EXTERNAL EARTH FAULT LOOP IMPEDANCE - 3 PHASE SUPPLY - AM2S/E

[@efixx]

More on the Acti 9 distribution board - RCBO's with no fly lead -kzbin.info/www/bejne/m2aXppeVeK6pe7c

[@ericthekingthekingtheking4842]

Them linked out earth blocks are a great idea to stop conductors being put back in and out, loose connections and the likes, nice video Gaz

[@paulspargo-thompson446]

Great video as usual. Obviously you are a knowledgeable guy. Your poor guy was bricking it.

[@wastemanboss]

Those MET bars are good. Any idea where i can get them from

[@robertwilliamson3934]

Poor Ed looks like a real world spark who would have believed you if you told him it was Friday instead of Wednesday lol

[@o04n7h0n90o]

Where can you buy those MET blocks and all the labels???

[@DLpTheRockStar]

You can do a 2 lead hi test even though there are rcd’s in the board cause the board is off. This is the second video i’ve seen now you saying this now!

[@nicklewis4156]

There may be RCDs feeding this board.

[@sam04019491]

Where did you get that earth bar from?

[@kingofthetrowel1725]

Nice one gaz 👍👍

[@Wroe]

So, what should be done if the reading is above 0.35 ohm? Should we contact the DNO? Would this make MCB's operating devices inoperable?

[@JasperJanssen]

No, it just means your connection to earth isn’t ideal. If a live conductor - especially the neutral - shorts to earth (say, inside a washing machine), it will be slightly less likely to trip a breaker or fuse rather than just livening up the entire house. And don’t get me wrong, that’s not gonna happen at 0.4, but eventually, if the impedance gets high enough, an appreciable voltage will end up on all the CPCs, if they’ve got good conductivity between themselves but not to the PME. That’s still not a huge issue directly because literally the entire house would be at that elevated voltage - but it can become a Thing if you have something plugged into it that is outside. Like, a faulty washing machine could make using a hedge clipper an Interesting experience. In the modern world, when you’re doing your hedge clipper ing and getting a shock off the metal parts of it, the RCDs should trip instead. We’ve got protections upon protections these days, and it’s very hard to kill yourself by only fucking up *one* thing.

[@SpartanMJO12]

Didn't expect to see Doncaster Cables - just down the road from me, they are!

[@TheManLab7]

I never realised there were 3 different types of AM2. When I did mine back in day, it was just called AM2. Could somebody tell me the difference between the other 2 different types of AM2?

[@gkbailey540]

AM2 is done by people who have done the electrical route not via an apprenticeship AM2s is for apprentices AM2E is for experienced workers, so they must have worked in the electrical industry for 5 years to be able to do the AM2E

[@RichardArblaster]

Great video 😎

[@martinelectrician5637]

Good video! Megger😍

[@aaplumbingheating6645]

THANK YOU FOR EXPLAINING ,WILL HELP ME IN MY EXAM|.

[@elangor2849]

I first time seeing that kind of test.

[@KlusterYogo]

Any idea what brand that MET is? can't find it anywhere!!

[@TheYohtube]

3 pole or 4 pole main switch at the DB on a 3 phase installation...worth a discussion in a future video?

[@arcadia1701e]

Must be 4 pole unless you have a very specific reason for a 3 pole.

[@TheYohtube]

Yes I always fit 4 pole but I see many boards with 3 ,pole units fitted.

[@SME_Ste]

Never seen the point of using a 3 pole isolator personally.

[@travoltasbiplane1551]

@@arcadia1701e according to who?

[@abssend11]

What about PSSC ? Surely that’s going to be higher than PEFC 😮

[@ovidiuroman1979]

AND L-N WHEN WE MUST USE.I HAVE A METREL 3125 MI BT,AND I AM CORIOUS.THANK YOU

[@ELECTRICLIFE4U]

👍👍👍👍👍

[@jonerasmus9399]

Awesome video. Is this test usually done within the boundary of property or outside (on the councils side ) , please clarify . Cheers

[@luketaylor2846]

Another wanting to know who make the MET's

[@Dog-whisperer7494]

Good job done there , but he did make a view mistakes , so give him a slap on the wrist 😂 ok he did sound a bit nervous . Fantastic video as always Gaz 👍👍❤️

[@jamescarver6275]

Probably been doing the job faultlessly for 30 years. Gary comes along and he turns into a nervous wreck!

[@jollyfinequality9865]

To be fair Sean, you've made a mistake in your comment 'a view mistakes' just goes to show, we all make them 😉 (and that doesn't exclude me) #just saying

[@farmersteve129]

That earth link bar really ought to be secured with security bits to discourage removal.

[@travoltasbiplane1551]

The earthing conductor itself also wouldn't normally be secured with security bits... It will have a label saying don't remove though... There's only so far you can go to keep the terminally stupid stealing oxygen...

[@sockitz.splatez]

👍

[@electricalstuff259]

0:20 Ed needs to get himself a bigger pozi...

[@piotrlobacz]

With all this pressure for only skilled people carying out live tests our professional spark who makes final connections doesn't look to be very familiar with basic initial verification stuff. Sure he should be doing this work? Makes me wonder how many new installs initial verification he skipped?😂

[@glenwoofit]

FAILED. You didn't zero your leads out first... Saying that I'm a Fluke man so not sure if your test gear has 4 wire compensation. With fluke you zero every time Espicaly when doing Ze, PSC, EFLI and every little ohm matters..... I now wait for a scolding about not knowing my test equipment, lol

[@Ten_Pence]

you don't null leads on a zs or ze test its not a low ohm reading..

[@glenwoofit]

@@Ten_Pence Its vitally important on Ze, Zs, PSC to zero your leads as your measuring less than an Ohm for Ze also the reading given during the zeroing will tell you about the condition of your leads. And the connections they are making. Many times I've zeroed the leads and found the zero reading high compared to previous times and I've found I've needed to remedy that before I do the test. If your testing in the hundreds or thousands of Ohms 0.4 Ohm lead resistance doesn't matter but that would make your TNC-S reading 0.75 Ohms therefore you'd think the Ze was too high... I Zero my leads Every time I change the test. And I think that was a common sense requirment on my 2391 Test.

[@MT_T991]

@@glenwoofit not at all as you are measuring at a higher voltage. Most meter won't / can't null on a ze

[@Ten_Pence]

@@glenwoofit no you're incorrect.. I've been doing this quite a few years sir... if ever your over your max ze or zs you can certainly check your lead resistance but on this test you don't have to null your leads.. you're just wasting your time... The NICEIC have never pulled me up on testing this way as a QS...

[@MT_T991]

@@Ten_Pence someone needs to consider ohm's law that will clear up his confusion