Is it a plastic DB or metal one?I wouldn’t really worry about the back board being flammable, it’s probably less so than the plastic DB.
Discuss Rear entry three phase board in the Commercial Electrical Advice area at ElectriciansForums.net
Is it a plastic DB or metal one?I wouldn’t really worry about the back board being flammable, it’s probably less so than the plastic DB.
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Buy that.... Gland your swa in the top of the board properly, jobs a gooden...
Have you factored in the ccc for those tails in the trunking?
Usually, you would have an MCCB board with meters in the outgoing all in the landlord's cupboard.?
The supply company feeds a meter, then it goes to the 1st board which feeds 4 sub boards, there is a meter before each sub board. The 4 sub boards are protected by 63A 3 pole CB's I said RCBO by mistake.
I would of done as Adam posted with the incoming SWA if you have to have that meter at that position would have been a trunking down the RHS SWA made off at top end cap then T off like you have done for the meter.All the circuits from the board i installed will be RCBO protected
You would have made off the SWA to the end cap of the trunking?Are all the outgoing circuit RCBO protected?
I would of done as Adam posted with the incoming SWA if you have to have that meter at that position would have been a trunking down the RHS SWA made off at top end cap then T off like you have done for the meter.
If there is a fault on one of the final circuits you would want the MCB to trip faster than the MCCB. A practical example of this I recall was one of the final circuits we installed the chippy put a nail through the cable now as we had a low ELI it took out the RCBO as well as the existing 50A MCB protecting this D.B. bad discrimination ( sorry selectivity new word)How would a MCCB prevent such an event?
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