RCCB tripping

[JohnW2]

... after 'knocking off time', perhaps?

I thought about that. And then I thought about the fact that an electrician who had screwed up and left a customer with a major problem should turn out to sort it, even at 19:00.

Agreed - but (s)he would only become aware of the problem if told - and the OP gave no indication that he had been in contact with the electrician. ... and, before you blame him for not having contacted the electrician, don't forget that the OP did not believe that the problem could be related to the electrical work going on 'upstairs', because it was all 'switched off'.

Kind Regards, John

 

[bernardgreen]

Some people pretending to be electricians might not realise that.

But not actual electricians.

Unfortunately I know of two fully qualified electricians ( both are scheme members ) who could not understand how a Neutral to Earth fault on a non powered circuit could have anything to do with an RCD tripping.

They knew it happened so ( probably ) did disconnect the Neutral but they could not explain why they had to.

 

[JohnW2]

Unfortunately I know of two fully qualified electricians ( both are scheme members ) who could not understand how a Neutral to Earth fault on a non powered circuit could have anything to do with an RCD tripping.

Maybe time for me to repeat my story about the (again, scheme member) 'electrician' who tried, increasingly aggressively, to convince me that a second RCD was needed closer to an electric shower, because the cable run was quite long and "a fault current would therefore have fallen to too low a level to trip the RCD in the CU by the time it got there"!

There are, of course, many very good, competent, well-trained and knowledgeable electricians out there, but .... !!

Kind Regards, John

 

[securespark]

Unbelievable!

 

[JohnW2]

Unbelievable!

Indeed. A recurrent problem seems to be that, in recent years, even those electricians who have had an otherwise reasonable training often have not had an adequate education in basic electrical principles - as illustrated by the above story. In this context of RCDs, there are certainly some misconceptions, even amongst electricians, the most common probably being that a, say, 30mA RCD will limit the current through a victim who is receiving an L-E shock to 30mA.

Kind Regards, John

 

[ban-all-sheds]

Unfortunately I know of two fully qualified electricians ( both are scheme members ) who could not understand how a Neutral to Earth fault on a non powered circuit could have anything to do with an RCD tripping.

Sorry - disagree. Whatever bits of paper they had they were clearly not "fully qualified".

 

[ban-all-sheds]

A recurrent problem seems to be that, in recent years, even those electricians who have had an otherwise reasonable training often have not had an adequate education in basic electrical principles

Then there is nothing about their training which can be described as "otherwise reasonable".

 

[JohnW2]

A recurrent problem seems to be that, in recent years, even those electricians who have had an otherwise reasonable training often have not had an adequate education in basic electrical principles

Then there is nothing about their training which can be described as "otherwise reasonable".

I could ask you what you understand by "otherwise" - but since I know jolly well that you understand my point, I don't really need an answer to that question!

Kind Regards, John

 

[ban-all-sheds]

I understand your point.

You seem not to understand mine.

 

[JohnW2]

I understand your point. You seem not to understand mine.

I understand (and agree with you, and never said otherwise) that you feel that those without adequate knowledge of basic electrical principles are not adequately/satisfactorily trained, but that does not stop me making talking about the remainder of their training being adequate. As I implied, that's what "otherwise" means.

Kind Regards, John

 

[ban-all-sheds]

But apart from that, Mrs Lincoln, how did you enjoy the play?