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tests

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  1. N

    IR testing results on MWC

    Interested to know what other people do about IR testing results on a MWC. If your additions contain new fixed wiring then you test that and record those results, obviously. But what if you're just replacing a fitting with a brand new one, the IR testing of which seems pointless? Do you leave...
  2. M

    MERLIN GERIN Multi 9 4P RCD RCCB 100A 300mA

    Does anyone know if there is a common problem with the Merlin Multi 9 RCCB 4 pole 100Amp 300mA, not tripping as we have replaced an existing unit with a new one but the issue is the same, Many Thanks Mark
  3. L

    Fluke 1645B, is it able to do a 2 lead Zs test?

    Thinking of getting either a Fluke 1654B or a Megger 1720 as my Metrel is doing my head in when having to use three leads for looping light fittings and it takes ages carrying out no trip Zs tests etc. Can the Fluke do a 2 lead Zs, if not I might as well just go for the Megger and be done with it?
  4. The Solar King

    Thermodynamic Panels NAREC Tests

    There are so many threads on this, thought I would start a new one. First results of NAREC tests now posted here: Thermodynamic panel test - Narec Distributed Energy Early days, but interesting.
  5. P

    Megger Question...

    Hi All, does anyone know, when testing Ze on the Megger, and also getting the PFC at the same time, if the PFC provided is the higher of the PEFC and PSSC? ie, does it carry out both PFC tests simultaneously and provide worst case result or does it just test for the PEFC? Thanks in advance! Ps...
  6. B

    tests

    hello, i don't suppose anyone knows why the electrical tests are done in a certain sequence do you? thanks in advance
  7. T

    Query regarding old 2391 question - RE sequence of tests

    Hi, I've been having a nose through some of the old past Chief Examiner reports and the December 2011 edition has on page 5 has the following quote: Can anyone explain why Continuity of CPC is not the first test? Is it purely because if you get an end to end reading on the CPC then that is...
  8. L

    Energy supplier refuses to restore power until inspected?

    Dear experts, I had a phone call from a landlord who wishes to let a studio flat out after it has been unoccupied for about a year. A prepayment meter is installed which has obviously ran out of credit and there is no power to the property. Apparently the energy company won't restore the power...
  9. Prime Design

    IR Tests & Fault Finding

    Hi fellow electricians, I'll get straight to the point. How low do the readings for an IR test need to be on 250V or 500V scale before a 30mA RCD or 32A MCB trips when the circuit is live and in operation and where would I find that information? I know it will trip straight away with a dead...
  10. P

    complete tests

    Hi there. could someone tell me when carrying out testing and the installation fails a particular test i.e IR, does the person testing stop right there, informs the person ordering the inspection & test and fails the installation or come back again when the fault is rectified? would the testing...
  11. Baker1988

    sequence of tests

    Hi i am doing some college home work (which i am fine with) its to do with the sequence of tests and i have been looking in guidance note 3 and in 2.7.4 is the sequence of tests but can i ask who does "f" 'insulation resistance of non conducting walls and floors' i ave never heard of this before...
  12. F

    Practice Exam Tests

    Does anybody have any information about free downloadable test exams for CG2365 or similar, I am presently trying to locate 2365-202/203 Many thanks in advanced Newboy Multiple choice practise software for the City and Guilds 2365 210 exam communicating with others
  13. G

    Sequence of testing

    Afternoon all, i was wondering if any of you could help me with this question.. Why must testing be done in sequence?
  14. O

    Street lighting testing!!! Help !!

    Hi all , i am am about to be starting with a new firm who insist on all electrical test s to be done on each column with a new lantern. Could anyone help me with the procedure of these test and exactly how to perform them as I know they would differ from a domestic testing . Any help...
  15. N

    3 Phase motor on AHU

    Hi everyone. Have a problem iv not come across before. So the motor has stopped running on the AHU in our building. It's controlled by an inverter. First thing I done is check the inverter was running (which it was), then checked for voltage at the motor terminals. To my surprise (and probably...
  16. A

    Led floodlights tripping but dead tests clear...

    Hi, just finished a job installing 12no 100w led floods from ansell lighting and they are causing me problems. The lights are switched alternate over two switches, so one switch does 6 and so does the second. First of all I has them connected to a B10 crabtree loadstar mcb which tripped 9/10...
  17. M

    Testing question

    hi all I am currently working as a mate the contractor I'm working for which I shall not name does the following test. he only measures zs doesn't do continuity r1 r2 he says that there is a good earth return if these results are within those permitted, he takes his ze from his zs to obtain his...
  18. N

    Fluke 1652c

    Going shopping tomorow. Thinking of buying above. Anyone have one.Are they a good piece of kit,user friendly?? Any tests they can't do,with regards to installation tests and periodic? I can't think of any. Thanks in advance
  19. D

    Annual EICR Tests

    Guys, I work for a company that do a lot of annual testing. As a company we test 100% of each DB every year as clients request. We have noticed now that some of the older DBs the screws on neutral bars are beginning to become worn. (Yes we do use correct screwdrivers and tighten then to the...
  20. NDG Elecs

    RFC testing shenanigans

    Hello Chap/ettes, Testing a RFC today. End-End values spot on: 0.19/0.21/0.34. All IR tests good bar N1-CPC2 which was 0.0 mega ohms. N2-CPC2 was >299 mega ohms. Why, if I am getting 0.21 and 0.34 on the end-end am I not getting 0.0 m ohms on both neutrals? Is it to do with the resolution of...

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