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NFPA 79:external power vs estop string 1

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Wallowitz

Electrical
May 28, 2009
2
From NFPA 79, 13.2.4 requires that orange is to be used for conductors that do not de-energize when a disconnect is switched off. How does that reconcile with a production line that has multiple machines but only one central estop string. Do all of the estop conductors have to be orange in the various line components?

Thanks,

Wallowitz
 
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If power remains on them after the disconnect is switched off, yes.

David Baird

Sr Controls Designer
EET degree.
Journeyman Electrician.
 
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