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highest

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  1. B

    pfc testing

    can any body give me the reason why when testing pfc and pefc at a three phas DB why do you have to test all phases to neutral then all phases to earth why not just one phase surely there will be very similar results if not the same just thought iwould ask cause it was buggin me..
  2. C

    highest reading allowed for 10mm gas and water

    just a quick one guys, i have a practical test on thursday at college and this is a question what they could ask but i cant find the answer, cheers
  3. M

    Schedule of test results - RCD results

    Hey guys, Just a quick one..... on the schedule of test results, which RCD reading is recorded; the highest 1x or the highest 5x? :rolleyes: Thanks in advance. Matt
  4. M

    Highest ze on a tt

    We've had a lowest thread how about the highest? obviously scuppered a bit by how high the tester goes but i've had 1147ohms once, terrible ground
  5. J

    rcd times at x1 and times x5

    this is confusing me. now i know that the rcd times are .... bsen 61008 and 9 should be less then 300ms bs 4239 should be less than 200ms rcd sokets at 200ms but say i have tested a rcd at x1 180 degree = 35.2 and x5 at 180degree at = 12.6 if i remeber correctly is it x1= max 50ms...
  6. N

    Main Switch question!

    New to the trade and lots to learn! So I've filled in my very first installation certificate - but what is the Type BS(EN) of the main switch on this BS3036 semi-enclosed fuses consumer unit? It's 250V, 80A but no more markings - is it relevant for this old board? Also why does my tester not...

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