Equipment Grounding Question
Equipment Grounding Question
(OP)
I have a few skids with various motors and so forth on each. My question is as follows:
What is best practice with regard to grounding:
Ground each item to the skid and then the skid to the ground grid...
or...
Ground each item to the ground grid itself
What are the advantages/disadvantages for each method?
Thanks in advance for your time and informed answers!
What is best practice with regard to grounding:
Ground each item to the skid and then the skid to the ground grid...
or...
Ground each item to the ground grid itself
What are the advantages/disadvantages for each method?
Thanks in advance for your time and informed answers!





RE: Equipment Grounding Question
RE: Equipment Grounding Question
If these are small motors, I think supplemental grounding to the skid is probably fine. If these are very large motors, it is not unusual to provide a dedicated stinger to each motor from the grid. But for a ground fault in the motor, almost all of the fault current is going to flow in the equipment ground. All other paths will have a much higher inductive reactance.
David Castor
www.cvoes.com
RE: Equipment Grounding Question
Bill
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"Why not the best?"
Jimmy Carter
RE: Equipment Grounding Question
We've queired this requirement from our CSA inspector and they insist on it.