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tripping

  1. S

    RCD tripping for bathroom heater

    I've installed an outdoor 2200W IR heater (also rated for bathrooms) in my bathroom which is connected to an outdoor IP66 rated switch and a non-latching RCD plug at the end of a 10m (2.5mm sq) artic flex outdoor cable. The last 2 times i measured, the heater worked for 17 and then 8 minutes...
  2. D

    Certsure testing type a rcd

    fluke 1653b tester. carrying earth loop test on type a rcd tripping
  3. P

    RCD tripping when E7 switches on

    Firstly i'll point out that i'm the property owner and the installer of the majority of the electrical fittings in the building, including Main & E7 DB's. now the history lesson... sorry, but it is relevant property is 230 years old, I have owned it for 42 years. it was semi derelict at...
  4. K

    UK RCD keep tripping.

    Hi All.. I have a 16mm 3 core swa feed a 9way split board in shed, 30m from incomer .. from the split board I have run a 10mm 3 core swa to 2 way board for hot tub. This has a 63amp rcd in it.. the other end at the split board is also a 63amp rcd on its own of one side of the split board.. this...
  5. C

    Tripping Shower

    I have a 9.5kw shower running from a 40 amp rcb. About 10 minutes after turning the shower off the rcb trips. This has only just started, the shower has been in since we moved in. There is no pull cord switch, or rocker switch for the shower. Any thoughts why this might be happening?
  6. T

    UK Fridge tripping RCD via one socket but not another

    Hi, We have a ten year old fridge-freezer plugged into an older socket (20 yrs plus I should think). It started tripping the RCD on the consumer unit. I assumed I needed a new fridge and, to avoid repeatedly rebooting all equipment on the circuit while I sourced one, I plugged it in via a...
  7. P

    Storage heater tripping

    I went to a call regarding a dimplex storage heater not coming on during economy 7 hours. I did the basic tests and the storage heater is on an old board with cartridge fuses, and the fuse was fine and the FCU switch was also okay. I connected the heater to a 13 amp plug and every time it was...
  8. T

    Plumber's reason for RCD tripping.

    Plumber changes boiler and RCD main switch starts tripping at various times when its firing up or soon after. (I was there doing other work). I test ring (that its connected to) and get +299Mohms on all tests. RCD doesn't trip at x0.5 and trips at x1 and x5, all fine. I've suggested to them...
  9. B

    Advice needed With Oven tripping Fuse

    Hi, its a bit of a long one, but i really can't figure out whats up? I had a ex-display built in double oven for a while and though the fan oven part worked perfectly, as soon as you tried to use the upper oven/grill the fuse would trip out every time. I finally decided to replace the double...
  10. N

    Tripping mcb and rccb

    Hi guys. Just want some advice or thoughts from the pro's. So I'm an engineer who works on espresso machines. Going back a few months ago now I got called out to a machine tripping the power, in my line of work this generally means one loop on the heating element has shorted to ground or one...
  11. 1

    Mainsboard tripping

    Hi there , My mains board keeps tripping and I just need some more insight on what the problem could be , the main switch is an 80amp , cooker 32 , sockets x2 32 , heating 16 , lights x2 16 , heating 16 and garage 16 , can I just replace the main switch to a higher rated one ? Any advice...
  12. B

    RCD tripping time (in factory)

    Hi, bit confused, have an RCD Main Switch 250A with variable settings for mA and mS, now this is set at 1000mA, 1s time delay, I’m getting 99ms with set on 1000mA and no time delay my tester does not do 1s delay, now this board feeds another, so will I put 1099ms for tripping time? I was just...
  13. The apprentice

    rcd keeps tripping

    hi there there split rcd board with rcd keeps tripping maybe once twice sometimes 3 times a day turned the washing machine on tripped straight away got rid got another’s one now it’s tripping jus now and then
  14. D

    Megger 1552 (Hi current test not tripping 30ma rcd)

    Hi guys, I own 2 megger mft 1552 testers. I recently found that loop readings on both testers give me high Zs readings on final circuits protected by 30ma rcds on low current. If I select the hi current setting I get a reading I expect to achieve, but the hi current test never trips the rcd...
  15. F

    RCD Tripping Randomly When PC Plugged In

    Hi everyone I have a frustrating problem which has recently developed. I kept finding that my power was tripping. I could just reset it then everything was fine for a while then it would happen again. It might happen once per day or it might happen a few times or it might not happen at all for...
  16. A

    GFI keeps tripping

    I wired my garage this summer. Installed panel, laced it in. 24 circuits. Over 200 plugs lights ect. No issues. It all works fine Except 1 circuit. 15 amp runs from panel to 1 gfi. Loads out to basic 15 amp plug. From there to gfi number 2 in the bathroom. In on the line terminals of course...
  17. M

    Industrial why does 35KVA Transfomer for spot welding tripping?

    hi , Input primary 2 phase 415V with SCR control . its was trips after trigger SCR . if direct connection primary 415V without SCR , no trips happen . I was wondering root cause of over current 100A MCCB keep on trip ? Seeking advice regards
  18. msattitude

    RCD 1 Tripping When Kettle Turned On

    Hi, Have an issue with the RCD1 tripping each time I turn on the kettle. Have tried 3 different kettles and they all trip it yet all 3 kettles work fine. The confusion is, the kettle is plugged into socket that is run via RCD2 NOT RCD1 This is the set up: RCD1 trip controls: Oven Boiler Kitchen...
  19. happyhippydad

    Why isnt the RCD tripping?

    I have just completed an EICR. The install is TT, Ze is 308 ohms. Zs on all circuits is <1.5 ohm due to bonding. There is an up front 30mA RCD which trips with the push button but does not trip when tested either at a socket, light or actually in the RCD itself. I know the RCD is faulty as I had...
  20. A

    Commercial Fridge tripping

    Hi My name is Allen Brauteseth from Cape Town South Africa. I am a Qualified electrician and am sitting with a problem being I have a commercial fridge for cold drinks that trips out the earth leakage after running for 10 minutes please could someone help me as the supplier says there isn't...
  21. A

    Random RCD's tripping

    Hi to everyone, I'm new on the forum and a almost a new in this world too. I got my full qualifications done in April but never done any job yet. So I'll try to explain the situation in the best way I can 3 double light holder on the outside of a wall are on a single way switch. The switch is...
  22. S

    RCD tripping under high load on 2 circuits

    I’m in desperate need of someone with great fault finding knowledge. I have a dual rcd consumer unit as seen in picture. The left hand side rcd trips when anything with a high output like a tv for example is turned on in any sockets protected by the left rcd. The left rcd also trips when trying...
  23. T

    Memshield 2 RCBO's tripping when using two way radio's

    We are going through a building (now unoccupied) to identify from old drawings and what circuit charts there are to prove what does what before safe isolation to do alterations and remove. We are doing this for the ground floor however the boards are in the roof area. To do this we are using 2...
  24. K

    RCBO Tripping

    Hi all, new here, looked over the forums and on google couldn’t find much Info. I have a consumer unit where the sockets, cooker and shower are protected by an RCBO. I had to replace to sockets with ones that have built in USB. So switched off the MCB for sockets (as you would) I would have...
  25. M

    Nuisance tripping after splitting a ring main

    Evening everyone Had to re post as I started a post within a post:grimacing: here's hoping I'm posting in the right part or I have started off on the wrong foot. Long story Asked by a friend to look at his friends electrics as the kitchen ring was tripping the RCD. New colours cable on 32amp...
  26. F

    Nuisance tripping.

    Hi all, I’ve just completed a large house re/ new wire with new 15 circuit split MK board. Test is fine but have low IR on some circuits, board randomly trips rcd on one side no pattern. Its a big house lots of tech plugged in etc, so I’m thinking update from B to C type mcbs Incase...
  27. P

    Appliances tripping sockets

    Hi all, I'm hoping someone has an idea what this could be as I've had two electricians round and they've not been able to sort it out. Various things are causing the sockets in my house to trip, from the fridge door and cooker hood, to the on/off button on the coffee machine and reading lamp...
  28. B

    Domestic RCD cutting without physically tripping. a

    Hi I’m new. I have a flat in Madrid which was re-wired in 2011. The fuse box has a single pole 25A breaker, plus a 2P 25a breaker. These feed an RCD known here as a “diferencial”. When I use the oven plus hob plus aircon the power goes off but none of the consumer unit switches physically trip...
  29. E

    Domestic RCD not tripping - tech advice

    Hi Hopefully some can explain this perplexing issue I'll try and explain the situation as best I can, hopefully its not to rambling -maybe its common knowledge but I'll bow to anyones supperior understanding During an EICR checked test button RCD would not trip - checked with tester no...
  30. A

    Large oven tripping RCD

    Hi all. Looking for a bit of advice. Customer has a new large induction rangemaster cooker with a total power of 14.8kw. Currently on a Hager board with a 50a b mcb and an existing 6mm cable. As soon as oven was switched on it tripped the RCD. Taking diversity into account the cable should be...
  31. S

    Domestic Help needed with RCD/Spa tripping

    Hi all, Hopefully this has posted in the right section. Basically we have bought one of those inflatable spa’s. I also bought a BnQ pre wired outdoor socket. The spa pump has a pre-wired plug with built in RCD. I plugged this in too an outdoor socket which is pre-wired and has its own...
  32. GBDamo

    RCBO socket circuit tripping.

    I'm stuck here fellas. I have a radial with only one double socket outlet in 2.5mm T&E on a 20A RCBO running five meters in surface mounted trunking. TN-S, R1 and R2 good, 243V measured, Ze 0.12, Zdb 0.29, Zs 0.36, IR all +200MOhms. RCD trip tests all ok at 0 and 180 and ramp 24mA. Now these...
  33. S

    RCD tripping when switching oven isolator off

    Hi all. I was called to a house recently where the occupier reported that when they turned the oven isolator off the RCD would trip. So I tried it and that's exactly what happened. There was nothing switched on on the oven at the time. When the oven is on it works fine. It is an integrated oven...
  34. P

    LED'S keep tripping the RCD when switched off?

    Hi everyone, I have recently replaced 10 old strip lights in a church hall with new LED strip lights. I ran an insulation test and all seemed good. I switched them on and all seemed good. I had a call from the vicar to say that they are not working so went back to site to find the MCB had...
  35. rolyberkin

    Metal Cut out - Fuse Type

    Hi can anyone advise what type fuse was commonly fitted in an old style metal cut out, the head is being changed imminently by the DNO but I would like to know what is in there? Thanks
  36. M

    RCD tripping with PV

    I have been working my way through an installation looking for why the RCD trips in light misty rain. I have eliminated all outside installations the only thing left outside the building are the solar panels. I know little to nothing about the PV installation. So my question is, is there...
  37. C

    RCB Tripping Advice Please

    My Son is in the process of redesigning his kitchen and one of the issues is that the electric cooker needs to be moved, approximately another 2 to 3 meters or so. The current wiring is the old red and black 6mm running from a consumer unit situated some 60 feet away in the front room. This is...
  38. Myady1

    Hello can you help me fix my house?

    I dont know much about electrics. Here is the issue. Electric tripping (not blowing) consistently after about 1.5 hrs. We narrowed it down to one of the fuzes on the box. When we turn that off the rest is fine. We have unplugged everything systematically from that line to try and find out...
  39. N

    Infrared heater tripping RCD on high setting

    I’ve just installed an infrared heater for my conservatory. It’s plugged into a socket. The heater is happily running on the second heat setting (1600W) but when I turn it up to the high setting (2400W) after a while it trips the breaker. Any suggestions on how to solve this please?
  40. Y

    Main rcd tripping even though its 100 ma

    Hi There's a workshop outside the main building with a couple of sockets protected by a 30ma rcd. Even though the rcd inside the main fuse box is 100ma the 100 ma rcd trips without the 30ma not tripping. Changed 30ma rcd still same. How can I get the rcd in the workshop to trip without tripping...
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