Hi everyone,
I have a problem in a home. By night time his rcd is tripping for no reason. I made and insulation test between neutral and earth + live and earth and got 4 mega ohms. I made a leakage current test and found he have 20mA. Can somone tell me how i can minimize it please...
Hi Guys
Yes, me again, heres the scenario, customer calls in and they say the property is empty and there has been some units recorded on the meter, we install a check meter and shows the meter to be accurate. I have heard of electrical leakage, not sure if thats the right way to describe it...
Anyone got one they recommend.
Looking to spend upto £120.
Would like micro Amp resolution if possible single digit milli Amp a must.
Ta muchly.
Edit: only looking at testing appliances and 240V circuits.
(did a search but no conclusive answers found)
I have a customer who has been providing all the accessories for their renovation a real mix of manufacturers and styles, we arrived to second fix and swap existing faceplates to find that every single socket both single and double had usb ports. My question is will these USB ports all...
Alright lads, new here as looking for some advice on a fault I've never come across and can't pinpoint..
Basically Got LED LIGHTS on compatible dimmers etc...problem I have is now and again they flicker....and I can hear a sound in fuse board as if there's an arc? But there are no loose...
I'm looking at buying something for measuring leakage current - The Megger DCM305e (I think). Not specifically for nuisance tripping but more for DC leakage current - type A vs AC RCD (type AC flooding with DC and not tripping). Not a lot of info on the DC side - except DC units for PV, I...
OK, so this is a follow-on to my thread about unsatisfactory EICR.
There is a big inconsistency in that the EICR reports all the L-E IR as >100 Megs, but the inspector also comments about earth leakage in two ring mans and one lighting circuit. This seems to be stopping me from replacing the...
Hi. I have a question about earth leakage meter usage/selection.
I see that people say one should test the live wires not the earth for reasons you guys probably understand. However earth leakage meters with large Jaws to loop around both tails are much more expensive.
Can I use a combination...
I have an odd situation in that I get random earth leakage trips which happen occasionally when I turn off an outside light. I have a standard split board, half earth leakage protected, half not. Trips happen maybe once every 50 times that outside light is switched off, never when it is...
I have spent some time reading into PV panels and inverters while trying to help with a current post on nuisance RCD tripping at a PV installation on a farm. I happened upon this technical paper which explains capacitive leakage currents from PV arrays and the trouble they could cause...
I've read various threads on faults and it's been suggested that an Earth Leakage Clamp Meter is an essential bit of kit and some suggesting it is the first go to bit of kit in fault finding.
What am I missing out on then? I do numerous call outs, and have yet to be beaten on one. What's it...
OK I'm prepared for the usual onslaught so here goes...
I recently bought a clamp meter Uni-T UT210E.
The first thing I did was check it out against my trusted AVOs and also a couple of other cheapo DMM's, (measure current through wire through probes and compare to clamp reading). The clamp is...
Reposting in the right forum...
Torn between the Fluke 368 (pricey) and the Megger DCM305E. Anyone have any preference/horror stories? Default is "Yellow" but the price is scary...
Seems I've fallen foul of this poor quality product;
Dilog dl6507 beware! - https://www.electriciansforums.co.uk/threads/dilog-dl6507-beware.101199/
And I was so cock sure here;
Earth Leakage tester - https://www.electriciansforums.co.uk/threads/earth-leakage-tester.108917/
Mine was the CM...
I think I must be missing the blindingly obvious, but.....
TT system......100ma time delayed as main switch, then some final circuits (which will require 30ma RCD as includes sockets etc)...then 30ma RCD for other final circuits...
Prior to changing CU at customer's request to include 100ma...
Monitoring or evaluating earth leakage on installations should be a great tool in our fault finding skill set.
Would people like to contribute some of their experience or thoughts to build a thread of our collective knowledge.
As a starting point it's easy to assume that you would focus on the...
Called out today by new owners to a domestic 3 bed semi with history of nuisance RCD tripping from day 1 (lived there about a month). TNS. No dual supply. No regular pattern to tripping. Most appliances new.
First - Ramp Tested RCD unit with no loads = 25mA (can live with that). Popped...
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