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by chrisrr
Tue Feb 17, 2009 8:46 pm
Forum: Electrics Forum
Topic: cable calcs
Replies: 18
Views: 8927

Sparx, you're a day at the beach. Thank you very much indeed for this. Brilliant. Re 4mm, Screwfix don't stock it - period, neither does B&Q, Wickes, Homebase etc etc. I even phoned Screwfix just in case I couldn't see it on the website, but nope - don't sell it. I'll continue the search amongst...
by chrisrr
Fri Feb 13, 2009 8:44 am
Forum: Electrics Forum
Topic: Cable/MCB Query
Replies: 1
Views: 2452

Cable/MCB Query

I'm putting a remote CU in the (integral) garage which will be connected from the main cu in the house. The remote cu will supply a small radial circuit (3-4 sockets) AND a lighting circuit. What is the optimum setup for this? ie mcb at main cu, mcb at remote cu, cable size (I was going to use 4mm f...
by chrisrr
Fri Feb 13, 2009 7:22 am
Forum: Electrics Forum
Topic: cable calcs
Replies: 18
Views: 8927

Anyone?

If anyone's around that can shed some light here I'd be grateful? (and another question: why is 4mm cable not available anywhere? Very few places stock it - Screwfix dont and neither do B&Q.) [quote="chrisrr"]Sparx, your posts on this subject are superb and have really helped this newb...
by chrisrr
Thu Feb 12, 2009 10:55 am
Forum: Electrics Forum
Topic: cable calcs
Replies: 18
Views: 8927

Sparx, your posts on this subject are superb and have really helped this newbie a lot. Quick question about working out mcb's - we need to start with the design current, so in a lighting circuit we know will demand (for example) 3 lots of 60 watts is easy enough, but what do we do to work out design...
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