S
spartan_spark
Hi guys, not longed joined and kind of glad I found this forum as its got so much info and help its awesome.
Im about to do my practical for the 2394 and 2395 in the same day on Wednesday and I know its a late but I need a bit of help with a few parts of the practical test im not to sure about. Haven’t done testing in a little while so am a little rusty.
So I will start off with my safe isolation and then proceed to do the continuity of protective conductor tests
So at this stage I have a couple questions:
When it comes to doing the R1+R2 for 3 phase contactor, can I test at the 3 phase plug with my link in the cu so goes all the way through the contactor or do I have to do it from cu>contactor then contactor>plug and add them together?
The main bonding conductor goes to an earth block first then to a pipe with a separate cable, should I only test up to the earth block as that’s the continuous part or would I test it up to the pipe regardless of the earth block?
Dumb question but does the dimmer need to be bridged out for the r1+r2 test as im not sure it will have an effect on the reading as it regulates voltage doesn’t it?
So from here I will proceed to do my IR tests, which I have a few questions to:
I’m a little concerned about the 3 phase contactor as I’ve never really worked with them before. There is also an rcbo I believe on the 3 phase board to. So would it be ok because of those rcbo and contactor that I provide a link between the load side of an mcb to the neutral bar and do an IR test between L+N to E? Otherwise would it be a case of doing the 3 phase contactor in 2 parts and disconnecting the rcbo and doing it separately also?
On single phase board I take it leaving the main switch rcd off, doing a complete board test with the dimmer disconnect would be ok?
Will the MiCC circuit effect the readings at all?
So from here I will repeat my dead test on the single phase board. (i will have also done the full ring tests also).
Before I energise i will use the supply side of the 3 phase board to obtain a Ze, PFC and Live polarity, are these all done at once with the same meter or do i have to show separate tests? Can i get phase rotation as well while I’m at it?. Im a bit worried about the live parts as I know working live is a big no no but some things still have to be done, so don’t want to get it wrong.
The other thing that confuses me is the sub main single phase board, will I have to get a PFC for it, as that would mean me closing the 3 phase board and the energising the supply to the single phase board whilst the main RCD off and testing pfc. Would this be ok or considered working live? Also just to ask, as pre GN3, the PFC test doesn’t seem to be a a requirement for a periodic inspection in table 3.4, does this mean I shouldn’t do it?
DO I have to get phase rotation for the motor as well or would have the continuity test proven polarity for it? If so how would I go about phase rotation as I haven’t really done it before?
Thanks guys I know some of the questions are a bit simple but I just to clarify it so I know what I’m doing.
I appreciate any help anyone can give and any tips or advise, thanks again.
Im about to do my practical for the 2394 and 2395 in the same day on Wednesday and I know its a late but I need a bit of help with a few parts of the practical test im not to sure about. Haven’t done testing in a little while so am a little rusty.
So I will start off with my safe isolation and then proceed to do the continuity of protective conductor tests
So at this stage I have a couple questions:
When it comes to doing the R1+R2 for 3 phase contactor, can I test at the 3 phase plug with my link in the cu so goes all the way through the contactor or do I have to do it from cu>contactor then contactor>plug and add them together?
The main bonding conductor goes to an earth block first then to a pipe with a separate cable, should I only test up to the earth block as that’s the continuous part or would I test it up to the pipe regardless of the earth block?
Dumb question but does the dimmer need to be bridged out for the r1+r2 test as im not sure it will have an effect on the reading as it regulates voltage doesn’t it?
So from here I will proceed to do my IR tests, which I have a few questions to:
I’m a little concerned about the 3 phase contactor as I’ve never really worked with them before. There is also an rcbo I believe on the 3 phase board to. So would it be ok because of those rcbo and contactor that I provide a link between the load side of an mcb to the neutral bar and do an IR test between L+N to E? Otherwise would it be a case of doing the 3 phase contactor in 2 parts and disconnecting the rcbo and doing it separately also?
On single phase board I take it leaving the main switch rcd off, doing a complete board test with the dimmer disconnect would be ok?
Will the MiCC circuit effect the readings at all?
So from here I will repeat my dead test on the single phase board. (i will have also done the full ring tests also).
Before I energise i will use the supply side of the 3 phase board to obtain a Ze, PFC and Live polarity, are these all done at once with the same meter or do i have to show separate tests? Can i get phase rotation as well while I’m at it?. Im a bit worried about the live parts as I know working live is a big no no but some things still have to be done, so don’t want to get it wrong.
The other thing that confuses me is the sub main single phase board, will I have to get a PFC for it, as that would mean me closing the 3 phase board and the energising the supply to the single phase board whilst the main RCD off and testing pfc. Would this be ok or considered working live? Also just to ask, as pre GN3, the PFC test doesn’t seem to be a a requirement for a periodic inspection in table 3.4, does this mean I shouldn’t do it?
DO I have to get phase rotation for the motor as well or would have the continuity test proven polarity for it? If so how would I go about phase rotation as I haven’t really done it before?
Thanks guys I know some of the questions are a bit simple but I just to clarify it so I know what I’m doing.
I appreciate any help anyone can give and any tips or advise, thanks again.