Fred W B
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| posted on 2/6/10 at 08:09 AM |
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Domestic extension cable gauge?
In the kitchen department.......
What gauge cable should I use to make a 4 meter extension cord for a domestic 3400 watt appliance?
Cheers
Fred W B
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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Guinness
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| posted on 2/6/10 at 08:15 AM |
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HTH!
   
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nitram38
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| posted on 2/6/10 at 08:17 AM |
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Based on 230V, your current is over 14 Amps.
Even if you buy a suitable sized flex (probably 2.5mm) the max fuse size is 13A so you will be replacing the fuse alot!
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Fred W B
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| posted on 2/6/10 at 08:20 AM |
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Its a mini oven, so that rating would only be with both plates and the oven going flat out, which won't happen in practice
Here we use 20 amp circuit breakers on plug circuits
Cheers
Fred W B
[Edited on 2/6/10 by Fred W B]
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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tegwin
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| posted on 2/6/10 at 08:22 AM |
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Most large domestic appliences should be hard wired into the wall on a suitable isolater... these are normally fed directly from the distribution
board on 30A cables...
4mm squared would give you 32A
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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MikeCapon
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| posted on 2/6/10 at 08:23 AM |
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I'm not a sparky but I am doing a lot of this sort of stuff at the moment. I'd run 2.5mm˛ direct from the fuse box on its own 20A circuit
breaker.
HTH
Mike
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mangogrooveworkshop
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| posted on 2/6/10 at 09:53 AM |
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South Africa has no fuses in the plug tops and they are round pin 15A. None of the pansy power plugs that we have here.
Only one big difference here in the UK the power stays on almost 99.999999% percent of the time
out there its the ESKOM lottery.
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greglogan
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| posted on 2/6/10 at 09:54 AM |
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appliances over 2.5kw are normally hard-wired via a 20A DP switch usually back to a dedicated MCB (breaker) at the board. 2.5mm sq cable will run it
but not via a plugtop as it WILL overheat and (hopefully) blow the plugtop fuse. Beaing in mind that the plugtop and socket are only designed to carry
13A also.
Women are meant to be loved, not understood.
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Fred W B
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| posted on 2/6/10 at 11:10 AM |
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Thanks for the responses all.
quote:
out there its the ESKOM lottery.
not been at all bad lately - Got to keep the lights on for the world cup.
Cheers
Fred W B
[Edited on 2/6/10 by Fred W B]
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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Confused but excited.
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| posted on 2/6/10 at 11:30 AM |
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quote:
Originally posted by MikeCapon
I'm not a sparky but I am doing a lot of this sort of stuff at the moment. I'd run 2.5mm˛ direct from the fuse box on its own 20A circuit
breaker.
HTH
Mike
Perhaps you shouldn't be.
[Edited on 2/6/10 by Confused but excited.]
Tell them about the bent treacle edges!
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MikeCapon
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| posted on 2/6/10 at 01:19 PM |
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quote:
Originally posted by Confused but excited.
quote:
Originally posted by MikeCapon
I'm not a sparky but I am doing a lot of this sort of stuff at the moment. I'd run 2.5mm˛ direct from the fuse box on its own 20A circuit
breaker.
HTH
Mike
Perhaps you shouldn't be.
[Edited on 2/6/10 by Confused but excited.]
Why? Have I made an error? 2.5 cable should be more than adequate and a 16A breaker may be a little short. A 32A breaker should not be used with 2.5
cable so I can't see where the mistake is?
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JoelP
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| posted on 2/6/10 at 08:03 PM |
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^^ you would be fine unless it was a long run, or subject to a derating factor. 2.5mm t&e cable surface clipped is rated at 27A over a specified
distance.
Beware! Bourettes is binfectious.
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