Customer has a set up using Electrak 63A under floor busbar, fed in 10mm armoured and backed up with a 63A c type mcb.
From this he has 32A unfused tap offs wired in 4mm in flexi conduit going to 16A rcd which then feeds 3.15A desk top supplies.
Am I right in thinking the 4mm feed needs protecting ?
I've not used or come across Electrak before so it seems odd to me that you can have a 32A 4mm unprotected supply tapped in to a 63A main supply.
From this he has 32A unfused tap offs wired in 4mm in flexi conduit going to 16A rcd which then feeds 3.15A desk top supplies.
Am I right in thinking the 4mm feed needs protecting ?
I've not used or come across Electrak before so it seems odd to me that you can have a 32A 4mm unprotected supply tapped in to a 63A main supply.
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