Strange RCD Problem

[EWebster]

Stated by a member of 4.5 years and a mere 57 posts!

So posts and years mean status now?


The reason behind this forum, and please do correct me if I'm wrong, is to help members with issues that other members may have experienced before. To flame or shoot down a member with a first reply just shows me what an egotistical and elitist member you are, and not worthy of any respect whatsoever.


Instead of berating and belittling those with issues, how about actually posting something useful? If you can’t do that, then why post at all? To start a reply with “How about calling a competent sparks”, or words to that effect, has absolutely no value. And yes, I am a competent sparks, thank you. You are welcome to form an alternative opinion, if valid, once you have known me personally and worked with me for a while.


I have no doubt you have contributed and helped many members over the years. I also have no doubt that I could run rings around you in several aspects of electrical, electronic or networking subjects, but I would hope that if you posted a question that you were having issues with, I’d reply with a sensible, helpful and mature response.


Wirepuller: I am very aware of how to test electrical installations. I also know how an RCD works. I posted to get other members view, and to help sort out a muddled head. If you have never had an issue where you need to bounce ideas off your peers and then the answer turns out to POSSIBLY be relatively simple, then you are obviously a better man than most.


To all those who have posted sensible and helpful comments, I thank you and will try out suggestions tomorrow.


Yours sincerely,


E

 

[Deleted member 9648]

So posts and years mean status now?


The reason behind this forum, and please do correct me if I'm wrong, is to help members with issues that other members may have experienced before. To flame or shoot down a member with a first reply just shows me what an egotistical and elitist member you are, and not worthy of any respect whatsoever.


Instead of berating and belittling those with issues, how about actually posting something useful? If you can’t do that, then why post at all? To start a reply with “How about calling a competent sparks”, or words to that effect, has absolutely no value. And yes, I am a competent sparks, thank you. You are welcome to form an alternative opinion, if valid, once you have known me personally and worked with me for a while.


I have no doubt you have contributed and helped many members over the years. I also have no doubt that I could run rings around you in several aspects of electrical, electronic or networking subjects, but I would hope that if you posted a question that you were having issues with, I’d reply with a sensible, helpful and mature response.


Wirepuller: I am very aware of how to test electrical installations. I also know how an RCD works. I posted to get other members view, and to help sort out a muddled head. If you have never had an issue where you need to bounce ideas off your peers and then the answer turns out to POSSIBLY be relatively simple, then you are obviously a better man than most.


To all those who have posted sensible and helpful comments, I thank you and will try out suggestions tomorrow.


Yours sincerely,


E

OK, perhaps you would be good enough to post up the outcome.

 

[EWebster]

OK, perhaps you would be good enough to post up the outcome.

I'd be glad to. And knowing sod's law it will be something quite simple, but happy to share my experiences and hopefully it will help someone else.

 

[Octopus]

So posts and years mean status now?


The reason behind this forum, and please do correct me if I'm wrong, is to help members with issues that other members may have experienced before. To flame or shoot down a member with a first reply just shows me what an egotistical and elitist member you are, and not worthy of any respect whatsoever.


Instead of berating and belittling those with issues, how about actually posting something useful? If you can’t do that, then why post at all? To start a reply with “How about calling a competent sparks”, or words to that effect, has absolutely no value. And yes, I am a competent sparks, thank you. You are welcome to form an alternative opinion, if valid, once you have known me personally and worked with me for a while.


I have no doubt you have contributed and helped many members over the years. I also have no doubt that I could run rings around you in several aspects of electrical, electronic or networking subjects, but I would hope that if you posted a question that you were having issues with, I’d reply with a sensible, helpful and mature response.


Wirepuller: I am very aware of how to test electrical installations. I also know how an RCD works. I posted to get other members view, and to help sort out a muddled head. If you have never had an issue where you need to bounce ideas off your peers and then the answer turns out to POSSIBLY be relatively simple, then you are obviously a better man than most.


To all those who have posted sensible and helpful comments, I thank you and will try out suggestions tomorrow.


Yours sincerely,


E

Maybe you should read the post again in full, pausing to take in the second sentence!

 

[vernam616]

Circuit will have picked up a earth via another circuit

 

[skydog23]

Any outside lights ?
Any other trades been in.
Plumbers don't mind running hot pipes close to cables, IR may show clear untill they heat up and touch.
Or is it lecky's that run cables too close to pies lol.
Did you take all neutrals out of the bar except the circuit at fault, or just open the MCB s to the others ?

 

[EWebster]

Maybe you should read the post again in full, pausing to take in the second sentence!

Re-read, noted, and opinion reinforced.

 

[EWebster]

Any outside lights ?
Any other trades been in.
Plumbers don't mind running hot pipes close to cables, IR may show clear untill they heat up and touch.
Or is it lecky's that run cables too close to pies lol.
Did you take all neutrals out of the bar except the circuit at fault, or just open the MCB s to the others ?

Plumbers ran pipes right next to my cables come to think of it!
As for neutrals, put the device on its own RCBO, so some cross contamination happening somewhere, whether earth (as mentioned in previous posts), or with neutral. Will investigate further tomorrow.

 

[uksparks]

If the live is connected and and trips, it's finding it's way to earth somewhere to trip the rcd if the neutral and earth are disconnected, I would have though. I'd pay very close Trenton to every fitting upstairs and faceplates etc.

 

[Broken handle]

Have you carried out your insulation resistance tests with the cpc connected to the means of earthing.

Your line conductor may be shorting to a piece of earth metalwork.

I go with this.