Panel Interlock's legal in Ontario (Canada)?


Old 03-25-09, 09:36 PM
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Location: Northwestern Ontario (Canada)
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Panel Interlock's legal in Ontario (Canada)?

Are main/sub interlock kits legal for use in the Ontario Electrical code for generator feeds via a breaker backfeed ?

My meterbase and panel are back to back and all the wiring is buried in the sheetrock.. real pain to break it out into a transfer switch panel (plus circuit requirements are too numerous for the remote panels Ive seen so far..).
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Old 03-26-09, 05:05 AM
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I would just give a quick call to your AHJ and ask them. That way there will be no question.
Old 03-26-09, 06:42 PM
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TMK,no. You need a transfer device that switches neutral as well as the two hots.

Schneider makes a panel handy for that, which I believe can handle 12 or 16 branch circuits.
If you have a recent FPE stab-lock panel, you can use the breakers from it.

Knocking out a bit of drywall shouldnt be an issue if done right.
Old 03-26-09, 08:30 PM
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Well, the new panel would have to go to the right of the existing, so any of the circuits on the left side of the existing that ended up coming across the garage ceiling along the same path (ie, straight across then straight down), are not going to be long enough. Granted, Im sure I could make a tub connection and extend them like that. Would look like crap though.. lol.

I ran across a product today on a canadian site, of a transfer box that connects between the meter and the meter base. You end up with a pretty ugly large cable sticking out from your meter to a box on the outside wall.

I guess Ill have to shoot an email to the electrical authority.

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