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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
    A load of  a couple of kw on a ring is much more bearable, the only question is the inrush. If it has been running on the 13A fuse in a plug for a while, then a 13A spur ought to be man enough, though I'd avoid mounting it near a heater or in a poorly ventilated cupboard (13A spurs in airing cupboards seem to be prone to cooking over time, though this is a less onerous case, the risk is similar.)

    I terms of surge rating, a 13A  fuse is often less sensitive than a 16A MCB.

    Even so, please ask yourself how loaded the ring currently is, and will there be enough spare capacity for the other loads in the house.
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  • 0
    A load of  a couple of kw on a ring is much more bearable, the only question is the inrush. If it has been running on the 13A fuse in a plug for a while, then a 13A spur ought to be man enough, though I'd avoid mounting it near a heater or in a poorly ventilated cupboard (13A spurs in airing cupboards seem to be prone to cooking over time, though this is a less onerous case, the risk is similar.)

    I terms of surge rating, a 13A  fuse is often less sensitive than a 16A MCB.

    Even so, please ask yourself how loaded the ring currently is, and will there be enough spare capacity for the other loads in the house.
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