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  1. C

    help needed! my brains been frazzled!

    installed a new cu for some one yesterday, its a tt system incoming voltage 240v and incoming earth from spike 100ohms, all the circuits tested fine every thing works as it should! now today i went to the same place to change the other small db that supply's 3 circuits the other end of the...
    • coxy84
    • Thread
    • aus circuits help led needed other tested tester tried
    • Replies: 35
    • Forum: Australia
  2. N

    Ze/Zs differ (wildly) between no-trip and 'regular' settings on Fluke

    Hi, A puzzling issue today. When I test for Ze and Zs on my Fluke I tend to go for the 'no trip' setting out of habit. I believe whether there's a RCD or not this test might take a little longer to get the reading (as it saturates the RCD with a DC current) but it's the same result as the...
  3. D

    Effect of ZS and RCD trip Times...!

    questions!!!! chatting to some body today and well they were going on about ZS can have effect on RCD trip times!! is this true? never heard about it before..! any body clear this one up??
    • DurhamSparky
    • Thread
    • aus effect rcd saying tested times trip
    • Replies: 15
    • Forum: Australia
  4. T

    Testing motor of vacuum cleaner

    My brother has given me his faulty vac withe old "here you are, your a leccy fix this" Anyway now have it in bits in front of me IR tested the mains wire once disconnected from motor and its ok, tested between the terminals on the motor with some steinels and its belling out, does this mean the...
  5. N

    weekend of tripping RCD call outs

    Staturday morning phone goes RCD tripping ,fault fault on a fridge ,easy , saturday afternoon Call out RCD tripping in a busy hotel , found an extension cable cable that no one new what it was was removed plud and told them to call if anything wasnt working ,and yes they did it was the TV supply...
    • nickblake
    • Thread
    • aus cable fault rcd socket tested tripping weekend
    • Replies: 5
    • Forum: Australia
  6. P

    Split Load Board Certification Question

    Hi,How does everyone fill out the certs for a split load board to include the RCDS if issuing a DOMESTIC ELECTRICAL CERTIFICATE? How do you include the details of the split loads and the submain RCD characteristics into the boxes provided? Do you test RCD tripping times for each circuit even if...
  7. P

    Imersion heater testing

    Hello fellas Been asked by a letting agent to go and find out a problem on an imersion heater? She is telling me If they leave the immersion on for a couple of days its trips? Couple of question for you guys 1/ To tested the immersion heater element carry out a...
  8. R

    EIC Clarification RCD

    Evening All, When filing out a EIC test schedule I test all circuits that have RCD protection individually ?.I have a split load board and as such each RCD controls a number of circuits.Do I have to test each circuit and record each value 1x and 5x and do 180 degrees.So if i have 5 circuits...
  9. I

    Strange Fault

    Hi Guys First post on here for some time. I was called to a fault earlier today which I cant get my head round. the lights in the house are flickering. Not all that unusual I hear you cry, however they are flickering when they are switched off, and at random times, often in the evening or...
    • ian
    • Thread
    • aus fault roman strange tested times voltage
    • Replies: 7
    • Forum: Australia
  10. banny07

    smoke alarms help

    hi guys, is it OK to install smoke alarm on the wall rather than ceiling? customer don't want to see this on glass ceiling(light-well) in the landing/stairs area . cheers
  11. P

    testing

    just want to know what everyone els thinks 5 year old comercial building got origonal test results for comparison 32dbs with about 12 circuits in each. now they were quoted to do 100% of the inspection and testing then they asked me i said i would test about 4 circuits on each db and compare...
  12. S

    underfloor heating! enigma

    hey ... i have a dilemma! recently installed new kitchen ring on new mini c/u as no rcd protection... all good! wired a fused spur to accomodate underfloor heating which was later installed by myself ... tested prior .. all good ... laid .. tested .. all good .. was working...
    • simonmoon99
    • Thread
    • aus heating installed later tested underfloor underfloor heating
    • Replies: 0
    • Forum: Australia
  13. O

    RCD problem

    Hi I've recently had a new rcd fitted to my very old consumer unit( the old fuse wire type ) after the sparky tested the old one and said its not working. After one week of being fitted it has tripped a number of times. sometimes once per day sometimes more or even a full day being ok! He came...
    • ogsvaldo
    • Thread
    • aus circuits fault problem rcd spark tested
    • Replies: 9
    • Forum: Australia
  14. jibjob

    Intermittent Fault Headache

    Visited a property today that has an intermittent earth fault. RCD trips sometimes 3 times a week sometimes once a month but it's been going on for some time now and owner wants it sorted. IR'ed across N/E and L/E and all ok until the boiler is switched into circuit. Then the L/E values dip to...
    • jibjob
    • Thread
    • across aus boiler circuit fault intermittent tested
    • Replies: 14
    • Forum: Australia
  15. D

    Does cold weather affect RCD's?

    Does anyone know if cold weather can affect RCD's, I have just been testing the 63A 30mA RCD in the garage, this previously tested absolutely fine when doing the test at 30mA, but now it fails to trip in under 400ms, however when doing the 5x test it is fine :confused:, the test button works...
    • down2earth
    • Thread
    • aus doing properly rcd rcd's temperature tested weather worked
    • Replies: 2
    • Forum: Australia
  16. L

    rcd probs

    recently went to a client house to investigate a trip main switch rcd. on getting the the client had already reset and everything was working just fine , 4 week later and go another call saying this time it had tripped through the night whilst everyone was sleeping . now ive tested rcd on both...
    • lee mcgregor
    • Thread
    • aus being house maybe night rcd tested
    • Replies: 11
    • Forum: Australia
  17. steamboatwilly

    RCBO Trip Times

    Folks, Tested an RCBO today on a 16A 2.5mm spur......the 1 time was 18.7ms and the 5 time was 39ms. You'd normally expect the 5 time to be quicker/lower yes?
  18. C

    RCBOs . . . all tripping at same time.

    ( 1 ) What would cuase a consumer unit, with RCBOs installed, to all trip out at virtually the same time, at about 7am every morning, but at no other time ? It's a TT earthing system, with overhead supply cables linking the house to the pylon in the street. Then two cloth covered live tails...
    • chocolate
    • Thread
    • aus cables earth house rcbo rcbos tested time tripping
    • Replies: 3
    • Forum: Australia
  19. J

    RCD BS4293 ok or not

    Hi all, I installed an outside security light the other day and utilised an existing switched fused spur which was off the down stairs ring. The ring was protected by a 32amp breaker and a 30mA RCD (BS4293 type). When tested the rcd did not meet the 40ms disconnection time as per bs7671 regs...
  20. C

    Periodic Testing Percentage

    Hi guys just looking for a bit of advice. Just started a periodic test of a hotel, so far I have found the installation to be in quite good condition. What percentage of the installation do I have to test? I have read in guidance note 3 that you can do sample testing which is just a percentage...

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