12v from 240v no neutral?

[chcnorris29]

Hello,Was told this today and am wondering if it is correct.If you have 240v ac and do not use the neutral then you get 12v ac?Thanks

 

[Marvo]

You're going to have to explain your question a bit better I'm afraid.

 

[MDJ]

Hello,Was told this today and am wondering if it is correct.If you have 240v ac and do not use the neutral then you get 12v ac?Thanks

Gasp!!!!!

 

[Guest111]

referenced to what?

 

[Sintra]

So you have 240V between live and neutral and 12V between live and what?

 

[davethsparky]

:21::stupid::21::21::ban:

 

[MDJ]

So you have 240V between live and neutral and 12V between live and what?

Next doors fence LOL

 

[chcnorris29]

I was told by a spark i am working with, that if you only use live and earth then it gives 12v ac. so it can be used to find fault on lights, if you only get voltage of 12v at non working light then it means there is a missing connection on N. He says it has been used for an install before on an old "Hot and not" heating system where the system is a "no volt" system but some of the stats used needed 240.

 

[Marvo]

I was told by a spark i am working with, that if you only use live and earth then it gives 12v ac.

Okay, either your sparky friend is trying to kill you or maybe you misunderstood something.

Are you a trainee or apprentice? If so we have a special forum area for trainees where there's mentors who can help you with your studies.

 

[Guest111]

You and your friend need to go to college,live to neutral = 240 live to earth = 240

 

[chcnorris29]

I am an apprentice yes. I did not believe what he was saying as I do not see how this would work without a transformer, this is why I was checking here.Thanks

 

[Sintra]

I am an apprentice yes. I did not believe what he was saying as I do not see how this would work without a transformer, this is why I was checking here.Thanks

Have you ever heard of a wind up cause I think that's what he is doing to you.

 

[7029 dave]

earth and neutral are combined what voltage do you think?

 

[7029 dave]

Have you ever heard of a wind up cause I think that's what he is doing to you.

but a dangerous wind up!!

 

[chcnorris29]

I am in college and have always been told that it is 240 from l - E so did think he may be taking the ****. Just wanted to check.

 

[DJ Ovengloves]

So do you mate....it's 230v nominal voltage here bud

You and your friend need to go to college,live to neutral = 240 live to earth = 240

 

[chcnorris29]

230 V ± 10% at 50 Hz. so can be 240.

 

[Marvo]

I am in college and have always been told that it is 240 from l - E so did think he may be taking the ****. Just wanted to check.

What course are you doing and what college are you at?

 

[chcnorris29]

Apprentice, C&G 2357. why?

 

[Marvo]

230 V ± 10% at 50 Hz. so can be 240.

I think after the question in your opening post discretion would be the better part of valour.

- - - Updated - - -

Apprentice, C&G 2357. why?

See here.