Testing problems need a little help.

[Des 56]

Kes
I admire your determination to carry out these tests
I am sorry to say but after reading the thread, at the moment you do not appear to be completely sure what the readings you are getting mean, or what they are relevant too
You are unsure of the system type and you are live testing at source

These tests can be dangerous if not carried out correctly, as you know

Other testing,such as dead testing, after proving dead, would make you more familiar with the instrument and procedures

You may be wise to curtail the live tests for the time being, concentrate on the testing theory and getting to know your machine

When you feel confident of doing these live tests,arrange a session with an experienced person initially
It will benefit you more than stumbling along for the time being
I intend this advise, not as a put down to you,but with your improvement in testing in mind

 

[kes123]

Thanks and I understand what you are saying. I have done and passed a 2392 course but the knowledge soon starts to fade unfortunately.
I will keep reading and i will try to avoid live testing at present unless its done through a socket using the adapter.
And thanks for giving the help that In have got

 

[flukey]

Thanks and I understand what you are saying. I have done and passed a 2392 course but the knowledge soon starts to fade unfortunately.
I will keep reading and i will try to avoid live testing at present unless its done through a socket using the adapter.
And thanks for giving the help that In have got

now the alarm bells are really ringing!!!!!!!!

 

[DaveyD]

Kes, get a picture of the incomming up.

 

[malcolmsanford]

Can we please clarify, when you say the consumer unit is protected by, do you mean the main incommer in the consumer unit is an 100A RCD or is there an RCD between the meter and CU?

Whenever you are testing Ze your whole circuit side of your CU should be off as you've disconnected the main earth for the whole installation! So the only thing that should be live in the CU is the supply side to your main incommer.

Ok now I am really confused. the consumer unit is protected by a 100amp rcd.

I am connecting green probe to earth. the red probe to the rdc should this be the live side of the rdc then not the dead side.
my megger is just flashing 55

Kes
I admire your determination to carry out these tests
I am sorry to say but after reading the thread, at the moment you do not appear to be completely sure what the readings you are getting mean, or what they are relevant too
You are unsure of the system type and you are live testing at source

These tests can be dangerous if not carried out correctly, as you know

Other testing,such as dead testing, after proving dead, would make you more familiar with the instrument and procedures

You may be wise to curtail the live tests for the time being, concentrate on the testing theory and getting to know your machine

When you feel confident of doing these live tests,arrange a session with an experienced person initially
It will benefit you more than stumbling along for the time being
I intend this advise, not as a put down to you,but with your improvement in testing in mind

Kes you would do well to heed Des advise mate as in all the posts I've seen from him I never known him to far off the mark and that was very very good advice ......................

I understand your desire to learn and I think like me Des was the old school where we had guidance of electricians who made sure we never came to harm when doing this type of things, well I say harm I don't include the occasional rap over the knuckles if I was going to do something stupid ..............

Unfortuantely the younger sparks don't have this safety net, of an older hand to guide them, and that is where people like Des and this forum is a god send to you guys. Never be afraid to ask us on here, and if your not sure ask again, as my old sparks told me year ago

"Son when I hang these overalls up at night, they no more about electrics than you", which I was reminded of just a while ago.

 

[DaveyD]

"Son when I hang these overalls up at night, they no more about electrics than you", which I was reminded of just a while ago.

Like it...

 

[telectrix]

Like it...

me too.

 

[kes123]

Wish i could borrow those overalls for a while LOL

 

[malcolmsanford]

Wish i could borrow those overalls for a while LOL

I' m actually seeing the old lad next week, I bet you he still as them, and I bet you that they still know more about electrics than me ...........

 

[trypod]

kes
where are you based?

Some one might be able to help you?

A good read for you would be: "The Part P Doctor" Second Fix by Alan Lynch

Kev

 

[kes123]

I am based close to Nottinghamshire and would love the chance to go out with an experienced person. I am cheap (well free).
I will try and get hold of "the part p doctor"
thanks for the advice

 

[Electricalserv]

This raises the issue that anybody can go out and buy this equipment and start testing away at home....doing this whilst not fully understanding the installation and apparatus. In GN3 I'm sure it says before any testing you must understand your instrument.

Kes lay off the testing, you are not comfortable doing it!

 

[tony mc]

Good advice you need someone to take you through the practical side of testing especially Live testing as your getting a bit confused.

Re your meter you need to know it inside out prior to this so have a look at this its in 2 parts on You Tube along with a few others hope it helps.



YouTube - Megger MFT1552 & MFT1553 Demo Part 1

 

[Bradzz]

Some photos for your reference.

 

[flukey]

dont forget the op has successfully completed the 2392

 

[Amp David]

dont forget the op has successfully completed the 2392

Oh yeah thats right!

Using probably the simplest tester to do the simplest tect and still having issues.

Plenty of post here saying exactly how to do it properly.

Troll alert LOL

 

[nikmet]

Please dont underestimate the advice you are getting here Kes, it is possible to seriously injure yourself or worse carrying out live testing until you are confident (skilled confident, rather than positive thinking confident), im sure somebody local may be able to help you out.

 

[flukey]

Oh yeah thats right!

Using probably the simplest tester to do the simplest tect and still having issues.

Plenty of post here saying exactly how to do it properly.

Troll alert LOL

very true, doesnt matter what tester you choose to use, if you have successfully completed a course like the 2392 you should definitely know where to put the probes and what sort of readings to expect for a given system

 

[kes123]

Passing a 2392 does give you a certain amount of knowledge and where to stick the probes, or more importantly where not to stick the probes. I will avoid live testing as much as possible, but even when isolating it contains a test done live, but because of how you do it, it is quite safe. so its like I said I am making alot of mistakes, its all a learning process. But i am making the mistakes safely and thats what counts.

I appreciate the advice that I am being given, but i do feel that some of the advice is maybe aimed at me as if I was a stupid child or something.

I can read a million books, infact I have but its only by actually doing it that any of it starts to make any sence.

 

[nikmet]

not sure if it is possible to make mistakes safely?? seems a contradiction??, as its a mistake , if your lucky it will turn out safely and if your unlucky you get injured............