240v on the neutral ??

[Troy Lashmar]

why am i finding 240v on the neutral ?? we rewired the power in a house and upgraded the consumer unit but when the RCD's are connected they trip different mcb's. when testing we found 240v on the neutral.... when you take away the RCD's everything is fine. we have changed the main switch and still have the problem. any suggestions as its getting very frustrating now.
many thanks
Troy

 

[hasel5]

Pure quality post

 

[Troy Lashmar]

what do you mean ??

 

[Octopus]

Popcorn at the ready!

 

[Brightspark2]

Yes, get an electrician in!...

 

[hasel5]

This could be good want affront row seat

 

[Troy Lashmar]

i am an electrician.... i thought this was a place where you you get help not the **** taken

 

[Marvo]

Exactly what testing have you done so far?

 

[dan86]

surely if you rewired the house, and you are now getting a fault, you should know what it is...

 

[Octopus]

Are you from Sompting?

 

[DPG]

Looks like a good 'un Daz

 

[dan86]

they're not taking the ****, you're giving it away!

 

[Octopus]

why am i finding 240v on the neutral ?? we rewired the power in a house and upgraded the consumer unit but when the RCD's are connected they trip different mcb's. when testing we found 240v on the neutral.... when you take away the RCD's everything is fine. we have changed the main switch and still have the problem. any suggestions as its getting very frustrating now.
many thanks
Troy

Priceless.

 

[Troy Lashmar]

enlighten me then.... we done a rewire of the sockets only all tested fine but when we installed the rcds they kept tripping also sometimes the trip switch wouldnt work but when you remove one of the neutrals on the the bar the test button works.
using a british genrel consumer unit with 4 neutrals going off to the 2 bars...
as soon as you put one of the neutrals on the bar...bang, trips again ??

 

[telectrix]

possibilities.

1. you wired tails the wrong way round.

2. supply neutral is missing, call the A team.

3. some other cock-up. call dynamo, magician impossible.

 

[Troy Lashmar]

perhaps im not explaining myself properly

 

[dan86]

perhaps im not explaining myself properly

no, you most definitely are

 

[Octopus]

perhaps im not explaining myself properly

So why don't you answer the question about the testing??

Are you from Sompting?

 

[Troy Lashmar]

tails are fine and correct... the only difference made to the service side was we put the cpc in to make system tncs thats all

 

[micknew]

enlighten me then.... we done a rewire of the sockets only all tested fine but when we installed the rcds they kept tripping also sometimes the trip switch wouldnt work but when you remove one of the neutrals on the the bar the test button works.
using a british genrel consumer unit with 4 neutrals going off to the 2 bars...
as soon as you put one of the neutrals on the bar...bang, trips again ??

Pay your local sparks to sort it , its not a DIY thing you've done.

 

[Octopus]

tails are fine and correct... the only difference made to the service side was we put the cpc in to make system tncs thats all

Tell me you didn't really do this??

 

[Marvo]

Exactly what testing have you done so far?

enlighten me then.... we done a rewire of the sockets only all tested fine but when we installed the rcds they kept tripping also sometimes the trip switch wouldnt work but when you remove one of the neutrals on the the bar the test button works.
using a british genrel consumer unit with 4 neutrals going off to the 2 bars...
as soon as you put one of the neutrals on the bar...bang, trips again ??

Wiring things up and removing bits and pieces when it all goes 'bang' isn't testing. I'll ask one more time so please answer before I close the thread.

What testing have you done so far?

Tell us the tests you did one by one and the results you got for each test.

 

[Clive P]

Hi,

Is Monday the new Friday, this should be interesting!

Regards.

 

[almantle]

Was there no earthing before then?

 

[telectrix]

DIY PME. it gets worse!!!!! first you've either got a neutral in the wrong hole, or a shared neutral, and the |DNO gestapo will be round for mucking about with their gear.

 

[Marvo]

tails are fine and correct... the only difference made to the service side was we put the cpc in to make system tncs thats all

Okay that's all I needed to hear.

Get a competent electrician in before you kill somebody.

Thread closed

Oh, and account deleted as well.