PROTECTIVE, SWITCHING DEVICES AND FUNCTIONS

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Every electrical accessory, switches, RCDs, circuit breakers etc. will have been designed to perform certain functions, according to a common standard of manufacture, the British Standards and/or the European Norming Standards.
It is up to us as electricians to know what functions each device is intended to perform and to select the most appropriate device to do this safely.
This short video is intended as a guide to understanding the purpose of each type of device.
Is it an RCD for example, or what overcurrent protection will an MCB give?
Is it a three phase switch and what is the working current?
What is tripping current and what are linked switches?
We will discuss all these points in this video.
To view all our videos, click on the following link
/ @learnelectrics4402

Опубликовано:

8 июл 2024

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Комментарии : 55

@learnelectrics4402 3 года назад

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

@no_short_circuit 3 года назад

Thanks again, simple, understandable but effective tutorial

@learnelectrics4402 3 года назад

Thank you. Dave.

@northeastcorals 2 года назад

I honestly can't think how it could have been explained any more clearly, superb 👌

@learnelectrics4402 2 года назад

Thanks Gaz, brilliant feedback and very much appreciated. Dave.

@tonystewart6592 2 года назад

Wow this is a very good 'go to' link for knowledge on stuff I've forgotten lol Thanks as I've learned even though being a sparky for 30 years as we are always learning and we should never be too old or proud to learn to be a better sparks as it good to know your stuff

@learnelectrics4402 2 года назад

Absolutely right Tony. We should never stop learning. Thanks for watching. Dave.

@saleshism 3 года назад

Great video. Really appreciate your efforts to educate the world on all things electrics

@learnelectrics4402 3 года назад

Thank you, great feedback. We try our best and really appreciate comments like this. Dave.

@garyplant487 3 года назад

Top notch again Dave. 👍

@learnelectrics4402 3 года назад

Thank you Gary, much appreciated comments.

@rozmcculloch6518 3 года назад

These videos are excellent and so clear and helpful. Thank you!

@learnelectrics4402 3 года назад

Great feedback Roslyn, thank you so much. We are happy you find them useful. 50 done so far and lots more to come. Dave.

@vasilios.v 3 года назад

straight to the point, excellent video

@learnelectrics4402 3 года назад

Thank you so much. Appreciated.

@BAYUMBE 3 года назад

As always very good presentation. Short and concise. BRAVO!

@learnelectrics4402 3 года назад

Glad you enjoyed it Omar, Thanks. Dave

@Dog-whisperer7494 3 года назад

Excellent clear and precise. Thank you for another great video

@learnelectrics4402 3 года назад

Thank you Sean, you comments are very much appreciated. Dave.

@homeschoolelectrics4323 3 года назад

Thank you, once again for a great video.

@learnelectrics4402 3 года назад

Absolute pleasure, you're very welcome. Spread the word. Dave.

@mb-electricalservices 3 года назад

Excellent video again! 👍

@learnelectrics4402 3 года назад

Thank you Mike, your feedback is very welcome. Dave.

@Dibbo1979 3 года назад

Another great video👍🏻

@learnelectrics4402 3 года назад

Thanks for the positive comments. Very much appreciated. Dave.

@jacksonfarias1832 2 года назад

Thank you very much

@learnelectrics4402 2 года назад

Thanks Jackson and thank you for watching. Dave.

@krazylad84 3 года назад

Thanks for very informative video

@learnelectrics4402 3 года назад

And thank you too for the positive comments. Glad you are enjoying them, lots more on the way. Dave.

@jimm533 2 года назад

I'm a new subscriber doing my Level 3 course. This channel is brilliant 👌

@learnelectrics4402 2 года назад

Thanks for the great comment and so glad you are finding it useful. Almost 100 videos now and still lots more to come. Thanks for watching, appreciated. Dave.

@karamathussain3488 3 года назад

thanks that was great as usual.

@learnelectrics4402 3 года назад

Thank you Karamat, appreciated.

@MrGrzegorz22crewe 2 года назад

I love you explanations and your content is really appreciated.Please keep the videos comming👍🍺

@learnelectrics4402 2 года назад

Thank you for watching and yes, lots more to come. Dave.

@danielteyehuago1633 Год назад

Well understood

@learnelectrics4402 Год назад

Keep learning, its a good trade.

@danielteyehuago1633 Год назад

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

@learnelectrics4402 Год назад

Happy to help. Dave.

@stevenl7611 3 года назад

Brilliant, keep the vids coming..👍

@learnelectrics4402 3 года назад

Thanks for the comments, lots more to come. Dave.

@danielsmithurst6365 Год назад

This video is brilliant. Very clear & expertly explained. Thank you. Do you have a video explaining SPD's & AFDD's and when these are / must be installed?

@learnelectrics4402 Год назад

Daniel, You will find SPDs on this link ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CCZJ0CPOR2U.html And AFDDs on this one ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vwB21r66faM.html Thanks for watching, Dave.

@danielsmithurst6365 Год назад

@@learnelectrics4402 should have looked before asking. Found it and both videos very helpful and informative. Thank you 👍🏻

@AngelaPeters-fy1tc 4 дня назад

Good informative video again. why is it that if for eg im rewiring a ceiling rose and obviously the power is off if 2 of the conductors happen to touch im not sure if its line and neutral or line and cpc the R.C.D trips? Is it due to very small amount of current still in the line? This could be a potential problem if someone is working from home on a computer or something. Thankyou for such a detailed explanation.

@sajad459 2 года назад

As you have noticed, I am watching your nice tutorial videos and asking questions 😃 , my most recent question is: can't we use RCD's for functional switching or it is just forgotten in the table?

@learnelectrics4402 2 года назад

Thanks for watching Sajad, appreciated. Yes, RCDs can be used for functional switching. Look at Table 537.4 on page 181 in the Wiring Regs book. Keep watching, lots more to come. Dave.

@belahcnw 3 года назад

Very good and simple explanation, what's different with rccbo ? Thanks

@learnelectrics4402 3 года назад

Walid, is that a typo rccbo - If you mean RCBO it is explained in the video. If you mean RCCB, as used in some small CUs and garage units, they do not have overcurrent protection so are the same as the RCD explanation. Hope this helps.

@dennisfowler7873 3 года назад

Hi Sir...have a question regarding sub main fuses...if we have a 100 amp fuse at the main head ...and in the ryfield board there is 60 amp fuses...then from there it goes to the meter...the main board is (eg) upstairs....should the isolaor feeding the distribution board upstairs ( or say first floor) be a straight isolator or a fuse isolator...and what size fuse should that be...taking into account discrimination...

@learnelectrics4402 3 года назад

Depends on length from intake to CU. More than say 5 metres the network operators like to see fuses protecting the meter tails. But you can always install a fuse isolator with a BS88-2 fuse. It looks like you already have 60 amps in there so as this is on the load side 60 amps.

@Kevin-tt5ey Год назад

Will an RCD work if the is no earthing in the house?? Thanks!

@learnelectrics4402 Год назад

If there is no earthing and no leakage currents then there will be no difference between L and N so no. You can always check with a clamp meter.

@stevensmith4449 3 года назад

What's the difference between a switch an an isolator?

@learnelectrics4402 3 года назад

A switch is any accessory that turns something on or off, lights, cooker, motor etc. for every day use and can be single pole, double or more. Generally an isolator will disconnect all live conductors to a circuit or part of a circuit and can often be locked off to safely isolate the installation. Hope this helps, electrics could have its own 400 page dictionary.