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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Wiring immersion boost switches... Gotcha!
I have two immersions, & what I didn't find out til I went to fit the boost timers is that one of the exstg two immersion switches, A, also feeds the spur? to switch B of the other immersion.... Net result is so far I can't fit both "feed" cables into the terminals on the rear of the boost timer that I want to replace switch A.. Any workarounds please? I'll check the ratings of the immersion heaters tomorrow but I believe they are 3kw. The cables are thick multi stranded & I can't fit two in the terminals of the new boost switch at A. I suppose the radial cable from the CU (supplying both immersions) should be ?4mm? It's protected by a 32amp rcbo... But the feed from switch A to switch B needn't be in 4mm too if immersion B is 3kw? I'm thinking that could be 2.5mm2? which might be more doable... TIA -- Jim K ----Android NewsGroup Reader---- http://usenet.sinaapp.com/ |
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