Radial circuit

Is it a metal board if so use 20mm gland

 

Feed it into any position you like, top, bottom side or rear. No need for gland if it's t/e, personally I often use closed grommets with a suitable sized hole as the open ones do tend to leave a rather large gap around the cable.

 

New circuit!!! no testing , building regs ect!!!????

 

With respect Nigel, tore was asking about entry to board, nothing more.

 

20amp would be more expected. I don't know what this fascination with 16 amp radials is.

I'm sure you come in from above if you try.

 

I sometimes use a 16 amp mcb on a 2.5 radial final Lec - even though a 20 amper is more the norm..

 

Hi lec. Is it a historical thing perhaps - from the 15A re-wireable radial? Seems daft thou on a cable rated for 26A

 

Yeah, 16A is good, but 32A is better. Loads of power AND the hot cables will heat your house. MASSIVE bonus mate!

 

Yeah blind grommet far better option than a gland

 

Standard socket circuits.

A1 - Ring - 32amp - 100m/sq
A2 - Radial - 32amp - 75m/sq
A3 - Radial - 20amp - 50m/sq

Why use a 16amp when a 20amp would be perfectly fine and expected? You don't put a 25amp on a ring "because it's plenty".

 

16A MCBs/RCBOs seem to be a lot more readily available then 20A ones.

 

Yes I've found that to be the case too Peter, never had any problems with the 16a circuit's I've installed.

 

I don't find that, wholesalers stock every flavour.

 

I don't see the fascination with the 20A circuit breaker on a radial......If the design current of the circuit allows for a 16A circuit breaker then a 16A circuit breaker is fine.

 

How can you be sure of a design current for socket circuit? You should be providing as much as the circuit will allow. Pointless not to.

 

I've installed countless 16A radials at not once had to go back and swap it for a 20A circuit breaker.....What do you think the likely hood of a 16A radial with four sockets that you've designed/installed for a TV, sky box and alarm clock tripping due to over load is?

 

Why not put a 6amp on it then? You wouldn't would you.

 

No I wouldn't as to allow a little more scope for additional/unexpected equipment to be plugged in.
I very much doubt my entire house pulls 16A most of the time let alone a radial with four sockets on it.