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#92613 - 03/29/05 10:37 AM 310.4 Parallel Conductors
Yoopersup Offline
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Registered: 03/04/03
Posts: 822
Loc: Michigan
310.4 I take it applys to ALL voltages . 2400-4160-7200 ect. Just confirming.
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#92614 - 03/29/05 04:41 PM Re: 310.4 Parallel Conductors
Bob Offline
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Registered: 02/05/02
Posts: 182
Loc: Mobile, AL, USA
Read 300.2A For limitations
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#92615 - 03/29/05 05:40 PM Re: 310.4 Parallel Conductors
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
Read BUT in 310.4 no mention of applying or Not applying Thus the Question.Shielding ect dealth with in same area SO . To me parellel conductors are parelle conductors no matter what Voltage.
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#92616 - 03/29/05 08:25 PM Re: 310.4 Parallel Conductors
Bob Offline
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Registered: 02/05/02
Posts: 182
Loc: Mobile, AL, USA
Chapter 3 Wiring Methods and Material
covers 310.4. Therefore 300.2A says that this chapter covers only 600 volt cable.
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#92617 - 03/30/05 05:04 AM Re: 310.4 Parallel Conductors
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
Bob
If thats True where in the N.E.C. does it deal with parellel conductors over 600 volts .???? There are Several references to over 600 volts in Art. 310. & 300.3 B(1) referes you to 392.8d Parallel conductors in tray, which is deals with over 600 volts in that section(Tray).
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#92618 - 03/30/05 11:16 AM Re: 310.4 Parallel Conductors
Nick Offline
Member
Registered: 08/13/01
Posts: 599
Loc: Riverside, CA
Take a look at 300.1(A)

"Scope.All Wiring Installations. This article covers wiring methods for all wiring installations unless modified by other articles."
Since the over 600V sections do not modify the rules for paralleling I would say that they apply.
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#92619 - 03/30/05 02:20 PM Re: 310.4 Parallel Conductors
Bob Offline
Member
Registered: 02/05/02
Posts: 182
Loc: Mobile, AL, USA
Nick
It looks like 300.1A got motified by 300.2A.
Yoopersup
As far as I can tell the NEC has very little to say about installation of over 600 volt systems.

[This message has been edited by Bob (edited 03-30-2005).]
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