Re: [89attendees] Mystery Power Outlet

On 03/03/2014 23:45, Adam Roach wrote:
> On 3/3/14 10:27, DRAGE, Keith (Keith) wrote:
>> Way back when I was at college, the power feed for the disco lighting
>> used to be an ad-hoc arrangement of 2 5A sockets through which we used
>> to regularly draw 30A, with no sign of them getting hot at all.
> 
> I thought I just read an assertion on this thread that the plugs are
> fused, and an inspection of outlets leads me to believe than many of
> them are as well. 

I doubt it. See http://en.wikipedia.org/wiki/Ring_main

The British system was actually designed around the end of WW II
during a time of copper shortage; a ring main reduces copper
consumption (as does a 230v system compared to 110v) but requires
fused *plugs* with a breaker back at the distribution board that
protects the ring as a whole. UK sockets are not fused, although
there will be an RCD breaker for any socket in the bathroom.

    Brian

Are the fuses required to actually kick out at some
> point?
> 
> On a side note, I'm a bit in awe that you were drawing on the order of 7
> kVA of power for your lighting. That's like 24,000 BTU/hr, expressed
> almost entirely as heat. You'd raise the temperature of an average 1000
> sq.ft. (92 m²) room by 27°F (15°C).
> 
> /a
> 
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