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

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 YouTube 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.

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Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice.

[learnelectrics]

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.

[avantgarde]

thank you General Dave very happy to share with those who want to learn

[AntonyoKnight]

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

[dead.format]

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.

[davidpatterson]

A very understandable, and informative video.

[yacinehachani]

Pushing a 👍 button before watching your videos :)?

[Orgakoyd]

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!

[Dog-whisperer]

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

[abdoaiman]

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

[hussmortada]

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

[danielteyehuago]

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

[steveokinevo]

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

[tonycowles]

Your video is very easy to understand… thanks

[kingofthetrowel]

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

[danielteyehuago]

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

[ronaldomac]

Another informative and well put together thank you :)

[macep]

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?

[asadng]

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.

[tonyp]

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

[sankyeat]

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)?