Can you take a spur from a 15A radial?
- Thread starter JAmmmmm
- Start date
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Yes. But it won't be a "spur" as that applies to ring finals.
Probably a "branch"..
Probably a "branch"..
H
holmslaw
..
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If the 15A protection is a semi-enclosed fuse, you could replace it with a 20A CB. I think you can run as many sockets as you like from a 20A radial as long as the area is less than 50m². I don't KNOW if it makes a difference having 15A semi-enclosed fuse or 20A CB. A 15A fuse might pass a bit more than 20A indefinitely, so a 20A CB is actually de-rating slightly.
Have a look at the definition of a spur in the current Regs and post up what you find.
YES.
H
holmslaw
..
Have a look at the definition of a spur in the current Regs and post up what you find.
Ahh yes, I see they have changed it in the 17th.
The 16th defines a spur as a branch from a ring final.
I must try and keep up
However, I see that IET has introduced the term "branch" but has not seen fit to define what a branch might be.
Move along, nothing to see here
my understanding is that the difference between a branch from a radial and a spur from a radial is that a branch has the same rating as the rest of the circuit and can support as many accessories as desired while a spur is lower rated under the same principles and rules as a ring spur.
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