I must say I very much appreciate the pace you talk at it gives me just enough time to gather my thoughts. when I learnt this not too long ago it was at a much faster pace and I just had to take note and go over them as I didnt understand it fully
@waltermessines51814 жыл бұрын
Very clear explanations and voice. A blessing for all foreigners listening.
@misterbaleize6 жыл бұрын
An outstanding presentation - clear, concise and utterly understandable; thank you!
@straduk5 жыл бұрын
This hands down is the best explained video for this aspect of inspection and testing procedures I will be looking for other related videos on this channel from now on THANK YOU GUYS
@steve426814 жыл бұрын
Andy you're an absolute diamond.THANK YOU SO MUCH for taking the time and making the effort to make and post such a BRILLIANT video. Crystal clear step by step explanations throughout. I have my first NICEIC assessment in the morning and this was the one sticking point I was struggling to get my head around, until watching this that is.
@kevcousin78544 жыл бұрын
This is by far the best electrical video explaining how to do Ze and PFC tests. I watched Andys video on transposition of formula and he explained that better than my course tutor. Its a shame you do not do a whole series of testing videos that relate to the AM2 as this is where a lot of apprentices etc struggle. I hope this is something you will do in the future.
@BloodmoonDawn5 жыл бұрын
thanks for sharing this knowledge. Its quite a huge and complicated topic.
@RogerBaileyOnCars6 жыл бұрын
37k views and no one has left a comment. Andy - slight surprise that the term meggering is still being used, the onsite guide being referenced in a training session and no main earth terminal notice fitted, but i'm nit picking ! a clear and excellent video.
@mostafafeizi13884 жыл бұрын
You are sooooooooo briliant teacher that i have seen in my whole life.thank you soooooo much.please share more video.
@andrewiansummers4 жыл бұрын
My thanks to Tim and Chris for pointing out that the instruction manual requires the test leads on a Kewtech KT63 to be in 2-wire mode when using the high current test mode. In answer to your question Tim about whether previous test results are valid, I've conducted the test many times using both 2 lead and 3 lead configurations on various meters and the results have always been identical. The golden rule though is always follow the manufacturer's instructions so I've given myself a slap on the wrists!
@coolskool1.0613 жыл бұрын
I wish you had been my teacher! Calm collective and precise!
@train49054 жыл бұрын
An absolutely brilliant video sir.thankyou so much indeed.this helped me out loads.godbless you.
@SparkyNinja6 жыл бұрын
Nice pace to this video. Would have been good to mention maybe why it was so important to isolate the CU when carrying out the Ze test. 👍
@samuraj71435 жыл бұрын
Fantastick video!!! Very good, very clear, lots of information, high standard. Very helpful. Really good work.👍
@alimohammed77184 жыл бұрын
I'm always watching your video and now I'm going to to start my first course next month.✌️
@victorcharlie95482 жыл бұрын
Excellent, clear and very helpful. Thank you!
@DanstheEngineer6 жыл бұрын
Very simply explained video. I'll be sharing to others who I feel will benefit from this video.
@marlonsamuels92254 жыл бұрын
Brilliant video I feel like I was in the classroom.
@train49054 жыл бұрын
Dear sir.a most butifully presented video .lovely clear and concise.a superb presentation.takes me back to my tester course.keep up the great videos.steve
@fredrickbwalya70383 жыл бұрын
Excellent and confident delivery
@no_short_circuit6 жыл бұрын
Best explanation on the web without a doubt.
@jaanbaaz7866 жыл бұрын
hi first of all very polite person very good teaching method I have enjoy learning.
@welshgriffo4 жыл бұрын
Brilliant explaination
@lemech6 жыл бұрын
Clear explanation. Well done. Please do one on Insulation Resistance Test. Thank you.
@MMG_MoonManGuitar6 жыл бұрын
What a brilliant video. Thank you.
@vernonjones36136 жыл бұрын
Very well presented easy to understand thank you
@train49054 жыл бұрын
A most excellent demo.gentlemen.very helpful indeed.thankyou kindly.
@ping4075 жыл бұрын
Brilliantly explained. Thanks for that
@amarkos333 жыл бұрын
Very nice presentation and easy to follow. How is it possible that doing Zs (at DB) you are able to measure Ze + R1 + R2 with main switch and all breakers in the off position? min 10:08.
@Mr.Therapist12 жыл бұрын
That is really 'very very excellent'!!! I did get it! Thanks a lot!
@roberthatcher27736 жыл бұрын
Very well explained, thanks!
@jamiepycroft52605 жыл бұрын
That was very well explained 👍
@timhoward70375 жыл бұрын
I've recently realised that the KT63 manual implies that if you use the high current mode, then in all circumstances you have to have the leads in the 2 wire configuration. Your Ze and Zs tests don't do that, but your PSC test does. From the manual "The high current test mode requires the use of the distribution board lead set ACC063 configured in 2-wire mode". and "For Ze testing at the distribution board or at any point upstream of RCD protection there is a traditional fast high current test mode. The high current mode is a 2-wire test that enables the user to test the true impedance of both the Line-Neutral Loop and the Line-Earth Loop". I've tested several installation the way you did it with the N lead seperate and got plausible results but I'm now wondering if the results are valid. Any thoughts? Thanks.
@mwenichibwa61474 жыл бұрын
Thanks for the content much appreciated
@Brian-rp6kq3 жыл бұрын
Great video!! Very helpful
@altafpatel95245 жыл бұрын
Great clear explanation.
@vernonjones36136 жыл бұрын
Excellent video well presented nice worx
@charliechimples5 жыл бұрын
Great vid. Very well explained. Thanks for sharing. 🐵
@peanutpotion5 жыл бұрын
Thanks for the video!!
@ericgee65856 жыл бұрын
Very informative. Thanks
@brahimabdelsadek58154 жыл бұрын
thanx very much for the effort.so generous
@smak39245 жыл бұрын
Well explained, Thanks
@FirstSightStudio5 жыл бұрын
thank you very much for good video.
@antonwillis8962 жыл бұрын
Love this video!
@andrecostin12886 жыл бұрын
Thanks for this.
@steveokinevo5 жыл бұрын
This video is awesome thanks man
@lemech5 жыл бұрын
The KT 63 manual says that for high current test, i.e. Ze, the leads should be configured in 2 wire mode. I noted at 7.27, the test was done with 3 wire lead configuration. The manual also states do not use high current test in 3 wire configuration. Also, I noted you used 2 wire config for PSC but 3 wire for PFC. Is there a difference if you use both in 2 wire config? Both are high current so shouldn't they be config in 2 wire according to the manual? Thanks.
@pradumanpremikashyap45823 жыл бұрын
My thanks to time and chrisfor
@chriswesthead56195 жыл бұрын
Why are you showing a high current test in the 3 wire configuration when the kewtech KT63 instructions state that this function is only to be used in a 2 wire mode.
@yusufrehman21574 жыл бұрын
Fantastic
@bryanheadman5104 жыл бұрын
Very helpful. Thank you :-)
@jamblob32084 жыл бұрын
I am not sure why it was tested further down the line but still written in as Zs at DB? This is the last bit covered. I guess to find the highest figure for Zs but that is not the box being marker which still says at DB
@muratbaykal65502 жыл бұрын
thnx, very educatative
@scratchblack6 жыл бұрын
really helpful thank you
@miragesolutions16905 жыл бұрын
Well explained..
@ssalimuhammadi5955 жыл бұрын
Am so thankful for your educative videos What kind of meter did you use in the Ze and all the other tests pls. I wanna know the brand and the price. Thank you.
@ssalimuhammadi5955 жыл бұрын
My email is medissali1@gmail.com
@kendoknackersackee4 жыл бұрын
The model of the meter used in this video is a KT63, made by Kewtech.
@RageQuitter13 жыл бұрын
What if your incoming supply is an SWA cable, and it’s also carrying an earth through the armouring. Removing the main earth from the bar won’t make a difference then will it?
@jamblob32086 жыл бұрын
I have no obvious choice for the external earth conductor as 2 leave the back of the board. Assuming I am right one goes down so is the incoming but it is not obvious. There is a Meter on the back of the wall but that just tells me little too. It could still be the up or down and really the meter is level not down. Should I test each earth one at a time to find the correct one?
@user_i.d5 жыл бұрын
This is really good is there any more subjects that can help me revise revision for my am2 test
@rolandpetersen93976 жыл бұрын
Hi would like to know what is a continuity bonding test and how it is done with a multimeter
@malcolmevans9415 жыл бұрын
Very good
@LSF3155 жыл бұрын
Great video but how does the maximum breaker rating come into this? For example, a 6 amp breaker has a rating of 6000 amps. Why is this 6000 amp rating necessary?
@Masteranddisaster134 жыл бұрын
gregorginny same as your car it can only go 180km/h Others can go faster. That’s the rating of the device. You can get a higher rating like 10kA
@ef74804 жыл бұрын
Type B RCD/RCBO disconnects at 5x it’s rating ( generally speaking ) . Everything has to have a rating. Lighting circuit (6A) has lower demand than say a power circuit (32A). They have to ‘trip’ at up to that 5x rating.
@christopherfearns995 жыл бұрын
Well in andy 👍
@binodrabidas36935 жыл бұрын
my acs 850 drive trips in earth fault. megar test of cables and motors are showing ok, some times it runs f0r 12 /10/24 hrs but again trip. we reset the drive then start, some time it start and some many times of reset/ start then it run, what is the problem?
@greywolf2714 жыл бұрын
I'm still trying to find out how the impedance tester calculates this for the supply side with the supply side active. No one seems to be thinking about this. Are some assumptions made about the supply side parameters ? Because unless you shut down the suppliers side and measure the source impedance with a 50 or 60 Hz generator, there is no other way to do it. Anyone care to comment ??
@ef74804 жыл бұрын
Good comment. Anyone else?
@rdl40285 жыл бұрын
nice video the best
@macamtutorial13845 жыл бұрын
what is name for that measurment sir ? if i doing that test, can i use earth tester ?
@djelectricals344 жыл бұрын
nice sir
@Japanese_one_Tokyo5 жыл бұрын
@12:03 test. Good
@samiullahsahil7146 жыл бұрын
There are two rooms and one corridor each place have one light when we turn on the one's room light the corridor light turn on, and when we turn on light of the other room the corridor light also turn on But one room light doesn't effect the other room light.How this circuit possible?
@ef74804 жыл бұрын
Call a sparky...
@jacoobowski6 жыл бұрын
Nice tutoring till Zs@DB. You do not do Zs test at DB unless is fed from a submain and is in another outbuilding.
@ianmalone80533 жыл бұрын
Why, am confused, blocks of flats feed in SWAs how else would you isolate earth from supply cable. Also modern buildings with metal stud work and metal fuse boards can through up some strange results.
@gothardmwango26746 жыл бұрын
Helpfull
@leejohnson1977335 жыл бұрын
I thought you asked the supplier to provide ze figures?
@Masteranddisaster134 жыл бұрын
lee johnson he can give you the maximum admissible. But you can test it also, make sure it complies.
@Masteranddisaster134 жыл бұрын
Same with the prospective fault current. If no I fi is available you can take It as 16kA.
@curryhouse13775 жыл бұрын
Nice
@rdl40285 жыл бұрын
The best evere
@junaidd75 жыл бұрын
Great
@baltyre58044 жыл бұрын
Live to earth test with cheap multi meter and big spark at cooker outlet. Is this cos cheap meter
@ef74804 жыл бұрын
Nope. It’s because you do not know what you are doing...
@ashwinteja84185 жыл бұрын
Which tester can be used to find earth loop impedance
@tomherbert23614 жыл бұрын
An earth loop impedance tester! 🤓
@ursamajor65465 жыл бұрын
152K views and no comments???
@GymChess5 жыл бұрын
Low sound.
@festokapinga3425 жыл бұрын
Niceee
@EFIELDIQ4 жыл бұрын
👷👷👷👷
@bullsnutsoz5 жыл бұрын
In practice this is never done, a simple continuity check along with standard sized cables and wires is the name of the game..
@ef74804 жыл бұрын
Yep if “you’ve been in the game for over 40 years”