just a thought, what output is the shower? is the switch a square 40A one? wouldn't be the first i've come across with a 10.5 Kw shower on a 40A pull switch and yes they are usually toasted!!
Secure
I understand now. Yes they work as they should on x1/2, x1 & x5
Tests as said it was questioned by a couple both I believe are trying it on to lower the offer price! Final full tests to be done when i have time.
Bas
Firstly I am the builder and the electrician on the project and I have done it by the book butbecause 2 different buyers builders have made snide remarks I asked here to see if I might be wrong I am not perfect like the "keyboard experts" that have to pop up on here !
No the extension...
the issue is that each time Father in law gets a buyer some jumped up little prick builder comes looking for faults (that don't exist) puts the fear in the buyer who then backs out! happened 5 times so far but only twice has the elecs been questioned.
I want to be able to say with certainty it...
the 63A is in the main house CU supplied from a 100A isolator switch with 2 6A lighting circuits on the same busbar separate RCD 30Ma has the 2 socket circuits and a cooker circuit in the same box
this feeds CU 2 in the extension
the 2nd has a 100A iso and 2 x 63A 30Ma RCD's supplying the...
correct the boiler is dual powered and has a high 32A input for the heat element (10mm T&E) and a low 5A for controls (2.5 T&E) and is clearly marked as having 2 power sources
I don't need to pay for the EICR as I can do it. the question was what if anything is incorrect in the install as I believe it is correct although close to limit on the 63A MCB - 2nd CU via the 10mm cable. I'm confident that it is safe and within limits but looking to see what others think. have...
thanks yes I thought the 63A was a tad close and yes it is a type B MCB as I stated
the chances of everything ever being on load is highly unlikely and it has never tripped in 2 years
yes it needs signing off hence trying to get the definitive answer as its my father in laws place we built...
the "sparks" were both associated with builders!! need I say more! both were invited round by 2 separate buyers the first buyer has backed out the 2nd is iminant!! its a house connected to family and i'm not 100% sure on whether its right or wrong (only part qualified myself and not come across...
So having looked up the onsite and the main 7671 books I cant find an answer!!
scenario
main house 2 consumer units 1 normal 10 way and an economy 7 cu separate.
then a 2nd CU supplied from 1st in an extension and a 3rd supplied from 2nd in a shed
the 2nd one is the one in question...