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

 

[Mike Johnson]

You must be thinking of the Italians.

As the regulation restrict the amount of MCB's per RCD (eight) and the requirement to have separate radials for most white goods and other items the amount of RCD's soon mount up and lets face it we in the UK where very late in realising we should have two.

 

[Andy78]

In the interests of equality and diversity what about white pudding

It ain't bad, but never see the stuff in shops round here.

 

[pc1966]

all tasres maybe, but not the vegans. they originate from the planet Vega and are aliens beyond our comprehension.

I did know a lady who turned vegan who was quite tasty. No Chianti, before you ask...

 

[ipf]

4 RCDs??? similar to the number of reverse gears on their 1940 tanks.

Wouldn't have made any difference anyway, the Gerries were behind them as well.....so much for the magnificent Maginot line.....we'll just go round it.

 

[telectrix]

Wouldn't have made any difference anyway, the Gerries were behind them as well.....so much for the magnificent Maginot line.....we'll just go round it.

Maginot Line was a waste of time. they should have built it as a ring, not a radial.

 

[telectrix]

Maginot Line was a waste of time. they should have built it as a ring, not a radial.

see what I did there. brought the thread back on topic.

 

[ipf]

Maginot Line was a waste of time. they should have built it as a ring, not a radial.

Well at least there was a strong Resistance, must have been a circuit of some sort.

 

[telectrix]

Well at least there was a strong Resistance, must have been a circuit of some sort.

you need to speak to Rene about the resistance... listen carefully. I shall only say this once.

 

[ipf]

you need to speak to Rene about the resistance... listen carefully. I shall only say this once.

Only ‘wernce’. You’re itching for the Madonna with the big boobies.

 

[Mike Johnson]

"Good moaning" "You stupid woman, I was giving her the kiss of life"

 

[ipf]

Still undercover, I see, Mike.

 

[davesparks]

Aye, what about a cooker unit with socket outlet?

That is exactly what I was thinking of

 

[Maji236]

Are you mistaking multimeters for the Multi Function Testers (MFT's) we use for installation testing, we still use the standard multimeters but these are not capable of carrying out the tests needed to verify an installation

You've got a good point, can't do a megohm test with a multimeter.

To be more specific, as an electrician (installer), we're not required to do these loop tests, megohm tests on houses, last I knew anyway. I have been required to do these in factories for certain circuits as well as for feeders. On some jobs, ie: power plants, chip fab plants; we did have crews "commissioning" EVERY circuit, including feeders.

 

[stevethesparks]

Might have been nice having a response from the original OP

 

[pc1966]

You've got a good point, can't do a megohm test with a multimeter.

To be more specific, as an electrician (installer), we're not required to do these loop tests, megohm tests on houses, last I knew anyway. I have been required to do these in factories for certain circuits as well as for feeders. On some jobs, ie: power plants, chip fab plants; we did have crews "commissioning" EVERY circuit, including feeders.

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.