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Thanks for the replyreplacing like for like, just thought I'd do a quick Ze, IR and check the RCD and noticed the the 1.5 in the B32.
Discuss 1.5 mm T&E on a B32 MCB in the UK Electrical Forum area at ElectriciansForums.net
Thanks for the replyreplacing like for like, just thought I'd do a quick Ze, IR and check the RCD and noticed the the 1.5 in the B32.
That is all true but very close the knuckle.1.5 is the minimum for a power circuit, if the only thing connected is a fused spur then it can't pull no more than 13A. If the installation method permits adequate CCC and the CSA is adeqate for fault current/thermal constraints under fault conditions then technically there is nothing wrong with it.
Nope, that's going to take me much more research to figure out.Hager let through energy on a 32 amp mcb type B is 29kA so in this case the 1mm cpc for the 1.5mm twin and earth cable would be undersized and inadequate for fault protection.
I2t would be greater than the K2S2 of the cable.
For faults on current limiting devices such as bs en 60898 devices under 0.1 of a second then the I2t let through energy needs to be sought for compliance that the K2S2 energy withstand of the cable under fault conditions and thermal constraints is greater than the let through energy quoted by the manufacturer.Nope, that's going to take me much more research to figure out.
If it is an up to date of the shelf MCB for the extra cost to the customer this can be the safest option or disconnect with permission.Or change it for a 6Amp cb
In the absence of a connected load there cannot be a voltage drop.VD works out at 2.02% so ok
Assumed 13amps worst case scenario for the FCU.In the absence of a connected load there cannot be a voltage drop.
Hager let through energy on a 32 amp mcb type B is 29kA so in this case the 1mm cpc for the 1.5mm twin and earth cable would be undersized and inadequate for fault protection.
I2t would be greater than the K2S2 of the cable.
Hager let through energy on a 32 amp mcb type B is 29kA so in this case the 1mm cpc for the 1.5mm twin and earth cable would be undersized and inadequate for fault protection.
I2t would be greater than the K2S2 of the cable.
Reply to 1.5 mm T&E on a B32 MCB in the UK Electrical Forum area at ElectriciansForums.net
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