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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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    I agree with Graham here. The standard calls for a “per accessory” rating of 13A regardless of the number of outlets, so the maximum current that can be drawn from a double socket is 13A, the same as a single, and indeed a triple which should have a 13A fuse fitted to it.


    I am aware that certain manufacturers do rate their double sockets in excess of what is required by BS1362-2, however there is no need for them to do so, or guarantee that they will continue making sockets with the enhanced ratings. 


    Regards,


    Alan.
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  • 0
    I agree with Graham here. The standard calls for a “per accessory” rating of 13A regardless of the number of outlets, so the maximum current that can be drawn from a double socket is 13A, the same as a single, and indeed a triple which should have a 13A fuse fitted to it.


    I am aware that certain manufacturers do rate their double sockets in excess of what is required by BS1362-2, however there is no need for them to do so, or guarantee that they will continue making sockets with the enhanced ratings. 


    Regards,


    Alan.
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