Anyone see a problem here?

[Hawk81]

Came across this board today while looking for a fault on the supply to electric gates. The house is only 2 years old. It was wired by an NICEIC domestic installer. The 32amp MCB's are for ring mains circuits.

 

[andekoch]

1 - is that 2.5 into the last 32A? - nice
2 - lot of rings and load on the RCCD. hope the diversity calcs have been checked. may just be for convenience but still are they really needed to be 32A then?
3 - better to put larger breakers closer to the origin ie make the 16A the furthest from the RCCD.

 

[SirKit Breaker]

Did you find the fault?

 

[james king]

it looks to me they are using 2.5 for the incomer in to the rccb maybe my eyes though

 

[Hawk81]

I did find the fault I was initially looking for. But you are all missing a big obvious problem. And no that is not 2.5mm feeding the rccb

 

[SirKit Breaker]

If it is domestic the RCD needs to be 30mA not 100.

Do i win free beer for a week?

Cheers..howard

 

[Phil]

is it the only board in the house? mcbs for lighting circuits etc, 100ma rcd but no 30ma, no segregation of circuits

 

[andekoch]

go on then tell us. what cant i see in the pic.

 

[SimpleSimon]

It could be my eyes but are none of the screw terminals for the cables tightened?
If not I'm going with Howard.

 

[Hawk81]

Not only is it 100mA but it is S type. This was a split load board. All sockets were on this side. The other side with lights and cooker ect had another S type 100mA. The whole place was a joke. The incoming suply is TT and at the main meter the guy has an 100 amp main switch, come out of it are 2 16mm split cons. 1 goes to the garage which is a run of about 5 meters. In the garage board there is no RCD protection at all. The other split goes on a run about 25 meters to the house. In the house I had a quick look at a few things. Downlights in the kitchen and bathroom have no joint boxes just choc block connectors. The list goes on.

 

[james king]

any thing wrong with connectors? other than bad practice??? even if taped up?

 

[nickblake]

building is very dark at night , where are the lighting circuits , 100 ma RCCD 400 volt breakers

 

[Hawk81]

any thing wrong with connectors? other than bad practice??? even if taped up?

Yes it is against reg 526.5

 

[james king]

so why do down lights all come with connector blocks attached?

 

[andekoch]

overzealous type S usage and completelly forgot the 30mA requirement seems to be the case. Must be too late seeing as I commented on the 80A but ignored to comment on the more obvious type S and 100mA, cant see the wood for the trees syndrome or just late. good one. customer probably couldnt see a problem with anything on your list just to anoy you saying "but it is new" or something like that.