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Do-It-Yourself (DIY) Question & Answer Forum
9.5kw shower
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<blockquote data-quote="PC Electrics" data-source="post: 176948" data-attributes="member: 650"><p>Assuming no derating required, then 6mm is okay as it has a ccc of 47 amps (subject to volt drop if it's a long run - you're good for 20m). I always clip 6mm cable for showers round the woodwork in a loft and where it passes vertically through the insulation layer I use a piece of 4 inch soil pipe to ensure an air gap around the cable.</p><p></p><p>Surprised they haven't had any MCB tripping issues - maybe they take short showers. You could change the MCB to 40A (9.5kW shower = 39.6A).</p><p></p><p>Burned neutral connection almost certainly down to loose connection. I've repaired many like this by crimping in a new piece of conductor (if there's no slack to pull through). I've also taken to putting cord end ferrules on the conductors to stop the wires spreading under the connection screws.</p></blockquote><p></p>
[QUOTE="PC Electrics, post: 176948, member: 650"] Assuming no derating required, then 6mm is okay as it has a ccc of 47 amps (subject to volt drop if it's a long run - you're good for 20m). I always clip 6mm cable for showers round the woodwork in a loft and where it passes vertically through the insulation layer I use a piece of 4 inch soil pipe to ensure an air gap around the cable. Surprised they haven't had any MCB tripping issues - maybe they take short showers. You could change the MCB to 40A (9.5kW shower = 39.6A). Burned neutral connection almost certainly down to loose connection. I've repaired many like this by crimping in a new piece of conductor (if there's no slack to pull through). I've also taken to putting cord end ferrules on the conductors to stop the wires spreading under the connection screws. [/QUOTE]
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9.5kw shower
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