5 Deadly Hidden Electrical Faults
ฝัง
- เผยแพร่เมื่อ 1 ต.ค. 2024
- Electricity can be very dangerous, more so when you don't even know what you're doing. Unfortunately, many homeowners still decide to work on their own electrics despite the potential risks. In this episode, we're challenging our apprentice Reuben to find five electrical faults, that are far more common than you may think.
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It's easy. Don't turn that lamp on! (Joke)
Do electricians get jobs from tradify or is it just an accounts/planning app?
It’s lovely to see Reuben’s confidence growing. His sense of humour is coming to the fore with the increased confidence. Great video guys and a real life fault finding course! Very good!
The problem isn’t DIY’rs, it’s the trades race to the lowest possible standard bottom over the last 20 years.
Biggest culprit... New Builds. Often total nightmares that get signed off by Stevie Wonder inspector's!!!
This is the problem I have now - I need a full EICR and a new board. I guarantee my place has faults cos the bloke I bought it off of was an idiot. But finding someone I can trust to do it properly is not so easy.
@@TheTW11Are you near Bristol?
the main issue is people's salaries haven't followed the crazy inflation numbers, preventing them to afford to pay tradespeople a decent rate
True, house I bought 15 years ago had numerous faults and it was trades who were responsible, not diy as it was only 5 years old.
Well done guys! That’s a great way to teach next generation electricians about the dangers and importance of electrical safety!!👍👍.
is it me or does Jordan's consumer unit look a bit messy? LOL
Well done Reuben, having someone like John teach you like this & give you such knowledge is golden & should fill you with confidence, just keep learning put the hard work in at college & you will become a great electrician.
Couldn't agree more!
Impressed with Reuben, some electricians I work with wouldn’t be that confident with those faults
I can think of at least one experienced TH-cam spark who might be chasing his tail on these, at least for a while 😀
@@Ragnar8504who are you talking about?I won't say anything, it'll be just between us.😁
@@danielelise7348 Delroy the Spark. He's a really nice bloke but sometimes he can get a bit confused.
Great video simulating real life situations is difficult, but I liked how you let Reuben try to work it out as he will have to do on his AM2 or AM2s, and in the real world. Training like this is invaluable 👍🏻
Thanks, John, for explaining the need for proper polarity. Here in Denmark we don't have polarity on our electrical system. Everything is still wired according to the proper ISO polarity, but double-pole (or four pole for 400 V) breakers have been a legal requirement since 1975, and were used for several years before that, so it's not something we consider a big deal. It's still important to pay attention to it in old installations that have single pole breakers, but there are luckily very few of those left that have yet to be replaced - since our regulation require, that whenever you do anything that requires making changes to the board (like adding a circuit or replacing the breakers) the whole board has to replaced with one that complies with current regulation - it's a pricey rule, but ensures you don't pull more out of the board than it was designed for.
One criticism about this test, though: NEVER trust the colours of the wires, especially when fixing DIY installations. And although you explained how a ring works and should work, you also succeeded in explaining why they're a terrible idea, which is the reason no other country uses them, or allow that high a rating on such a thin cable.
In Finland there is polarity all the way up to the socket. There is a custom to put the phase on the right but it really is not an error to do it otherwise. All breakers and switches are naturally on the phase.
In the UK system polarity really matters as the plug has fuse on the live. If you get a ground fault on a device it would completely bypass the fuse and the protection would be up to 32 A the breaker if you had no RCD. Alternatively on a short it could blow the fuse on the neutral and it would remain energized. Not a nice thing if the short was caused by a water spill.
6:25 fun fact in Germany/holland/Begium we don't have polarized sockets.. L on the left or N on the left is both ok . Also you can reverse the plugs in Germany/Holland ( shucko) in Belgium we have earth pin .. buth double insulated appliences you still kan put it in both ways . And even more fun fact ..in Belgium we still have a lot of grids 3X230V .. so in a socket you have no neutral it's L1 & L2 .. of L3 & L2 etc .. ( also main reason why we all have use double pole protected brakers .. so on both wires fused )
Correct polarity is vitally important if the BS1362 fuse in the plug is needed for fault protection, i.e. in circuits without RCD protection. Otherwise not so much if you follow basic safety precautions like unplugging floor or table lamps with Edison sockets before replacing lamps, particularly since EU Edison sockets from the past 60 years are reasonably safe even with reversed polarity, there's only a small metal spring that connects to the lamp's thread if the lamp is fully inserted, the threads in the socket are plastic or ceramic.
I always laugh when I see Schuko socket testers that indicate "reversed L-N polarity" - well, just flip the sodding thing 180 degrees and the fault's gone!
@@Ragnar8504 good luck with that in Belgium.. we still have a lot of grids 3x230v.. so no neutral. .
Is also the reason why double pole ( with protection on 2 poles ! Not an neutral mechanical connected to live contact ).
Also new regulations here in june... all sockets / lights on 30mA rcd. With a max of 8 on 1 rcd.. ( before all on 1 main 300mA ..bathroom om 30mA )
And yes my tester always says wrong..
I always do L on the left.. N on the right.
we have pin earthing.. we cannot rotate the plug like in holland or germany.
@@kittsdiy Yes, I know, plenty of older 3x230 V supplies in Belgium. I had to find my way around the basics of Belgian electrics years ago when someone showed up on German electrical forums searching for an explanation of the installation report on his newly bought house in Belgium. Basically he wanted to know why his installation had failed and if that was dangerous. My French wasn't nearly good enough to understand the certificate at that time but I found the Flemish version of the form online and could make enough sense of the report to see that the main fault was an earth impedance exceeding 99 kΩ. I told him in no uncertain terms that yes, it was quite dangerous because that was just a very technical way of saying he had no earthing system in his house at all, even though all the sockets had the correct penaarde.
@@Ragnar8504 correct .. earth impedance has to be =< 30 ohm .. so when inspector checks and above 30 ohm it fails inspection ;
We have to provide our own earth .. we don't get it from grid ( like in uk PME ? TNC .. )
Good skills young man, you’re already better than 50% of testers out there. Keep hold of that knowledge, it’ll earn you decent money in the future.
Also nice to hear a sparks quoting GN3 (0.05 ohm disparity on conductors of the same size), not enough people know that..
Amazing video-idea and execution! Educational and entertaining as always, guys.
Glad you enjoyed it!
great video guys
Cheers bud!
They even simulated the DB to look lashed in :)
Probably the best video you have done in a while. Educational. And makes a difference to the usual just fitting car chargers.
Someone's got a very messy distribution box, it's definitely not made by Artisan Electrics :D
😬
Trades own houses are rarely an example of their skill. They’re too busy fixing other peoples places for the money 😎
@@MS-Patriot2 I know :D
Who’d have thought a “neat or not neat” reveal of Jordan’s consumer unit would be that birds nest!
Really good information. John, your good at explaining things and you have patience….a rare quality these days..👌⚡️
Great video this to highlight to both DIYers and also Electricians. I'd go as far to say that some "qualified and competent electricians" could learn a lot from this. Maybe even the guys who have been to my own house to resolve a couple of issues over the years and install a new Shed CU..... not once did I see any of them use a torque screwdriver on the MCB's and RCBO's! Good job I went and checked the stuff for my own sanity with my own torque driver as much of it wasn't tight at all!! This is why I prefer to do most things myself where I can, and get someone to check it.
Just shows how things can be "wrong" without even realising!! I too had a Live Neutral reverse which I found on garage spur after testing with a basic plug in tester - didn't realise the full consequences of such wiring until more recently. Simple mistake to make I guess, but it all worked fine.
Reuben - you'll go far buddy, great fault finding!!
Well done Reuben, good job, as for John, your just sneaky. Very good video guys, hopefully may safe a life.
Reuben looks so tired and stressed 😭or is that just me?
That's Jordan's house and cooker switch and extractor fan switch are less than 100mm away from hob. 😮
It’s a rental, so he probably can’t change too much about it.
I do wonder what his landlord thinks of that wall outside though!
There doesn't look to be an earth connection to the back boxes either.
Great video 👍 Huge amount of knowledge you guys have! I definitely learnt some things from this video! 👌
Happy to hear that!
John, Reuben, bang on the money with the theme of video that should be produced.
Post watch, “are budding electrician viewers better off from watching” YES.
Excellent video. John is an excellent tutor and explains things clearly. Reuben is cooking on gas too. One thing, whoever out that washing machine drain next to the DB, wants shooting. One blocked drain away from a lot of hassle.
Great video. However rueben looks like he's been on a sesh for 3 days.
Excellent video would love to see John do some of the extra tests in GN3 how about a floor and wall insulation test? Not really done in a residential setting but worthwhile for people to see it.
No ring circuits here in Ontario, Canada - Good thing too, it's so easy for them to go wrong and pose a hazard without any warning whatsoever. That combo washer/dryer is pretty cool too - I've never seen that before.
"That combo washer/dryer is pretty cool too - I've never seen that before."
We have many models like that in Europe, usually they are not that good than separate models. Many new individual dryers are heat-pump based, I have a Samsung model in grey colour, matching the washing machine.
The ring circuits sound a bit dodgy, as if a break causes possible over overload of a cable.
Great to see Rueuben’s progress 👍😃
Or Buy a Jackery and have uninterrupted power when the Artisan guys come around. 🥰🥰🥰🥰
Reuben is going great guns, I’ve apprentices who wouldn’t have a clue on faults let alone testing, even though you get them hands on and trying to get them thinking about it they are clueless, well done on getting him to engage u should be proud of him! Consultants on most jobs (commercial) expect to see the CPC’s split in accessories forming part of a ring ie High integrity and i always make the boys do so on any ring final, if one cpc becomes loose or damaged the socket still has a chance to remain safer until discovered/sorted than no earth. IMO of course its open for discussion
From this video I decided to check one of the wall sockets I replaced 3 years ago. One of the wires were loose. Potentially a life saver. Thanks guys
loose connections are truly one of the most dangerous fault when wiring something up, had a family member lose $5000 in electronics because the main breaker's neutral was loose and arcing, its so quick to use a torque screwdriver and get it right, but cowboys do dodgy stuff and possibly put your life at danger. luckily im an electrician, replaced the breaker and torqued it down proper to the 2.5Nm it requires (AND even worse, it was 3 phase 380v, completely burnt the neutral terminal, insides were completely melted and didnt operate anymore + the cable was also melted, no a fun saturday night)
Oh yes, loose neutrals in three-phase or split-phase setups can be quite nasty! My granny had that happen one Sunday. There was a splice in the line from the meter (outside) to her fuse board and the neutral had come loose in that junction box. If I remember correctly, it even formed a high-resistance connection with one of the neighbour's phases, causing them to go through main fuses like crazy. Not a dead short but enough to blow 20-amp fuses pretty quickly with any loads on in the apartment.
good thing we don't have those crazy rings down here across the channel 🤣
I think people are doing their own electrics due to the ridiculously high cost of trades people. They literally have to choose between eating or food money to tradesman.
7:21 why is the washing machine drain pipe next to the mains power supply
Nice one Reuben you have a great teacher nice one guys 😎🇮🇪👏
The only annoying thing is…..I would have expected Jordan to have 5G! 😂
I'm.a plumbing and heating engineer and as a kid before being qualified in anything I knew what live neutral and earth was. I've never wired a plug wrong. However, I find light switches confusing with com and line. Because they don't state what wire should go where. Especially double switches.
Sockets are easy. Most English people know how to wire plugs and sockets. However foreigners doing DIY, that may be a different matter.
Great video though and Reuben has his head screwed on. Great work
The argument here being once you’ve wired your socket… HOW do you know it’s okay?
I wish my employe would/could offer me time to learn instead i'm payed an apprentice wage as an adult learner to do the dirty work(Loft/Foundation/Outside in the weather). im currently trying to prepair before starting my NVQ but feel like im on my own in terms of teaching myself.
John has two sporting doppelgängers: 🇦🇷Gonzalo Higuain & 🇵🇹Ricardinho Braga
You Brits run 240 volt on plugs if I'm correct.?
about that yes
230v single phase, 400v 3phase, although most single phase power is 240-250 as many transformers havent been updated
Great video. Nice to see Reuben's progress over time. Perhaps he could tidy up that DB to Artisan standard? 😜
10:19 Not correct. Current does not seek a path with least resistance. Current is divided inverse proportionally to the resistances of the multiple paths. Or, if you want, it is divided proportionally to the conductivity of each path. (Conductivity is the inverse of resistance.)
Thank you for this guys, really really helpful for me that I do very basic maintenance always leaving the important/potentially dangerous jobs to a qualified electrician. This make me realise even better the importance but also provides me with valuable tips if I want to do simple faceplate swaps or simple jobs that can end up being very dangerous or fatales in my rentals. Thank you
Was that a BG garage unit in Jordan's house! After all those times he's been snotty about them too!
Now that's LTT level sponsor cutaway!
Well done John and Reuben that was a great teaching episode both from the material and the way that John mentored Reuben.
That washing machine waste pipe position next to the consumer unit 🤔
yes , and it is an awful place were the CU is fittet, crammed in the utmost corner with no space for proper working.
CUs should installed in places with enough space to do a safe and proper job.
I reckon you should have an in-video warning for any would be DIY electricians, warning them not to use your videos as instructional sources.
I love your videos, but this one is a case in point. Reuben is clearly working on these sockets after de-energising the ring, but you don't show that happening, so a would be DIY guy may copy what he's seeing and nothing more. People don't know what they don't know.
Thank you once again, I'm about to do my fault testing on my course soon n this has been helpful! Specially when they talk about polarity!
I thought I was watching 5 invisible faults! Not how to rip off old ladies 😂
The 6th fault in the kitchen being the home owners lack of bacon sandwiches for the contractor 😞 so sad
Studying to become an electrician and been taught to times by 1.67 didn’t know you could decide by 2.5 then times by 1.5. Thanks!
It's not really any easier though, just easier to remember (because L and N are 2.5 mm2 and the CPC is 1.5 mm2). 2.5/1.5=1.67.
Who installed the Washing Machine/Drier with the waste outlet so close to the CU?
Good video guys. Keeping the public informed 👍
Brilliant video.
Have to admit, as a qualified sparky I have done most of those boo boos at some point but the point of double checking is 100% important.
Thanks for sharing
ok now we know reubens grasp of the force is nearly complete! absolutely awesome! 😁
Suggest you get Reuben to teach John how ring main circuits work. I don't think John's description at 11:00 is correct. The power doesn't "choose" which way to go, it goes both ways at once hence the lower current throughout.
This is correct.
eFixx do a really good demonstration of current flow in RFCs. They show that current doesn't flow equally in both legs unless the load is exactly half way around the ring. A socket near the CU will draw most of the current through the shortest leg - a path of much lower resistance.
@@tobysherring1369 yes, that is a much better way of explaining it.
What if...
A hob trips the board around once every 5 days or so?
A printer trips the board once every five months or so?
A laptop transformer trips the board every 7 months or so.
A light switch (to an LED under-cupboard strip) trips the board every year or so.
That's my home. The hob thing is the most annoying. We had a sparky look at it, and it got weirder. After he left and did something, the hob is now on the other board...but still trips the board it WAS on. So the hob is not affected, but it knocks out half the house. I'm a plumber with a good knowledge of electrics, but it's way beyond me. At a guess, I would say that it's an earth fault.
All comments of any ideas are welcome.
"This lamp?"
"Yeah"
*Flicks Switch, immediate power goes out*
.
.
.
"I see"
Idk why, but that just tickled me
Jordan’s board was very untidy! I would have expected neater from mr artisan😂
Probably because he's constantly working on it.
I believe he rents the property so it's not exactly his.
Hello Granny, you've been playing with the electrics again after drinking too much Sherry and I bet you didn't have your specs on ! always remember....specsavers
Your wiring would not be quite legal where I live. Our standards state that when you have more than one conductor in a screw connector, they need to be twisted together. I didn't see any evidence of that, but your country could have different rules of course.
Edit: Also, our earth cables are larger than the active and neutral. Generally, a 1.5 mm active/neutral will have a 2.5 mm earth.
I find the UK’s use of a ring system at low voltage within dwellings to be very interesting.
This post explains it very well.
Hello from the colonies ✋🏼🇨🇦
Interesting to see all the faults in this video are caused by the British style of sockets and rules for wiring (other than the non stripped wire).
Without switching sockets the ring wouldn't get broken.
Without rings the wiring wouldn't get hot, as the wiring would be of a thicker gauge.
Without switching sockets the polarity of the phase and neutral wouldn't matter.
Without the three connections looking the same, neutral and ground wouldn't be the wrong way around, the ground connector should look different to the other ones.
I have been an industrial electrician for 50 years and have NEVER had an incident were one leg of a ring has become overheated and I've had so many different faults on a ringmain circuits,I find domestic sparks are just too lazy to wire ringmains,they see more profit just running in radials and its so easy
u guys r bloody awesome! damn good too! in the U.S. the black or ungrounded cond. goes to
the center contact of a bulb socket so as to keep power away from user as compared to having
the screw-shell live as it would be much easier to touch and if standing on a concrete floor, the
use would light up. YET it freaking works so, yes it is important to know that wiring MUST be
done in a certain way, and that is according to the code and the consumer needs to know that
wiring codes are in effect to protect the wiring and property.
first time at your channel, and it would have been a boring video. finding electrical faults, thats really boring and its 20 minutes.
but but but you guys' humour and those cheeky cheeky faults just made those 20 minutes go by like a some seconds
That was excellent. I am new to the trade and really those faults very useful to know.
8:50 We saw that, Reuben! 😂
My answer to people who say 'well it's been working for 20 odd years.' is 'No, you've been getting away with it for 20 odd years.'
As a German with schuko sockets i never thought about live neutral reversal. Our plugs and sockets are nondirectional. And there are no switches on the sockets anyways.
Not always diy rs , sparks doing one day rewires cause a lot of trouble especially when company they work for have them on peace rate rather than day works thus quantity over quality in a lot of cases.
Excellent Video... People think if it aint broke, leave it alone. Kinda like paint. Oh, it is not pealing, it is fine. You just might not see the damage.
I think it stinks that receps and switches can be fed from the rear by simply inserting wires
instead of taking another minute or two and wrapping the wire around the screw, making a
much better contact, AND the more current the more heat on those springs, causing them
to lose their strength over time causing a voltage drop and overheating.
To the people who don't buy more Weetabix when they get _near_ the end of the box - just stop... If you buy another box, you then don't need to gripe about how many Weetabix us normal people eat...
It is true, im not a spark but since i brought my house 8 years ago everything has worked as it should do. Upon inspecting my kitchen sockets i found 4 double sockets spurred off of a ring (32amp mcb) with no fuse to downrate it and then found a 13amp oven also added to those spurs. After that i was intrigued and tested ring continuity at the consumer unit which was all good. Upon inspecting other sockets on the same ring i found one with 2 neutrals barely making contact and another socket with one live hanging out of it. The guy who owned the house before me was a builder..... Luckily i have enough knowledge (18th edition and HV electrical engineer) to fix the easy faults and tell the other half we need to sort the wiring out on that circuit pronto or at least downrate it to 20amps.
These faults how would you pride them up to customers once you have fixed them ?
What is a reasonable price to charge don’t wanna be a con artist
OMG if that's Jordan's place why does the fuse board look like the underground map?
illegal to do own electric work in Australia..you can switch on a kettle.
everyone makes mistakes, just because one is competent, doesnt make it impossible for them to make mistakes especially monotonous tasks like installing sockets where your brain goes on autopilot, i never think im too good to test my own work for faults, because thats when it will bite your arse
That is really enjoying fault finding is great and I am really enjoying thanks thanks for your time appreciate that
The one thing I don't understand is looking at those socket outlets they look like the have 2 earth terminals so why have you not separated the incoming and outgoing earth's and put them in the separate earth terminals thus if you lose one of the earth's then because you have separated the 2 earth's then you will still have an earth in the circuit
Love to see how close that washing machine drain is to the fuse board.
Should have done a neat or not neat!
😬😬😬
Well done young reuben that rich old lady should put you in her will for saving her life from a house fire caused by dodgy electrics :D
Hey John, Reuben stole your screwdriver whilst you weren't looking @ 8:50 :)
Very good content! Had no idea about some of these! (I'm not an electrician, but have changed sockets, lights etc. at home)
Always good to know, that's the scary thing all of these are hidden other than the tripping light.
Great teaching for Reuben finding electrical faults in the kitchen circuit.
Surprised Jordan's Consumer Panel looks a tad messy?
Weetabix - Yuck - disgusting stuff. Shredded Wheat for me.
Brilliant video…..i like you 2 lads. This is a great way to learn.
Cheers!
So... how long before you let him lose on an unsupecting public eh? 🤔
🙈
You should have given him a challenge and swapped earth and live on a few. 🤣🤣🤣
Thats one reason why we on the continent dont have a ring system!And higher volts and so lower amps..
This video is spot on . Wish this was available when I was learning but at least it’s here now for others . Good work as always lads
Appreciate it!
My neutral is connected to earth in any case at the cutout, it's a TNS-C connection.
Some of the faults described are due to the design of the electrical system and appliances in the UK-for German electricans e.g. hard to understand.
-We have no need to sleeve bare copper as the earth conductor is same size as the neutral / life and insulated. This safes time and money.
-Ring circuits were introduced in early years to reduce the amount of copper due to high material costs, no factor today.
Ring circuits seem to be the cause of most of the faults / testing requirements seen on your channel.
-Avoiding ring circuits makes it easier to properly fuse each leg.
-Nearly all sockets and switches outside UK are equipped with push-in terminals similar to WAGO -there are less problems to expect when properly done.
-Properly engineered household-appliances do not require polarized sockets. Most of EU and many other countries rely on sturdy 19mm-interchangeable plugs like Euro or SCHUKO, they are btw. much easier to handle and less bulky.
You’re biased because you’re German but there’s some hidden advantages to the types of cables we use. Flat twin and earth without earth sleeve still saves a lot on materials and if someone was to put a nail through it or damage it accidentally, it will most likely short L-E or E-N and not L-N. Much safer as it will likely trip RCD instantly. Shorting L-N with a nail/ damage can cause arc fault/ fire
If 50% of your circuits are ring circuits then it’s normal to have half of all problems originate there. It’s not hard to make a ring circuit properly, lots of very old houses with 50+ year ring circuits no issues.
You can get push in and lever connector sockets here. Screw ones are just cheaper
U.K. fuses their cables appropriately which is the main reason for the polarity requirement. In Germany I’ve seen 0.75mm cables used for high current appliances
Its not a spur, its an FCU,