Tutorial: Insulation Resistance Testing / Megger Testing / PAT testing Pt 1

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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:
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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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Music clip from KZbin Music Library - Phase Three by Huma-Huma
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[@SalazarSullivan]

Thank you very much Professor. Your lessons are simply perfect. If I was in UK I'd surely support all of your sponsors.

[@sydneymwangala2186]

It's one in a million video! Very educative and an up to date information everyone in the electrical field can appreciate. Thumbs up!

[@luisgonzalezl5794]

This video has open my eyes in terms of the Energy Audit services my company offers. Thank you for your help.

[@edward_grabczewski]

Fantanstic tutorial. Logical, thorough and clear. Thanks!

[@familjenmagnusson]

Probably the best explanation on KZbin. Very pedagogical.

[@hlalelemahlaela77]

Thank you Sir, you're the best. We were using this device at work on an aircraft testing some stuff.I came here looking for some second opinion type of explanation because I didn't understand it quite well but you sir gave me everything I needed about Insulation Testers. Now I'm gonna work with it with confidence.MegaLove from 🇿🇦.

[@yensabi]

I really enjoy watching your videos Martin , you seem to be able to get your tutorial across very calmly and very informatively , Thank you for taking the time to make these , they are a great help .

[@mjlorton]

My pleasure, thanks for the feedback.

[@keithvuma4108]

wonderful tutorial . very informative and explicit and easy to follow

[@alexzapata692]

Great find, I just subscribed. Thank you so much very informative. Love the explanations with the visual and demonstrations.

[@electronicsNmore]

Good Video, as usual. Very useful tester for sure.

[@franciscoalvarez5215]

Amazing explanation. Thanks a lot for this.

[@DJayAce4]

Damn this is pure GOLD. Really impressed by your teachings, thanks for sharing your knowledge! I'm probably going to be surfing your vids for some time in the future, can't wait!

[@BrunoPOWEEER]

Always FANTASTIC tutorials!!!!

[@suture4you]

Great video. I had no idea about the safety precautions you should take with these types of testing meters. Thanks for the safety tips.

[@encomium23]

Fantastic video there mate. Very clear, well spoken... Thank you for your time.

[@mjlorton]

encomium23 My pleasure.

[@dragan3290]

You are awesome! Thanks for the tutorial. Better than my test and tag teacher years ago!👍👍👍cheers from Australia

[@heidimccaffray]

Great tutorial. Especially, appreciate the safety perspective.

[@Rijunkv]

Very very informative video, thanks alot for posting this. Keep posting videos like this in future.

[@davidatkinson6217]

Very good teaching much appreciated. Thanks

[@hoagybob]

Awesome video. Thanks for doing this, Martin!

[@mjlorton]

My pleasure Robert, thanks for watching. Cheers, Martin.

[@markprudowsky3822]

exemplary tutorial. clear and concise. the analogy to water pressure serves the purpose of the tutorial very well.

[@mjlorton]

***** My pleasure Mark. Thanks for the feedback.

[@simonsj15]

Very interesting! Great video! Thanks Martin.

[@martinntege1718]

Thank u very much for the video it's really helpful

[@rotlerin]

Brilliant video Martin. Had to laugh because since Christmas we have had trouble with our electrics tripping out the main RCD on our consumer unit every time it rained. After extensive testing by an electrician, he found that the central boiler had a low IR and that rain water was coming in through the flue and causing the electrics to become damp. Your video has explained it all. Can't thank you enough.

[@mufc99ok]

if that happens again turn off all your breakers then reset your rcd then one by turn back on your breakers it will show you which circuit breaker has a fault on it ok

[@rotlerin]

I'm hoping the electrician cured the fault - so far so good. If it happens again I'll certainly try this. Thanks.

[@abdulabozgia5239]

Thank you very much, I benefited a lot from you.

[@seshachary5580]

GREAT TEACHER INDEED. THANK YOU. REGARDS.

[@groverrubenquiroz8663]

Thank you, now I have a new perspective...

[@shamalkc3536]

Thank you very much sir....expect more videos from you

[@vintageaudioworkshop]

superbly well explained

[@shuaib8908]

WOW WOW WOW. THIS VIDEO IS AMAZING, I LEARNED SO MUCH. GREAT VIDEO, PLEASE MAKE JUST LIKE THESE!!

[@jackmcdonald7391]

Never knew there was leakage in insulation.I just though it was shorted or not shorted.Good stuff.I work on Air Conditioners and always have circuit breakers tripping.I will use a good tool for resistance testing.

[@ronaldlijs]

Hi Martin, I always use 5kV insulated silicone (rubber certified) gloves when handling my HV test gear, they are a bit thick, but I don't leave anything to chance... The mininium voltage I test on is 1.5kV and I go up to 3kV. This is for insulation testing on audio and power transformers. Cheers!

[@mjlorton]

Thanks for the post!

[@donnierobertson3088]

Great job again like always

[@Hector-eh7kb]

Excellent video , thank you so much.

[@samueljesus4460]

thank you sir for your good teaching...

[@tonycastrovinci1261]

wonderful my friend great job

[@NurmanPresto]

What a very nice tutorial video 2 thumbs up martin.

[@paulgschumann]

Excellent Vidio, well done and clear. Thanks Paul South Africa

[@mjlorton]

paul schumann My pleasure Paul.

[@mikemullenix6956]

Thank you, excellent video, information that's vital to your health.

[@adrianciprianradu4303]

Thanks, really helpful!

[@clogalizator621]

Amazing video. Thanks a lot

[@Swamygowda]

good way of tutorial to educate the public.

[@cliftonricardorussell1704]

Cheers!!!!Good explantion

[@charalambospapastylianou6044]

Excellent video! Really helpful!

[@mjlorton]

My pleasure!

[@ImranKhan-cf8gs]

Great explanation for educating elecrics

[@allenquintana2868]

I love you. Thank you for your help.

[@androide1820]

Good video tanks :D

[@azemnaji]

thank you for sharing good job ... keep going

[@jayxlekc]

very nice explanation,,,thank you very much for this video tutorial.

[@mjlorton]

jose deejay Batalla My pleasure, thanks for the post.

[@villed3547]

Thanks. Very helpful and easy to understand.

[@mjlorton]

Orville Edward My pleasure, thanks for the feedback.

[@seshachary5580]

VERY EDUCATIVE. THANK YOU. REGARDS

[@arunraj7955]

Thank u very useful for this video.

[@jessstuart7495]

Thanks for the very informative video!

[@Ukraine-sw7jg]

Thank you for good explanation ,great ;)

[@Tito74]

Great explanation. Thanks

[@mjlorton]

My pleasure, thanks for the post.

[@george1e1]

this helped a lot .... thanks

[@pbsalyid5323]

BRILLIANT..!!! Thanks for sharing your knowledge

[@mjlorton]

Pablo Serna Thanks for the feedback.

[@pbsalyid5323]

The more I watch Ur material the more confident I feel .!! U really inspire me.. Well done

[@muthnaabdulwahed7768]

احسنت يا مبدع

[@judefernandopulle5564]

A good one, Thank you

[@onemillion210]

that was a very nice teaching

[@michaelchen7851]

A crystal clear explained

[@salvatoreruberto]

Great video, concise, informative and well presented. Have you reviewed any handheld oscilloscopes?

[@behiran1653]

Thanks alot. Very helpful.

[@JustinMikola]

Great video!

[@mjlorton]

My pleasure, thanks for the feedback Justin.

[@JustinMikola]

I really enjoy the videos! Thanks!

[@Juancarlos-sz7qn]

mjlorton hi , i have question. my fluke 1587 always measure on display 2,2 Gohm when i am measurement a motor. What can be that?

[@soufiabdelkader9995]

merci pour la video sa était très fructueuse

[@Scattman]

Great explanation

[@amikhimji]

Great video thanks

[@user-jg2je7nb9b]

Great Video

[@henrys9244]

Hi John! Im just revising this nice vid!

[@friedmule5403]

I am also not wary happy about high voltage, I have some tricks I use, maybe you find them useful. When I have done as you demonstrates I do always put a single stranded wire from hot to neutral so if anyone turns on the power it will shorten before any power can reach me. If I can't do that, I do often run a long wire from hot to the nearest outlet with earth, again to prevent me getting a schock! Thanks for your fantastic video by the way:-)

[@sharifskijr.1257]

Amazing. Thank you so much

[@viperfrank]

great video, good information. here in the UK us electricians are not allowed to use a non contact volt probe or a multi-meter to test if the installation is isolated. we have to use a voltage indicator the is approved to GS38, then we have to prove the indicator with a known source or a proving unit. i personally like my fluke T150, but a lot of the other guys i know like to use the martindale test lamps.

[@mjlorton]

viperfrank Thanks for your post.

[@AngelLaHash]

I think you are alowed to use a NEON Screwdriver, but its in small print and not suggest... i had to redo my test because o that

[@dickielicky6721]

+mjlorton hi I asked a question yesterday and have been trying to find answers on the net to it but no luck ..would you mind giving me some advice on my query please

[@carloscaraballo08]

Dickie Licky zszewqs1aaaaaassss1xxxx-

[@Robert-ts2ef]

How can you check insulation readings on the kettle, if you measure between live and neutral you should get a very low resistance reading and not a high or infinity reading because you are passing current through the heating element? In the case of light fixtures etc, you would remove the lamp/bulb but for appliances such as kettles, driers, etc, how do you check unless you disconnect the heating elements?

[@rolandocera8000]

very nice video..we can learn something from it..

[@allenherrera2290]

Very Helpful

[@saeedrila]

Really useful video

[@yousifmohamed4550]

thanks for usefull information

[@braxma12]

Excellent

[@jeffcuyozawaw2789]

Very useful video

[@simpliciocamirino2271]

thank you for that sharing ,sir,

[@privatear2001]

Great video! Thanks for making it. I'm an Electronics Tech who was thinking about buying a Megger tester. I was just wondering if you could clear something up. At 14:56 in, you said you'd like to see an additional mega-ohm for each additional 1000V put on the line. But your board says 1000 Ohms, which is a kilo-Ohm, not a mega-ohm. So for 2000 Volts, should I see 2 mega-ohms or 1001000 ohms? Or was it supposed to be 1000 Ohms for each additional VOLT you added above 1000 Volts (making it 2 mega-ohms for 2000 volt input)? Thanks for any additional info on this you can offer. All the best! Appreciate the help!

[@qzorn4440]

great info and the coffee pot is the most important tool. B*) .

[@bashiruosman473]

Well done

[@dustprogamernew2048]

VERY VERY VERY GOOD VIDEO

[@riadiputra]

Great thanks!

[@kos369]

Hello! Very helpful video! Thanka a lot. Just a notice: At video 15.10 you mention 1000 Ω as 1 ΜΩ. Isn't it 1 kΩ?

[@seandempsey9396]

1 megOhm = 1000000 ohm's

[@step9203]

eh... 1mΩ = 0.001 Ω, 1MΩ = 1.000.000 Ω, and yes, he wrote it wrong, i think he means 1M not 1k

[@bigbobbyjohnson1]

Awesome thank you

[@benamaramhamed5917]

can we test Ac motor disassembled, I mean the rotor and stator are separated, test only the stator thanks

[@parker51387]

well done

[@davidprice2861]

On earth testing you should put 10 Amps thru, which will burn out (blow) a flimsy conductor. I've seen earth terminals to equipment body with just 2 of the 18 strand copper cable in actual contact. Good video thanks.

[@nfth8449]

May i ask, is Insulation Resistance testing necessary for 12V equipment?

[@KX36]

20:30 What's the insulation resistance of a pair of rubber gloves? (excluding the rather expensive high voltage protection gloves)

[@dragan3290]

At 1000 volts an insulation resistance tester will show 1. Ive tested rubber gloves. I don't know why but I did.

[@spawnterror]

Thank You.

[@RuudvanEck]

Thank you !

[@electrodacus]

Good video with nice analogy. At minute 14:50 1000ohm = 1Kohm not one Mohm.

[@ahmed13591]

thank you

[@TheEtbetween]

Magnificent

[@itzmemk1529]

great explanation but i slept in the middle by the way you explained... thanks

[@insylem]

I shocked myself with a Megger once. It was kinda funny.

[@DonatoGreco]

at 22:28 you tested isolation between Line and Neutral of an appliance used to warm the water. I expect to see a SMALL resistance out of this test, since it is a heater, but you show 2.2 GOhm. Could you explain this discrepancy, please ?

[@kendalthompson3606]

Donato Greco i think the heater is thermostat is open on in off position. Meaning the switch is not colsed the heater is off.

[@davidprice2861]

Because it's not switched on, I think. switched on there would be almost no resistance.

[@honyr.8788]

Greco,..from the start of these video he is using 1587 insulation multimeter also known as MEGGER TESTER, insulation means,.. Cover of conductor