what temperature can a bs1363-2 dual gang faceplate withstand

what temperature can a bs1363-2 dual gang faceplate withstand?

I see BS1363-2 details the ambient temperature range of -5 to 40degC, but what is the physical allowable contact temperature to the faceplate front? i.e the temperature conducted from a plug top or a pluggable PSU etc.

Asking as I've seen a few examples cracking recently (see picture) all examples are cracking vertically from the bottom to the top centered between the line and neutral up towards the earth socket hole.

Some thoughts are this is due to over tightened screws

Thanks in advance for any help on this one.

Parents
  • I had a similar issue recently.  See attached picture

    The culprit was a Hot Tub.  Which claims it uses 2050W at 20°C

    thus

    2050w / 230v = 8.91

    Now factor in the usage for 8 hours and the plug and socket arrangement starts to warm up.

  • The culprit was a Hot Tub. 

    Has this been confirmed by repeating the arrangement and observing the same behaviour with one or more replacement socket-outlets?

    Apologies for being pedantic. I can see the argument that, if something is going to fail it might be more prone to fail if something gets hot ... but it's not conclusive proof that there wasn't a crack or weakness in the existing socket-outlet (for whatever reason, say being dropped or banged around in a vehicle prior to fitting), that became worse in use.

    The damage being on the the engagement face that takes the mechanical punishment in use.


    I'm sure we have seen similar cracks with socket-outlets that have very little power going through them all their life.

  • A BS 1363 double socket is permitted a 52 K temperature rise at between 4 and 8 hours with a load of 14 A + 6 A, so your hot tub should not be a problem. Note: 14 A + 6 A, not 2 x 13 A.

  • , so your hot tub should not be a problem.

    Provided the plug on the hot tub conforms to BS 1363-1, is not damaged, and, if rewirable, is fitted properly.

Reply Children
No Data