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When establishing an electrically safe work condition, do you also apply grounds to the circuit?
Yes
No
Depends on the situation
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 Post subject: Grounding the circuit
PostPosted: Sun Mar 04, 2012 8:38 am 
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Joined: Mon Sep 17, 2007 5:00 pm
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Location: Scottsdale, Arizona
When establishing an electrically safe work condition, do you also apply grounds to the circuit?
  • Yes
  • No
  • Depends on the situation

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Jim Phillips, P.E.
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PostPosted: Mon Mar 05, 2012 12:14 pm 
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Joined: Tue Oct 11, 2011 8:19 pm
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Location: Manaia, Taranaki, New Zealand
We don't bother earthing out LV circuits but anything MV and above is not deamed Isolated until earths are applied to the circuit.

Dave Sargent
Origin Energy NZ


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PostPosted: Fri Mar 16, 2012 10:55 am 

Joined: Wed Oct 20, 2010 11:46 am
Posts: 12
i second what Dave said...we'll perfrom voltage checks on the LV side and then ground out the MV systems.


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PostPosted: Fri Mar 16, 2012 9:22 pm 
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Joined: Thu Oct 18, 2007 7:10 pm
Posts: 263
Location: NW USA
Has much to do with context. Some facilities are more comfortable with a visible open; i.e: withdraw the breaker; but on systems with overhead distribution lines (exposure to accidental energization or induced voltage) grounding is the norm, always.


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