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Do-It-Yourself (DIY) Question & Answer Forum
Running two mini consumer units from main one, as sub-circuits
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<blockquote data-quote="Rob_the_rich" data-source="post: 423944" data-attributes="member: 8419"><p>Not much point running ring circuits, just run radials with 2.5 t&amp;e with 16 or 20A MCBs, save a bit of cable.</p><p></p><p>Think about using RCBOs for final circuits.</p><p></p><p>I would have fridge freezer on its own circuit, preferably with an rcbo or without RCD protection on a fused connection unit.</p><p></p><p>Is the original 6mm cable SWA or T&amp;E? If SWA, is it 2-core or 3-core?</p><p></p><p>Does it run through insulation or hot areas? Am thinking it might need derating.</p><p></p><p>Is it buried in a wall less than 50mm deep? Am thinking you may not be able to remove the front end RCD protection.</p><p></p><p>If you have a washing machine, I assume there is water, so might have to be bonded if metal pipes.</p></blockquote><p></p>
[QUOTE="Rob_the_rich, post: 423944, member: 8419"] Not much point running ring circuits, just run radials with 2.5 t&e with 16 or 20A MCBs, save a bit of cable. Think about using RCBOs for final circuits. I would have fridge freezer on its own circuit, preferably with an rcbo or without RCD protection on a fused connection unit. Is the original 6mm cable SWA or T&E? If SWA, is it 2-core or 3-core? Does it run through insulation or hot areas? Am thinking it might need derating. Is it buried in a wall less than 50mm deep? Am thinking you may not be able to remove the front end RCD protection. If you have a washing machine, I assume there is water, so might have to be bonded if metal pipes. [/QUOTE]
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Do-It-Yourself (DIY) Question & Answer Forum
Running two mini consumer units from main one, as sub-circuits
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