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Old 01-19-2011, 02:37 AM   #1
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Default Grounding
When should I use a grounding bushing? Is there a general rule?

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Old 01-19-2011, 03:31 AM   #2
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Quote:
Originally Posted by Apprentice_617 View Post
When should I use a grounding bushing? Is there a general rule?
You bet there are rules but they have a lot of ins and outs you should really read the rules from the book yourself.

For starters take a look at 250.90, 250.92, 250.94, 250.96, and 250.97


.92 and .97 are the ones most of us run into most often.

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Old 01-19-2011, 03:18 PM   #3
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Thank you.
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Old 01-19-2011, 03:39 PM   #4
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I love how you know all of those sections off the top of your head.
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Old 01-19-2011, 04:39 PM   #5
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Mike Holt has a good book Grounding versus Bonding
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