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PowerlineEquipment
IdentificationPocket Guide
PowerlineEquipment
IdentificationPocket Guide
In Accordance with Public Resources Code 4292March 27, 2001
CDF/PG&E Fire Prevention Partnership
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This Powerline Equipment Identification Pocket Guide was prepared by:
Robert Loggins - PG&E VC Project Manager
This document is produced for the CDF/PG&E Fire Prevention Partnership.
This document may not be reproduced without written permission of the CDF and/or the
Partnership Project.
© March 2001
CDF/PG&E Partnership Project -Executive Committee
Andrea E. Tuttle - CDF Director John J Tennant - State Fire MarshalDave Driscoll - CDF Northern Region ChiefTim Turner - CDF Southern Region ChiefShan Bhattacharya - PG&E VP Engineering and PlanningJeff Butler - PG&E VP Operations, Maintenance and
ConstructionAlynn Delisle - PG&E Director Vegetation Management
Pacific Gas andElectric Company
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This Pocket Guide contains photographs of power line equipment used by Pacific Gas and Electric Company, Southern California Edison and other electric utilities of California. It is expected that all personnel who make condition inspections and surveys, inspections of power lines, or who prescribe hazard reduction work or other fire prevention measures will be familiar with the contents of this Guide.
This Pocket Guide is only to be used as a ready-reference tool for identifying power line equipment in the field. It isa companion to the complete Power Line Fire Prevention Field Guide, which also contains the statutes and minimum fire prevention standards necessary to minimize wildlandfires that may be caused by the operation and maintenance of electrical power lines. It is expected that all personnel using this Pocket Guide will first be thoroughly familiar with the contents of the Field Guide.
This guide was developed as a mutual undertaking by the California Department of Forestry and Fire Protection and the Pacific Gas and Electric Company. Its purpose is to provide information to the personnel of the fire service agencies and electrical operators for identification of power lines and power line equipment within the areas of their respective jurisdiction and franchise responsibilities.
This Pocket Guide is not to be used as a substitute for proper training, but as a reference tool for personnel already familiar with the subject.
Foreword
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Table of Contents
Table of Contents .................................... 1 Time by Location when Powerline
Hazard Reduction Standards are applicable ................................ 2
PRC 4292 Clearing Requirements.......... 3 PRC 4292 Exemptions............................. 4 Pole Clearing Example ............................ 5 Non-Exempt Pole Identification.............. 6 Non-Exempt Equipment .......................... 7 Exempt Equipment ................................ 25 Distribution Construction ..................... 51 Index ....................................................... 59
1
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Time of Year by Location when Powerline Hazard Reduction Standards are Applicable
MAY 1 - NOV 15
APR 15 - NOV 30
JAN 1 - DEC 31
2
PRC 4292-4293
14 CCR 1252-1253
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PRC 4292 Clearing Requirements
From 8 feet to Horizontal Plane of Highest Point of Conductor Attachment
Remove Dead, Diseased or Dying Limbs and Foliage from Living, Sound Trees and Dead, Diseased or Dying Trees
3
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4292 Exemptions
California Code of RegulationsTitle 14, Section 1255
Exemptions to Minimum Clearance Provisions - PRC 4292The minimum clearance provisions of PRC 4292 are not required
around poles and towers, including line junction, corner and dead endpoles and towers:
(a) Where all conductors are continuous over or through a pole ortower; or
(b) Where all conductors are not continuous over or through a poleor tower, provided, all conductors and subordinate equipmentare of the types listed below and are properly installed and usedfor the purpose for which they were designed andmanufactured;(1) Compression connectors.(2) Automatic connectors.(3) Parallel groove connectors.(4) Hot line tap or clamp connectors that were designed to
absorb any expansion or contraction by applying springtension on the main line or running conductor and tapconnector.
(5) Fargo GA 300 series piercing connectors designed andmanufactured for use with tree wire.
(6) Flat plate connectors installed with not less than twobolts.
(7) Tapered C-shaped member and wedge connectors.(8) Solid blade single-phase bypass switches and solid blade
single-phase disconnect switches associated with circuitreclosers, sectionalizers and line regulators.
(9) Equipment that is completely sealed and liquid filled.(10) Current limiting, non-expulsion fuses.
(c) On the following areas, if fire will not propagate thereon;(1) Fields planted to row crops.(2) Plowed or cultivated fields.(3) Producing vineyards that are plowed or cultivated.(4) Fields in nonflammable summer fallow.(5) Irrigated pasture land.(6) Orchards of fruit, nut or citrus trees that are plowed or
cultivated.(7) Christmas tree farms that are plowed or cultivated.(8) Swamp, marsh or bog land.
(d) Where vegetation is maintained less than 30.48 cm (12 inches)in height, is fire resistant, and is planted and maintained for thespecific purpose of preventing soil erosion and fire ignition.
4
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Pole Clearing Example
Before 4292 Clearing
After 4292 Clearing10 ft.
5
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Non-Exempt Pole Identification
Yellow Reflective Tag1.5” X 5.5”
Pacific Gas and Electric Company
Various Shape Tags –Indicate type of
clearing
Pole Number
6
EDISONSOUTHERN CALIFORNIA
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E
Non-ExemptEquipment
E
7
Subject to PRC 4292 clearance
requirements
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EUniversal Fuse8
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EOpen Link Fuse9
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EEnclosed Cutout
Universal Fuse
10
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ESolid Blade Disconnect
11
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ESolid Blade Disconnects
600 amp disconnect
4kV Bayonet
12
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EIn-LineDisconnect
13
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ELightningArrester
14
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E
Non-PorcelainLightningArrester 15
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ELightningArrester
16
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ELightningArrester 17
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EHot Tap Clamp18
Note: Som
e hot tap clamps are exem
pt. See page 42.
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ESplit Bolt Connector
19
Note: U
nder certain conditions, split bolts are exem
pt. See page 44.
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EFargoConnector
20
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ELM Connector21
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EGrasshopper Air Switch 22
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ETransmission Air Switch 23
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ETransmission Air Switch 24
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E
ExemptEquipment
E
25
Not subject to PRC 4292 clearance
requirements
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ENon-ExpulsionFuse 26
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ELiquid Filled Fuse 27
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ESMU-20 Fuse28
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ES&C Fault Tamer Fuse 29
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E600 Amp KPF Air Switch 30
Note: Exemption does not apply in
SDG&E’s Service Territory
E
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EUnderarmSidebreak Switch
31
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ES&C UnderarmSidebreak Switch
32
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ES&C Omni-Ruptor Switch 33
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ES&C Scada-Mate Switch 34
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ERecloser35
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ESectionalizer36
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EVoltageRegulator 37
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ECapacitor Bank38
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ETransformer39
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EParallel Groove Connector 40
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EParallel Groove Connectors 41
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EHot Tap Clamp42
Note: Som
e Hot Tap C
lamps are non-exem
pt. See page 18.
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EPiercing Tap Clamp 43
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EIdle Split Bolt Connectors 44
Note: Split bolts are O
NLY exem
pt when idle on the line.
See page 19 for non-exempt split bolts.
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EWedgeConnector 45
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ECompressionConnector 46
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EBolted Flat Plate Connector 47
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EAutomaticDeadend 48
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ELine Splices49
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EAutomaticSplices 50
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E
DistributionConstruction
51
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EVerticalConstruction 52
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ETriangularConstruction 53
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EAlley Arm Construction 54
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ECrossarmConstruction 55
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ECable Riser w/ Cable Terminator
Cable Terminator
Cable Riser
56
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E
AnimalProtection –Raptor Perch 57
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E
AnimalProtection –Squirrel Guard 58
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Index
Page 1
Table of Contents ................................................... 1 600 Amp KPF Air Switch ......................................30 Animal Protection............................................57, 58 Automatic Deadend ...............................................48 Automatic Splice ...................................................50 Bolted Flat Plate Connector ...................................47 Cable Riser............................................................56 Capacitor Bank......................................................38 Compression Connector.........................................46 Connectors
Bolted Flat Plate .............................................47 Compression...................................................46 Fargo..............................................................20 Hot Tap Clamp .........................................18, 42 LM .................................................................21 Parallel Groove..........................................40,41 Split Bolt ..................................................19, 44 Wedge ............................................................45
Construction Alley Arm ......................................................54 Crossarm ........................................................55 Triangular.......................................................53 Vertical...........................................................52
Deadend Automatic.......................................................48
Disconnect In-line.............................................................13 Solid Blade...............................................11, 12
Enclosed Cutout W/ Universal Fuse .......................10 Fargo Connector ....................................................20
59
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Index
Page 2
Fire Hazard Season………………………………….2 Fuses
Enclosed Cutout w/ Universal .........................10 Liquid Filled...................................................27 Non-Expulsion................................................26 Open Link ....................................................... 9 S&C Fault Tamer............................................29 SMU-20 .........................................................28 Universal ......................................................... 8
Grasshopper Air Switch.........................................22 Hot Tap Clamp (exempt) .......................................42 Hot Tap Clamp (non-exempt) ................................18 Idle Split Bolt Connector (exempt).........................44 In-Line Disconnect ................................................13 Lightning Arrester .................................. 14,15,16,17 Line Splice ............................................................49 Liquid-Filled Fuse .................................................27 LM Connector .......................................................21 Non-Exempt Pole Identification.............................. 6 Non-Expulsion Fuse ..............................................26 Open Link Fuse ...................................................... 9 PRC 4292 Clearing Requirements........................... 3 PRC 4292 Exemptions............................................ 4 Parallel Groove Connector ...............................40, 41 Piercing Tap Clamp...............................................43 Pole Clearing Example ........................................... 5 Recloser ................................................................35 S&C Fault Tamer Fuse ..........................................29 S&C Omni-Ruptor Switch .....................................33 S&C Scada-Mate Switch .......................................34 S&C Underarm Sidebreak Switch ..........................32
60
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Index61
Page 3
Sectionalizer..........................................................36 SMU-20 Fuse ........................................................28 Solid Blade Disconnect....................................11, 12 Splices
Automatic.......................................................50 Line................................................................49
Split Bolt Connector (non-exempt).........................19 Split Bolt Connector (exempt)................................44 Switches
Grasshopper....................................................22 KPF Air..........................................................30 S&C Omni-Ruptor..........................................33 S&C Scada-Mate ............................................34 Transmission ............................................23, 24 Underarm Sidebreak .......................................32
Transformer...........................................................39 Transmission Air Switch..................................23, 24 Underarm Sidebreak Switch...................................31 Universal Fuse........................................................ 8 Voltage Regulator..................................................37 Wedge Connector ..................................................45