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Immersion Heater & 13 Amp socket.

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We were discussing the rating of 13 Amp sockets recently, both double and single types. The rating seems to be 13 Amp. as indicated on the back of the accessories. Yesterday I had to replace a 13 Amp. single socket that became faulty. It supplied a 3000 Watt water heater. Did the 13  Amp plug burn out? No. Did the socket burn out? No. But the socket switch terminals welded together and would not switch off. So I fitted a 20 Amp double pole switch instead. So, even if a 13 Amp. socket is marked 13 Amp. it may not deliver 13 Amps. reliably, perhaps the makers apply "diversity" when calculating the load current and sizing the contacts for their 13 Amp sockets.


Z.
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    Chris Pearson‍ Yes, agreed, 99.99% of the time the bill or water temp would alert someone. But I was doing 'worst case scenario' for overheating of accessories. I agree with you that it would be unusual at the very least, I drive my colleague mad by doing the 'what if this, that and the other happened at the same time' <grin>

    Potential‍ It's possible to do decent work these days, but you have to pay 'over the minimum'. We for example will only use Prysmian (formerly Pirelli) or Doncaster cable. And we feed back to the wholesaler if there's an issue with a batch. (prysmian for example could do with hiring someone to check that the drum ends are at least slightly concentric lol).


    With accessories, the gap between the worst and the best is enormous. I suspect it was probably similar back in the 'good old days' but only the best has survived for 40+ years? The cable stiffness however, is definitely an issue
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    Chris Pearson‍ Yes, agreed, 99.99% of the time the bill or water temp would alert someone. But I was doing 'worst case scenario' for overheating of accessories. I agree with you that it would be unusual at the very least, I drive my colleague mad by doing the 'what if this, that and the other happened at the same time' <grin>

    Potential‍ It's possible to do decent work these days, but you have to pay 'over the minimum'. We for example will only use Prysmian (formerly Pirelli) or Doncaster cable. And we feed back to the wholesaler if there's an issue with a batch. (prysmian for example could do with hiring someone to check that the drum ends are at least slightly concentric lol).


    With accessories, the gap between the worst and the best is enormous. I suspect it was probably similar back in the 'good old days' but only the best has survived for 40+ years? The cable stiffness however, is definitely an issue
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