trips | Page 9

trips

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  1. C

    Can't test RCBO as main RCD trips first - what to do?

    As above, came to commission a circuit yesterday and got to the last step (test the RCBO) and on 3 attempts the main RCD went instead. TT installation, no markings on front of RCD but assume must be 30mA non time delay. The obvious answer is quote them to swap for a type S RCD but it's a big 3...
  2. W

    help with rcd trips, France

    Hi guys, need some advice please. I've got a problem on a French 3 phase CU. Basically the 3rd phase rcd trips when the boiler circuit on the 2nd phase is on whilst a sockets and lights circuit on the 3rd phase is on. If i turn off the sockets and lights mcb (there on the same circuit) then...
  3. W

    Socket screwed back trips rcd...

    Fitted a socket for a customer today, Job done.... 2 hours later call from the customer " All my power is off" turns out to be the rcd tripping, Went back checked the socket and all was fine, checked the rcd with the socket unscrewed from the wall and no problems, screwed the socket back and rcd...
  4. H

    Voltage Trips

    Just wondering how sensitive the old crabtree voltage trips are compaired to a RCD ?
  5. M

    mcb trips when downlights are turned off

    HI Guys I've had a call back to a job. It seems that a 6A light circuit mbc trips when some kitchen downlights are turned off and occasionally on. Its an intermittent fault. I replaced a light switch on this part of a circuit and looked a a poor contact on a 12v fitting (its a return to fit...
  6. jibjob

    Another RCD problem

    Fitted a standalone fused 30mA RCD unit today protecting a spur from existing circuit wired directly from MCB in CU. RCD FCU is mounted adjacent to CU. CU has 100mA RCD upfront (Crabtree) & is populated by 60898 MCBs. 30mA RCD x1 test was fine (28ms) but the x5 test trips 100mA as well as 30mA...
  7. W

    TT installation help

    Hi all Job on a farm, which is TT, The supply conductors go into a 100 amp 4 pole RCD Mainswitch ( In a plastic Enclosure) Then off to an MCCb Board which then feeds Several sub mains around the farm that all Have 30 Milliamp RCD Mainswitch Problem the customer has is when their is a fault at...
  8. J

    9.5 kw shower on 6mm ?

    just been to a job , saw that the shower 9.5 kw is on 6mm t&e the cable goes in the wall and under floor boards ,No insulation, to the board (A cable run of no more than 10 m) . I said downgrade the shower to 8.5 max. Is it really necessary ? never quite sure , its borderline to me .
  9. S

    RCD Trips

    Two jobs both identical with panels and invertors ect. Ie: Aurora 3.6 TL , 14 panels 235w. Both using Wylex garage boards 16amp mcb and 63a 30ma RCD 4mm T&E. One starts up and works no problem the one next door trips RCD. Done all checks and test all ok. Invertor goes through start up all ok...
  10. S

    RCD nuisance trips

    Hi there, I've got an old, Wylex, 4-way, rewireable fusebox, water mains providing my earth (PME to come) and a 100A service fuse. The circuits are: i) ring main ii) lighting (two circuits in single fuseway, one of which is a single light) iii) immersion heater (not used) iv) cooker and hob...
  11. S

    megga mft 1720 trips rcbo's

    Any one else come across the new 2 lead no trip feature trips some brands of rcbo's? so far i've found it trips wylex, crabtree and doorman smith. is their any work around or have i just got a dodgy meter?
  12. F

    lighting circuit that trips

    Hi can any one help? I have a customer that says his lights keep tripping out when the shower is on in the ensute and bathroom at seprate times, the wiring is 4 years old the lights are mains gu10 (not ip rated) there is a inline fan with a lv light in it, there is no sign of moisture and no...
  13. B

    Single phase ccu trips out 3 phase Board

    :cry_smile: My facial expression with this job I can't figure out. Hello first post on here and been searching to see if they was a post like this online. In a church building, there is a 3 phase board that feeds a wylex single phase ccu with a swa cable 3 core but not sure on size, my best bet...
  14. R

    Intermittent rcd tripping help?

    Hi guys, I've got a customer who's rcd is tripping every few days. Any tips on the process to follow cause it never trips while I'm there. Ive tested the unit itself and it's working ok? Thanks
  15. K

    Questions about a shared supply. A fault next door trips my ELCB.

    The semi-detached house next to mine is being refurbished, including rewiring work. Our electricity meters, fuseboxes etc are back-to-back on the party wall. My ELCB has tripped a few times recently, and I eventually realised that it happens when someone is working next door. Last time it...
  16. P

    Garage unit trips house consumer unit problem

    I'm installing a garage unit but it's tripping the (20A) house breaker. There's no load on the garage unit so I'm missing something obvious/doing something stupid. The garage has pre existing T and E powering lights and a couple of sockets which I want to modify to get a bit of practice after...
  17. I

    new washing machine trips rcd

    washing machine trips rcd when turned on or off? this is on a newly installed ring on a recent job.as work had all been tested and no problems, job signed off and walked away. machine was 5-6years old recommended they get it looked at by an engineer, but they instead bought a new one.this still...
  18. E

    Tripping 6amp breaker

    Morning, Called to a mates house last night and he tells me his lighting 6amp breaker keeps tripping after about a hour or so. He says it keeps trippiong more often each day. Any ideas ?
  19. M

    The RCD trips on a board that is dead?

    Right, working in a shop adding a few extra sockets.. All old rewireable ccu some 1 had added a RCD garage unit to cover the whole installation(tailed into RCD feeds 1st ccu you no the drill) Right im working on the 2nd ccu fed from the first.. I lock off the circuit im working on, test dead...
  20. Goody

    Washing machine trips the circuit.

    Customer rang to say his washing machine trips the circuit in the middle of the cycle. He said, it ran for a while and stopped. Enquired on the phone and it looked like it only tripped the MCB and the RCD stayed on. It's on a radial circuit with 16A MCB. Could someone shed some light on this...

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