Discuss Connecting Dual RCD board. in the Electrical Forum area at ElectriciansForums.net
The OP is a newly qualified electrician I believe.Hate to be that guy but - get an electrician in to do it.
I don't understand how he's here asking how to get tails into a CU into the bottom of the main switch. No offence OP.The OP is a newly qualified electrician I believe.
But how would a qualified electrician not know how to do that? Not bashing him, just confused.maybe OP is talking about the internal links to each RCD .
I wonder if, and again no offence OP, he did a shorter course or something?As I understand it, the OP is newly qualified… maybe doesn’t know how CUs are supplied, whether had to build them from scratch, buy them populated or part populated… split board etc. Lot to think about if you haven’t done them before.
At least he’s practicing in his own house.
Probably an industrial or commercial spark who though it would be easy cause its only a bit of house bashingI wonder if, and again no offence OP, he did a shorter course or something?
I think you'll find they should go into the bottom of the main switch, otherwise it'll still be live when you turn the main switch off ?They should go to the top of the main switch.
Yes I misread the opening post I thought he was referring to the supply conductors.I think you'll find they should go into the bottom of the main switch, otherwise it'll still be live when you turn the main switch off ?
That is a good thing, as you might want to shuffle the loads around, but...A couple of issues. The busbar needs cut. Comes as a 15 way and needs to be 2x 6…
<= this is absolute crap!but as you can see here, the RCDs are physically deeper than the MCBs, so the bus at sits at a slight downhill slant.
This in turn gives all the breakers a slant and it’s near impossible to get the cover back on.
I'm unlikely to be fitting domestic CU but this has been very informative as a reason not to go with ones of these.Secondly, one of the 16A MCBs is faulty, doesn’t click on.
Third. The 35mm knockout for a tails gland is below the RCD. Would have made sense to put it on the right where there’s plenty space.
Just me. I like to push the busbar as far up as I can, thinking the terminal gets the best grip. I suppose I could set it directly horizontal.the reason the busbars slant is if you push them too far into the MCBs. i never had any trouble with BG.
Not a bad design overall the dual RCD boardAs luck would have it, I just fitted a BG board that the customer had supplied.
Populated split RCD board, 10 way (5+5)
You can just about see how the internal connections are made.
View attachment 90346
Note the ferrules crimped onto the ends of the internal links.
A couple of issues. The busbar needs cut. Comes as a 15 way and needs to be 2x 6… but as you can see here, the RCDs are physically deeper than the MCBs, so the bus at sits at a slight downhill slant.
This in turn gives all the breakers a slant and it’s near impossible to get the cover back on.
Secondly, one of the 16A MCBs is faulty, doesn’t click on.
Third. The 35mm knockout for a tails gland is below the RCD. Would have made sense to put it on the right where there’s plenty space.
Reply to Connecting Dual RCD board. in the Electrical Forum area at ElectriciansForums.net
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