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#102329 - 01/18/06 09:57 AM max voltage for conductors in parallel
student Offline
Junior Member

Registered: 01/08/06
Posts: 6
What rule tell us about max voltage for conductors in parallel.Must be #1 or larger but it does not say about mah. voltage.Thanks

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#102330 - 01/18/06 05:24 PM Re: max voltage for conductors in parallel
RobbieD Offline
Member

Registered: 02/23/03
Posts: 238
Loc: Canada
I don't think that there is a max voltage for conductors in parallel.

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#102331 - 01/18/06 07:33 PM Re: max voltage for conductors in parallel
student Offline
Junior Member

Registered: 01/08/06
Posts: 6
Those 2 questions I got on my IP exam ,max voltage for conductors in parallel and mineral insulated cable suport in hazardous locations.No answers I couldn't find in the CEC book.Thanks

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#102332 - 01/19/06 04:28 AM Re: max voltage for conductors in parallel
frank Offline
Member

Registered: 05/29/01
Posts: 373
Loc: windsor ontario canada
i think this may be a HV question with regards to parallel pulls between switchgear and equipment?

[This message has been edited by frank (edited 01-19-2006).]

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#102333 - 01/19/06 05:56 PM Re: max voltage for conductors in parallel
bigrockk Offline
Member

Registered: 01/25/03
Posts: 175
Loc: Middle of Canada
Is it at all possible that you slightly misunderstood or misread the question??
The only rules I can find that refer to maximum voltages between conductors are the following:

12-502 Maximum Voltage. Nonmetallic-sheathed cable shall not be used where the voltage exceeds 300 V between any two conductors.

12-1608 Maximum Voltage. The voltage between conductors contained in surface raceways shall not exceed 300 V unless the raceways are marked for a higher voltage.

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#102334 - 01/20/06 12:02 AM Re: max voltage for conductors in parallel
student Offline
Junior Member

Registered: 01/08/06
Posts: 6
The question was what is max. voltage for conductors in parallel.
Simple short question...

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#102335 - 01/20/06 08:05 AM Re: max voltage for conductors in parallel
Rick Kelly Offline
Member

Registered: 01/11/06
Posts: 60
Loc: Iqaluit, NU, Canada
There is only one rule in the 19th edition of the CEC that tells us anything about voltage as far as conductors in parallel is concerned and that rule is 12-108(c). The insulation class (voltage withstand levels and temperature rating) must be the same for conductors in parallel.

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