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Grid switch ratings enquiry

Farmboy
Had an interesting chat with a tech dept this afternoon after coming across some grid switches in a domestic kitchen.


Four grid switches (sharing a common backbox) are each fed via their own 16A cb's, and each feeds 1G sockets (for a cooker hood, fridge freezer, etc). Ignoring the cable sizes (the focus being on the grid switches), given the 13A plug fuses limits the loads in each cct, would you have the current rating of the grid switches equal to or higher than the 16A cb's (e.g. 20A), or lower (but equal to or higher than the socket rating e.g. 13A/14A)?


F
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    Chris Pearson:




    AJJewsbury:




    Am I reading this differently from everyone else? If a 'multiple socket outlet' is a combination of two or more socket outlets and the rated current of all socket-outlets shall be 13A, surely this means a multiple socket outlet with two socket outlets must be rated at 13A + 13A, or 26A for the unit. Or is this wrong?



    ... e.g. you could take the full 13A from either the left hand outlet, or the right hand one, but not necessarily both together ...

    It would be absurd if one could take the full 13 A from one side of a twin socket and nothing from the other - there would be no point in having a twin socket.

     




    That's not how diversity works?


    No-one would make the same statement about a 4-way (or 6-way or 10-way) "extension" with a 13 A plug, now, would they?

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  • 0

    Chris Pearson:




    AJJewsbury:




    Am I reading this differently from everyone else? If a 'multiple socket outlet' is a combination of two or more socket outlets and the rated current of all socket-outlets shall be 13A, surely this means a multiple socket outlet with two socket outlets must be rated at 13A + 13A, or 26A for the unit. Or is this wrong?



    ... e.g. you could take the full 13A from either the left hand outlet, or the right hand one, but not necessarily both together ...

    It would be absurd if one could take the full 13 A from one side of a twin socket and nothing from the other - there would be no point in having a twin socket.

     




    That's not how diversity works?


    No-one would make the same statement about a 4-way (or 6-way or 10-way) "extension" with a 13 A plug, now, would they?

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