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#189378 - 10/04/09 02:58 PM Redundant ground  
VBSELECTRIC1  Offline
New Member
Joined: Oct 2009
Posts: 1
California
Can some one explain what is Redundant grounding


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#189382 - 10/04/09 03:46 PM Re: Redundant ground [Re: VBSELECTRIC1]  
gfretwell  Offline


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Joined: Jul 2004
Posts: 9,136
Estero,Fl,usa
The term is used in article 517 (patient care areas) it generally refers to an additional grounding conductor.
They require a properly made up metallic wiring method (your ground) plus an insulated grounding wire (the redundant ground).


#189390 - 10/04/09 09:50 PM Re: Redundant ground [Re: gfretwell]  
McClarysElectric  Offline
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Joined: Oct 2009
Posts: 3
VA
Keep in mind the first EGC can be your conduit, then a properly sized insulated EGC inside.



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