New consumer unit install issue.

[Iona222]

I'm working with my friend a sparky. He changed the consumer unit.

Before hand I checked all circuits for continuity and done quick eicr, everything was OK.

Now with the new board on were getting a neutral fault showing on socket ring. Funny thing is the rcd manual test button isn't working. On the rcd coving the said ring. You think it could be something to do with this why showing a fault on ring. Thank you.

 

[DPG]

What IR results did you get for each circuit?

 

[MJPD29]

How did you fix the issue?

Once we found and removed/ rectified the fault the RCD started functioning normally again

 

[Iona222]

Once we found and removed/ rectified the fault the RCD started functioning normally again

I agree, I just spoke to the spark he said he did a I.r. test and its fine.

 

[Iona222]

What IR results did you get for each circuit?

Was over the required 38M it was. Ill go back change all cpc to the correct size. I read this could be the issue.

 

[Iona222]

the extended cpc has nothing to do with it. you have a N-E fault on the ring circuit which is inhibiting thr RCD. i don't know the theory behind this but i've had it a couple of times.

I read that you can get a error from neutral to protective earth if the cpc is oversized.

 

[westward10]

If you believe this then what is the reason if the cpc is oversized, why would it cause an error.

 

[Iona222]

I read that you can get a error from neutral to protective earth if the cpc is oversized.

the extended cpc has nothing to do with it. you have a N-E fault on the ring circuit which is inhibiting thr RCD. i don't know the theory behind this but i've had it a couple of times.

OK what do I do then, I had all the sockets off, Its passing I.r. what you suggest?

 

[suffolkspark]

OK what do I do then, I had all the sockets off, Its passing I.r. what you suggest?

Its not the "oversized" cpc. You've been told that. Have you measured earth leakage from the circuit whilst energised? Have you done an IR test of the circuit to the MET, have you ensured the neutrals are in the correct bar. Have you split the circuit in half and tried energising 1 leg?

 

[DPG]

The spark you are working with should know what tests to do.

What's his opinion on you wanting to change the size of the CPC? Does he agree?

 

[Iona222]

OK what do I do then, I had all the sockets off, Its passing I.r. what you

The spark you are working with should know what tests to do.

What's his opinion on you wanting to change the size of the CPC? Does he agree?

No he's grabbed the money, ----ed off, saying he's busy.

 

[DPG]

No he's grabbed the money, ----ed off, saying he's busy.

He's been paid for the job despite it not being complete? And left his trainee to fix it? Why did the customer pay him before the job was finished?

Are we getting the full story here?

 

[Pretty Mouth]

Now with the new board on were getting a neutral fault showing on socket ring.

OK what do I do then, I had all the sockets off, Its passing I.r. what you suggest?

In your OP, you say there is a neutral fault. Later you say the circuit has passed IR. Please can you explain this, so we are better placed to advise?

 

[Iona222]

He's been paid for the job despite it not being complete? And left his trainee to fix it? Why did the customer pay him before the job was finished?

Are we getting the full story here?

No I paid him. From my own pocket, the customer is going to pay me.

 

[DPG]

No I paid him.

I think your customer is going to have to get a qualified spark in to sort this out.

In your first post you said it was a friend of yours you were working with.

 

[Iona222]

I think your customer is going to have to get a qualified spark in to sort this out.

Ye, I think so.