testing

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  1. M

    Technical question for IR testing

    So I’m an apprentice and I’m just trying to get a better understanding of the science behind this because the electricians who have said it have been quite vague and not properly explained. Recently testing L-E for a circuit which was 0.02 ohms and the electrician said I will have to remove...
  2. king185

    Continuity / Ohms testing help / Short ?

    Hi, I would love some help understanding an issue I’m having on a 16mm SWA cable running from the CU in my house to the CU in the shed. I believe there is a problem with the cable (possibly between E and N), and I have used a multi-meter to do some checks on the CU (shed side) and below you will...
  3. L

    Am2 Inspection and Testing

    I recently just done my AM2 resit and in my inspection and testing, despite the invigilator watching me do the tests, I think I may have forgotten to tick the RCD test button on the Electrical Installation Certificate despite actually doing it the test. Would that mean an immediate fail for not...
  4. S

    Testing the wiring in an outdoor circuit

    Forgive me if this is easy to search - I was not able to find anything obvious here or on YouTube. I've got an outdoor circuit that has failed. Specifically, one outlet failed and then the second one went about a year later, with no trip of the breaker. How do I test the wiring to make sure it...
  5. R

    Lightning strike damaged 2 AFCI breakers. What to check after replacing breakers and testing outlets

    Background Two weeks ago, lightning struck a tree in our yard. Many circuits tripped and several electronic devices failed. There was a strong smell of ozone/electrical burn throughout the house that has since dissipated. Two AFCI breakers are still problematic. Both serve bedrooms (hence AFCI)...
  6. S

    IR testing steel conduit on 1st fix?

    Hi everyone, I'm nearly on my AM2 test and really enjoy the industrial side of things so I thought I'd learn by asking. I recently came across this note about IR testing PRIOR to connection? Can someone just explain how you would test if there was steel conduit and the earthing arrangement...
  7. S

    Insulation Resistance Testing Am2 - requires to be tested twice

    Hi, I'm a little confused confused is someone can shine some light on the amendment 2 way of doing IR. I know you have to do one 1st fix at 500V DC and then final one at 250V DC when all cables. What I'm confused about is GN3 states: "...sometimes these cables are terminated without further...
  8. P

    PAT testing Qualifications

    Hi guys, first of all, really sorry if it's a daft question but I'm having a bit of brain fart. Recently I received some calls (for the first time) about PAT testing for couple local businesses. Never been bothered doing PAT, but seems like it might be good option to attract some good customers...
  9. T

    Testing a multi point lighting circuit

    Hi Im an apprentice and just wanted to clarify domestic style wiring since i work industrial and don't deal with conventional wiring. in college and the AM2 the only exposure to testing lighting is of a single point that may be switched either one way 2 way or intermediate. that doesn't worry me...
  10. A

    IR testing in domestic dwelling

    Hi all, Testing question for you. I'm currently testing an existing domestic installation. The wiring is about 20-25 years old. We have rewired some of the older circuits and added newer circuits too. During my insulation resistance test, over two-thirds of my results were coming out at...
  11. M

    Microwave leakage testing

    Hi guys I have been instructed to carry out leakage testing on the 3 microwave we have on site as I am the only person on site with 2377 but I'm unsure if the microwave leakage testing req a different qualification as this wasn't on the course or I'm my notes. any guidance welcome.
  12. T

    Remote dis board testing

    Fitted a remote second consumer unit to a detached annex. The supply to it was from a tncs system. The new db has been changed to a tt system for what ever reason. Question is when filling out the EIC do i record the supply characteristics and earthing arrangement as the new board or from the db...
  13. M

    R1+R2 TEST. Tester clicking over and over

    Have only recently gotten in to testing. Doing an R1+R2 on a lighting circuit but instead of producing a result my tester clicks over and over again. Any advice please? Thank you.
  14. cliffed

    EICR & IR Testing so many cables

    Just your thinking on this… Doing Remedials on a EICR … the DB is a old Wylex with MCB”S/RCD Its a 10 way… rammed packed with cabling,,,the Neutral/Earth connections are a nightmare to get at. The IR measurements are not good coming in around 0.154 MOhms. I'm hesitant in actually disconnecting...
  15. R

    Initial verification and testing

    Hi All I’m in charge of the maintenance (machinery and facilities) in a plastics manufacturing business. I have a ‘team’ of little old me and an apprentice! We have 7 (soon to be 12) injection moulding machines and 8 extrusion lines, so to say we are busy is an understatement. Anyway, enough of...
  16. sshdsilverado

    Testing sqD GFCI breaker

    Weekend sparker here, I have a sqd 2 pole 50amp GFCI breaker it was mounted out side in a service box, have not had a problem till now 3yrs old, it trips instantly when rest, with the breaker out of the box, I check resistance across the load side of the breaker from either load 1 to neutral or...
  17. punkin

    PAT testing a Ariston Andris under sink water heater

    Hi All I’ve come across this heater Ariston Andris Lux Undersink Water Heater 2kW 10Ltr - Screwfix - https://www.screwfix.com/p/ariston-andris-lux-undersink-water-heater-2kw-10ltr/3248g Its a plugin & I’m trying to PAT test it. It doesn’t say which class its is under (1 or 2) I would assume...
  18. J

    Trace heating cable - testing issues

    Hi , Wondered if anyone can help , i currently install and test Trace Heating Cable on Mechanical Pipework for Frost protection . Recently our Clients are asking for a recordable test that states cable lengh of the circuit and a test to determine if there is a fault in the cable. Currently using...
  19. A

    Am2 3 phase testing procedure

    Hi got my am2 Tomorow and not sure on how to test continuity for 3 phase circuits, like where to link out also for IR test aswell
  20. littlespark

    Testing for broken PEN

    Can we as electricians pick up on a broken PEN conductor? I’ve installed an EV charger for FIL, and everything tested fine, but there is a fault condition on the charge point itself. Turns out the fault condition is their PEN detection. At the moment, the charge point isn’t doing anything. (No...
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