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ground grid bonding

ground grid bonding

ground grid bonding

(OP)
We presently have the responsibility to augment a grounding grid for an existing gas plant.  Would someone be able to supply documented information or literature defining a distance between a metal body and a ground grid that would require the metal body to be bonded to the ground grid?  Please let me know if more information is required to properly address this question.  Thank you for your assistance, Gary

RE: ground grid bonding

Probably do not understand your question. Are you searching for electrical clearances to ground or are you upgrading the plant ground grid?.

For ground grid upgrade probably you should determine the
allowable step, touch potential and the max. GPR on the plant site. For that a ground grid design should be upgrade and the resistivity of the soil and the injected current to ground should be determine.

Please provide additional details.


RE: ground grid bonding

(OP)
I’m primarily interested in obtaining information on publications covering codes or guidelines for grounding grids.  Presently I’m not interested in receiving an answer to a specific grounding grid installation question.  Are you aware of any available code or guideline publications and where or how these publications might be purchased?  Regards, Gary

RE: ground grid bonding

IEEE 80

RE: ground grid bonding

Suggestion: Reference:
1. IEEE Std 142-1991 Recommended Practice for Grounding of Industrial and Commercial Power Systems
Reference 1 Section 3.3.3.2 Practices for Direct Protection, on pages 159-162 in Chapter 3 Static and Lightning Protection Grounding

RE: ground grid bonding

IEEE 665 Guide for Generating Station Grounding.

IEEE 387 Recommended Practice for Determining the Electrical Power Station Ground Potential Rise and Induced Voltage From Power fault"

IEEE Std 81.2 "Guide for Measurement of Impedance and Safety Characteristics of Large, Extended or Interconnected Grounding Systems"

IEEE 1050 "Guide for Instrumentation and Control Equipment Grounding in Generating Stations"

IEEE 86-EH0253-5-PWR Tutorial Course on "Practical Applicatons of ANSI/IEEE Std. 80-86"

IEEE C62.92: "Guide for the Application of Neutral Grounding in Electrical Utility Systems Part II--Grounding of Synchronous Generator Systems"
 
IEEE C62.92.4 & 5 "Guide for the Application of Neutral Grounding in Electric Utility Systems"

ANSI/IEEE C57.13.3 "Guide for the Grounding of Instrument Transformer Secondary Circuits and Cases "

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