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tests

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  1. infinity

    new Megger

    I'm looking at splashing out in the 1730 Anyone know who sells them at the best price? Il also be selling my 1553 if anyone's interested its in immaculate conditions till well looked after and about 9 months calibration left
  2. C

    any advice? 308 fault finding.

    hi guys.. on my final and last unit at college now finaly, just wondering if any of you guys have any advice, i.e typical fault finding methods etc.. Some of the circuits in the bay are: - 2 way lighting circuit - shower circuit - sockets on a ring circuit - single phase motor currently...
  3. A

    RCD problems..

    Hi all installed some downlights for a customer the other day, nice easy job (as they all start out to be) did the usual tests, Earth loop was a high reading, checked supply and it was TT even though a lead sheathed underground supply cable. Ze was high 290ohms, bonding to gas and water all...
  4. V

    30mA rcd trips at 17mA when submain connected mcb is on...ok when submain mcb is off

    Hi all Ok...been to a job today with a random tripping 30mA rcd its a bit of a full on install...at a undertakers.... 3p cutout feeds 3 main switches...1 for a workshop db...for a flat over the undertakers...1 for the undertakers.... from the undertakers mainswitch...we have a swa submain to a...
  5. Mark.W

    PV testing

    Hi peeps Just a quick one but how many of you do DC dead testing on PV systems?! Regards Mark
  6. S

    RCBO not restting

    Hi all Have a problem with a Wylex 32A Type C RCBO that has tripped to a utility room and heating plant room to a west London mid terraced house. It will not reset even with all loads removed. I tried swapping the line and neutral conductors to an adjacent same rated RCBO and the same...
  7. S

    Insulation resistance testing

    Hi guys, i have always wondered when doing insulation resistance testing is there a test you can do to see if there are any loads still connected (ie neons,equipment) to see if the readings are true or through loads connected in the circuit.
  8. M

    Zs test tripping RCD.

    Hi, recently I have found that my Fluke 1653 has been tripping the odd RCD when doing a three lead Zs(loop) test. I can't understand why, it has not done this before.
  9. R

    Certifying mobile container install

    Hi guys, I've completed a new install on a container That's to be sent off to unknown site? 63A commando skt (single phase). I am to fill in an electrical installation certificate (which I am only able to input dead testing results). Is this correct if I was to EICR a container the same would...
  10. akwoody2

    Board Change Questions

    So im looking to get certified with Stroma, signed up and my first job that I can use for the assessment is a board change. The only issue is it doesn't have bonding to the main water. Can I change the board and put the fact there is no bonding down under as an advisory? Thanks for your help...
  11. R

    Suitable tests

    Suitable tests to determine the likely problem for each of the situations: A shock received whilst changing an Es lamp?- insulation resistance A new machine does not function?- Continuity A new three phase motor is running the wrong way?-phase sequence Someone can tell I'm right??
  12. J

    Emergency Lighting Periodic Inspection Cert (BS 5266)-Do I need to issue one?

    Hi Everyone I am a time served electrician now doing a caretaker/facilities manager role in a 6 Floor Office building which is mostly occupied by NHS employees. The building was built in the 60s so is quite old but everything has been kept up to date by the fella I work for...
  13. R

    Test RCDs

    Hi guys I have a question: how the tests carried out on the 500mA RCD would differ from those carried out on the 30mA for test sockets outlet protected by RCDs 30mA Any hints?? Im my opinion test instrument disply large value times???
  14. C

    sub mains help newbie

    Hi guys please bear with me as I am new to the electrical game I have done a private job and run a garage board to a shed with a six mm amoured fone all relevant test on the curcuits And done a zs at db but do I have to r1 r2 the sub mains to put on the test results or is tbis not needed and...
  15. J

    How to test off-peak circuits? (Live Tests)

    Hi, What do you guys do when it comes to "off peak" controlled circuits (i.e council housing heating boards)? The timeclock/supplier side of things is sealed with the tags, so no way to over ride it? What do I put down on my test sheet/What's the best thing to do (I don't fancy waiting in a...
  16. M

    CU Change - Ring Tripping RCD Low IR

    Hi i went to change a CU last night and the ring main is causing the RCD to trip even with everything unplugged. I am going back today to investigate abit more, i have just left the ring on the non RCD side for the time being. The customer is as tight as and doesnt really want to pay for me...
  17. P

    Emergency light testing

    What are the test frequencies for emergency light testing? Got a few lights to repair in a library but they are only doing a functional test on their em lts at present, so not doing it properly. I know they log the tests but dont actually carry it out correctly. Am I right in thinking its a...
  18. C

    emergency light testing

    Hi everyone. I have an emergency light test coming up. I have never carried one out before. Is it as simple as: 1. Checking there is a key switch/isolator 2. Making sure all emergencies are working correctly 3. Making sure the batteries are up to scratch by them staying illuminated for the 3...
  19. S

    EFLI tests and off-grid inverters

    Hi team. Just wanting to know if there are any harmful effects when testing final sub-circuits in an installation being powered by an off-grid PV system with an EFLI tester? Thanks.
  20. J

    practical 2394 live tests

    hi there hope you are all well looking for a bit of info on the live tests ze,pfc,zs,rcd i have done the BG course and doing the practical test next week and i am struggling to remember the correct procedure. the test rig has a isolator which is locked off till you have finished the IR test...

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