Hi Guys
I just wanted to confirm if 10mm2 wire is OK for mains use (60A). I noticed that my mains wires feeding into the mains 63A MCB is 16mm2, but from there feeding into the Earth Leakage again from the EL into the first breaker it is all 10mm2. Everything else seems fine though. 2.5mm2 for all plugs and geyser (20A MCBs), 4mm2 stove (32A MCB) and 1.5mm2 for lights (10A MCB). The house has had two different COC's done over the years by two different companies. My earth wire coming into the house is oddly 10mm2 compares to 16mm2 for the live and neutral.
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