Help me understand please.

[Craig78]

Hi there can anybody help me. I am new to testing but trying to learn the basics of it myself. Its been a long time since I went to college, but now new year new start I am trying to go down the domestic installer route. I do hold some C&G's in Installation but these were obtained a few years ago and we only touched on the basics of testing. I grasp some of it but how do I establish continuity of main earth or supplementary bonding conductors.

Sorry to bother you all, thanks for your patience.

 

[Andy™]

wander lead

 

[Megaohm7]

As Andy said mate, Wander lead! There has been some posts on here about wander leads. They can be made up fairly cheaply and do the job well. Just remember to null the lead first though. Test from one end of the conductor to the other hence the long wander lead and I usually test on the pipe work near the clamp (if you can find a clean piece) as that proves the integrity of the clamp fixing itself.

 

[sparkytim]

And don't forget to DISCONNECT one end of the bonding conductor (from the pipe OR from the earth bar) to ensure you are not measuring parrellel paths.

 

[m4tty]

Have a read of the "on site guide" Mate. There is a testing section in there which illustrates the teats and explains them all pretty well. Or try gn3 which is even better. Hth

 

[SPECIAL LOCATION]

I do hold some C&G's in Installation but these were obtained a few years ago and we only touched on the basics of testing. I grasp some of it but how do I establish continuity of main earth or supplementary bonding conductors.Sorry to bother you all, thanks for your patience.

I am sorry if I sound stooopid in this answer....

BUT

Surely this IS the basics of testing?

Its a continuity meter and some probes touching the items you want to test continuity between.... NO?? :C :|

So in step by step guide:-

1/ Just identify and locate the item you want to test continuity between..

2/ Stuff your leads on the ends of the above item(s)..

3/ If you leads aren't long enough... extended them with a wander lead..

Or use another conductor from another suitably located circuit..

(bit like using R1 to test continuity of R2 in such as the R1+R2 continuity reading.)

4/ Take your readings... applying any relevant nulling or zeroing of the meter leads which are not part of the item you are Trying to test..

5/ Done cup-o-tea! ut the kettle on

now...

Insulation Resistance..

Earth Loop Impedance..

RECD operating times..

are a gnats whisker more involved...

But IMHO continuity is about the lowest of the low when it comes to carrying out any test.. aka The Basics.

:C :coffee

 

[alworth26]

i would use method 2

 

[Megaohm7]

And don't forget to DISCONNECT one end of the bonding conductor (from the pipe OR from the earth bar) to ensure you are not measuring parrellel paths.

I would disconnect from the earth bar so I can prove that the clamp is making a sound connection..

 

[kme]

i would use method 2

I`m sorry. I think I`m having a "thick" night..... :Blushing

But I don`t quite understand what you mean by "use method 2"......

Or were you referring to SL`s post, and saying you`d go for the second option on his list; namely:

2) Stuff your leads on the ends of the above item(s)..

Sorry to sound daft here - I didn`t think that list was an "either/or" type of list.......

KME

 

[Apache]

Meow - KME

 

[kme]

What`I do?

 

[Apache]

Sorry, thought I heard your *****. Think that cat word gets filtered out

---------- AUTO MERGE Post added at 00:44 ---------- Previous post was at 00:44 ----------

See

 

[alworth26]

I`m sorry. I think I`m having a "thick" night..... :Blushing But I don`t quite understand what you mean by "use method 2"......

Or were you referring to SL`s post, and saying you`d go for the second option on his list; namely:

Sorry to sound daft here - I didn`t think that list was an "either/or" type of list.......

KME

do some home work on method 2

 

[kme]

AH! I now understand a couple of things mate:

1. You think that "I`d use method 2" is self explanatory; when by far the most common use of the phrase "method 2", in a testing sense, is something completely different. Had you said " I just r2 everything", it would have been clearer.

2. To quote from the link you just posted:

Method 2

​

This method, like wise is similar to

test 2 of the continuity test, we

simply use a wander lead as the

return lead. (see figure 2).

There is little use for this method,

within the polarity test. Method 1 is

less clumsy, and is far more flexible

​

and useful.

This suggests that you prefer a method that is more clumsy and less flexible / useful.

If I were the O/P, looking at that, I`d avoid your suggestions like they had swine flu. Such a ridiculous, unfounded interjection of nonsensical drivel, without a covering explaination, is as useful to the conversation as I am to theoretical particle theorem.

Apart from all that; you link to a polarity test - when no -one, including the O/P, had mentioned polarity previously. What`s the point, FCOL?

 

[alworth26]

AH! I now understand a couple of things mate:1. You think that "I`d use method 2" is self explanatory; when by far the most common use of the phrase "method 2", in a testing sense, is something completely different. Had you said " I just r2 everything", it would have been clearer.

2. To quote from the link you just posted:

This suggests that you prefer a method that is more clumsy and less flexible / useful.

If I were the O/P, looking at that, I`d avoid your suggestions like they had swine flu. Such a ridiculous, unfounded interjection of nonsensical drivel, without a covering explaination, is as useful to the conversation as I am to theoretical particle theorem.

Apart from all that; you link to a polarity test - when no -one, including the O/P, had mentioned polarity previously. What`s the point, FCOL?

At the end of the day kme you dident no what method 2 is

 

[kme]

Excuuuuuse moi?????

FYI: I know what oooodles of "method 2"s are - you simply piled in to a discussion about a subject with an unfounded, somewhat useless post about using "method 2".

Try explaining what you`re talking about - it`ll really help us poor sods who don`t know anything, we may learn something from those who are FAR and away more intelligent than us humble plebs.

Now do me a little favour, sunny jim - leave it there!

X(

 

[Andy™]

At the end of the day kme you dident no what method 2 is

at the end of the day, this place was much better when you were not here.

 

[alworth26]

[quote name='Andy

 

[Megaohm7]

I`m sorry. I think I`m having a "thick" night..... :Blushing But I don`t quite understand what you mean by "use method 2"......

Or were you referring to SL`s post, and saying you`d go for the second option on his list; namely:

Sorry to sound daft here - I didn`t think that list was an "either/or" type of list.......

KME

R2 method ?? O)

 

[ADS]

i would use method 2

I don't see how you have a choice.