Diversity factor on rewire

Deleted account · May 6, 2018

[/QUOTE]I'll add that when I was serving my time we completed an EICR on a 12 bed guesthouse (with attached 3 bed owners accomodation). The guesthouse was supplied with a standard "100A" domestic supply. The install was spread over 3 or 4 boards to accommodate various extensions/renovations over the years. There was in total 13 electric showers within the property ranging from 7.5 to 10.5kW! No reports of problems from the owners in the 5 years they'd owned the place![/QUOTE]

Hi resu,
I know this is an old thread, but I'm wandering what code you gave the property with 13 electric showers.
The reason I ask is I have been to quote for 7 bed guest house and they have 8 electric showers on one split board CU. supplied by 1 phase. Obviously I would codee C2 for overloading of each of the 63A rcd,s and the 100a rated main switch.

The dilemma I had was the customer asked if the showers are split between 3 boards would it comply. I feel no so would still give a C2 as the main incoming 100A fuse would be overloaded.

There is no visible sign of overheating inside the CU.

I have to make clear I am just at the quote stage and pointed this out to the owner as I was having a quick look to give him an estimate.

I have in the past split 5 existing showers in a guest house and gave it a C3 with a big statement/ risk assessment and advisory attached to eir.
But 8......

Octopus · May 6, 2018

C2 for the overload

1 CU , 2 CU's or 3 CU's - that is irrelevant/

Deleted account · May 6, 2018

Murdoch said:
C2 for the overload

1 CU , 2 CU's or 3 CU's - that is irrelevant/

Agreed, thanks murdock.

MDJ · May 6, 2018

Percyprod said:
I'm going to rewire my house, and was wondering if it's ok to have 2 shower circuits as well as cooker, sockets and lights off 1 cu, or would it be better to have 1 of the showers on a separate cu, because of the available water pressure the 2 showers are never on together.

You can put 145 shower circuits in if you like, just make sure your supplied load can cope with them, that aside, don't forget to allow the extra building work you need to be done now, might as well widen all those doorways in your house at the same time so your only making a mess once, at your age it won't be long before your wheel chair will get used more and more

Andy78 · May 6, 2018

I really can't believe anyone is actually indulging this attention seeking troll once again.

Resu · May 6, 2018

Paignton pete said:
Agreed, thanks murdock.

Yes, we coded it C2, along with a few other things!

They've recently sold up and the new owners have just had planning permission granted for a 14 bed extension. Hopefully they're planning a major overhaul of the existing part of the property too!

Percyprod · May 7, 2018

Must agree with Andy, this has been going on far too long, getting ridiculous, it was January when I first posted it. You obviously haven't got enough to do.