mfarrow, are you saying that a spur from a ring final including when originating from the consumer unit should be less than 3 meters?
Until of course you have a MCB or fuse which of course is there in a plug.that's only ONE section of 434 and the one that deals with the placement for the device for fault protection at that....
and your reading of the other reg is also flawed..
has neither branch circuits nor outlets for connection of current-using equipment
the important word there is NOR...
this means that the outlets don't HAVE to be on the branches....
mfarrow, are you saying that a spur from a ring final including when originating from the consumer unit should be less than 3 meters?
On a ring, it can be as long as possible or as you like and it's covered by 433.1.5.
I you want to add a single socket outlet/FCU to a spare 32A breaker in the board (i.e. no ring in there) then you're limited to 3m by 433.2.2(ii).
mfarrow, are you saying that a spur from a ring final including when originating from the consumer unit should be less than 3 meters?
On a ring, it can be as long as possible or as you like and it's covered by 433.1.5.
I you want to add a single socket outlet/FCU to a spare 32A breaker in the board (i.e. no ring in there) then you're limited to 3m by 433.2.2(ii).
Until of course you have a MCB or fuse which of course is there in a plug.
What would be the point in any cable if it does not carry current? Comparator can't think of any other cable without current?
All you need is clause (i) – the 32A mcb needs to provide fault current protection but does not have to provide overload protection. So you need to check that the let through energy of the device does not exceed the withstand of the cable.
Don't forget 434.2.2 and 434.5.2
there are "red plugs" on some equipment that require more than 13A, although to date I've only seen these on mobile x-ray machines..
however that doesn't stop joe public from bypassing a fuse in the plug.. such as the fabled tinfoil round a blown fuse or the often seen on here drillbit in a socket..
I've even known people with welders to use a welding nozel in the fuseholder to stop the 13A fuse from blowing..
then there's always the method of just swapping the live pin in a plug for a spare neutral pin and wiring direct..
GaryMo said:If not then what's the difference?
The only difference is that double sockets are only permitted as spurs off ring mains, and cannot be fed off a spur from a 32A breaker not forming part of a ring main.
The only difference is that double sockets are only permitted as spurs off ring mains, and cannot be fed off a spur from a 32A breaker not forming part of a ring main.
Why though, what's the difference between there being an extra two conductors in the same terminal?
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local