i r testing

[Peter Woodford]

how do you carry out a live/live test on i.r have done L/N,N/E and L/N all reading greater than 500

cheers

 

[Guest123]

A line/line test is only carried out on a 3phase installation where obviously you have 3 line conductors and is tested at 1000V.

 

[old dog]

i think what you mean is where it states live/live on the certificate
neutral is a live conductor so live/ live = line neutral

 

[Peter Woodford]

i think what you mean is where it states live/live on the certificate
neutral is a live conductor so live/ live = line neutral

do i still need to put the results for l/n in the l/l table then

thanks

 

[Guest123]

Hi.

No the line - neutral results only go in the line neutral box. The line - line box is for measurements between phases only.

Terminology is key here, there are four colums for I/R on a full EIC, line - line, line - neutral, line - earth, and neutral - earth.

Nowhere is there a colum for live - neutral or live earth. as old dog has said the live conductors are line and neutral

Hope this helps.

 

[old dog]

do i still need to put the results for l/n in the l/l table then

thanks

sorry peter you have lost me a bit
on the schedule of test result you have insulation resistance.
under that you have a box live/live on single phase that would be line + neutral
on 3 phase that would be between lines + lines + neutral
i hope i am making this clear
what do you have on your paper work if it differs from this
ps
and the box live/ earth

 

[Peter Woodford]

sorry peter you have lost me a bit
on the schedule of test result you have insulation resistance.
under that you have a box live/live on single phase that would be line + neutral
on 3 phase that would be between lines + lines + neutral
i hope i am making this clear
what do you have on your paper work if it differs from this
ps
and the box live/ earth

I have live/live and live and earth so I put the live and neutral result in here is this right single phase

 

[old dog]

I have live/live and live and earth so I put the live and neutral result in here is this right single phase

yes mate live/live box line + neutral
live/earth box line +earth
thats it
but for the tests you test as gn3 page 39

why cant they leave things alone live then phase now phase is line if i just keep in mind phase/live/ is line
live can be line or neutral i think i need a cup of tea or coff no no tea

 

[Peter Woodford]

yes mate live/live box line + neutral
live/earth box line +earth
thats it
but for the tests you test as gn3 page 39

gn3 page 39 ? lost me

 

[old dog]

gn3 page 39 ? lost me

guidance note 3 page 39 has the proceedure for insulation test
testing with L+N together to earth ect dont want to confuse the post
now we have it sorted but if you have gn3 have a look i am to tiered
i need my cup of tea

so you are ok now with what goes in what box yes ?