1 June 2014 Electric Service Handbook Single Family Residential Projects Permanent & Temporary Service
2 2014 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 EST-07W Bellevue, WA
3 TABLE OF CONTENTS i Table of Contents Preface What this handbook contains... PSE s service availability... Glossary of terms used in this handbook... Codes, permits, and inspections... Electrical service equipment inspection... Reconnecting existing electric service after repair or replacement... Scheduling/Timelines... Underground or overhead service?... Which type of electrical system is available in your area?... Underground service... Overhead service... Questions or assistance... Other electric service information... How to contact Puget Sound Energy... PSE s service providers... Overview: New Permanent and Temporary Electric Service Hookup to Existing PSE Power Facilities for Single-Family Residential Projects... vii vii vii vii viii viii viii viii viii ix ix ix x x x xi Chapter 1: Steps to a Successful Permanent Electric Service Installation for Single-Family Residences Definitions... 1 Service installation responsibilities... 1 Puget Sound Energy... 1 Customer... 1 Starting the installation process... 2 Setting up an account or to order a new service... 2 Will your project need engineering?... 2 Choosing the right service size... 3 Service voltages... 3 Service sizes... 3 Sizes less than 200 A... 3 Determining an approved meter location... 3 Customer-installed meter base/socket location... 3 Know what s below: Call 811 before you dig... 4 Coordinating utility trenching and construction... 5 Continued on next page
4 ii TABLE OF CONTENTS Transformer locations... 5 Liquefied propane tanks: clearances from ignition source... 8 Outbuildings... 9 Service line installation responsibilities for outbuildings... 9 Cost for service Power quality, voltage flicker Chapter 2: Permanent Underground Service Steps to a successful underground service installation Selecting a meter base/socket location Multiple metered services Service line trenches Trench and backfill requirements Customer-installed service line conduit Customer-installed service line conduit installation requirements Continuous and discontinuous conduit systems When to choose continuous conduit When to choose discontinuous conduit Service entrance equipment Installation requirements Service entrance conduit size Permanent underground service for manufactured homes, A Service equipment installation Meter base/socket requirements Remote metering (meter loop) for underground residential services What is remote metering? Requirements for residential remote metering, 200 A or less A and larger panels Remote services greater than 800 A Meter post and pedestal locations Chapter 3: Permanent Overhead Service Steps to a successful overhead service installation Selecting a meter base/socket location Clearance requirements Service line ground clearance Minimum clearances from structures, building openings, and gas meters Intermediate service pole Service mast Service mast requirements Height requirements Additional mast supports (guy or brace) Screw-in service knobs Service entrance equipment installation requirements... 29
5 TABLE OF CONTENTS iii Manufactured homes Meter base/socket installation requirements for manufactured homes Customer-owned meter pole Meter pole requirements Installation requirements Chapter 4: Primary Line Extensions Customer responsibility Inspection/Coordination Site preparation Customer-provided trench Trench width Trench excavating requirements Trench and backfill requirements for primary electric line extension trenches (no gas).. 35 Trench and backfill requirements for primary electric line extension trenches (with gas). 36 Vaults Vault excavation procedure Vault location and access Vault backfill material Continuous conduit systems Customer-supplied conduits Terminating conduit at transformer Chapter 5: Meter Installation Service rating options Responsibilities Puget Sound Energy Customer Meter bases/sockets General requirements Meter base/socket location Grounding requirements Clearance requirements for meter installations A services Single-family residential Underground Overhead Outbuildings (overhead or underground service) A services Underground Overhead Outbuildings (overhead or underground service) A current transformer (CT) services Services over 400 A... 49
6 iv TABLE OF CONTENTS Chapter 6: Temporary Services What this chapter contains Definition Obtaining your temporary service from existing power facilities Scheduling Customer charge for service Temporary meter base/socket requirements Temporary underground services Meter location Trenching and excavation requirements Underground temporary service installation process Temporary overhead services Meter location Service line path requirements Clearance requirements Overhead temporary service installation process Chapter 7: Disconnection and Modification of Service Disconnection of your meter Modified services Glossary List of Tables Table 1 Types of electric services... x Table 2 Standard voltages for residential customers... 3 Table 3 Service sizes available from PSE... 3 Table 4 Color codes for locating utilities... 4 Table 5 Clearances for padmount transformers... 5 Table 6 Service line installation responsibilities... 9 Table 7 Current transformer (CT) enclosure dimensions (minimum) Table 8 Example of overhead and underground modified service... 60
7 TABLE OF CONTENTS v List of Figures Figure 1 Underground facilities... ix Figure 2 Overhead facilities... ix Figure 3 Clearances for transformers... 6 Figure 4 Clearances for transformers from structures... 7 Figure 5 Minimum clearances from oil-filled equipment to LP, hazardous liquid, or fuel tanks. 8 Figure 6 Minimum clearances from LP storage tanks to sources of ignition... 9 Figure 7 Typical underground service from overhead power facilities Figure 8 Example of continuous conduit in underground electric service Figure 9 Example of discontinuous conduit in underground electric service Figure 10 Two types of meter bases/sockets for permanent underground service Figure A service entrance equipment Figure 12 Permanent underground service for manufactured homes, A Figure 13 Remote metering for underground residential services Figure 14 Typical overhead service installation Figure 15 Minimum overhead service line vertical clearances from ground level Figure 16 Minimum clearances over other structures Figure 17 Intermediate service pole location Figure 18 Unguyed service masts Figure 19 Guyed service masts Figure 20 Permanent overhead meter pole installation Figure 21 Typical joint utility trench with primary voltage cable on your private property Figure 22 Padmount transformer vault excavation Figure 23 Aboveground junction box vault excavation Figure 24 Location of customer conduit in PSE vaults Figure 25 Meter base/socket minimum clearances Figure 26 Recessed meter installation clearances Figure 27 Residential meter socket wiring diagrams Figure 28 Typical arrangement of service conductors for underground class 320 meter base/socket Figure 29 Typical arrangement of service conductors for overhead class 320 meter base/socket. 47 Figure 30 Instrument-rated (CT) meter bases/sockets Figure 31 Single-phase CT mounting base Figure 32 Trenching requirements for power stubout Figure 33 Temporary underground service installation Figure 34 Minimum clearance requirements upon installation Figure 35 Temporary overhead service installation Back pocket Joint Utility Mainline Trench Excavation Requirements handout Electric Underground Service Installation Requirements handout
8 vi TABLE OF CONTENTS
9 PREFACE vii Preface This handbook is your guide to Puget Sound Energy s (PSE) requirements for new, altered/modified, or temporary electric service for permanent single-family residential structures. We have also included additional requirements for electric service to outbuildings (barns, shops, pump houses, garages, etc.). What this handbook contains PSE s service availability In this handbook you will find answers to questions such as: What are the installation requirements for permanent and temporary underground and overhead service? How do I choose the right service size? What are the trenching requirements? How do I locate existing underground utilities before I dig? General boundaries for PSE s gas and electric service area are available on PSE.com\customerconstruction. A Customer Construction Services (CCS) Representative can help you to determine the closest available service line 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 pole). Codes, permits, and inspections This handbook should only be used as a guide. It does not cover all possible federal, state, or local code requirements. It is your responsibility to ensure that your project complies with the most recent issue of the National Electric Code (NEC) and any other federal, state, or local codes that may apply. This handbook shall not be interpreted to conflict with the regulations of the state of Washington or other regulatory bodies having jurisdiction. PSE s metering requirements may be more stringent. Local codes and requirements related to the planned work should be addressed before any construction begins.
10 viii PREFACE Electrical service equipment inspection Once your service equipment is installed, the state of Washington, or the city with jurisdiction over your area, requires that your installation pass an electrical inspection before PSE can energize your system. NOTE: It is your responsibility to request an electrical inspection. Electrical inspections for most areas in the PSE service territory are done by the Washington State Department of Labor and Industries. However, electrical inspections are performed by city personnel in several jurisdictions. Please consult PSE.com\PermitsandInspections for a list of the cities and current contact information. Reconnecting existing electric service after repair or replacement All electrical equipment and wiring on the customer side of the meter (including meter base and service masts) are owned and maintained by the customer. Therefore, you are responsible for any repair or replacement of storm-damaged or failed metering equipment. If you must repair/replace equipment of this kind, your service may need to be de-energized or disconnected. For more information, refer to Chapter 7, Disconnection and Modification of Service section of this handbook or contact your CCS Representative at Scheduling/Timelines The time needed for engineering, scheduling, and construction of the work will vary depending upon the complexity of the job, possible right-of-way permits, easements, and the volume of work requested by PSE customers. Contact your CCS Representative at for current construction scheduling. Underground or overhead service? The two types of permanent services are: underground and overhead. Which type of electrical system is available in your area? You can determine if PSE s system is underground or overhead by checking for our facilities along your road. If the power system is underground, you ll see facilities like those in Figure 1. If the power system is overhead, a series of poles similar to Figure 2 will be visible. Use Table 1 to help you determine which type of electrical service can be provided. For help determining which type of system is in your area, call your CCS Representative at If none of the items in Figures 1 or 2 exist in your area, or if you have questions, call and a CCS Representative will be glad to assist you.
11 PREFACE ix Underground service If your area is served underground, one or more underground facilities should be visible (see Figure 1). Please request a permanent underground service (Chapter 2). ÎÎÎÎÎ ÎÎÎÎÎ Detail ÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑ ÂÂÂÂÂÂÂÂ ÑÑÑÑÑÑÑÑÑÑ ÂÂÂÂÂÂÂÂ ÑÑÑÑÑÑÑÑÑÑ ÂÂÂÂÂÂÂÂ ÑÑÑÑÑÑÑÑÑÑ ÂÂÂÂÂÂÂÂ ÑÑÑÑÑÑÑÑÑÑ ÂÂÂÂÂÂÂÂ STUBOUT PEDESTAL HANDHOLE Figure 1 Underground facilities PADMOUNT TRANSFORMER Overhead service If the power system in your area is overhead, poles should be visible (see Figure 2). Please request a permanent overhead service (Chapter 3). Transformer Pole ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ Figure 2 Overhead facilities Questions or assistance If none of the items in Figures 1 or 2 exist in your area, or if you have questions, call and a CCS Representative will be glad to assist you.
12 x PREFACE If available electrical system is... Underground Overhead Overhead Table 1 Types of electric services And if... Your new meter location is less than 225 ft from our nearest padmount transformer (see Figure 1). NOTE: If your new meter location is more than 225 ft from our nearest underground transformer, an additional transformer may be required. The new meter location is less than 200 ft from our nearest power pole. The service originates from the pole. The pole has a transformer on it (see Figure 2). The new meter location is less than 125 ft from our nearest power pole. The pole has a transformer on it (see Figure 2). Your service line does not cross anyone else s property. Then your service line will be... Underground Underground Overhead or Underground NOTE: If your situation does not fit the criteria presented, please contact your CCS Representative. Other electric service information If you need information on the installation of permanent or temporary multifamily and nonresidential services you will find it in the PSE Electric Service Handbook for Commercial/Industrial and Multifamily Projects. All handbooks are available free of charge from PSE. How to contact Puget Sound Energy You can obtain further information by contacting us through the following: PSE Customer Construction Services (CCS) at Monday thru Friday, 7 a.m. 5 p.m. PSE.com/CustomerConstruction If you have questions on Energy Efficiency Programs, please call: PSE Energy Advisors at Monday thru Friday, 8 a.m. 5 p.m. If you have an emergency, service delivery, or general billing question regarding your account, please call: Customer Service at ; TTY 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 InfraSource Construction LLC. The project manager and the employees who install your service may work for these service providers on PSE s behalf.
13 PREFACE xi Overview: New Permanent and Temporary Electric Service Hookup to Existing PSE Power Facilities for Single Family Residential Projects This information applies only if PSE has existing power facilities in your area. If electric power is not readily available, please contact CUSTOMER CONSTRUCTION SERVICES or PSE.com/CustomerConstruction Customer Responsibilities: Determine if you need overhead or underground service. Call PSE to set up an account and submit an order. Allow adequate time for possible engineering, right-of-way permits, and easement review. Obtain an electrical work permit. If temporary service, install temporary service facility and meter base. If permanent service, determine the service size amp rating you want (200, 320, or 400 A). Determine an approved permanent meter location. Ensure that existing underground utilities are located before you dig. Call 811 two business days prior to digging for a free service that will mark the location of underground lines. Prepare job site by providing a clear path/trench for your service line for proper vault entrance requirements per PSE standards. Obtain an approved electrical inspection. After the electrical inspection has been completed and approved, request PSE to install and energize your system. Puget Sound Energy s Responsibilities: Connect temporary service. Determine if engineering is required. Install your overhead or underground permanent service line conductors. Install your meter and energize your system. Scheduling/Time Frame: If engineering is not required, services are typically installed and energized 3 to 5 days after you have passed your inspection. Engineering, right-of-way permits, etc., can extend time frames an estimated 2 to 4 weeks. Permanent and Temporary Service Charge: Charges vary due to the type of service you request and the type of system we have in your area. Contact your Customer Construction Services Representative for current rate information.
14 xii PREFACE
15 PERMANENT ELECTRIC SERVICE INSTALLATION 1 Chapter 1 Steps to a Successful Permanent Electric Service Installation for Single-Family Residences Definitions PSE defines a single-family residence as a structure that is: Located on a legal residential lot. Approved for occupancy as a permanent single-family residence by the local governing agency or agencies. A parcel where the lot line is extended to the public thoroughfare, even if the unit(s) shares a common wall(s) with other like living units, such as in zero-lot-line construction. A mobile or manufactured home will be considered a single-family residence if it meets the above requirements, and: Is permanently located on a foundation. Has had the axles and wheels removed. Meets all other requirements for a mobile home permit as required by the local governing agency or agencies. NOTE: A mobile or manufactured home located in a mobile home park does not qualify as a single-family residence. Service installation responsibilities Installing new electrical service to your single-family residence is a joint project between you and PSE. Puget Sound Energy Customer PSE is responsible for: Installing the service line conductors to a customer-installed and maintained service mast or underground meter service riser. Installing the meter in a customer-installed and maintained meter base/socket. Energizing your system. You are responsible for: Determining if you need overhead or underground service. Setting up an account and submitting an Application for Service. Obtaining an electrical work permit. Determining the service size amp rating you want. Determining an approved meter location. Continued on next page CHAPTER 1
16 2 PERMANENT ELECTRIC SERVICE INSTALLATION Providing site preparation and installation requirements according to PSE installation standards in Gas and Electric Underground Service Installation Requirements handout located in the back pocket of this handbook. Before any digging project, calling the 811 Call Before You Dig hotline two business days before digging. Installing the meter base/socket on the outside wall in an approved location. Installing all the electrical wiring inside your residence. Obtaining a city or state inspection and approval of your installation. After your electrical inspection is complete, calling PSE to request that your service be installed and energized. Keeping your meter base/socket accessible to PSE. Starting the installation process Setting up an account or to order a new service Will your project need engineering? You may establish your billing account when you are ready to initiate your temporary service order, order your permanent service, or after the state electrical inspection is complete and your trench is ready (if applicable). To establish an account with PSE, call CCS at The CCS Representative will ask for your billing information and the address for new service. (New addresses are obtained from the U.S. Postal Service or the County Addressing Department.) To order a new service, submit an Electric Service Application Single-Family Residential 100E to your CCS Representative. All forms can be downloaded from PSE.com\customerconstruction. A CCS Representative will ask you the following questions to help determine how your project is handled: What kind of residential building is this service for (home, barn, shop, etc.)? What is the building s square footage? What kind of electrical or gas appliances will you have (furnace, heat pump, air conditioning, water heater, etc.)? What size service panel will you be installing? When will you be ready for service? Do you need underground or overhead service? Is the PSE utility connection point adjacent to your property or across the street? NOTE: If a transformer or electrical service stubout is located on your property, your project probably will not require engineering. If no transformer or stubout is available, your project will require engineering, and our CCS Representative will ask you to complete and submit an Electric Service Application Single-Family Residential 100E. This form can be downloaded at PSE.com\customerconstruction. CHAPTER 1
17 PERMANENT ELECTRIC SERVICE INSTALLATION 3 Choosing the right service size Service voltages PSE offers their customers the voltages shown in Table 2. Table 2 Standard voltages for residential customers Service Type Voltage Single-phase 120/240 V, 3-wire * Three-phase 120/208 V, 4-wire 277/480 V, 4-wire *Available for loads to a maximum demand of 100 kw. Larger loads may be served, if determined feasible by a PSE engineer. All motors must be rated 7-1/2 HP or less. Service sizes PSE offers several service sizes for single-family residential structures and for outbuildings. The service size you need depends on both the size of your home and the power requirements of the equipment you will be installing in it. Table 3 explains the sizes that are available. Table 3 Service sizes available from PSE Voltage Ampere Rating Typical Use 120/ A Small and medium sized homes (most common size services) 320 or 400 A Large homes Over 400 A Very large homes Sizes less than 200 A You may install a service panel or meter base/socket that is sized less than 200 A, but the service line and meter that PSE installs will be sized as if you were installing a 200 A service. If you are installing an underground service that is less than 200 A, your meter base/socket must meet the dimensional requirements for a 200 A underground meter base/socket, refer to Chapter 5, Meter Installation, located in this handbook. Determining an approved meter location NOTE: Only authorized and qualified PSE personnel shall install and remove meters. Customer-installed meter base/socket location You are required to install your meter base/socket in a place that is accessible to PSE. All locations are subject to approval by a PSE Representative. If you have questions regarding meter locations, call your CCS Representative at Continued on next page CHAPTER 1
18 4 PERMANENT ELECTRIC SERVICE INSTALLATION Meter base/sockets, including current transformer (CT) enclosures, must be located: Outside. On the front 1/3 of your home closest to normal public access. In an area that is not subject to being fenced-in (patios, decks, porches, breezeways and backyards are bad locations). On a structure that is owned by you. These approved locations allow us to: Read your meter in a cost-effective manner. Maintain your meter efficiently. Disconnect your service if there is a fire. NOTE: Refer to Gas and Electric Underground Service Installation Requirements handout for more information. Know what s below: Call 811 before you dig Before any digging project, call 811 two business days prior to digging for a free service that will mark the location of underground lines. It s free and it s the law. The Call Before You Dig law requires anyone digging into the ground to call and have underground utilities located to avoid potential hazards with striking or digging up utility lines. The locate service uses the following color codes to identify underground utilities: Table 4 Color codes for locating utilities Color White Pink Red Yellow Orange Blue Purple Green Utility Proposed excavation Temporary survey markings Electric power lines, cables, conduit, and lighting cables Gas, oil, steam, petroleum, or gaseous materials Communication, alarm or signal lines, cables, or conduit Potable water Reclaimed water, irrigation, and slurry lines Sewers and drain lines NOTE: Use white paint to mark the area within which you want utility locations. Once all utilities are located: Do not dig with machinery closer than 24 inches from the locate marks. Hand dig to expose all utilities to be crossed. CHAPTER 1
19 PERMANENT ELECTRIC SERVICE INSTALLATION 5 Coordinating utility trenching and construction New construction typically involves the installation of telephone cables, cable television cables, and natural gas lines; as well as electric power cables. It is the responsibility of you and your builder to notify each utility about your intended electric service installation as well as all other utilities providing service to your new structure. Transformer locations PSE will install padmount transformers using the clearances listed in Table 5 and shown in Figures 3 through 6. Clearances between padmount transformers and structures must be measured from the metal portion of the transformer closest to the building or structure (including any overhangs). Table 5 Clearances for padmount transformers Feature Combustible walls or roof (including stucco). Noncombustible walls (including brick, concrete, steel, and stone), provided the side of the transformer facing the wall does not have doors. Materials that pass UBC Standard 2-1 or ASTM E are considered to be noncombustible. Clearance distance 10 feet (3 feet from a combustible wall if using a reduced flammability transformer). See Figure 4. 3 feet. See Figure 4. Fire sprinkler valves, standpipes, and fire hydrants. 6 feet. See Figure 3. Doors, windows, vents, fire escapes, and other building openings. 10 feet. See Figure 3. The water s edge of a swimming pool or any body of water. 15 feet. See Figure 3. Individual domestic and irrigation wells. 100 feet. See Figure 3. Facilities used to dispense or store LP or hazardous liquids or fuels. 20 feet. See Figure feet. See Figure 5. Gas service meter relief vents. 3 feet. See Figure 3. CHAPTER 1
20 6 PERMANENT ELECTRIC SERVICE INSTALLATION Well Head ÑÑÑÑÑ ÑÑÑÑÑ Pools or bodies of water Transformer ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Door, Window, Vent, or Other Opening 10 Fuel Tank Gas Meter Relief Vent 3 Transformer Sprinkler Valve, Standpipe, or Hydrant 6 ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Figure 3 Clearances for transformers Fire Escape CHAPTER 1
21 PERMANENT ELECTRIC SERVICE INSTALLATION 7 ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ Approved Transformer ÉÉÉÉÉ Area ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ ÉÉÉÉÉ TRANSFORMER CLEARANCES FROM COMBUSTIBLE SURFACES Combustible building walls and roof. ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ 3 ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ Approved 10 ÉÉÉÉÉÉÉÉÉ Transformer Area ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ 3 ÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉ Combustible building walls and roof. REDUCED FLAMMABILITY TRANSFORMER CLEARANCES FROM COMBUSTIBLE SURFACES ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ 3 3 ÉÉÉÉÉÉ ÉÉÉÉÉÉ Approved ÉÉÉÉÉÉ Transformer Area ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ ÉÉÉÉÉÉ Noncombustible roof and soffit 3 Noncombustible building walls TRANSFORMER CLEARANCES FROM NONCOMBUSTIBLE SURFACES ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ 10 ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ 10 ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ Approved ÉÉÉÉÉÉÉÉ Transformer Area ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ Combustible roof or soffit 3 Noncombustible building walls TRANSFORMER CLEARANCES FROM NONCOMBUSTIBLE WALLS WITH COMBUSTIBLE ROOFING Figure 4 Clearances for transformers from structures CHAPTER 1
22 8 PERMANENT ELECTRIC SERVICE INSTALLATION 6 Min 20 Min Oil Filled Electrical Equipment (Pad or Pole Mounted) LP Tank LP Tank 10 Min ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ Oil Filled Electrical Equipment (Pad or Pole Mounted) Dike of adequate height to contain oil and not allow it to flow towards the LP tank. Top View Figure 5 Minimum clearances from oil-filled equipment to LP, hazardous liquid, or fuel tanks Liquefied propane tanks: clearances from ignition source If there are liquefied propane (LP), hazardous liquid, or fuel tanks on your property, the following minimum clearances apply from PSE s padmounted transformer or the ignition source (see Figures 5 and 6). All LP tanks must be at least 6 feet from a vertical plane extending down from an overhead primary voltage line. Consumer storage LP tanks must be at least 5 feet from any source of ignition, such as electric meter bases, submersible transformers, secondary handholes or pedestals, or padmount switches. The fill connection, gauge connection, or vent on the LP tank must be at least 10 feet from any source of ignition. CHAPTER 1
23 PERMANENT ELECTRIC SERVICE INSTALLATION 9 Primary Voltage Power Line Gauge, Vent, or Fill Connections Electric Meter Base or Switch 6 Min 10 Min 5 Min LP GAS 5 Min ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ Submersible Transformer, Handhole, Switch, or Pedestal Figure 6 Minimum clearances from LP storage tanks to sources of ignition Outbuildings An outbuilding is a stand-alone structure which is located on residential property and is not a living space. Typical outbuildings are barns, pump houses, garages, shops, and storage sheds. Service line installation responsibilities for outbuildings An underground service line to an outbuilding is installed by the customer or PSE, depending upon the intended use of the outbuilding (see Table 6). If you want PSE to install a separate service to your outbuilding, refer to the Service Installation Responsibilities section at the beginning of this chapter. Table 6 Service line installation responsibilities If the primary use of Outbuilding is for... Commercial purposes or a pump house for a multifamily/community well serving more than 2 households. General residential (garages, shops, small barns and well pump houses serving up to 2 households). Service line will be installed and maintained by... Customer Puget Sound Energy NOTE: Installation costs and billing rates are different for the each type of primary use of outbuildings. Contact your CCS Representative at for more information. CHAPTER 1
June 2016 Electric Service Handbook Single Family Residential Projects Permanent & Temporary Service 2016 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or transmitted
June 2014 Electric Service Handbook Commercial/Industrial and Multifamily Projects Permanent & Temporary Service 2014 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or
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This form should be completed if you are applying to have new electric facilities installed on your property for the purpose of providing electric service to a commercial entity. PROJECT CHECKLIST Below
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PLEASE NOTE This document, prepared by the Legislative Counsel Office, is an office consolidation of this regulation, current to August 1, 2013. It is intended for information and reference purposes only.
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Mobile Home Pre-Inspection Checklist TWO (2) STEP INSPECTION PROCESS STEP ONE: CALL FOR THE FIRST INSPECTION WHEN THESE ITEMS ARE COMPLETE. 1. Septic tank installed and plumbing complete. (SEE PLUMBING
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New Service GUIDE NEW SERVICE GUIDE new construction departments... If you re building a new home or performing any construction that requires a change to your existing electric or gas service, it s important
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Page 99 of 137 Requirements for the Attachment of Communication Cable Facilities on Replaces: URS-3002 URS-3004 URS-101C-304 A-157649 Page 100 of 137 Reference Notes for Drawings: General 1. The term communication
This document is an uncontrolled copy and may not be the most current copy. The most current copy is available at www.atcoelectric.com. This document is the property of ATCO Electric and may be updated
Fire Pump Plan Review March 2010 Date of Review: / / Permit Number: Business/Building Name: Address of Project: Designer Name: Designer s Phone: Contractor: Contractor s Phone: Occupancy Classification:
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March 2015 GAS SERVICE HANDBOOK Commercial/Industrial & Multifamily Developments Form No. 2772 (Rev. 15) E 2015 by Puget Sound Energy All rights reserved. No part of this book may be reproduced or transmitted
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