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  1. P

    Filling in test resullts for 3 Phase/which Zs?

    Hi Guys I've just completed my first 3 phase installation. A 3 phase CU (Proteus) in a church extension. There are 12 x 230V circuits feeding sockets , lights, heaters, etc. 1. Do you record all circuit test results on the same page or use one page for each phase? 2. Do you record Zs at DB...
  2. M

    rcbo tripping before ramp test is complete

    hey all i was wondering what reason would be behind an RCBO tripping out before the ramp test has finished and comping up with trp? thanks
  3. HappyHippyDad

    Low IR readings on lighting circuit - 0.654 Mohms

    I have spent quite a bit of time today trying to understand why I am only getting 0.654Mohms on the upstairs lighting between Live and neutral (at 250V)!!! L-N 0.654 Mohms N-E 25.11 Mohms L-E 24.7 Mohms I get almost the same when measured at 500V (cant remember exactly but about 0.6Mohms) I...
  4. F

    Dual RCD problem (interconnection between lighting circuits?)

    Hi guys, looking for abit of help. Carried out a consumer unit change today, carried out all dead testing etc, all came back ok. New board is a twin 63a RCD. With the following configuration both RCDS tripped straight back out. RCD 1 *upstairs lights *Downstairs sockets...
  5. J

    Ir test on bs 3036 wylex board

    Hi all, l recently did a eicr on a fish and chip shop. 3 phases (only one phase in use by chip shop). Earth conductor is welded together to each phase by TN-S earthing system means. When it came to the IR test, l tested the norm tests, L-E, L-N & N-E. Bearing in mind that we are now supposed...
  6. J

    voltage query

    Hi, iv changed an outside light for a customer and completed all the necessary tests. After powering up I got 230v between L and N but strangely 120v between L and E. The tests were done at the jb prior to the light fitting. Any ideas what could be causing this? Thanks in advance!
  7. S

    New Zealand tamper fault on Optima Compact

    Hi. I've tried to fit an Optima Compact alarm panel with built in key pad. Upon energising there is a tamper fault. I've removed all zones & linked them out but still no joy. This is the reason I hate doing alarms & will avoid in the future! Any ideas please??:devil:
  8. F

    Hyundai Panel expansion gap?

    I have not yet discovered in any of the manufacturers data a specific expansion gap between panels. Any input on this to give a newbie a break Please.
  9. D

    neutral earth fault

    During my zs tests on the ring circuit the rcbo trips. The breaker also trips when I take a Zs on the cooker. I have carried an insulation resistance test on the cables and have found a dead short (0.00) Mohm reading on the neutral and earth on the ring circuit. 137 between line and earth and 87...
  10. S

    looking for exact difference between 1652 and 1652b

    hi all as above im looking for the exact functional difference between these two testers as im looking at getting a 1652 thanks in advance rich
  11. H

    What's the difference between all of these units...

    1) Power Unit 2) Super Set Back Amplifier 3) Super Set Distribution Amplifier 4) Set Power Unit I don't know what one I should get to replace my old box which says it's a Power Supply Unit.

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