TESTING RADIAL CIRCUITS Lighting, Cookers, Showers and Radial Socket circuits.

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This video is an introduction to the testing and verification of radial circuits.
The dead tests on a circuit will confirm that we have cable continuity, the correct polarity and switching arrangements and that the conductors are adequately protected by insulation to prevent unwanted shorts and other electric shock hazards.
The tests that are shown form the foundation of electrical circuit testing and, understanding these is essential in ensuring the safety of users of the installation.
This is explained in clear and easy to understand terms and the video will help to put the different tests into the proper context.
This video is No.73 on our RU-vid channel where we have videos on a wide range of electrical topics.
To see a full list of all our LearnElectrics videos, click on the link below.
/ @learnelectrics4402
You can also view all our videos by typing LearnElectrics all one word into the RU-vid search bar.
Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice.

Опубликовано:

26 июн 2021

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Комментарии : 92

@learnelectrics4402 3 года назад

SEE ALL VIDEOS - To view a list of all our LearnElectrics videos, click on the link below. There are many videos on many electrical topics including Installation, Part P, 18th Edition, Testing, Certification, Lighting, Sockets, Ring Circuits and much more. ru-vid.com/show-UCYaJQnpO4XAp0yCgqzMkmfA

@democracyforall 10 месяцев назад

When I was doing priacticle fo 2391 I was testing continuity or big R1 and R2 between the motor connections and the main contactors on one side and it gave very big of I million ohms. Was that normal??

@AntonyoKnight 3 года назад

I have just started studying the 18th Edition and your videos are way better than any other courses. Huge THANKS!

@learnelectrics4402 3 года назад

And they're free. Thanks for the great feedback Antony. Please tell your friends and colleagues about our channel, it helps us to make more. Dave.

@dead.format Год назад

Your videos are certainly the best out there. I am currently studying for 2391 and these have been invaluable. Some other videos online are too fancy and full of waffle - yours get straight to the point and are simple, clear and concise. Many thanks.

@learnelectrics4402 Год назад

Thanks Loz. I try to make one video about one thing. Thanks for watching, Dave.

@tent7014 2 года назад

Excellent Video. Clear and concise.

@learnelectrics4402 2 года назад

Thank you, thanks for watching. Dave.

@davidpatterson1574 3 года назад

A very understandable, and informative video.

@learnelectrics4402 3 года назад

Thank you David. Glad you found it helpful.

@Dog-whisperer7494 3 года назад

Another fantastic video as always Dave 👍 It’s its quite easy really, the hard bit is understanding the readings and what they mean,and remembering to test every single part of each circuit , many sparks don’t operate the switches

@learnelectrics4402 3 года назад

cOntinuity has an O for LOw Ohms. Insulation Testing starts with an I for hIgh Thanks for the feedback. Dave.

@currentsolutions8467 3 года назад

Another great video. Thanks Dave.

@learnelectrics4402 3 года назад

Thank you, brilliant comments.

@Orgakoyd Год назад

Great video, I was always confused about insulation resistance testing and where the tester was suposed to be connected, this video makes it very clear and the examples showing what things should be removed and the role switches play are very helpful, thank you!

@learnelectrics4402 Год назад

Glad it was helpful Aryan, thanks for watching.

@kingofthetrowel1725 2 года назад

Another one watched dave 👍👍 I would have loved to have somebody like you as a teacher learning electrics 👍👍 seriously your videos are brilliant!!

@learnelectrics4402 2 года назад

Thanks for the fantastic feedback, really appreciated. Your comments make it all worth while. Thanks for your support. Dave.

@abdoaiman 2 года назад

Many thanks again for the great effort you made.. 👍👍👍👍👍

@learnelectrics4402 2 года назад

Happy to help and thanks for the positive feedback.

@Jeff-ih7qr Год назад

Learn electrics, you are the man ! ❤

@learnelectrics4402 Год назад

Thank you Jeff, I really appreciate that comment. And thanks for watching. Dave.

@hussmortada Год назад

Thank you very much, I always learn something new with your videos. Appreciated

@learnelectrics4402 Год назад

My pleasure, appreciated comments. Dave.

@ronaldomac4918 2 года назад

Another informative and well put together video....... thank you :)

@learnelectrics4402 2 года назад

Thanks Ronaldo, appreciated. Dave.

@tonycowles4150 2 года назад

Your video is very easy to understand… thanks

@learnelectrics4402 2 года назад

You're very welcome Tony. Thanks for watching. Dave.

@danielteyehuago1633 Год назад

Wow! This is very informative, thanks for sharing it with us Dave. It worth it and the best tutorial on the topic for me...dl

@learnelectrics4402 Год назад

Thanks Daniel.

@danielteyehuago1633 Год назад

@@learnelectrics4402 welcome

@danielteyehuago1633 Год назад

Wow! This is very informative. Thanks for sharing it with us...

@learnelectrics4402 Год назад

Glad you found it useful. Dave.

@yanalnaghawai1872 10 месяцев назад

Great video as usual,, many thanks

@learnelectrics4402 10 месяцев назад

Thank you. Tomorrows video will answer your questions about Zs and the 100 amps etc. I will send you a link Sunday morning, when it is published. Thanks for your support. Dave.

@yanalnaghawai1872 10 месяцев назад

@learnelectrics4402 Great, i will be waiting to watch.

@56jmack 3 года назад

excellent video as always

@learnelectrics4402 3 года назад

Thanks Jimmy, really appreciate your comments. Dave.

@azizullahkhan7888 Год назад

Thanks a lot for uploading

@learnelectrics4402 Год назад

Thank you, appreciated.

@munafmufc01 Год назад

Brilliant explanation thank you

@learnelectrics4402 Год назад

Glad it was helpful and thanks for watching. Dave.

@mohaldan86 Год назад

Thanks for the efforts👌

@learnelectrics4402 Год назад

Glad you enjoyed the video. Thanks for watching. Dave.

@ahmedalazazi2895 10 месяцев назад

Great Many Thanks to you

@learnelectrics4402 10 месяцев назад

Thank you too, appreciate the comments. Dave.

@bonaminhrasmey42 8 месяцев назад

❤thanks for sharing your video ❤

@learnelectrics4402 8 месяцев назад

My pleasure, thanks for watching. Dave.

@krazylad84 3 года назад

excellent stuff thanks

@learnelectrics4402 3 года назад

great comment. Thanks.

@user-mg5dz1ru5c 4 месяца назад

Excellent video

@learnelectrics4402 4 месяца назад

Glad you liked it, thank you for watching. Dave.

@steveokinevo 3 года назад

Lads Dave's videos are amazing it beats the others out there let's be honest. Spread the word.

@learnelectrics4402 3 года назад

Thank you Steve, and yes I agree. Spread the word. Your comments are truly appreciated. Thanks. Dave.

@steveokinevo 3 года назад

@@learnelectrics4402 no worries dave your channel deserves more mate, get the word out. I'll keep throwing your link around anyways glad ta help.

@learnelectrics4402 3 года назад

Cheers mate.

@yacinehachani9754 3 года назад

Pushing a 👍 button before watching your videos :)?

@learnelectrics4402 3 года назад

Excellent feedback. Thanks.

@macep23 2 месяца назад

Thank you so much for these videos, by far the clearest explanations I've seen. But just to clarify, if a lighting circuit has multiple points (e.g. several rooms each with a ceiling rose/ switch) presumably each and every one of the rooms needs to be tested for continuity at the ceiling rose and the switch as described in your video. If that is the case what R1+R2 reading is recorded, the highest?

@learnelectrics4402 2 месяца назад

Yes, correct. If the worst case passes the Zs requirements, then so do all the others. Thanks for watching. Dave.

@echenduconfidence4998 2 года назад

Great video. Pls sir while test for insulation resistance test, do you connect the both end

@learnelectrics4402 2 года назад

Have another look at the video. You do the IR test will all the cables separated from each other. Also have a look at this video on continuity tests which MUST be done before IR tests ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-tT3eGK1b0Yk.html Hope this helps. Dave.

@asadng2920 2 года назад

Very comprehensive. Many thanks. Is it possible to do one video on EICR, domestic complete testing using any multimeter. I meamt ring, radials And if LEDs are fitted in the house how to bypass those 50 plus LED's? thanks again for making it easy to understand.

@learnelectrics4402 2 года назад

Thank you Asad. Those videos are planned, keep watching and thanks for your great support. Dave.

@tonya5500 2 года назад

Hi. What testing equipment are you using for these tests?

@learnelectrics4402 2 года назад

A Multi-Function Tester (MFT). Thanks for watching. Dave.

@tonyp2878 3 года назад

Joining L-N together for IR test only acceptable for periodic inspection. For initial verification you can test L to N at 250V but reading must be over 1Mohms. That what your GN 3 says

@learnelectrics4402 3 года назад

Correct. Thanks for watching.

@sankyeat 11 месяцев назад

In the polarity test, Lets say you have 5 sockets in a radial circuit. Do you have to test the polarity on every socket or just the last socket? Also, If it's just the last socket then which switch do you have to flip to test polarity. Is it the switch of the socket you are testing polarity on (e.g. last switch) or can it be any single switch in the radial circuit (e.g. third switch)?

@learnelectrics4402 11 месяцев назад

I would test every socket. If you are using a socket adaptor, flick the switch on the front of the switch outlet.

@pah9844 Год назад

Hi. If a ring circuit and a spur was taken from a socket, 1. Would the reading also be. example; 52ohms 2. If somebody has put a spur on spur, then what would the readings likely to be. Would this show a spur has been taken from a spur by mistake, not noticeable from the eye looking at the room. Regards

@learnelectrics4402 Год назад

The spurs would show up as a higher reading. Take a look at this video we made, and thanks for watching. Dave. RING CIRCUIT SPURS - FINDING THE SPUR - CALCULATIONS AND TESTING - HOW TO SET UP THE TEST ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-V0_6_WmkmsY.html

@hehehoho9218 3 года назад

Hello sir can u post a video regard to voltage leak at a point of use...Thank you sir.

@learnelectrics4402 3 года назад

Have a look at our video "Earth Leakage Measurements" on this link. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VrvT2tdCbm4.html Hope this helps. Dave.

@yanalnaghawai1872 9 месяцев назад

👍👍👍👍🙏🙏🙏

@learnelectrics4402 9 месяцев назад

Thanks for watching. Dave.

@ashrafkarjiker6888 Год назад

Are these tests done when you’re adding another wall socket

@learnelectrics4402 Год назад

We should always test any electrical works that we do. Wall sockets can be radial circuits or ring circuits and we have videos on both these. Go to LearnElectrics.com and put your question keywords into the search box and you will get a list of all our videos that are relevant. Nearly 200 to choose from. Hope this helps. Dave.

@deniseg9311 3 года назад

How about a video about testing a 3 phase db?

@learnelectrics4402 3 года назад

Its on the cards to be done Denise. Thanks for asking. Dave.

@IAmThe_RA 6 месяцев назад

What if the cable is nym instead of twin & earth?

@learnelectrics4402 5 месяцев назад

They can still be tested, use the appropriate tables in GN3 for reistances etc. I just quoted T?E because its most often used. Thanks for watching. Dave.

@IAmThe_RA 5 месяцев назад

@@learnelectrics4402 thanks Dave 👍

@farisalimi4149 Год назад

Continuity test only for Phase to Earth and Neutral to Earth? How about Phase to Earth?

@learnelectrics4402 Год назад

I think you mean neutral to earth. For straight forward continuity, we have proved all three conductors in just two tests. Hope this helps.

@shaunlewis286 Год назад

shouldn't you redo this vid? 1MOhm is a pass but now if the reading is below 2Mohm then it warrents further investigation?

@learnelectrics4402 Год назад

Yes Shaun, they will all get revamped. Thanks for watching. Dave.

@shaunlewis286 Год назад

@@learnelectrics4402 thanks for the reply Dave. Good vids btw👍

@stephenmorgan1470 2 года назад

Why can’t you just test everything with 250v then you haven’t got to worry about drivers, dimmers, USB’s etc

@learnelectrics4402 2 года назад

I know what you mean Stephen, but the boffins make the rules. They say that if it doesn't leak at 500 it is unlikely to leak at 230. Thanks for watching. Dave.

@stephenmorgan1470 2 года назад

@@learnelectrics4402 brilliant videos by the way Dave. Could you consider doing a video on Dali lighting? Confuses the hell out of me.

@learnelectrics4402 2 года назад

Its a good ask that one. Maybe I should do something on DALI and DMX etc. I've put it on the list for future videos. Thanks for watching. Dave.