rcd tripping

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  1. tony9i9i9i

    Faulty RCD tripping on the button but not via the tester

    What should you do if a client has a CU that is a split board protected by 2 * 63Amp 30mA double pole RCCDs, you took Zs and tested both RCCDs by their buttons before starting work. But on completion of work, one of the RCCDs, when tested via tester, would not trip, the other operated as expected!
  2. A

    Adjusting tripping time.

    Hi all, Curious one and hopefully some one of you could give me some advice. A customer has had a steeltech shed installed at their premises. A large one. Wants 3x light fittings and 5 double sockets intalled. There's an electric roller shutter door on the shed also to be plugged in. My plan...
  3. cliffed

    RCD Tripping intermittently

    Called out to fault on RCD tripping maybe twice in a month for sometime. Did all the tests & found RCD was faulty, Refitted a new Rcd Type A which made matters worst. So refitted original RCD Type AC for the time being. Insulation Resistance measurements were 20 M ohms. Ring continuity fine...
  4. H

    Intermittent RCD Tripping - opposite side of board

    Cant get my head round this :( I understand N-E faults cause RCD's to trip, but I cant understand why on these 2 occasions, googled allover but no real answer. I have 2 intermittent faults on the go, one Dual RCD board, one split load, 1 RCD. Dual 2 RCD Occasionally the left RCD trips when...
  5. archee

    UK RCD tripping when using loft socket.

    Afternoon all, I have an issue with the loft socket. When we moved the previous owners had a 2.5mm cable going up from the CU Via FCU however, the wiring was old and did not have earths(they cut them off). So I decided to completely rip out the old wiring including unnecessary spur and put...
  6. N

    RCD Tripping when bypassing kitchen circuit straight from main fuse

    Ran a 4mm straight from main fuse removed busbar and put 4mm into bottom of breaker, RCD keeps tripping
  7. I

    Solar New Solis inverter trips house electrics

    Hello there I have just installed a new Solis S6-GR1P3.6K-M-DC Inverter - this replaced a 10 year old+ Sungrow inverter that failed/out of warranty! None of the wiring set up has changed other than a new AC plug for the Solis inverter. I have a 16-panel 4kw system. It seems, when the inverter...
  8. Lainan01

    Real life examples of RCD fault

    What’s a real life example of an imbalance between live and neutral? For example, a faulty tumble dryer can trip a RCD on a split board - so I would assume there is an imbalance because of the difference in the magnetic flux between the Live and Neutral coils. But what would be the actual...
  9. E

    RCD tripping on test

    Hi, while testing the new board I installed I got to the live testing at the sockets one of the RCD's kept tripping during the loop test, the other ring tested fine so it's not the tester, the insulation tests where all good. Unfortunately I didn't have a residual current clamp meter with me, to...
  10. A

    Shared/borrowed neutral?

    Hi, I have an ongoing issue with an RCD which keeps tripping when bathroom light (not on RCD) is turned off. The issue doesn’t happen every time the bathroom light is switched off but only ever trips when I turn it off. It happens mainly at night and there doesn’t seem to be much of a link...
  11. OnlQQker

    So, I Took Alice Out For Her Afternoon Walk And An Rcd...

    Conversation developed with a middle aged lady who has recently lost her husband. Note to self, stop walking dog around the graveyard Anyway this lady who I find extremely polite and respectful, said to me her electrics started tripping out early Saturday morning @5:00am To cut a long story...
  12. T

    RCD tripping like a road drill!!

    Installed and Ecostrad iQ wifi radiator with RCD. The radiator area started making a 'drilling' noise and noise traced to RCD tripping like a drill. Help?
  13. Phyllis

    RCD tripping when socket is turned OFF

    Hi, No electrician background here, so novice question! I have a new (<6 months) plug socket that whenever I switch it OFF it trips the RCD on the fuse box. I’d previously had an issue with the RCD and ‘socket’ switch tripping (all sockets are on one switch on the fuse box) which was traced to...
  14. R

    Damaged 415v 5 pin socket needs replacing for RCD type.

    I’m replacing a damaged 415v 5pin socket in an engineering shop which is been used for welding, this will need to be replaced with RCD socket to keep up with the regs. but my question is will the welder trip the RCD.
  15. N

    Random RCD tripping out

    Good evening all. I’m a new member and found this place by searching for some info on a problem that has developed. I used to be a sparky in the Navy so have some experience, did my first year but never completed the training. So back ground. No issues for over 3 years. Did have a RCCB...
  16. mikeyking

    RCD tripping... What other problem determination can I do?

    Unfortunately my electrician is too busy installing EVs so I've kinda been left on my own for now! I have an issue where the RCD labelled #1 in the attached picture trips as soon as I attempt to turn the immersion heater on. I've had the immersion heater replaced (well, I couldn't get it out...
  17. J

    RCD tripping straight after smart meter install

    Hello, Firstly, I'm aware other people have posted similar topics on this forum, I'm not trying to create a duplicate, but more looking for advice as to the distance between my smart meter and the tripping RCD. I had a smart meter fitted yesterday, and straight after the installation, the...
  18. I

    UK Rcd tripping, 77v on earth bar

    So to start off with i’ll tell you i’m a young electrician, 23, I am qualified but obviously will always be learning. Was carrying out an eicr early last week. During the eicr I went to disconnect what I thought were the earths for the (switched off) kitchen ring, as they were in the...
  19. B

    RCD keeps Tripping, need some Advice

    My RCD began to trip several months ago. I narrowed it down to a fridge/freezer in the garage. However, after turning this off, its now started to trip again due to another fridge/freezer (in the last few weeks). Either I’m incredibly unlucky and both appliances need replacing, or there’s...
  20. cliffed

    Rcd tripping times on EIC

    Testing Rcd trip times would you write down 28.4ms or 28ms If say 28.6 would you write down 29ms.

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