Borrowed neutral question.

[Ponty Massive]

Oxo, I'm sat here with a smile on my face and giggling to myself. If you disagree with what I have said, then tell me why you think this is so dangerous by putting both circuits on the same MCB?

Also if the customer would not have you putting in new circuits....what would you do??

 

[Ponty Massive]

What you both said is "borrowed neutrals are not dangerous"and that is plain nonsense.

Where did we say that??????

 

[oxocube]

I'm sat here .... giggling to myself.

Why are'nt I surprised.

 

[oxocube]

Can't agree with that. In what way is it dangerous?

This was your response to post No 9.

 

[Ponty Massive]

Why are'nt I surprised.

Now who's getting abusive?

So can you answer my question or not??

 

[Ponty Massive]

Can't agree with that. In what way is it dangerous? I did a CU change a few days back. Explained to the customer about the borrowed neutral and how it would effect them. They didn't want the extra work and were happy to put both lighting circuits on one mcb. Made a note on the cert as to why I had done it!!!!!

I'm sure that's a lot safer than the old 3036 board they had before with a borrowed neutral over two fuses!!

You mean this one?

 

[oxocube]

What Ponty said was perfectly valid.

That means he agrees with you

 

[Rappid]

If the two circuits are put into one, the neutral is no longer "borrowed". I agree it may not conform to 17th regs with the inconvenience of two lighting circuits being placed on one circuit, however this is not a complete rewire, its a CU change! What's to say in this situation there wasn't a third lighting circuit which could have been placed on a different rcd?

Anyway, are you telling me if your customer didn't want to have their house pulled apart or go to the expense of putting new wiring in, you would not change the CU for them?

Is it not safer to have a CU with 2 lighting circuits on 1 MCB and RCD protection than having no RCD protection whatsoever??

 

[Knobhead]

For Christ’s sake never go in to industrial control. British industry is on it’s knees as it is.
50 fuses or MCB’s returning on a common 0V neutral bus isn’t uncommon, and I’m not talking ELV here.

 

[Knobhead]

That means he agrees with you

Yes I fully agree with Ponty I can’t make it any clearer!