How to Test a Ring Final Circuit - Ring Main or Socket Circuit

How to Test a Ring Final Circuit - Ring Main or Socket Circuit - Ring Continuity & Polarity Tests

Рет қаралды 225,852

Күн бұрын

In this video me and Marcus look at dead test number 2 in BS7671. In the test sequence this is "testing continuity of ring final circuit conductors, including protective conductors". We go through all 3 stages recording the results and we show the calculation for R1 + RN and R1 + R2 from r1, rn and r2 end to end readings. We prove the circuit is wired as a ring final circuit sometimes called a ring main or socket circuit. After proving the circuit is wired as a ring and the polarity of the sockets and record the results on the testing paperwork.
How to carry out a figure of 8 test on a ring final circuit (sometimes call a ring main circuit)
== 🕐 Time Stamps - Cut to the action 🕕 ==
00:00 - Ring circuit test
00:09 - Continuity of a ring final circuit
00:51 - Stage 1 - end to end test - r1, rn, r2 in ohms
02:19 - CPC r2 is 1.5 mm2 proving 1.67 times greater than r1 and rn
03:49 - Stage 2 - opposite line to opposite neutral (figure of 8)
04:20 - Calculations for R1 + Rn
05:05 - Testing at our fuse connection unit on our ring final circuit
06:16 - Testing at every socket outlet during stage 2
07:47 - Contact cleaner to improve the electrical connection
08:55 - Stage 3 - opposite line to opposite CPC (figure of 8)
09:05 - Calculations for R1 + Rn
09:30 - Testing at our fuse connection unit on our ring final circuit
09:54 - Visual polarity of the fuse connection unit (fuse spur)
10:41 - Testing at every socket outlet during stage 3
12:45 - Completing the test paperwork for our ring final circuit test
Videos are training aids for City and Guilds (C and G) and EAL courses Level 1, 2, 3 plus AM2, AM2S and AM2E.
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Пікірлер: 129

@no_short_circuit 3 жыл бұрын

This video has definitely been some help. As an adult learner these are just what I need. The more the merrier, keep them coming.

@GSHElectrical 3 жыл бұрын

Thanks for the support 🦾

@adampowell5481 Жыл бұрын

Same. Tremendous videos and very well presented

@AviKhali 5 ай бұрын

Your video are more educational than what I learnt in college. Thank you so very much for all your efforts and documentation.

@gazdkw82 3 жыл бұрын

Can tell marcus has spent time with you Gaz. His explanations and process is just as clear and professional

@michaelcostello6991 2 жыл бұрын

You 2 guys are a super training team. You cover all the important details. Thank you very much.

@GSHElectrical 2 жыл бұрын

Thanks for taking the time to comment and watch 👍🏻

@zorankovacevic7533 2 жыл бұрын

You can't ask for better when it comes to videos like this. Well presented and very easy to understand .

@GSHElectrical 2 жыл бұрын

Thanks 👍🏻

@johnlee701 2 жыл бұрын

Fantastic video, straight forward explanation and easy to follow. I had been struggling to understand it out of a book but seeing it in practice is helpful.

@GSHElectrical 2 жыл бұрын

Thanks for commenting and watching

@GSHElectrical 3 жыл бұрын

== 🕐 Time Stamps - Cut to the action 🕕 == 00:00 - Ring circuit test 00:09 - Continuity of a ring final circuit 00:51 - Stage 1 - end to end test - r1, rn, r2 in ohms 02:19 - CPC r2 is 1.5 mm2 proving 1.67 times greater than r1 and rn 03:49 - Stage 2 - opposite line to opposite neutral (figure of 8) 04:20 - Calculations for R1 + Rn 05:05 - Testing at our fuse connection unit on our ring final circuit 06:16 - Testing at every socket outlet during stage 2 07:47 - Contact cleaner to improve the electrical connection 08:55 - Stage 3 - opposite line to opposite CPC (figure of 8) 09:05 - Calculations for R1 + Rn 09:30 - Testing at our fuse connection unit on our ring final circuit 09:54 - Visual polarity of the fuse connection unit (fuse spur) 10:41 - Testing at every socket outlet during stage 3 12:45 - Completing the test paperwork for our ring final circuit test

@democracyforall 2 жыл бұрын

But is it permitted to wet those three heads with stuff to get good result?

@avfczoff Жыл бұрын

Top video as always. Really appreciate the detail you put in guys. Excellent help

@KushLeverage 2 жыл бұрын

The videos you guys make are really helpful to someone like myself who is currently studying, just want to say appreciate the videos and the way you guys teach definitely helpful, well done!

@GSHElectrical 2 жыл бұрын

Massive thanks for the support and kind words 👍🏻

@tontolawa2099 3 жыл бұрын

Congratulations on 50k. Looking forward for much more videos

@GSHElectrical 3 жыл бұрын

Thanks 🦾

@MMG_MoonManGuitar 3 жыл бұрын

Such an informative video. Thanks guys. 👍🏾

@benjaminbrewis9439 Жыл бұрын

You have covered everything that a student would need to know thankyou.

@GSHElectrical Жыл бұрын

Thanks 👍🏻

@ebrahimdaiyan5446 2 жыл бұрын

Thank you much this has helped me a lot with the understanding for each of the stages 🙌

@GSHElectrical 2 жыл бұрын

👍🏻

@zitabaroimondol9691 2 жыл бұрын

I like the way you connected line and neutral alternately. Replicates the normal flow of current in alternate directions

@nigelconnor2460 Жыл бұрын

Hi Guys. Just wanted to say thanks very much for all the help your video tutorials have been. I am just after achieving my 2391 and your videos and explanations were a massive help to me. Thanks again and keep up the good work!!

@GSHElectrical Жыл бұрын

That’s fantastic news Nigel and thanks for watching 👍🏻. All the best Gaz

@siyawashnishat 3 жыл бұрын

thanks for showing the test sheet and filling that

@GSHElectrical 3 жыл бұрын

👍

@martinh7620 2 жыл бұрын

amazing guys wish you best of luck i know your channel for some time and it is amazing you took this guy on and producing to me even better more clearer tutorials again keep on thanks for all your hard work

@GSHElectrical 2 жыл бұрын

Thanks for the support 👍🏻

@jmohammad3762 3 жыл бұрын

Thanks for clarifying step1 relating to results being within .5 and not on the value of r1 + r2. 👍👍👍

@jmohammad3762 3 жыл бұрын

Also congratulations on 50k subscribers. Will be 100k in no time.

@danielteyehuago1633 3 жыл бұрын

Thanks for sharing it with us

@ek6868 3 жыл бұрын

Congratulations on over 50k subscribers👍

@GSHElectrical 3 жыл бұрын

Thanks 🦾

@154electrician 3 жыл бұрын

You should make an in depth video on IR testing showing the type of faults that throw up bad readings their doesnt seem to be any on youtube.

@GSHElectrical 3 жыл бұрын

I have a rig for that just need time to get round to making the video 🦾. Gaz

@dean3726 2 жыл бұрын

Very interesting work your doing. I’m in Canada and wow its very different here. Same but very, very different.

@CommonInvesting 3 жыл бұрын

What a video. Excellent detail, I’m also an adult learner and this is Really really helpful! Thank you 😃

@GSHElectrical 3 жыл бұрын

Thanks David 👍

@belitoritr7047 10 ай бұрын

I pass today MA2 your tutorials are the best in special for immigrants like me , thanks very much guys the best teachers

@baghdadi2013 Ай бұрын

I hope you do not skimp on others with information as some immigrants do

@iraqviva7670 16 күн бұрын

Don't sign someone else work . Good luck 👍

@gregmcallister4862 Жыл бұрын

Great content guys keep it going 👏🏼👏🏼👏🏼

@GSHElectrical Жыл бұрын

Thanks 👍🏻

@henrybartlett1986 2 жыл бұрын

Very good. Thanks for posting.

@GSHElectrical 2 жыл бұрын

Thanks for the support 👍🏻

@gabeerlazem7798 3 жыл бұрын

Thank you ❤️

@ted3664 2 жыл бұрын

Fair play to Marcus, fair play to him

@GSHElectrical 2 жыл бұрын

👍🏻

@Alan-gv4ek Жыл бұрын

I have my final exam tomorrow and I had no idea how to do the testing, now I do thanks so much

@GSHElectrical Жыл бұрын

👍🏻… all the best

@budzshawn 2 жыл бұрын

Great content. Where can I get a replacement motherboard for a megga insulation resistance tester? Where do they sell replacement parts?

@t33bee8 2 жыл бұрын

Great video. Thanks

@GSHElectrical 2 жыл бұрын

Thanks 👍🏻

@michaelhaile6579 Жыл бұрын

Great videos garry but can you please do video explaining types of tests and what it means to the circuit. Your help is greatly appreciated.

@regdor71 2 жыл бұрын

U guys are amazing thanks a lot

@GSHElectrical 2 жыл бұрын

Thanks 👍🏻

@Ahmed198831 2 жыл бұрын

Thanks for help

@berkotropia 2 жыл бұрын

Hi, A few (maybe silly) questions please as I've never done testing before, just learning now. - Do I need to disconnect everything from the sockets before testing? - Do I need to switch ON or OFF the sockets each? - What if there is fused spur on the ring? My boiler is on the ring of the living room sockets. What should I do with it? Many thanks for your answer in advance!

@TF-uo5cg 6 ай бұрын

Love the content gents! Quick question this is under unit 204 level 2 but in this video Gaz mentioned it's for level 3....

@daron8982 2 жыл бұрын

when do you do small r1, rn, r2 test and when do you do big R test?

@davidharris8885 7 ай бұрын

Thanks 👍

@17italyman 2 жыл бұрын

you said in the AM2S theres a fuse spur which goes to a outside socket,when testing at the fuse spur could you not put your probes onto the load side of the spur and click the switch to confirm polarity as well and then test the outside socket like normal ?

@tommcconnell69 Жыл бұрын

Are the readings coming down because you've sprayed the plug top and loosened the contacts or just because the liquid is reducing the resistance in the contacts momunterely as it is aiding the flow of current with the plug top being wet ? Just a thought.

@MrSJT 3 жыл бұрын

Something you could add... if when you do the R1+R2 after doing the R1+Rn, if the switch doesn't switch off the second time round, it would have meant (pending on other tests) that it is highly likely that the switches are double pole and only the neutral pole was switching off

@martinhenrymh89 3 жыл бұрын

Very good 👍

@GSHElectrical 3 жыл бұрын

Thanks 👍

@leeedwards3783 3 жыл бұрын

Thanks for the video gentlemen. It is really helpful to so eone like me who is very interested in electrical installation and hoping to get into this line of work as well as my plumbing and heating. Seems like it is just as expensive as plumbing with the tools and calibration etc with flue gas analysers and multifunction testers. Is it better, cheaper togo for individual testers or better for the multi function? thanks again

@Apathy2271 3 жыл бұрын

multis are expensive but its an all in 1 unit. alot easier if your main job is testing

@CommercialGasEngineerVideos 10 ай бұрын

Thanks, good video

@GSHElectrical 10 ай бұрын

Thanks for watching

@hussainali-bb6nt 3 жыл бұрын

Hi Gsh electrical currently am on second year ( actually 3rd gear ) covid 19 messed up every my learning. Questions how to remember to do ring circuit in order

@teed1 Ай бұрын

I am a bit confused as a new student bit at the end of the test in front of the white board with Marcus, you made the note as r2 1.67 i thought that was spouse to be cpc end to end reading why did u put there 1.67 as r2? thanx

@iraqviva7670 2 жыл бұрын

Hi Just came cross job i tested at CU and found r1 higher than rn on 2.5mm cable i didn't have time to investigate can you please advise im going back next week. Thanks

@neilmac991 7 ай бұрын

Great video . Hope thats not a euphemism "marcus gone to take kids swimming"

@GSHElectrical 7 ай бұрын

😂😂😂

@johnburns4017 3 жыл бұрын

Taking the resistance from the sockets when the whole ring is one continuous conductor made into a loop. The L & N in the socket may be at opposite ends to the loop. That is, if the loop is 100 metres long, the L & N in the socket will be 50 metres apart on the one and same loop. So the measurement is right around the loop? Hence a reading of 0.5.

@craigrollinson3326 3 жыл бұрын

Great video, did you mean to say 0.05 when the reading and calculation was 0.51. I have confused myself

@Dogandhorselover Жыл бұрын

after getting r1 0.62, rn 0.64 r2 0.93 end to end, on cross connection what would make you get a figure of 0.00 at socket points?

@FixItWithJon Жыл бұрын

Great video, thank you for sharing 🙏 When you were checking the spur did you probe up onto the input or did you switch it on & probe on the output?

@GSHElectrical Жыл бұрын

Outgoing and operate the switch… our spur had NO outgoing circuit 👍🏻

@GSHElectrical Жыл бұрын

Can you test at the outgoing load from the spur…?

@FixItWithJon Жыл бұрын

@@GSHElectrical Yes - it's awkward for some, but I can just about. I was just thinking that the load will affect the resistance reading..

@ben8878 Жыл бұрын

How have you nulled the leads with the plug in leads?

@Ibrehas Ай бұрын

Is a ring final and ring main the same thing as a ring circuit just different wording such as earth conductor/CPC etc

@davidb3537 3 жыл бұрын

I noticed Marcus used the tips of the crocs when connecting to the conductors, my cps assessor has questioned me twice on consecutive visits how I personally carry this out, if I use the tips he says the spring end gives a better connection and visa-versa on another visit, personally I don't think it matters so long as the contact is good, what is your opinion?

@GSHElectrical 3 жыл бұрын

You make some great points 👍

@miketv8718 Жыл бұрын

Fantastic video, I’m not an electrician, both yourself and JW state on the figure of eight test between the line and cpc should be higher overall due to the thinner cpc but all substantially the same , but the on site guide suggests increase or decrease measurements depending where you are on the circuit?

@burningdevil12345 Жыл бұрын

The on site guide is correct. I tried explaining this to my tutor and he didn't accept it. When you draw it out it makes perfect sense. (r1+r2) / 4 works when you're half way around the ring. As you move along, you will have more cpc on one leg and more line on the other. So the overall resistance decreases as you move towards the ends of the ring

@17italyman 2 жыл бұрын

also you havent said anything about nulling the resistance of the leads when you used the plug in tester,is this something you need to do or not for the AM2S?

@GSHElectrical 2 жыл бұрын

Remove the resistance of the leads

@db-bv5rs 3 жыл бұрын

On a ring you can only spur one and if you want another one you need an fcu. This is because you could potentially draw more than 26amps correct? However, with radial circuits does this reg come into place because before you can draw more than 26amps the 16a mob should trip correct?

@Apathy2271 3 жыл бұрын

yeah mate

@brettstewart4118 4 ай бұрын

Brill Ty...

@gregmcallister4862 Жыл бұрын

Thanks

@GSHElectrical Жыл бұрын

👍🏻

@GSHElectrical Жыл бұрын

Massive thanks for being my first super thanks it is very much appreciated. Gaz

@shannonj1000 8 ай бұрын

Hi I am a huge fan great video as always, a little baffled by calculations.. 1+ 1.67 / 4.. same with other calculation.. can you advise

@stevespoor6567 3 жыл бұрын

Doesn’t the fuse in the plug cause any issues with the readings? Or is the assumption of a fuse being in the plug incorrect?

@Apathy2271 3 жыл бұрын

there is a fuse. but it should only act as a fuse and should let the current pass with no addition to the resistance reading

@Ibrehas Ай бұрын

Aren't we supposed to carry out isolation, before doing continuity?

@Benm32 3 жыл бұрын

can anyone link me to the earlier learners video they keep talking about? I'm still early days and I'm a little too dumb right now to understand everything in this one. Thanks!

@GSHElectrical 3 жыл бұрын

Electrical Testing Videos City and Guilds 5357, 8202, 2365, AM2, AM2S, AM2E & EAL Diploma Levels 3 kzfaq.info/sun/PL2Ea5r9gxUUdVgYrSiQG7RQDBOcUWjCcX

@Benm32 3 жыл бұрын

@@GSHElectrical how quick was that reply! Thank you!

@calebbrookes7896 Жыл бұрын

Do you have to do it in the board or can you do it in any socket in the ring circuit?

@GSHElectrical Жыл бұрын

Any point on the ring final circuit 👍🏻

@calebbrookes7896 Жыл бұрын

@@GSHElectrical I thought so but I was told it has to be at the board so that the tester won't pick up any parallel paths from other earths or neutrals?

@lordali1034 2 жыл бұрын

Do you need to make a temporary link?

@GSHElectrical 2 жыл бұрын

Use a connector 👍🏻

@montystelevision3238 3 жыл бұрын

These guys are quite selfless. They probably earn less as a tutor delivering the gold standard than working out in the field on the tools. The college looks cool and if it wasn't for distance I would be wanting to do my 2396-01 here.

@GSHElectrical 3 жыл бұрын

Wow thanks for that amazing compliment 🙌🏻👍🏻…

@seandempsey9396 3 жыл бұрын

Rewireble polsalin circuit fuses haven't seen them for a good view year's, and the earth conductor wrapped up like. A bandege with green and yellow Pvc tape bit shoddy.

@MARTINA-gc3tq 6 ай бұрын

What would be a better lesson might be to show how to split a ring into 2 properly fuse rated radials.

@arpad529 10 ай бұрын

you hid well, where to put the probes during Step2

@rgodhnia 6 ай бұрын

Great video but it was very fast to understand slow stpes would help to understand better

@GSHElectrical 6 ай бұрын

Thanks for the feedback 👍🏻

@alunroberts1439 2 жыл бұрын

Why not show reading on a socket wired wrong. Also show were CPC and neutral is reversed at a socket.

@johnburns4017 3 жыл бұрын

Joining the opposite L and N in the connector block makes one long single conductor joined at the ends. A loop. I don't think that was mentioned. Could be wrong.

@GSHElectrical 3 жыл бұрын

Possibly we didn’t - it’s a training aid so always lots of talking points can be raised 🦾.

@LindaTheLearner 3 жыл бұрын

Vordeman ??? Don’t be so hard on yourself Gaz ... your moobs aren’t THAT big 🤣 Great video .. thanks 🙏

@stephenoneill4345 Жыл бұрын

You stood in front of the figures on the white board

@GSHElectrical Жыл бұрын

Sorry

@syedhabibshahjilani4188 2 жыл бұрын

we cannot see the connections because the writing comes in front

@GSHElectrical 2 жыл бұрын

Turn off your subtitles 👍🏻

@syedhabibshahjilani4188 2 жыл бұрын

@@GSHElectrical Your writings still appears .If all the subtitles are removed then people will benefit more. I am doing Inspection and testing at trade skills for you.I am resitting the exam only the practical. I need to master the practical