form filling

[BristolSpark]

Hi

I am farely new to form filling so forgive me. I have split the incoming supply in the house so now it feeds to the original CU and a supply now goes to a main switch BS 60947 and rccb enclosed in a unit. This now supplys out to a garage enclosure, which feeds lights and sockets.

Is it best to complete a certificate for the out going supply from the house. which is only a main switch and rccb

Then complete a cert for the supply in the garage. which would be RCCB and two out going mcb's

 

[markc123]

What have you done about the earthing arrangement?

You'll EIC the garage...

 

[BristolSpark]

I upgraded the house to 16mm. there is 10mm t&e feeding out to a box on the wall, where 10mm swa runs around the garden to the garage so its all earthed from a - b and I have the braiding eartherd on the swa too.

So you would not recommend the two certs then. Just the one for the garage only.

 

[SirKit Breaker]

If you have split the supply after the cutout fuse and before the main CU main switch (Henly block fashion) then you need to include a switch fuse within 3 metres of the cutout fuse, and at a rating below which a 10mm cable will handle after taking any derating factors into consideration. Certs are the least of your problems, or have i read it all wrong?

Cheers...........Howard.

 

[HandySparks]

One EIC with two schedules of test results; one for the distribution circuit and one for the garage board. I can see this becoming a Friday evening popcorn thread, given the apparent lack of overcurrent protection to the distribution circuit and the two RCDs in series.

 

[telectrix]

either a switch fuse or fit a 50A MCB next to that 60947-3 and 61008 to protect the 10mm. don't fit another RCD in the garage.