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10kv ductor testing 1

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DaCaone

DaCaone

Electrical
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Jan 21, 2016
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I know there is no minimum value for contact resistance measurement but with 10kv bus bars are there any guidelines or rule of thumb values as I have no manufacturers information or just go by 10 micro ohms
 
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Depends on what size bar you're looking at. A 400A distribution switchgear busbar will measure differently to a 20,000A generator main output bus: on the latter I'd be concerned about anything in the 10u[Ω] range, but on the former I'd be quite happy.
 
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