service from the main to the field side edge of the easement; or, if the main is in an easement that covers the entire parcel or has no defined dimensions, the stub is the first 2 feet of the service. Therm - A therm of gas containing 100,000 Btu of energy and is roughly equivalent to 100 cubic feet of gas. Trench - An excavated ditch of specific depth and width into which underground utility lines are installed. Utility - Includes all wet and dry public or private utilities, including, but not limited to: electric, TV, cable, water/sewer, sprinkler system pipe, and building drains. Washington Utilities and Transportation Commission (WUTC) - The WUTC protects consumers by ensuring that utility and transportation services are fairly priced, available, reliable and safe. PSE may petition the Commission to add, change, or delete rules and increase or change rates. Customers may request the Commission to resolve a dispute with or a complaint against the Company.
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
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GLOSSARY
GAS SERVICE HANDBOOK / RESIDENTIAL CONVERSION TO NATURAL GAS
Notes
Notes
