By a ring or radil circuit pls ?

Hi dave how what is maxim geographically area covered

I did 14 th edition at mid kent college they difine at tim around 70 square m for wrong or 50 for radial now I am out of touch so please ignore my ignorance istill talk in foot pound seconds

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So glad you liked it. Thanks for the very positive comments. We try our best. Bux

Thank you so much for your positive comments. They really are appreciated. We try our best to pass on over forty years of experience and help your understanding. It is a good trade to be in, stick with it and try to learn every day. Much more to follow. Bux

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Thanks for the sub and yes, playlists is definitely something I MUST do. Thanks for the nudge, appreciated. You can also search on the website for any keywords at LearnElectrics.com You will get a list of all our videos etc. that match your search. Thanks for watching. Dave.

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Thanks for the support. I used to teach that course and a lot of these videos are based around questions it. Good luck. Lots more videos to come and use the website too. Dave.

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Thanks Dan. Ring circuits are limited to just a few countries but it's always good to know. Dave.

Thank you for your comments. Yes, things are slightly different on the other side of the pond but generally, the basic electrics will follow similar rules. It's great to have some American support, spread the word, please do. Thanks for watching. Dave.

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Thanks for watching. Most countries don't use ring circuits and personally I'm in favour of everything being on radials. Glad the video helped and thanks for the support. Dave.

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Personal choice at the end of the day Gary. Some people, including electricians, would you believe, still think that a socket circuit MUST be a 32amp ring. Why? Do you need 32 amps in the bedroom where there might be a TV, a computer and a bedside lamp, 5 amps max. Thanks for the comments, you are spot on, nothing to shoot you down about. And I do agree about the risks of a broken ring on a heavily loaded circuit. Thanks for watching. Dave.

Yes you can, no problem at all in using a 20A breaker. Take a look at this video on cables and breaker sizes and thanks for watching. kzfaq.info/get/bejne/acV0aZhemJjcoGw.html

Continuity test at the CU is the only sure fire way. You can take a guess by breaker size and cable csa but testing is best. Thanks for watching. Dave.

A radial circuit is just a straight line circuit. A spur spurs OFF an existing ring circuit, but which second leg is the spur with a radial circuit.. Good question. Dave.

Daljit, have a look in Appendix 15 of the Regs for Ring circuits floor area. Think about a radial circuit and what it is, just one long piece of wire - so its limit has to be the Zs limit. Take a look at our video on this subject on the link below. That should help. Thanks for asking. Dave. Cable length calculations kzfaq.info/get/bejne/h9ePbLB_rZ68qIk.html

There is no proper answer to either question. It depends what the customer wants. 20A and 2 sockets might be ok for a bedroom, but it won't work for a kitchen. You can have 32A or 20A for a ring. 32A kitchen and 20A bedrooms. The 20A breaker gives you a bigger permitted Zs which is better for longer runs.

@@learnelectrics4402 thanks for your response

Absolutely correct, there is a huge difference between a cable looking big enough and actually being the right size. Take a look at this video - Matching cable sizes - on this link kzfaq.info/get/bejne/jNqEiM6G1beRgpc.html Cheers, Dave

Thank you Mike. Dave.

Coby, glad you liked the video. Yes, there is a video planned on how to calculate/select breaker sizes and cable sizes in the next week or two. Watch this space. Thanks. Dave.

Line, Neutral and Earth all return to their respective starting points in a ring circuit. Two Lines, Two Neutrals, Two Earths. Take a look at this video for more info. kzfaq.info/get/bejne/Y7ZxpdikyrvKYGg.html Thanks for watching. Dave.

Nothing to do with maths. It was just a value of current that a whole house might typically use at the sockets many years ago when there were few electrical goods. Once the fuse size became established, it stuck. Now we have several 32A circuits in a house.

@@learnelectrics4402 thanks Dave

Many sparkies are installing radial circuits now. There are a few other countries that use ring circuits. Thanks for watching and thanks for the support. Dave.

There is no recommended number or maximum quoted in the Regulations. as long as the size of cable is correct for the size of fuse or breaker the circuit should be safe. Hope this helps

Robert, the only way to know is to test. Have a look at the video on the link below. Thanks for watching. kzfaq.info/get/bejne/pM-liceg1dfQk6c.html

Thanks foe the great comments. Covid shut ours down so now we make videos of all our knowledge. Keep watching and tell your mates, if we start a training centre again you can have a discount. Dave

Thanks for the question Justin. Take a look at this video on Extending Circuits it will explain for you. Thanks for watching. Dave. Click on this link kzfaq.info/get/bejne/adNyi7Fz3NbciKM.html

@@learnelectrics4402 thanks Dave.

Thank you, nice comments. Yes, only about 5 countries around the world use Ring circuits. Lots more to come. Dave.

Correct Arthur. thanks for watching.

Thanks for watching. Appreciated.

@@learnelectrics4402 Yes here from Southamerica. Actually we use here only the radial approach as far as I know. Most houses have several magnetic breakers for every cable one for example one cable and breaker for the air condition independently of each room, one for the light bulbs of each room, one breaker for the electrical shower apart, each bathroom each shower apart, one of the sockets of each room apart and so on. If there is a problem the breaker snaps down and you know you have to call the electrician. Additionally there is an main magnetic switch for each of the 3 phase power line and on top of that an general magnetic breaker. Then most have an Fi human protection breaker as we call it. Over here this country adapted together with Brazil and Southafrica the new swiss modified plug system recently developed by the international electric society. It is an variant of the swiss plugs but with the british shutter system. These plugs look like an rhombus but do not have an built in fuse like the british do. Supposedly these support Schuko type 16A currents or even more as I heard. Have not seen any implemented yet. Till date we use here the Euro plug combined with the US plug styles. We use them both. These take the german Konturenstecker (washing machines and such) as well but often the house cables are a bit to thin for such 10A drawings so we have to watch any plastic meltings on the sockets. The US and Euro plug system works as well and really there is no huge need to switch.

Nothing wrong with using a 3 phase isolator as a single phase isolator. usually more room inside them anyway. Good question. Dave.