Hello all, how are you?
I often look on here but the time has come to ask for some advice!
Nearly finished some alterations in a customers Kithen, Dining room, Utility room and Garage. Approx 3 days work in total.
Anyway, after all 2nd fixed and new split load board installed pop goes the rcd...
Email from customer:
Our Solar PV installation is protected by a 30mA RCD in it's own CU which regularly trips during the morning inverter startup at this time of year (when the roof is persistently very wet). We have a transformerless grid-connected Power One Aurora inverter, and I...
Installing a split RCD board in a new barn conversion build, IR tests come out clear, ring continuity tests fine, but the RCD will trip out when something is plugged into the circuit, happens on both sockets that are currently running off that side of the RCD but when I swapped one over to the...
Hi,
Got called to a jobs due to the RCD tripping on the downstairs ring, as soon as the MCB for the ring is turned on the RCD trips.
I didn't have long but I did some quick tests, R1+R2 was fine on all sockets so I split the ring about half way and did an IR test on each side of the ring and...
Hi Folks,
I'm new to this forum. Got a bit of a head scratcher for you all.
I have recently installed a new dual rcd consumer unit in a retirement home apartment It is about the 20th apartment we have done with no previous problems whatsoever.
On energizing the consumer unit I switched...
Hi all...advice needed.
I have just replaced a MCB on my girlfriends board...as it was faulty and tripping intermittently. Whilst doing that I decided to 'tidy' up the board as it's a bit of a mishmash with labels and such. Whilst labeling....I went through the whole house finding what MCB fed...
Quick question to all
ive got and Rcd that trips out randomly through the day. Split board and the Rcd covers shower and sockets. With the shower breaker off an the other 4 socket breakers on, the Rcd will trip when u plug a tester in. However when u turn them all off a test each circuit...
I have a strange RCD tripping problem, we have a dual RCD consumer unit, when the main switch is turned off both RCD s activate, they have activated individually but not at the same time. There is no continuity between the neutrals and both sides have an insulation resistance of >25 meg, we have...
Hello,
I am a diyer doing my own board change shortly (paying a premium for the honour to BC) and have a problem either with my tester or something else. Basically when i test the RCDs and the two RCBOs i have on the board they are tripping on ramp at crazy figures, 6ma on one RCD and 9ma on...
My customer's RCD trips on the CU, but only when the induction hob CB is on, and never when the induction hob itself is switched on and operational.
With the hob CB off the RCD never trips.
Is this coincidence and it's another circuit from the CU that is faulty, or is there a fault in the hob...
This was an interesting problem and solution
I recently wired an community hall - the supply was a TPNE – one phase was being used for E7 heating. One phase was unused. And the third was to supply the lighting and power. I fitted a split board 12 way CU and ran two A2 radials for the...
Recently, whenever we plug in either our kettle (1850-2200 Watts) or our iron (2300-2750 Watts), it trips the RCD for that circuit. Nothing has been changed on the installation, and we've had both appliances for a few years and they never used to cause this problem. Up until recently, whenever...
Hi all i have a customer who has a problem that when they have a power cut and the power is restored the rcd trips i have done full test on the system a ramp test on rcd and even disconnected everything except the incoming tails and when i replicate the power cut it still trips. It is a...
hi, today i installed a 8 way mk rcd i had from left to right;
100a main switch
63a rcd
40a mcb cooker
32a mcb ring main
16a mcb immersion
6a lighting up
6a lighting down
tns system, i did my tests before i installed new consumer unit and all was good, when i tried to turn on cu the rcd...
Evening all.
Popped in to see a job today -
Customer has a split board - 5 or 6 breakers fed from RCD 30mA main switch ( feeding sockets, shower etc as expected) and 5 or 6 circuits fed from standard 60898 mcb's off the main switch side ( lights, alarm etc again as expected)
The fault is -...
Hi,
I have a RCD in the CU connected to 2 x socket circuits (house and kitchen/heating), shower and cooker. This tripped the other night when only the heating and a couple of sockets were on. I reset this and the issue only reoccurred tonight. The RCD would not switch on until the...
Hello all,
i have an issue with a commercial dishwasher who has been checked by an Engineer with no fault.
RCD trips as soon i switch the wall socket,however i've unplugged every plug i have and surprise it does not trip.
now,i've tried to see if have split load,correct me if i'm wrong,i did...
Hi guys I have come accross a weird problem, a cooker circuit fed by rcd two trips rcd 1 when cooker in use . Both rcd's changed , check neutrals etc replaced cable . Even took of rcd but still tripping the rcd! Help
just a quick one doing some rcd tests today, and at x1 value the tripping time was 46mseconds and at x5 29mseconds now i no that as long as at x5 value is under 40mseconds all is ok just thought the x1 value was a bit high so my question is there a max value for times 1 as i must admit not had...
Hi,
I understand that these things are hard (if not impossible) to be predict, but I just wondered if I could get your best guesses.
If a domestic installation has an unplugged insulation resistance of 0.4 megohms on all ring circuits, what is the likelihood/likely frequency of nuisance RCD...
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