The Ring is dead, long live the Radial!⚡

[Scolmore]

The Ring is dead, long live the Radial!
When wiring socket outlets do you:
1. Use ring final circuits
2. Use radial circuits

 

[Midwest]

There is a very strong requirement here for dead testing before the circuit is energized, both for a full installation and for simply adding a new circuit to an existing system. That applies for domestic, commercial and industrial stuff.

Not just IR testing to see if the cable is OK, but also testing R1+R2 (live and earth resistances) both to verify socket & SP switch polarity, and also from the boards Ze (earth loop impedance) to check the circuit's Zs value is going to allow fast enough disconnection by the choice of fuse or MCB, etc.

Me thinks they do things slightly differently in the US. Might be wrong.

 

[telectrix]

Me thinks they do things slightly differently in the US. Might be wrong.

USA use the tried and trusted 3fold Test. .
1.it works.
2 it not work.
3. it goes bang.

first 1, fine.
2nd one call supervisor.
3rd one run away.

 

[Maji236]

USA use the tried and trusted 3fold Test. .
1.it works.
2 it not work.
3. it goes bang.

first 1, fine.
2nd one call supervisor.
3rd one run away.

Pretty much, yeah.

 

[Paul Maughan]

Radials are usually quicker to install and quicker to test - so cheaper on labour, material wise breakers are same price and cable works out about the same or actually cheaper without the return leg.(Eg 30m of 4mm or 60m of 2.5mm) I do mainly commercial and use 25a 4mm radials a lot for runs along store walls etc. Also wiring rings in singles in containment is a massive pain to keep the right “leg” together and also twice as many drums to get tangled up and wrapped round your ladders ? rings have there place still, probably make more sense in houses and offices kitchens etc

 

[LukeD]

When we buy a house later this year .I am doing a radial rewire . Might mean a huge consumer .But if possible will make every room radials etc

 

[telectrix]

When we buy a house later this year .I am doing a radial rewire . Might mean a huge consumer .But if possible will make every room radials etc

my preference is rings for kitches/utility rooms. 2-3 radials for rest of house. (average house, not a mansion).

 

[brianmoooore]

I built and wired my own house around forty years ago. If I could go back, with what I know today, each kid's bedroom would have had its own radial and MCB.

 

[pc1966]

When we buy a house later this year .I am doing a radial rewire . Might mean a huge consumer .But if possible will make every room radials etc

All socket circuits fitted with £150 AFDD as 18th Amendment 2 is looking like?

 

[LukeD]

All socket circuits fitted with £150 AFDD as 18th Amendment 2 is looking like?

"It was like this when we purchased it " !

 

[Dustydazzler]

You can now buy an afdddddrcbbbbo for £149.99

 

[7029 dave]

I built and wired my own house around forty years ago. If I could go back, with what I know today, each kid's bedroom would have had its own radial and MCB.

And coin meter ?

 

[ipf]

You can now buy an afdddddrcbbbbo for £149.99

Then a power surge and everything’s goosed? ?

 

[static zap]

USA use the tried and trusted 3fold Test. .
1.it works.
2 it not work.
3. it goes bang.

4 If you are lucky something smells funny ,
and the AFDD has tripped.

(no, was just customer breaking wind when heard price.)