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Thoughts on 10mm supply with 6mm main earth
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<blockquote data-quote="Phoenix" data-source="post: 501900" data-attributes="member: 8133"><p>The meters are located in the flat? right (assume there is another cutout, likely with a solid link local to the meter?) I'd suggest that the conduit and the 10mm conductors are not under BS7671 at all... they belong to the DNO, or rather some mythical entitity they call a BNO as an excuse to not be responsible for stuff they themselves installed decades earlier.</p><p></p><p>I'd not worry too much if its just a consumer unit change, you can make a note that you reckon its undersized on the supply side if you wish, you are not adding any load, i.e. not making the situation anymore of a problem than it is now. If it however was a new shower circuit you were fitting you might have more of a worry as BS7671 require you to make sure existing gear including that of teh distributor is suitable for the load increase.</p><p></p><p>Are you sure its 10mm singles, does it look slightly bigger, could be 7/064 depending on age, though if it doesn't look bigger then it could just be 7/052</p></blockquote><p></p>
[QUOTE="Phoenix, post: 501900, member: 8133"] The meters are located in the flat? right (assume there is another cutout, likely with a solid link local to the meter?) I'd suggest that the conduit and the 10mm conductors are not under BS7671 at all... they belong to the DNO, or rather some mythical entitity they call a BNO as an excuse to not be responsible for stuff they themselves installed decades earlier. I'd not worry too much if its just a consumer unit change, you can make a note that you reckon its undersized on the supply side if you wish, you are not adding any load, i.e. not making the situation anymore of a problem than it is now. If it however was a new shower circuit you were fitting you might have more of a worry as BS7671 require you to make sure existing gear including that of teh distributor is suitable for the load increase. Are you sure its 10mm singles, does it look slightly bigger, could be 7/064 depending on age, though if it doesn't look bigger then it could just be 7/052 [/QUOTE]
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Thoughts on 10mm supply with 6mm main earth
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