Re: How much current safe for 30m extension?

ehsjr_at_bellatlantic.net
Date: 02/12/05 

Date: Sat, 12 Feb 2005 16:26:31 GMT

Ian Stirling wrote:

>In uk.d-i-y Sammo <noone@no-where.com> wrote:
>
>
>>I am in the UK (so mains voltage is about 230V or 240V).
>>
>>I have a reel of main extension cable made of 3-core 1.0 mm^2 wire
>>rated at 10 Amps. So the nominal power rating would be about 2,400
>>Watts. (Link to tech reference for the cable is below.)
>>
>>
>
>It's always going to be safe, as it's got a fuse.
>
>
>
I suppose you mean the wire won't melt. Other safety issues
come into play - the device at the far end may fail due to voltage
drop. In some cases it could conceivably burn. Hardly safe if that
happens. The job of the fuse is to protect the wire from
overcurrent, but there is a lot more to safety. Psooible need for
RCD, protection from damage, supporting the wire etc all may
come into play.

Ed

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