Electrical Fault Finding Earth Leakage Current Detected with the Megger DCM305E Clamp Meter

[@markyd2633]

Great vid...watched it last night. Dropped my tester off in cef this morning in Slough for calibration and Gordon and his rig was in the store ......had a little chat very nice man.....keep em coming

[@GSHElectrical]

Thanks for that message 👍

[@markyd2633]

@@GSHElectrical A little follow up....went back to pick up tester and Gordon was free to speak.....talked to him for nearly an hour he gave me some great tips about testing and also spoke very highly of you and the set up at the college .... And..EXTREMELY highly of your students..which I think says a lot about you...just thought you would like to know......be good

[@muzikman2008]

Exactly how i find earth leakage on appliances with that socket & plugtop with earth seperated. I use another brand of earth leakage tester though, since 3 years ago. Great tips and advice fellas.

[@GSHElectrical]

Thanks for the support 👍. Gaz

[@gbelectricks]

I’ve invested in a megger earth-leakage clamp about 2 years ago and have used it very little. I find in practice the easiest detection method is simply using an mft set to insulation resistance with, the appliances plugged in and switched on testing at 250v. I would say if you are testing on a pre wired rig with nice little line and neutral loops exposed, then the clamp appears to be an effective fault diagnosis method but, not so good in practice. It is also difficult to know where to split the ring in half to test individual radials, unless of course you have personally wired the circuit. I suppose they do have their uses, in the fact you could run a suspected faulty appliance (eg washing machine) on different settings (eg spin cycle) and identify when the leakage current is causing nuisance tripping.. I’m yet to be convinced on these clamps even though I own one!!! Great video though keep them coming👍

[@GSHElectrical]

WOW thanks for your very detailed message. 👍. Gaz 😁

[@daverann]

Is it not handy to locate what circuit the fault is on? Or clamping the tails before a board change?

[@davidb3537]

Hi, Totally agree, not quite so easy to use in the field, if you going to split the ring and start removing sockets then dead testing with an insulation tester is much safer and just as easy. A lot of the time experience and gut feeling is a good starting point when fault finding. A useful device thou which defo has a place in your tool kit.

[@eugeneeugene3313]

You should learn small trick. Just take an extension cord and remove small portion of the external pvc isolation so you can separate main, neutral and earth wires. Connect your appliance via this "exposed" cord and encircle with the Megger clamp just the line and neutral exposed wires.

[@MrFryfish]

Wow, that is a smart or though full idea! Testing the suspected appliance with a insulation resistance tester! Come on, you can check "leakage" down on earth prior disconnecting main earthing of the installation, if ever needed. (I heard that there could be some nasty currents going down unknow..)

[@mrnigelfoudy]

So simple explanation and great rig fair play

[@GSHElectrical]

Thanks 👍🏻

[@zedman442]

What a fantastic demo! Very tempted by that bit of kit too. Great job 👍

[@richardwilliamson3624]

Brilliant video. Thanks to GSH and Megger 👍

[@apbrownelectrical3787]

Great vid. Love mine. Couldn't live without it now.

[@tomedwards4489]

Does your megger earth leakage meater not zero with on cables through it

[@qwqwbnbn6192]

Electrical fault finding explained in a simple way, great video.

[@steveshippelectrical335]

Brilliant! Great advice for fault finding, thanks

[@daverose4774]

Joy to watch Very easy to understand Top lads

[@GSHElectrical]

Thanks for the kind words Dave 👍🏻

[@paulmandara232]

This is a great fault finding video could you also do some more fault finding using multi function tester on ring and lighting circuits and how to find them using said tester 👍👍

[@GSHElectrical]

Marcus is currently working on a set of fault finding videos 👍. Thanks for commenting. Gaz

[@paultipton743]

I'm going to have to invest in one of them I had it recently when the rcd had tripped it did reset. I did the insulation resistance earth loop impedance tests and ring final continuity tests which were all giving good readings and rcd ramp tests on all appliances and still didn't find the fault which has happened on 2 occasions , I did find damaged insulation in short wires in a few socket outlets so it may of been a factor, installation has a fairly new metallic consumer unit on wiring from the previous consumer unit which was a Crabtree with type 1 mcbs only so it shows its age. Only one ring final circuit for a house .I hadn't fitted the consumer unit it was done by others and doesn't include surge protection.

[@GSHElectrical]

Thanks Paul for your detailed comment. 👍. Gaz

[@keithquestedelectrical9785]

Gordon is a star

[@GSHElectrical]

Sure it 👍

[@paulmorrey733]

Thanks

[@adnanidf94]

Great video. Excellent explanation.

[@GSHElectrical]

Thanks 👍🏻

[@graemesmith8509]

A really good demo. Well done

[@earlyyearslearningisfun]

I want Gaz not his Pal 🤣. Great work Joe and Gordon 👍💯

[@ArjunSingh-fe5sd]

Quick question mate I recently passed my 2391-52 inspection and testing course. I’ve got 2 years of experience working in this trade. Will I be able to apply in NICEIC to get myself registered or where can I apply for job ?

[@GSHElectrical]

I think you can register with the NICEIC... give the help desk a call 👍

[@MrFryfish]

Hello there, Any clamp meter can read through both cables (live an neutral) inside the clamp? From my previous knowledge I know that only one cable, the current running through it, can be measure. If a normal clamp meter attached to a multimeter can read could you tell what maximum (ideal) range should the clamp be? Thank you.

[@alasdairwatson8682]

This might well be a daft question, but what is the advantage of this over a standard clamp meter that you would stick around the protective conductor?

[@abdulseaforth6930]

The scale- this meter goes down to millamps

[@alasdairwatson8682]

​@@abdulseaforth6930thanks mate 👍

[@highgatehandyman6479]

Amazing video

[@waqasbtm1]

Please explain how he take out earth from extension lead I don’t understand that part

[@samirkattach9801]

Amazing video 👌🏼

[@ruzailierusdi6774]

Sir, I want to ask you about the panel box used, where can I get that? Or did you do it?

[@vinceteisar1108]

What setting is the clamp meter on, is it ma or amps

[@jamesheath7596]

Is there a way of using this tester to track down neutral to Earth faults that are causing rcd trips. ?

[@philipwelsh6569]

Great video, question- would the clamp meter be effected by D.C. in the circuit ?..

[@angelofranklin1]

Would it not be more accurate for testing only to not connect the earth wire in the flex, appreciate it would leave the electrical appliance for a few seconds with no earth but the problem is some of the earth leakage would be in the earth wire and not giving the full leakage between live and neutral

[@goodbyetothepeople92]

Where can I get one of the break out adapters?

[@okehief]

Sir, I shut down my computer server and neutralize the power supply. But after a heavy downpour with lighting, my motherboard refuse to up. What can be the issue

[@Webbster77]

Fixed reading electronic - bouncy reading = cable fault?

[@aspectelectricalservices3402]

Hi I have the other megger DCM 300 what the difference in this one, I have tried using mine

[@williamlowther7051]

A socket ring final circuit and a lighting radial final circuit,

[@abdulseaforth6930]

Gordon- too man! As you are too Joe

[@matthewdale956]

Good video,did the guy have a rotten cold? He could hardly talk 😷

[@GSHElectrical]

Yep he was struggling but wanted to do the video for my learners 👍. Thanks for commenting. Gaz

[@matthewdale956]

GSH Electrical FairPlay to him 👍

[@tomedwards4489]

I brought one of these to put on a board before I change it it would skip the first 2 ranges going straight to 500ma .

[@ashmanelectricalservices4318]

Is this what you done to verify weather or not the RCD would trip once the CU was changed?

[@FrancisRichard1957]

This is two core cable...presumably it does not work on twin and earth

[@semperparatus2368]

Anbody knows how to finding 24 VDC earth leakage doing not blackout to ship? (I already checked W/H and E/R 24 VDC dist. box, didn't) avometer shows +pole 20 VDC - pole 5 VDC

[@johnnytotheworld4802]

Next time edit the video by displaying the read on the screen

[@johnnytotheworld4802]

Reading*

[@GSHElectrical]

Good point... I only have one phone 🤦‍♂️. Thanks for watching Gaz 👍

[@johnwessels2932]

dont let someone with a bad throat do the talking....

[@GSHElectrical]

👍🏻

[@ef7480]

This is KZbin not the BBC. They do vids in their own time. Don't cancel your 'tv licence'

[@danielsingh7211]

Awesome video

[@GSHElectrical]

Thanks 👍🏻