grounding installation details
TRANSCRIPT
January 2002
Process Industry PracticesElectrical
PIP ELIGD000Grounding Installation Details
PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES
In an effort to minimize the cost of process industry facilities, this Practice hasbeen prepared from the technical requirements in the existing standards of majorindustrial users, contractors, or standards organizations. By harmonizing thesetechnical requirements into a single set of Practices, administrative, application, andengineering costs to both the purchaser and the manufacturer should be reduced. Whilethis Practice is expected to incorporate the majority of requirements of most users,individual applications may involve requirements that will be appended to and takeprecedence over this Practice. Determinations concerning fitness for purpose andparticular matters or application of the Practice to particular project or engineeringsituations should not be made solely on information contained in these materials. Theuse of trade names from time to time should not be viewed as an expression ofpreference but rather recognized as normal usage in the trade. Other brands having thesame specifications are equally correct and may be substituted for those named. AllPractices or guidelines are intended to be consistent with applicable laws andregulations including OSHA requirements. To the extent these Practices or guidelinesshould conflict with OSHA or other applicable laws or regulations, such laws orregulations must be followed. Consult an appropriate professional before applying oracting on any material contained in or suggested by the Practice.
This Practice is subject to revision at any time by the responsible Function Team andwill be reviewed every 5 years. This Practice will be revised, reaffirmed, or withdrawn.Information on whether this Practice has been revised may be found at www.pip.org.
© Process Industry Practices (PIP), Construction Industry Institute, TheUniversity of Texas at Austin, 3925 West Braker Lane (R4500), Austin,Texas 78759. PIP member companies and subscribers may copy this Practicefor their internal use. Changes, overlays, addenda, or modifications of anykind are not permitted within any PIP Practice without the express writtenauthorization of PIP.
PIP will not consider requests for interpretations (inquiries) for this Practice.
Not printed with State funds
January 2002
Process Industry Practices Page 1 of 6
Process Industry PracticesElectrical
PIP ELIGD000Grounding Installation Details
Table of Contents
1. Introduction..................................51.1 Purpose ............................................. 51.2 Scope................................................. 5
2. References ...................................52.1 Industry Codes and Standards .......... 5
3. General Information.....................53.1 Category Index................................... 53.2 User Guidance................................... 6
List of DetailsELIGD082 – Building Column - Bolted
Compression Connection to ColumnWeb
ELIGD083 – Building Column - BoltedCompression Connection to ColumnFlange
ELIGD084 – Building Column-Welded Taband Bolted Compression Connection
ELIGD086 – Grounding Pad Set inConcrete
ELIGD101 – Structural Column - CrimpedConnection #2 AWG GroundConnection with Protective Sleeve
ELIGD102 – Structural Column - CrimpedConnection #2 AWG GroundConnection without Protective Sleeve
ELIGD103 – Structural Column - CrimpedConnection #2/0 AWG GroundConnection with Protective Sleeve
ELIGD104 – Structural Column - CrimpedConnection #2/0 AWG GroundConnection without Protective Sleeve
ELIGD113 – Structural Column - BoltedCompression Connection #2 AWGGround Connection with ProtectiveSleeve
ELIGD114 – Structural Column - BoltedCompression Connection #2 AWGGround Connection without ProtectiveSleeve
ELIGD115 – Structural Column - BoltedCompression Connection #2/0 AWGGround Connection with ProtectiveSleeve
ELIGD116 – Structural Column - BoltedCompression Connection #2/0 AWGGround Connection without ProtectiveSleeve
ELIGD117 – Fire Proofed StructuralColumn - Bolted CompressionConnection #2 AWG GroundConnection with Protective Sleeve
PIP ELIGD000Grounding Installation Details January 2002
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ELIGD118 – Fire Proofed StructuralColumn - Bolted CompressionConnection #2 AWG GroundConnection without Protective Sleeve
ELIGD119 – Fire Proofed StructuralColumn - Bolted CompressionConnection #2/0 AWG GroundConnection with Protective Sleeve
ELIGD120 – Fire Proofed StructuralColumn - Bolted CompressionConnection #2/0 AWG GroundConnection without Protective Sleeve
ELIGD202 – Metallic Cable Tray Bonding -Bonding of Channel to Tray by Cable
ELIGD206 – Metallic Cable Tray Bonding -Bonding of Cable Tray by Cable
ELIGD210 – Metallic Cable Tray Bonding -1/2" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD211 – Metallic Cable Tray Bonding -3/4" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD212 – Metallic Cable Tray Bonding -1" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD213 – Metallic Cable Tray Bonding -1-1/4" Conduit Bonded to Cable Trayby Conduit Clamp
ELIGD214 – Metallic Cable Tray Bonding -1-1/2" Conduit Bonded to Cable Trayby Conduit Clamp
ELIGD215 – Metallic Cable Tray Bonding -2" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD216 – Metallic Cable Tray Bonding -2-1/2" Conduit Bonded to Cable Trayby Conduit Clamp
ELIGD217 – Metallic Cable Tray Bonding -3" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD218 – Metallic Cable Tray Bonding -4" Conduit Bonded to Cable Tray byConduit Clamp
ELIGD219 – Cable Tray Bonding - Bondingof 1/2" Conduit with GroundingBushing to Cable Tray or Channel byCable
ELIGD220 – Cable Tray Bonding - Bondingof 3/4" Conduit with GroundingBushing to Cable Tray or Channel byCable
ELIGD221 – Cable Tray Bonding - Bondingof 1" Conduit with Grounding Bushingto Cable Tray or Channel by Cable
ELIGD222 – Cable Tray Bonding - Bondingof 1-1/4" Conduit with GroundingBushing to Cable Tray or Channel byCable
ELIGD223 – Cable Tray Bonding - Bondingof 1-1/2" Conduit with GroundingBushing to Cable Tray or Channel byCable
ELIGD224 – Cable Tray Bonding - Bondingof 2" Conduit with Grounding Bushingto Cable Tray or Channel by Cable
ELIGD225 – Cable Tray Bonding - Bondingof 2-1/2" Conduit with GroundingBushing to Cable Tray or Channel byCable
ELIGD226 – Cable Tray Bonding - Bondingof 3" Conduit with Grounding Bushingto Cable Tray or Channel by Cable
ELIGD227 – Cable Tray Bonding - Bondingof 4" Conduit with Grounding Bushingto Cable Tray or Channel by Cable
ELIGD228 – Cable Tray Bonding - Bondingof 1/2" Conduit with Grounding Clampto Cable Tray or Channel by Cable
ELIGD229 – Cable Tray Bonding - Bondingof 3/4" Conduit with Grounding Clampto Cable Tray or Channel by Cable
ELIGD230 – Cable Tray Bonding - Bondingof 1" Conduit with Grounding Clamp toCable Tray or Channel by Cable
ELIGD231 – Cable Tray Bonding - Bondingof 1-1/4" Conduit with GroundingClamp to Cable Tray or Channel byCable
ELIGD232 – Cable Tray Bonding - Bondingof 1-1/2" Conduit with GroundingClamp to Cable Tray or Channel byCable
ELIGD233 – Cable Tray Bonding - Bondingof 2" Conduit with Grounding Clamp toCable Tray of Channel by Cable
ELIGD234 – Cable Tray Bonding - Bondingof 2-1/2" Conduit with GroundingClamp to Cable Tray of Channel byCable
ELIGD235 – Cable Tray Bonding - Bondingof 3" Conduit with Grounding Clamp toCable Tray or Channel by Cable
ELIGD236 – Cable Tray Bonding - Bondingof 4" Conduit with Grounding Clamp toCable Tray or Channel by Cable
ELIGD239 – Metallic Cable Tray Bonding -Cable Tray with Expansion orAdjustable Splice Plate
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ELIGD250 – Power Transformer withGround Pad #2/0 Connection withProtective Sleeve
ELIGD251 – Power Transformer withGround Pad #2/0 Connection withoutProtective Sleeve
ELIGD252 – Power Transformer withGround Pad #4/0 Connection withProtective Sleeve
ELIGD253 – Power Transformer withGround Pad #4/0 Connection withoutProtective Sleeve
ELIGD257 – Lighting Transformer withGrounding Electrode Connection atPanel and with Protective Sleeve
ELIGD258 – Lighting Transformer withGrounding Electrode Connection atPanel and without Protective Sleeve
ELIGD259 – Lighting Transformer withGrounding Electrode Connection atTransformer and with ProtectiveSleeve
ELIGD260 – Lighting Transformer withGrounding Electrode Connection atTransformer and without ProtectiveSleeve
ELIGD303 – Motor Bonding Jumper #2without Protective Sleeve
ELIGD304 – Motor Bonding Jumper #2/0without Protective Sleeve
ELIGD313 – Motor Bonding Jumper #2 withProtective Sleeve
ELIGD314 – Motor Bonding Jumper #2/0with Protective Sleeve
ELIGD400 – 3/4" Ground Rod withCompression Connection
ELIGD401 – Ground Well with MechanicalConnection, 3/4" Ground Rod andPolyethylene Pipe Well
ELIGD402 – 3/4" Ground Rod withCompression Connection and TwoGround Wires
ELIGD403 – Ground Well with MechanicalConnection, Two Ground Wires, 3/4"Ground Rod and Polyethylene PipeWell
ELIGD404 – 10' Ground Rod CompressionConnection to #2/0 - #4/0 AWG Wire
ELIGD405 – Multiple Ground RodInstallation with CompressionConnection to #2/0 - #4/0 AWG Wire
ELIGD406 – Compression SpliceConnection #2/0 to #2/0
ELIGD407 – Compression SpliceConnection #4/0 to #4/0
ELIGD408 – Compression Tap Connection#2/0 Run - #2 Tap
ELIGD409 – Compression Tap Connection#2/0 Run - #2/0 Tap
ELIGD410 – Compression Tap Connection#4/0 Run - #2 Tap
ELIGD411 – Compression Tap Connection#4/0 Run - #2/0 Tap
ELIGD412 – Compression Tap Connection#4/0 Run - #4/0 Tap
ELIGD413 – Compression Cross Section#2/0 to #2/0
ELIGD414 – Compression CrossConnection #4/0 to #4/0
ELIGD415 – Compression Connection toRebar #2 Wire to 3/8" - 1/2" Rebar
ELIGD416 – Compression Connection toRebar #2 Wire to 5/8" - 3/4" Rebar
ELIGD417 – 1" Ground Rod withCompression Connection
ELIGD418 – Ground Well with MechanicalConnection, 1" Ground Rod andPolyethylene Pipe Well
ELIGD419 – Ground Rod withCompression Connection, TwoGround Wires and 1" Ground Rod
ELIGD420 – Ground Well with MechanicalConnection, Two Ground Wires, 1"Ground Rod and Polyethylene PipeWell
ELIGD421 – 1" x 10' Ground RodCompression Connection to#2/0 - #4/0 AWG Wire
ELIGD422 – Multiple Ground RodInstallation with CompressionConnection to #2/0 - #4/0 AWG Wire
ELIGD423 – Ground Well with MechanicalConnection, 3/4" Ground Rod andClay Tile Well
ELIGD424 – Ground Well with MechanicalConnection, Two Ground Wires, 3/4"Ground Rod and Clay Tile Well
ELIGD425 – Ground Well with MechanicalConnection, 1" Ground Rod and ClayTile Well
ELIGD426 – Ground Well with MechanicalConnection, Two Ground Wires, 1"Ground Rod and Clay Tile Well
ELIGD450 – Ground Bus Bar Attached toStructural Steel 12" Long with DrillingsOnly - Not Isolated
ELIGD451 – Wall Mounted Ground Bus Bar18" Long with Drillings Only - NotIsolated
PIP ELIGD000Grounding Installation Details January 2002
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ELIGD452 – Wall Mounted Ground Bus Bar24" Long with Drillings Only - NotIsolated
ELIGD454 – MCC and Switchgear GroundBus #2/0 Ground Wire
ELIGD455 – MCC and Switchgear GroundBus #4/0 Ground Wire
ELIGD456 – Ground Bus Bar Attached toStructural Steel 12" Long with ServicePost Connectors-Not Isolated
ELIGD457 – Wall Mounted Ground Bus Bar18" Long with Service PostConnectors - Not Isolated
ELIGD458 – Wall Mounted Ground Bus Bar24" Long with Service PostConnectors - Not Isolated
ELIGD460 – Ground Bus Bar Attached toStructural Steel 12" Long with DrillingsOnly-Isolated
ELIGD461 – Wall Mounted Ground Bus Bar18" Long with Drillings Only - Isolated
ELIGD462 – Wall Mounted Ground Bus Bar24" Long with Drillings Only - Isolated
ELIGD466 – Ground Bus Bar Attached toStructural Steel 12" Long with ServicePost Connectors-Isolated
ELIGD467 – Wall Mounted Ground Bus Bar18" Long with Service PostConnectors - Isolated
ELIGD468 – Wall Mounted Ground Bus Bar24" Long with Service PostConnectors - Isolated
ELIGD500 – Pad Mounted Vessels andEquipment #2 Ground Connection withProtective Sleeve
ELIGD501 – Pad Mounted Vessels andEquipment #2 Ground Connectionwithout Protective Sleeve
ELIGD502 – Pad Mounted Vessels andEquipment #2/0 Ground Connectionwith Protective Sleeve
ELIGD503 – Pad Mounted Vessels andEquipment #2/0 Ground Connectionwithout Protective Sleeve
ELIGD601 – Fence Grounding - 2" Post,Fabric and Barbed Wire
ELIGD602 – Fence Grounding - 2-1/2"Post, Fabric and Barbed Wire
ELIGD603 – Fence Grounding - GateELIGD604 – Fence Grounding - 2" PostELIGD605 – Fence Grounding - 2-1/2" Post
PIP ELIGD000January 2002 Grounding Installation Details
Process Industry Practices Page 5 of 6
1. Introduction
1.1 Purpose
The purpose of this Practice is to provide the typical information needed forconstruction of grounding systems in chemical and refining facilities. The bondingand grounding design and installation shall be in accordance with the NationalElectrical Code.
1.2 Scope
These installation details include power system and equipment grounding, staticgrounding protection for equipment in classified locations, grounding electrodeconnections, and step and touch potential grounding.
Not included in the scope of this Practice are lightning protection, computer andcontrol system grounding, and cathodic protection.
2. References
Applicable requirements in the latest edition (or the edition indicated) of the followingindustry codes, standards, and references shall be considered an integral part of this Practice.
2.1 Industry Codes and Standards
• National Fire Prevention Association (NFPA)
– NFPA 70 - National Electrical Code (NEC)
3. General Information
3.1 Category Index
Detail Number Grounding Detail Category
ELIGD060 – ELIGD099 Buildings
ELIGD100 – ELIGD149 Structural Columns
ELIGD150 – ELIGD199
ELIGD200 – ELIGD249 Cable Tray
ELIGD250 – ELIGD299 Substations and Transformers
ELIGD300 – ELIGD349 Motors
ELIGD350 – ELIGD399
ELIGD400 – ELIGD449 Earth Terminals
ELIGD450 – ELIGD499 Ground Bus
ELIGD500 – ELIGD549 Vessels, Tanks, and Pipelines
ELIGD550 – ELIGD559
ELIGD600 – ELIGD649 Fences
ELIGD650 – ELIGD699 Miscellaneous
PIP ELIGD000 STEERING TEAM BALLOTGrounding Installation Details 2/29/00
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3.2 User Guidance
The details are provided for specific cases. They are unique for specific wire andconduit sizes, with or without protective sleeves, etc. The intent is that the details bereferenced individually as required and that only the needed details be issued to thefield. The details applicable to a particular project should be selected.
The title block can be modified to add project reference information. Themanufacturer’s name and catalog number, code numbers, and/or materials ofconstruction may be added to the bill of materials table on each detail.
PIP does not permit the figures in these details to be modified unless the PIP logoand all references to PIP are deleted from the detail. PIP’s intent is to preventmodification of these details through both the software used, when practical, andthrough exercise of its copyright control of the use of the documents.