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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
    Thanks for all the replies


    Given its now been removed from the latest editions, and doing so would result in none standard installation, I will look at ways to run a dedicated circuit.


    Ive been looking at the specs of the clients heat pump. As mentioed, they said they had been running it on a 13A plug for some time. There doesnt seem to be any overloading signs at the plug terminal for heat, although it was midly warm to the touch when I arrived to have a look (they still had it running)


    Under the specs of the P12 given in the link below, it states a running current of 7.8A, and reccommends a slow fuse of 15A. I assume this is to account for surges during the compressor pump motor / fan motor start up.

    https://www.automatedenvironmentalsystems.co.uk/wp-content/uploads/2019/03/AES-Hydro-Pro-P-Type-Specifications.pdf


    So if its running current is 7.8A, and any induction motor surges would probably be short enough in time to not blow a 13a BS1362 fuse, Could this work off a 13a FCU spur?
Reply
  • 0
    Thanks for all the replies


    Given its now been removed from the latest editions, and doing so would result in none standard installation, I will look at ways to run a dedicated circuit.


    Ive been looking at the specs of the clients heat pump. As mentioed, they said they had been running it on a 13A plug for some time. There doesnt seem to be any overloading signs at the plug terminal for heat, although it was midly warm to the touch when I arrived to have a look (they still had it running)


    Under the specs of the P12 given in the link below, it states a running current of 7.8A, and reccommends a slow fuse of 15A. I assume this is to account for surges during the compressor pump motor / fan motor start up.

    https://www.automatedenvironmentalsystems.co.uk/wp-content/uploads/2019/03/AES-Hydro-Pro-P-Type-Specifications.pdf


    So if its running current is 7.8A, and any induction motor surges would probably be short enough in time to not blow a 13a BS1362 fuse, Could this work off a 13a FCU spur?
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