1. Farmelectrics

    earth leakage

    got a new toy ha ha clamped my new earth leakage clamp around my earth cable local to consumer and was getting 5mili amp leakage question what mainly causes the earth leakage other than computers fridges etc


    I am looking at buying an earth leakage clamp meter AMECaL ST-9810 (£59) or a Megger DCM305E (on offer at £194). The only use will be mainly domestic fault finding. Any opinions will be most welcome.
  3. F

    Earth leakage High.

    Hi All, I had a nuisance rcd tripping fault at a job , I bought a Megger DCM305E earth leakage clamp, which identified the suspect circuit which I swapped out with an RCBO and problem solved! Ive come home and checked my L-N incomings just to see and I’m showing a 513MA leakage? My board...
  4. Bobby34

    Good mid range earth leakage clamp meter

    Could anybody reccommend a good earth leakage clamp meter, specifically one that measures low mA's to find any small earth leakage current that may cause nuisance tripping? Megger is my usual go to but don't want to fork out more than around the £100 mark if I'm able to get something pretty...
  5. A

    Minimizing leakage current

    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...
  6. M

    Meter Accuracy - leakage

    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...
  7. G

    Earth leakage clamp meter

    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)
  8. stuarth

    Domestic USB sockets earth leakage question

    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...
  9. P

    LED Flicker earth leakage problems

    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...
  10. l4urence

    Leakage current meter - recommendations?

    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...
  11. naylorpd

    Domestic Find electrician to trace earth leakage

    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...
  12. sjhall

    Megger DCM305E earth leakage clamp meter

    As above New in box £165 POSTED £160 collected No offers thanks Located in Formby Mersyside
  13. B

    Leakage meter usage/selection

    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...
  14. M

    Domestic Strange Earth Leakage Trips

    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...

    Earth Leakage Relay connection with normal CT

    Hi Can I connect normal Current Transformers (CT) instead of Core Balance Current Transformers (CBCT) to Earth Leakage Relay.. Thanks
  16. marconi


    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...
  17. 123

    Earth Leakage Clamp Meter...Why do I need one?

    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...
  18. Just4MeDad

    For Sale - Amprobe AC 50A Earth leakage clamp meter

    Excellent condition, full working order, manuals etc. Located in Chippenham, Wiltshire, PM any questions. Offers around £90.
  19. W

    TN-CS main bonding cable typical leakage current question.

    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...
  20. Soulcraft Electric

    Recommendation required: Earth Leakage Clamp Meter

    Torn between the Fluke 368 (pricey) and the Megger DCM305E. Anyone have any preference/horror stories? Default is "Yellow" but the price is scary...