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extending a 3 phase board? extending a 3 phase board?
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Old 04-18-2008, 04:34 AM   #1
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Question extending a 3 phase board?
Is it ok to extend an existing 3 phase board, taking a single phase across (from the incomers) into a smaller single phase board in order to have a couple of extra independent circuits...

Or any tips on expanding an existing system, this is for a newsagents premises.

cheers.
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Old 04-18-2008, 10:30 AM   #2
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Providing your not adding more load than you have supply an additional boars from an mcb as a submain and mark it 'SUPPLY TO DB2', would be better than trying to jam another tail in with the feeder, you could move a circuit to the new board to create your spare way.
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