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CU unit and associated wiring where the RCCB is tripping.

We are extending into the basement and the electrics have been done by a electrician to building regs. They have split the main feed and put another CU downstairs. I will take some pictures and post them later.

I have no idea why this is so as I'm no electrician (although I have been reading the the usual practice is that the RCCB protects just the sockets). When the RCCB trips, we loose all power on all circuits - lights, sockets and cooker. The consumer unit was put in many years ago when my partner...

I believe this to be the case with our system. this is the second RCCB we have gone through in about 8 years. Originally it tripped when the cooker was used so we replaced RCCB and no more problem. We eventually replaced the cooker as well and up until recently all had been working fine. Then...

Ok, lets see if this works I hope that you get the gist. There are two sketches - one plan, one 3D. The access road is around 15" above the foundations on the left side (looking at the sketch) yet drops slightly below the top of the footing at the right side. Due to the nature of the...

It is not quite as easy as that. The ground and access road have a relatively steep gradient. The slab will follow this gradient to provide run off but cannot be as exaggerated. The net effect of this gradient is that the foundation is almost exposed at the lowest point but nearly 1.5' below...

Interesting - I have a feeling I came across this site a while back. Unfortunately, I have not heeded it advice as it looks as though the wall foundation and slab should be laid together, which cannot now be done. I will have to lay the slab over the existing foundation but will separate them...

Hi all, I have somewhat of a dilemma. Our house backs onto an access lane and we want to build a garage/car port to take advantage of this. The area available to us is approx 4.5m x 5m, and a concrete foundation has already been laid around this perimeter. The slab itself would need to come...