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#102077 - 12/13/04 08:57 AM incoming service

Registered: 10/22/03
Posts: 178
Loc: toronto canada
I have an incoming service 600v 100amp going to a 3 storey commercial bldg, it is being fed overhead, my question is this, can i run the conduit though the parking garage ceiling 50'to the electrical room into the main then into the meter center.Something tells me i can,t but if i do underground from the weatherhead to the electrical room that is ok?

2014 / 2011 NEC & Related Books and Study Guides
#102078 - 12/14/04 04:48 PM Re: incoming service
crash Offline

Registered: 10/21/03
Posts: 130
Loc: Calgary Canada
That "something" that is "telling you", might be 6-208. Underground is OK but 50 ft through the parkade is not allowed.

#102079 - 12/15/04 03:11 PM Re: incoming service
Tony Moscioni Offline

Registered: 05/15/01
Posts: 144
Where judgement required about "as close as practicable", the following may be used for
guidance on the maximum length of run:

(i) 1.5 m into rooms or areas of combustible construction; or

(ii) 7.5 m into other areas provided:
„h the wiring method is rigid conduit, electrical metallic tubing (EMT) or a cable
with a continuous metal sheath or interlocking armour, (No PVC greater than
625mm2 as per Building Code), and
„h the conduit or cable is mechanically protected where it is within 2 m of the floor.

Tony Moscioni
Electrical Inspector
Electrical Safety Authority


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