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#101914 - 02/09/04 07:07 AM Ground and Disconnect at Detached building
sparkyky Offline
Junior Member

Registered: 02/08/04
Posts: 3
Loc: lower 48
Greetings ~

Can you inform me of the CEC residential requirements for any grounding electrode,and type needed ,in addition to the feeder ground conductor, at the detached structure,when a feeder is installed from the building where the primary service is located?

I also would like to know where this residential feeder disconnect is required to be located at this detached building.

Many Thanks

2014 / 2011 NEC & Related Books and Study Guides
#101915 - 02/09/04 05:36 PM Re: Ground and Disconnect at Detached building
Tony Moscioni Offline

Registered: 05/15/01
Posts: 144

Two or More Buildings


Ground system neutral at main service;

Ground neutral at second building to an electrode (no bond wire) or:

Run a separate neutral and bond wire to second building (not for buildings housing livestock)

Main disconnecting means required at second building in all installations at point of entry, adjacent to distribution equipment.

Tony Moscioni
Electrical Inspector
Electrical Safety Authority

#101916 - 02/10/04 04:06 AM Re: Ground and Disconnect at Detached building
sparkyky Offline
Junior Member

Registered: 02/08/04
Posts: 3
Loc: lower 48
thank you,Tony M

The NtlElecCode NEC for USA requires a grounding electrode in all detached buildings where there is a sub feeder ran.

The CEC then,does not ,as it depends soley on the ground wire ran with the feeder?



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