test

[colly53]

Hi I have done a test on a lighting circuit and can't get my head round results.
Live--Live == 2.19 m ohms
Live-E ==== 99.9 m ohms
Also RCD tipping test at I ==400ms but does not trip
but at I5 trips at 14.7 ms
can anyone shed any light.

Thanks Col

 

[Leesparkykent]

Hi I have done a test on a lighting circuit and can't get my head round results.
Live--Live == 2.19 m ohms
Live-E ==== 99.9 m ohms
Also RCD tipping test at I ==400ms but does not trip
but at I5 trips at 14.7 ms
can anyone shed any light.

Thanks Col

Why can't you get your head round it?

 

[Darkwood]

When you say LIVE - LIVE are we on about 3ph here or has you have not indicated a N reading do you mean L - N and if so what is your N-E reading.

Please give all readings and be clear as 'm ohms' would be 'mili ohms' so please represent your reading as you are taught M-ohms I would assume.

Where at and how are you taking your RCD readings...ie at the RCD or at a lighting point.

 

[colly53]

sorry I should have said it was insulation resistance test.
The RCD was tested for tripping time was at a socket

 

[Leesparkykent]

sorry I should have said it was insulation resistance test.
The RCD was tested for tripping time was at a socket

Did you try conducting the RCD tests at the RCD with all loads disconnected? (How it should be done)

 

[Des 56]

When you say LIVE - LIVE are we on about 3ph here or has you have not indicated a N reading do you mean L - N and if so what is your N-E reading.

Please give all readings and be clear as 'm ohms' would be 'mili ohms' so please represent your reading as you are taught M-ohms I would assume.

Where at and how are you taking your RCD readings...ie at the RCD or at a lighting point.

Given the good advice above,why don't you make use of the training section

 

[Leesparkykent]

I didn't realise you was a trainee, might be worth joining here http://www.electriciansforums.co.uk/apply-gain-access-trainee-only-forum/ as the others have said.

 

[Pete999]

Colly ask for permission to join the trainee section, it's been said before lots of help in there without the urine taking

 

[colly53]

Thanks Pete at last a sensible reply

 

[Darkwood]

Thanks Pete at last a sensible reply

Unless we look into your profile we are unaware of your level, you have an option to have trainee clearly worded under you forum name, this would change how anyone approached your question, as above ask for trainee status from a Mod' and I believe this gives you a Trainee badge so we all are informed of your level if you post in this section.

 

[NDG Elecs]

Thanks Pete at last a sensible reply

Haway Colly, no one took the mick. All the replies were very civil and sensible mate. Good bunch on here - appreciate them!

:smile5::smile5:

 

[GMES]

Thanks Pete at last a sensible reply

To be fair your 1st post could have been better colly and using the correct terminology also goes a long way, I can't see any sarcastic replies from the lads.

If you are currently on a full time course at college then feel free to apply for access to the trainee section
http://www.electriciansforums.co.uk/apply-gain-access-trainee-only-forum/

 

[Guest77]

I was going to --- rip you but as Glenn mentioned you are to blame due to your first post, we didn't give any sarcastic posts at all, and believe me we are famous for just that, I appreciate you have been a member for 6 months, but at 9 posts have not worked us out yet, I suggest you apply to join the trainee forum, and quickly as well lol.

 

[HappyHippyDad]

I was going to --- rip you but as Glenn mentioned you are to blame due to your first post, we didn't give any sarcastic posts at all, and believe me we are famous for just that, I appreciate you have been a member for 6 months, but at 9 posts have not worked us out yet, I suggest you apply to join the trainee forum, and quickly as well lol.

It took me 2 years to work you lot out Mike and get through the assault course!

 

[GMES]

It took me 2 years to work you lot out Mike and get through the assault course!

You mean to tell me you've worked them out steve, I may have to give you a call and get some tips!!