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Interconnects, speaker wire, power cords. Ask the Cable Guys.

Re: Melbourne, Australia....................

Here in Oz, a "normal" circuit for wall power points is 20amp ... 32amp is used for electric ovens, pool pumps etc. Do you have to use a 20amp circuit for these?

The NEMA rating of the receptacle determines the branch circuit size feeding the receptacle here in the US. The NEMA number dictates the voltage and ampere rating of the receptacle. It is a safety thing. You must have standards that are idiot proof. In other words a NEMA 5-15R receptacle shall only be connected to a 120Vac system with an equipment grounding conductor. If it is a single receptacle the overcurrent device, breaker, shall be 15 amp. If two or more 15 amp receptacles are installed on the same branch circuit then the branch circuit can be a 20 amp. Only a NEMA 5-15P plug will plug into the receptacle. If a manufacture builds a piece of equipment with a cord and plug he must meet certain requirements for the FLA, or VA rating of the equipment for the cord and the NEMA plug he uses.

Electric Clothes dryers are typically 30 amp 240Vac
Ranges can vary. 50 amp, 60 amp, 240Vac.
The receptacles and plugs will only plug into their mated others.


A NEMA 5-15R (15 amp recept) or a NEMA 5-20R (20 amp recept), at least here in the US shall not be connected to an over current device larger than 20 amps. That does not mean I can not install a bigger gauge of wire. Many here in the US will use #10 awg wire. The wire is rated for 30 amp. The breaker must still be 20 amp. The branch circuit is thus, a 20 amp branch circuit. Speaking for Square D QO breakers the current carrying contacts in side the 15, 20, and 30 amps breakers are the same. Only the magnetic trip mechanism is different. Cheaper to mass produce the product.


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  • Re: Melbourne, Australia.................... - jea48 15:24:14 12/24/06 (0)


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