trip

  1. S

    RCBO trip times - no, not the usual what should it be . . .

    I was doing a board change today and 10 out of the 15 RCBO's were returning a value in the region of 19ms at 1x and 30 at 5x. Tried more than 1 MFT (both Metrel but got the same sort of results). So this is still within the 40ms's but with new RCBO's would you personally accept or return them?
  2. Simonslimline

    ELI on no trip with Megger MFT

    Does anyone have issues with this test and how accurate is a No trip test? I find my readings seem to change a fair bit testing the same circuit a few times. This is using a 1730.
  3. S

    Water heater stat without over heat trip

    If doing an EICR and you find an immersion heater stat with no over heat trip do you code it? Another spark I know makes it a code 2 - unsatisfactory. Thoughts please
    • southside elect
    • Thread
    • heat heater trip water without
    • Replies: 4
    • Forum: UK Electrical Forum
  4. I

    rcd trip

    why would 2 rcds trip at the same time on a dual board
    • iamelectric
    • Thread
    • electrician rcd simple testing trip
    • Replies: 19
    • Forum: UK Electrical Forum
  5. B

    Nuisance RCD trip.

    Customer called me out today. Installation has been fine for years until they had a 24 hour power cut last week. Since then the cooker circuit constantly trips the RCD. Dual RCD Doepke board. TNCS. I disconnected the cooker switch and it still tripped. Had a look inside the CU and no loose...
  6. J

    Peculiar results on rcd trip test

    Afternoon everyone, got a weird one for you all. Installed electric shower, had to upgrade consumer unit at same time, carried out all dead testing etc, Ze and Zs all good, insulation test perfect HOWEVER when carrying out RCD trip test from the connector block terminals in the shower the RCD...
  7. T

    RCD doesnt trip on test.

    Hi I have a 6 way split load board located in the shed and served by 10mm SWA. Anything on the unprotected side of the board tests and works fine. However this is not the same for the protected side. I can plug a radio in and the circuit does not trip, but if I use the lawn mower or a drill the...
    • Templer
    • Thread
    • button doesnt neutrals protected rcd test trip trips
    • Replies: 50
    • Forum: UK Electrical Forum
  8. P

    Complex motor start cuasing RCBO to trip problem

    HI, I have a difficult to diagnose problem. I've had two qualified electricians try and sort it, but no solution yet. It is tricky (interesting?) and would love to hear comments/suggestions. I have a long barn conversion. Supply enters one end into a CU. There is a 50A 30mA RCBO feeding a...
  9. S

    RCD trip help

    Just been called out investigate RCD tripping on downstairs ring at my parents it just went in the early hours with no history. Have unplugged all appliances from the 10 sockets on this ring and switched all sockets off. There are no other appliances fed from this ring other than those plugged...
    • sirocco
    • Thread
    • earth fault other rcd sockets trip
    • Replies: 51
    • Forum: UK Electrical Forum
  10. C

    NEW Fluke 1653b tester RCD Displays lead for a second on first rcd trip test

    Hello Has any one got a fluke 1653b tester or experienced the same thing with another teser. I have just bought a brand new fluke1653b tester. When i carry out a standard rcd test the first time the rcd trips on my meter the word "LEAD" flashes up for about 1 second, could be less, and then the...
  11. B

    Nuisance trip?????

    Evening gentlemen, got one I want to run by you. Did a new kitchen install a couple of months ago, within this installation there was an induction hob and single oven. A new 10mm cable was run to supply both appliances, through a 45A cooker switch, which supplies the cooker outlet behind...
  12. C

    RCBO Trip times very strange.

    Hi when testing an rcbo trip times with 2 vapour proof fittings switched on the times were 378 on times 1 and 154 on times 5 but when i test the rcbo with the vapour proof fittings switched off the times are 21 times 1 and 19 times 5 has anyone had this before. i am using a calibrated robin...
    • cdmh electrical
    • Thread
    • connected fittings loads rcbo strange times trip
    • Replies: 8
    • Forum: UK Electrical Forum
  13. P

    Will 2 out of 3 Phases Trip a 3 Phase Breaker?

    Hello, We've had an issue with a 3 phase piece of equipment that was tripping the 3 phase breaker as soon as it was turned on. On investigation (by a certified electrician) he said it was the equipment at fault. I raised a return of the equipment and the new one arrived today. To be able to...
    • Peter-L
    • Thread
    • 3 phase breaker out phase phases trip
    • Replies: 23
    • Forum: UK Electrical Forum
  14. E

    shock!! no trip!

    When I wired my ccu I fitted all rcbo's. and tested all trip times etc. all passed!! In the garden mixing cement a few weeks later and water got all around the extension lead near the plugs! I didn't see this because it started getting dark! But Jesus I felt it with a rattle as I unplugged the...
  15. BigSi

    RCD Trip Times

    I was talking to one of my friends who just had his NICEIC DI assessment (about five months ago). We got talking about RCD trip times, because he was told that what he believed in (and myself) was wrong? RCD (30mA) TRIP TIMES (17th Edition Regulation 411.3.2.2. – Table 41.1) For a...
  16. A

    Will RCD Trip? Testing Prior To Consumer Unit Upgrade.

    If asked to replace a BS3036 fuseboard with a Dual RCD Consumer Unit, you would have to test all circuits being connected to it etc for the EICert. But, while doing this yesterday I have to admit that I realised that I don't know what test result would indicate that an RCD would trip if 'put...
  17. B

    New Induction Hob causing oven to trip

    Hi My ceramic hob became cracked (only 18 months old since kitchen re-fitted) so purchased an induction hob to replace it. I took out the old one and replaced it with the new hob Since then the electric oven (at the other side of the kitchen) seems to want to trip the fuse board. I have...
    • boris
    • Thread
    • causing hob induction induction hob new oven trip
    • Replies: 6
    • Forum: UK Electrical Forum
  18. N

    Actual Trip Value

    i know some, probably tel will make a joke about this, ..i can see it coming so i'l get in first :this isnt about bad value day outs:) sorry tel :) So ive read many posts on this subject and opinion seems divided. On testing a MEM 100he mains switch rcd with all breakers off,link from the main...
  19. J

    110v transformer blowing trip

    Ive had this transformer a few years and never had a problem. I used it about 2 months ago then put it in the shed. I have now taken it out and its blowing the trip in my house for some reason. The shed I left it in has been leaking water and I have had to clear all my tools out of it but have...
    • jay4321
    • Thread
    • 110v blowing radiator reason transformer trip water
    • Replies: 57
    • Forum: Talk Electrician Forum
  20. B

    Rcd, small puff of smoke and then won't test trip.

    Hello fella's, here's one for you. First post from me and I'd like to know any ideas. I went to a job today where the guy has had a new M2 board installed. Guy previously fitted m2 rcbo (6a) to a lighting circuit (no problem), 1mm live and neutral and earth going off to circuit (no problem)...
    • beckryl
    • Thread
    • brand circuit rcd small smoke test trip won't worked
    • Replies: 27
    • Forum: UK Electrical Forum
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