Low voltage between live and neutral

[Marks Electrics]

Hello, ive just been to look at a job with a light not working, after checking found voltage between live and neutral is 170v, between live and earth is 230v, is it just a case of a neutral issue, eg, loose connection, water ingress any suggestions would be great, cheers

 

[Toneyz]

I think one of the lighting switch wires may be wrong and the lighting circuit is in series (volt drop accross lamps giving you 170v)

 

[Richard Burns]

I would say it was a loose neutral.

 

[Octopus]

I would say a lost neutral!

 

[telectrix]

agree with both above posts ^^^^^^.looose, lost, corroded, worn out, tired, knackered, over the hill, neutral.

 

[sparksburnout]

Now Mark, forgive me if I am being a bit obtuse, but your profile says you have done an inspecting and testing course? This sounds like just the sort of thing you should be relishing, not asking for help on here surely? After all, I presume this customer of yours is paying for your services? And you do have a HND?

 

[Octopus]

agree with both above posts ^^^^^^.looose, lost, corroded, worn out, tired, knackered, over the hill, neutral.

Are you referring to yourself Tel or the OP's problem?

 

[7029 dave]

Yep I would say lost or loose N.

 

[sparksburnout]

Mark what sort of testing have you done to try and identify this fault?

 

[7029 dave]

I have had it down to 90v, on a lost N.

 

[Marks Electrics]

Now Mark, forgive me if I am being a bit obtuse, but your profile says you have done an inspecting and testing course? This sounds like just the sort of thing you should be relishing, not asking for help on here surely? After all, I presume this customer of yours is paying for your services? And you do have a HND?

Thanks for the reply, I only called in late tonight to have a quick look , I am going back to investigate fully, I just wanted a few ideas, this is my first thread and I wanted to give the site a go, cheers

 

[7029 dave]

Thanks for the reply, I only called in late tonight to have a quick look , I am going back to investigate fully, I just wanted a few ideas, this is my first thread and I wanted to give the site a go, cheers

Welcome to the forum , and get involved.

 

[tomspark93]

Thanks for the reply, I only called in late tonight to have a quick look , I am going back to investigate fully, I just wanted a few ideas, this is my first thread and I wanted to give the site a go, cheers

Let us know how you get on

 

[Wonderwall]

You've lost a neutral mate. I'd guess you are getting a path back through earth , or as mentioned a poor connection

 

[telectrix]

Are you referring to yourself Tel or the OP's problem?

bit of both , mate.

 

[Jacek Buczak]

First for me you need check voltage in DB where power go out from mcb to this lights ring and you know all ,so after check power in the ceiling roses and you can find problem.