Oct 09, 2014 7:28 pm
My son has a new house and he is installing a Garden Spa (15amp plug) and he also wants to runs a small water feature and a 12 volt lighting transformer from the same 4mm cable. He has purchased a 15amp GPO for the Spa and a 10amp GPO for the other items. We have had to do a major excavation under a limestone retaining wall to get the cable ready to connect to a junction box and from that same single cable we proposed to run cable to the two GPO's. A man at Lawrence and Hanson has suggested that he needs a separate cable for the 10amp GPO. Please can you advise if this is true, I think that the current draw on the garden water feature and lighting transformer are not going to be very much.
He has installed a 16amp circuit breaker in the meter box.
Re: Spa cable used for additional GPO?2
Oct 11, 2014 10:03 pm
Although Im not a sparky, from a standards-perspective, I suspect the intended use of a GPO is irrelevant. If its not hardwired to a device, then the supply cable must cater for the theoretical load, which could be over 16A in your case. ( 16A + 10A?) Maybe using 32A cable to the 16A outlet would be allowed? However if youre willing to break the rules, from an electrical viewpoint, there should be no problem whatsoever running an extra 10 or 20Watts from the single cable. But I wouldnt want to see what might happen if you decided to run your spa and a 1KW heater on the 10A GPO at the same time.
Northern Adelaide, Format Homes '16-'17 after failed Bondor OB
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