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16A on Ring

RustyH
Evening all,


I have a client who is looking for their swimming pool heat pump to be wired up. Manual requests for a 16A connection (although client has been running off a 13a plug!!).

The layout of the house and garden restricts the direct connection to the CU to being long and messy. 


The most direct route is to the lower socket ring. Im sure I remember reading on the old forum that a 16a RCD can be classed as a FCU. 

I can not seem to find reference to this in the regs though, is it stated in there?


If it is acceptable I could spur off this lower ring, in to a weatherproof CU with a double pole 16A RCD, then run SWA up the garden to the heat pump. 


Cheers

Rusty

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  • 0
    There is no such thing as a 16A RCD. RCDs detect leakage (not overload) and are commonly 30mA. I guess you are thinking of a 16A MCB. But no you cannot spur off a ring with a 16A MCB. The largest spur you can take from the ring is a 13A FCU.


    A new 16A circuit is required from the CU whether it is long and messy or not. New circuits are notifiable to Building Control at your local council. You have to notify before you start and pay a (hefty) fee. In practice it often works out cheaper and less hassle to employ a sparks who can self notify.
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  • 0
    There is no such thing as a 16A RCD. RCDs detect leakage (not overload) and are commonly 30mA. I guess you are thinking of a 16A MCB. But no you cannot spur off a ring with a 16A MCB. The largest spur you can take from the ring is a 13A FCU.


    A new 16A circuit is required from the CU whether it is long and messy or not. New circuits are notifiable to Building Control at your local council. You have to notify before you start and pay a (hefty) fee. In practice it often works out cheaper and less hassle to employ a sparks who can self notify.
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