IR testing on CU upgrade

[n180]

On an eicr we can write LIM for L-N testing and do a test with L-N connected to earth if there's too many electronics to unplug.

What about on an EIC when only doing something like a CU upgrade? Can't do the IR test between L-N with too many things to unplug and we can't write LIM on EIC in the live-live column?

So what to write in the L-L test columns on an EIC?

I know its always good to do the EICR before upgrade, but still got to do the EIC afterwards.

Thanks in advance.

 

[Midwest]

What about L&N to earth testing? Or are you on about the particular limitations on the forms/on-line certs you're completing?

 

[buzzlightyear]

When testing on a cu you can do a globe on L to L and earth.
But must show test results .by saying that if you do not take out the items that are in it will give false reading.

 

[Deleted member 26818]

According to BS7671 an EIC should detail the extent of the work it covers and should include schedules of inspections and test results detailing appropriate inspections and tests which relate to the work covered by the certificate.
Further an EIC should not be used to report on the condition of an existing installation.
As such you are not required to include the results of inspecting and testing existing circuits in the schedules.
Some may argue that you are in fact prohibited from doing so.

If you are unable to conduct an unneccessary test, then it is not a limitation, so does not need to be recorded as such.

 

[n180]

L&N to earth is not a problem, but i've always been taught that goes only in the L-E column.

Is that reading also accepted in the L-L column?

 

[n180]

According to BS7671 an EIC should detail the extent of the work it covers and should include schedules of inspections and test results detailing appropriate inspections and tests which relate to the work covered by the certificate.
Further an EIC should not be used to report on the condition of an existing installation.
As such you are not required to include the results of inspecting and testing existing circuits in the schedules.
Some may argue that you are in fact prohibited from doing so.

If you are unable to conduct an unneccessary test, then it is not a limitation, so does not need to be recorded as such.

So we leave the columns blank then? Surely we can't just leave them blank or write NA?

I'm just trying to know what's the best way to fill the form, I know what tests to do and how to do them.

 

[Dustydazzler]

Make it up

 

[Risteard]

So we leave the columns blank then? Surely we can't just leave them blank or write NA?

I'm just trying to know what's the best way to fill the form, I know what tests to do and how to do them.

You haven't conducted the test, so "N/A" would be fair enough in my opinion. And in the section of the certificate asking about limitations on the inspection and testing obviously I would note that insulation testing has not been carried out between live conductors due to the presence of connected lamps and loads.

Live conductors to Earth is the most important one for insulation testing anyway - in fact in many countries the requirement is simply for insulation testing to Earth.

 

[n180]

Thanks risteard, that's sort of clarification I was looking for.

 

[westward10]

There are no Limitation options on an EIC.

 

[Richard Burns]

You are testing the circuits only to ensure they are safe for re-connection to the board.
In this case you just fill in N/A for the LL testing.

 

[magnoliafan89]

Is it accetable to do 250v??

 

[Risteard]

Is it accetable to do 250v??

There really shouldn't be any need to avoid a 500V test between live conductors and Earth. Just make sure any surge protection is disconnected first.

 

[Deleted member 72666]

Is it accetable to do 250v??

See 643.3.2

 

[Deleted member 72666]

You are testing the circuits only to ensure they are safe for re-connection to the board.
In this case you just fill in N/A for the LL testing.

Or better still N/V.