PIV electrics

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17 Oct 2007
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Anglesey
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I want to install a Nuaire Drive Eco Heat HC in my attic. It incorporates a 400w heater.
I have a socket in the attic so can I just plug it into that or do I need an electrician in?
 
If it isn't already, consider changing the socket for a double, or adding an FCU, so that if you ever need to use the socket you don't have to unplug the thing.
 
Not for the first time the manufacturers are wrong. What happens when they sell the equipment overseas where there are no fused plugs? Just because the manufacturers are wrong there is no need for you to repeat their mistakes.
 
Perhaps their overseas customers are satisfied with a lower level of protection than is expected in the UK?
It's not really down to the customers, is it? It's not the customer's who make the rules in Britain or anywhere else.

This has only come about because of the peculiar ring final used in Britain which made it necessary to fuse down - apparently.
Thinking that the population is more cared about in Britain is being rather naive, especially up to the end of the war or do you believe it was the Atlee Government who thought lower rated fuses would help the people along with the NHS?
It is now getting to the stage where new rules are invented seemingly only to preserve jobs.


Does anyone know why 13A was chosen?
As the modified circuits would previously have been protected by a 15A BS3036, this effectively means it could have been a 20A BS1362 to offer the equivalent protection (or at least the same 15A).

Following that, why was it considered necessary to fit other rated fuses in the plug - or did it just happen because there were such things - as John does?



I think it must be accepted that if the rest of the world does not find it necessary, then it isn't really necessary.
 
It's not really down to the customers, is it? It's not the customer's who make the rules in Britain or anywhere else.
Perhaps I should have said that overseas societies are satisfied with a lower level of protection than is accepted in the UK. As I've stated previously, I was once told by one of the engineers responsible for the design of the UK ring final system, the original brief for the Working Group was to design the safest final distribution system in the world.
Following that, why was it considered necessary to fit other rated fuses in the plug
To provide closer protection to the appliances that are connected to that installation.
I think it must be accepted that if the rest of the world does not find it necessary, then it isn't really necessary.
I'm not sure where my statistics on the subject are - probably in the attic, where they'll stay until a paying client wants me to find them - but ISTR that the UK had a far lower incidence of reported fires of electrical origin than any other developed country. And yes, I know that the cause of fires is not always determined precisely so the absolute accuracy of those statistics is doubtful, but I would expect the inaccuracies to be similar in other countries, so the figures are comparable.
 
To provide closer protection to the appliances that are connected to that installation.

No. It was stated from the outset that the fuse is to protect the cable, not the appliance.

At the time smaller rated cables were allowed. A 13 amp fuse would be too big for 7/0076 cable which I had on an Antex soldering iron.
 

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