On 06/06/2019 20:47, dennis@home wrote:
On 06/06/2019 18:46, John Rumm wrote:
On 06/06/2019 12:48, Andy Burns wrote:
David wrote:

The box has 3 * 2 wire 773 connectors which are yellow plastic.
773 should be good for up to 2.5 mm and 24A so presumably are suitable?
Can someone please confirm?

As the 773-102 is only rated to 24A, but the ring will likely have a
32A MCB, really you should use a 222-412 wago connector instead.

The "as installed" required rating for a cable on a 32A ring is only
21A, so in general 24A should be ok, unless you are aware of specific
reasons why it should not be (say the joint was at one end of an
asymmetric ring)


What is an asymmetric ring?

One with most of the sockets distributed near one end of it... Say where
someone has installed a long run of sockets starting close to the CU,
and then just returned the last leg from the far end, rather than
distributing the load on the way out and the way back IYSWIM.

Only the installer will know where the cables go so any ring could have
an asymmetric load put on it by a householder. It just depends on what
he plugs in.

Well we are talking about someone modifying the wiring, not just normal
use. So hopefully the installer will have some clue. If they were
unsure, then upping the terminal capacity to the higher load version
would be a sensible mitigation.




--
Cheers,

John.

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