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Historical question WRT 15 amp sockets.

broadgage

ISTR that in an old edition of the then IEE regs, that two socket outlets each of the unfused 15 amp type could be connected to a 25 amp fuse.

Have found a number wired thus in a large old house. Possibly pre-war, wired in MICC and still in good condition. 

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    The only appliances likely to be plugged directly into the 15 amp sockets are  heaters. And two standard lamps but these are fitted with 15 amp plugs that contain a 5 amp fuse.

    Everything else has 13 amp plugs and is used via extension leads. 1.5mm heavy duty flex from a 15 amp plug into a multiway trailing 13 amp socket. These trailing sockets incorporate a 13 amp fuse. 

    Two such leads used at the same time and fully loaded is a bit unlikely, but if it did happen is only a 1 amp overload.

    The existing MICC cable is terminated into cast iron boxes, these have a custom made hardwood front cover in which are mounted the two 15 amp sockets.

    Disturbance to update is not wanted in the upper floors. PARTS of the ground floor can have new wiring installed from below.

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  • 0

    The only appliances likely to be plugged directly into the 15 amp sockets are  heaters. And two standard lamps but these are fitted with 15 amp plugs that contain a 5 amp fuse.

    Everything else has 13 amp plugs and is used via extension leads. 1.5mm heavy duty flex from a 15 amp plug into a multiway trailing 13 amp socket. These trailing sockets incorporate a 13 amp fuse. 

    Two such leads used at the same time and fully loaded is a bit unlikely, but if it did happen is only a 1 amp overload.

    The existing MICC cable is terminated into cast iron boxes, these have a custom made hardwood front cover in which are mounted the two 15 amp sockets.

    Disturbance to update is not wanted in the upper floors. PARTS of the ground floor can have new wiring installed from below.

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