Tutorial: Insulation Resistance Testing / Megger Testing / PAT testing Pt 2

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A tutorial on insulation testing. I cover the different test methods, an analogy on how insulation testing works, safety and the use of insulation test equipment.
In this video:
* What is insulation testing / what is megger testing / what is PAT (Portable Appliance Testing) testing?
* Electrical safety when working in a DB board / breaker box or around high energy circuits.
* Insulation test types: Proof test, Spot test, Time Resistance testing, Step Level Voltage test, Polarization Index (PI) test, Dielectric Absorption
Ratio (DAR) test.
* Leakage currents: conductive leakage current, capacitive charging leakage current and polarization absorption leakage current in a dielectric.
* Fluke 1587 Insulation Meter
Sponsors:
ISO-TECH Test equipment:
uk.rs-online.com/web/generalDi...
Tester.co.uk:
www.tester.co.uk/?cmid=QmhzQjc...
Reading material:
www.powercet.com/uploads/files...
assets.fluke.com/FACT/Insulati...
www.testequipmentdepot.com/app...
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Опубликовано:

23 янв 2014

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Комментарии : 82

@2958918 3 года назад

never found multi-voltage (step) method explained clearly like this. lots of thanks to you.

@luisgonzalezl5794 8 лет назад

Keith, this is a topic that I was eager to learn about... You did a great job on explaining in simple terms what an Insulation Test is all about and how it can help us troubleshoot some of the electrical situations that occur on electrical systems...

@dumptongee 9 лет назад

I don't care what they say about you, I am 75, & although I am not an electrician, I have learned a lot from your great instruction video., even though I wouldn't legally be allowed to carry out these tests, but this gave me a greater in depth understanding. I have now subscribed. Martin UK

@jesusjones83able 7 лет назад

Really good video and you got balance between the practical and theoretical perfect in my opinion. Thanks

@chuckram2188 9 лет назад

I really appreciate your videos and demonstrations of various brands, types and functions of different equipment available, Your information is meticulously described and very beneficial to technicians like myself, Thank you Sir!

@mikeadler434 2 года назад

Another great video! Thank you for taking the time to create it! 👍👍

@joestallings6993 2 года назад

Exactly the information I needed. Thank you for being clear. Nicely done.

@kraabell 7 лет назад

Love your videos, very informative! Keep up the great work! Bakersfield, California

@Affordanet 10 лет назад

Hi Martin, just wanted to say thanks again my friend. I'm Still enjoying your channel a year later, keep up the good work my friend!!!

@mjlorton 10 лет назад

My pleasure, thanks for the post. Cheers, Martin.

@Kebekwoodcraft7375 7 лет назад

Thanks never to late to watch a great informative video , I was interesting to know how insulation tester do , now I got a very good idea , great gob as usual from Mexico

@nilendra75 8 лет назад

Nice piece of work, very informative. Thank you.

@outdoorsadrenaline 6 лет назад

Thank you for these videos it really helped me understand much more than I knew existed.

@rolandocruz8699 7 лет назад

Good mix of theory and practical.

@franciscoalvarez5215 10 лет назад

Amazing, brother. Thanks for sharing your knowledge.

@ankaboon 10 месяцев назад

Thanks for the great efforts

@simonsj15 10 лет назад

Wow! Two videos in one day. Thanks Martin.

@mjlorton 10 лет назад

It's been a busy week Jim! ;-) Thanks for the post.

@SonAyoD 7 лет назад

great video. we do alot of meggering cables on the railway with the interlocking

@Lordlytol 10 лет назад

Thank you. Very Informative and helpful.

@jonobnz7597 10 лет назад

best teacher on youtube. thanks.

@SuperMan-zc4bq 6 лет назад

Nice tutorial. Thank you Martin

@jamaicaelectrician 10 лет назад

very informative.keep doing the good work.

@sivanathan6891 6 лет назад

That's really a great sharing sir very useful

@patrickryan5048 2 года назад

Excellent, so well explained

@MauricioBallarotti 5 лет назад

Thanks for these very good videos.

@larryclark9380 8 лет назад

Excellent video. Thanks. Watched two. Now I am hooked.

@DonOmar991 4 года назад

Thank you a lot for this rich knowledge you shared..gr8 work !!

@reyannruiz8637 9 лет назад

Thank You for a new Knowlegment

@melbournian12 10 лет назад

Great work Martin.

@mjlorton 10 лет назад

My pleasure.

@africanelectron751 10 лет назад

Wow that's some proper in depth info right there great video thanks!!

@mjlorton 10 лет назад

My pleasure, thanks for the post. ;-)

@samueljesus4460 9 лет назад

good explanation and understanding...thank you sir God bless you

@robertlane913 8 лет назад

thanks, very well said

@rotlerin 10 лет назад

Once again - excellent!

@mjlorton 10 лет назад

Thanks Robert.

@amaljacob8917 9 лет назад

good tutorial. thanks

@dbo8041 4 года назад

Very helpful. Thank you

@vipinv8004 4 года назад

super explanation

@adam1273123 10 лет назад

Very nice video, thanks for the info

@mjlorton 10 лет назад

My pleasure, thanks for the post.

@bend0matic 10 лет назад

Perfektenschlag!

@dazaro3 10 лет назад

Great video,thanks.

@mjlorton 10 лет назад

Thanks.

@davidtubber 6 лет назад

Wow. Just wow.

@sur7810 10 лет назад

very informative..cheers mate

@mjlorton 10 лет назад

My pleasure, thanks for the feedback.

@Bylga 7 лет назад

Thanks for sharing =D

@tahir4010 2 года назад

Very useful

@anthonynguyen55555 10 лет назад

i have a question about ir testing on light circuit with transformers for the downlight,should i only test between to neutral earth and active to earth,but cannot test between neutral and active because high voltage can damage electronic transformers?

@noorsaleemkhan9342 6 лет назад

thanks alot

@hardcooling 10 лет назад

very nice vid.

@mjlorton 10 лет назад

My pleasure, thanks for the feedback.

@marpuno8412 9 лет назад

Great.

@MJ-iy4fb 3 года назад

Good video. I was thinking there is a way to seclect the proper voltage for the wire. I want so say it was something like 5 times the actual voltage used on the wire.

@richardcryer 2 года назад

This is the most dangerous video I have ever seen. This could get someone killed. Proving dead with a non contact voltage indicator or a multimeter is utterly wrong. The description of the theory for insulation resistance is good. Please update as not to kill someone!

@Martin120577 8 лет назад

Hi mjlorton; I watched a lot of your vids, very nice and very interesting! Im an electrician in the Netherlands and I work around Energy distribution systems Cat III and Cat IV. Lately Im am looking for an affordable Insulation meter wich can measure with 1000V and is accurate with its measurements. I dont have money to get me a Fluke 1503 or 1507 ,so Im looking for something close to the same kind of performance but for less money. For instance , is the UT505a or UT505b of for the same matter a UT 513 any good? the 513 I can get as second-hand but is like new Can you advice a good insulation meter for around E200-E300 ? thx in advance!! Cheers! Martin

@mariuszsalatka9329 10 лет назад

Another great video. Im really impressed of your knowledge and work on your channel. Good job. Also would you be able to do review insulation multimeters in mid prices like uni-t ut533 (how are them also good on Voltage, current etc) Thanks a lot.

@mjlorton 10 лет назад

My pleasure, thanks for watching. I'll certainly try review equipment right across the price range. Cheers, Martin.

@AB-yu2tj 2 года назад

How would one diagnose a turn to turn short in the winding not shorted to chassis on a single phase 120-220VAC motor? Motor is working but pulls a little more amps. Caps are fine.

@jafarsaeidi9370 10 лет назад

thank you for your training. But i have Insulation tester from Uni-T U512 and when i want to test the Cables in the all time just show the result of OL and i don't know is is correct or not. and when i want to show the result to any one they don't accept it because of not exact number. could you please share the training for uni-T insulation tester? regards, S.Jafar

@sumanlovessapanakhamcha5771 8 лет назад

sir, i like ur video so much but i don't understand what reading of resistance in megger meter means that compressor or motor or any kinds of electrical equipment is fail or bad or ground plz,sir explain me plz hoping for ur positive response?

@fatehyalgobaily8279 3 года назад

Thank you very much for your nice explanation and I hope that you will explain to us the cable test by device VARLEY, MURRAY

@Teefy3 9 лет назад

In this video you said you had planned on reviewing specific insulation testers. I can't seem to find any of your reviews on your channel, have you done any further reviews (on insulation testers)?

@mjlorton 9 лет назад

Hi Keith, I've not had much time for them yet but I have just done one on the Martindale clamp / insulation meter. In the video I make use of the Fluke, Mastech and Metrel: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NxBlywdJHEg.html

@Teefy3 9 лет назад

Okay thanks. Great videos btw.

@sarangalekamge1048 5 лет назад

Great explanation. I was not aware of this device. I have a question, does this meter produce high voltage? Can anyone answer me, please?

@shannonsloan7246 5 лет назад

Yes, it does generate DC voltage. This voltage can be harmful if a person comes in contact. However, because there is very low current most times you will just feeling nasty little bite.

@sivucit 10 лет назад

Excellent video, waiting for long tme for this kind of video,, in case of USA, earth and neutral are connected together at da board, if so how can i test insulation test between earth and neutral , please advise, because both are connected. any tips, please.

@jonobnz7597 10 лет назад

disconnect the link between earth and neutral at the board for the purposes of the tests. DONT FORGET TO RECONNECT THE LINK THO.

@TheOldmankk 10 лет назад

My two cents. Our newly opened Subway Train Systems behave intermittently due to the poor insulation of many installed signal and power cables. The involved constructor has to replace all with heavy penalty, and many down times and inconveniences completely put off the local commuters. Obviously, many vendors has occasionally failed to complied the submitted Tender's Specifications and also those on-site commissioning officer are simply lazy and failed to carry out their duty.

@mjlorton 10 лет назад

Interesting post. Thanks.

@quietudinal4857 Год назад

How much more effective would be made the teaching point regardigng safety if he removed the gold ring on his finger & wore safety glasses and gloves when demonstrating (even though he runs simulated tests). Seeing good practice reinforces good practice.

@tonysfun 3 года назад

Just to let you know, the www.powercet.com/uploads/files/AE_Understnd_Insulation_Res_Testing.pdf isn't working. Also the: ISO-TECH Test equipment: uk.rs-online.com/web/generalDi... isn't working either. I've tested it on couple browsers with the same results. Thank you for your videos!!!

@ismathussain7671 11 месяцев назад

Pakistan 🇵🇰 ❤zindabad

@HVACinstructer 4 года назад

@tommydenissen 8 лет назад

haha sud afrikaans

@that1electrician 7 лет назад

If you live in a country where english is the main language, you shouldnt have to cater to a minority language. They came in our house, let them learn our language.

@w8lvradio 7 лет назад

Brandon Gillette The simplest thing, I think, is to have French, English, and Spanish on all North American electrical products. Especially good for exports, in any direction.