Fault Finding an Electrical Lighting Circuit - Expert Electricians Top Tips
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- Опубліковано 1 сер 2024
- Fault Finding an Electrical Lighting Circuit - Expert Electricians Top Tips
The rodents are back at it again! On this episode of Artisan Electrics John returns to a previous client, to take us through an in-depth fault find on a tripping circuit. The fault's culprit is a rodent that has gotten very hungry again! With no way to access the loft space above, will the damage caused result in another full rewire for the customer...
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Fault Finding Electrical Circuits - • Fault Finding Electric...
I Didn't Expect That! Fault Finding - • I Didn't Expect That! ...
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⏱️Timestamps
00:00 Completely Chewed
02:46 Further Testing
06:26 First Signs
11:19 Live Test
15:46 Fault Finding 101
18:29 Diagrams
21:27 Fearless Leader
23:30 Getting Closer
28:11 Hungry Squirrel
32:32 FLIES
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#sparkylife #electricianlife #artisanelectrics - Наука та технологія
That is a super clear teaching video on fault finding - John is very good at explaining how things work!
So many wires in the switch mean the plat system is in the switch rather than the celing rose?
You really don’t get anywhere as much recognition as you deserve in the UA-cam world mate! By far in my opinion one of the best UA-cam sparks I love watching! Thank you for your knowledge and ability to converse that perfectly to the audience! Your a legend
Just got home from an 8 hour day working on a rewire and now watching someone else doing electrical work whilst eating my lunch! Can't get enough of it apparently!
It's people like you that make great hires, and one day possibly business owners. Keep that drive to learn with every day!
I’ve been struggling so much on lighting faults it’s my one weakness I just can’t seem to get over. But watch you do that as made so much more sense to me. Unfortunately both faults I’ve had this week have been from the db to the first point. It’s been a nightmare honestly. Thank you mate you’re a legend.
Great vid. I’d suggest the easiest/safest/cheapest thing to do is to change the lighting system so that you don’t use/rely on any cables within the roof joist zone. Design an LED strip lighting system to soffit / walls/ false dado rails & some floor lighting etc etc.
There are some clever people that do this for a living I’ve heard!
Or try quinetic
Yeah, alternatively customer can go for surface mounted cable trunking / conduits and spotlight bars along flat ceiling.
This is probably one of the best videos I have seen on how you explained the process on fault finding and how things work 👍 thank you
Might be worth investing in a borescope, would help fault finding in tight places
I have only found your channel recently. My loss ! I run a vehicle workshop, and my passion is auto electrics. So many similarities, yet so many differences. I'm happiest building bespoke engine management looms, multiple voltages, signals, sensors, sometimes 100+ conductors . You would think that mains stuff would be simple, but I have never completely got my head round it. Your videos bring a beautiful clarity to people of technical mind. I have learned more from your work in the last week than I have in the last twenty years. This video didn't particularly teach me anything, but from a very fussy technical person, I would like to congratulate particularly John for a brilliant run through of the processes involved in diagnosing something like this 👏 👍 proper job mate. Also awesome to see the level of care and pride in the standard of work you guys turn out. Even better your only up the road !! I wish you all every success in 2023!!
I'm a committee tech in Australia .
I use red tape to identify the incoming power.
Also l use a tdr (time delay reflexomiter) to locate the fault location.
Also l install cables in conduit when wiring in confined spaces.
His testing and fault finding knowledge is just something else! 👌👌👌
Thank you John. Good work logically isolating the faulty sections of cable. Scary to think how much unseen and inaccessible cable under floors, in lofts, and overboarded ceilings, like the ones in this video, could be rodent damaged, yet still test good.
Awesome video. So nice to see the actual thought process as well as the actual work, rather than a snapshot before and 'magic' the one after! Thanks for that.
The BEST type of video. Thanks John, that was very cool.
Excellent explanation on the diagnosis. It's just depressing for the homeowner that he has to rip all the ceiling down, and do a rewire. That is the frustration we have with electrics and electricians. Flipping mice and squirrels.
Great film John, fantastic fault finding and explanation.
I appreciated the diagram on the cardboard, it then made sense.
Much appreciated, well done. 🍻👍👍👍
I’m here for the thumbnail! 😂👍🏼 - brilliant
Similar to how I commented on the last video, I think that you have to assume other cables in the ceiling are damaged and I wouldn't reconnect them. I wouldn't have fixed any existing wiring until the rodent issue was positively identified and corrected. If they absolutely needed ceiling lights then I would have offered to install a brand new surface mount metal conduit lighting circuit using no existing wiring back to the consumer unit as the only option. Actually, I'd have my doubts about the wiring in the walls at this point and say resolve the rodents first.
You re-energized part of the lighting circuit after showing the damage, documented it on UA-cam, and now you could be responsible if there is a fire.
It is very difficult to stop rodents entering roof voids like this one - they need so little space to get in. There should only be metalclad containment within these spaces. Re-energising any of this wiring is risky even with the additional protection of the RCD.
Very methodical and well explained John. Keep up the great content.
Wow, that was intense fault finding, found it very interesting as a non electrician. Quite worrying that it could in fact test out OK even in that knawed condition though.!! Alex.
That is great troubleshooting. Thank you for info.
Watch the previous videos here:
Fault Finding Electrical Circuits - ua-cam.com/video/BK6ykUkJ-8A/v-deo.html
I Didn't Expect That! Fault Finding - ua-cam.com/video/tUyvLSfB3qE/v-deo.html
Explained so well
Great piece of fault finding mate,quality Vlog.
Great video on troubleshooting - even if it means some serious building work for the client to remediate. If the new cable tested out ok and you felt the rest would be even worse, why not condemn the entire circuit as a serious short/fire risk? Also - anyone else spot Lee doing his Three Men and a Baby ghost impression?
Absolutely amaizing , thanks a lot.
I am no sparks, so seeing this diagnosis in action is sheer awesomeness!
We had squirrels first (hole in roof fixed) then rats (via dodgy drain) and that certainly needed fixing first, otherwise this becomes a constant problem on the house.
When lights are recessed into the roof like that, would you normally expect just twin and earth or would you protect the cabling with conduit or armouring? (on the first install)
Absolutely Fantastic Educational Video - clear and concise. Top Rated Sparks. Thank you John
I would have put armoured in. Or look at a recessed surface mounted option. As a last resort conduit . Great video , gonna give this one another watch later
Soon as I saw that ceiling I flashbacked to that video. One of my first Artisan videos. Feel old now, bye 🐿😂
Great content..really well explained..Thank You
Good old rule of 6 for diagnosing. Or the half/half/half. Great videos
The best electrician at artisan electrics by a country mile so knowledgeable
Great at explaining the logic 👏 👌🏼
Excellent video explains everything clearly mate
excellent stuff ... pleasantly informative
Another superb video from John, excellent electrician
Amazing video here John.
Great vid, using logic as I did when a telecoms service eng. Is this a situation where ‘arc fault’ would protect from fire?
Great content. A false floor for ladder storage I think is very helpful.
exelent logical fault finding vidio great work
Brilliant video
Great fault finding
Great vid guys, your a top guy John
Very comprehensive fault finding but I wonder if it was the most efficient way to deal with this property from the beginning. As there are signs of chewing and it is a hostile rodent environment, considering the spotlights are relatively close between each other, perhaps was going to be a more definite solution to rewire with a better cable / conduit.
Great video very well explained, couldn’t believe the state of the cable at the end, that’s one hungry rodent lol
Brilliant 👏 explanation john
Explain everything step by step 👌
you tend to get them in country town areas squirrels i had in a loft council can be somewhat dumb since i told them they have fix the hole in the loft and just do a temp fix until the main problems of fauna getting into the loft and chewing the rest of the cables, ut was quite common were i worked not all the time but
Take an electric fence transformer and hook it up to all the wires in the ceilings! That will clear the mice / yard rats (squirrels) the next time they chew into those! Need some armored cable it seems, then electrify the armor! 💥🐿🐭 It seems like a good place for some linear up lighting along the ridge hidden by some molding or soffit, that way there is no wiring in the ceiling. Maybe an exterminator might be in order too? Keep up the good work, is lucky the place hasn't burned down. At least if they are going to keep the ceiling wiring please install AFDD's for those circuits, just what they are made for to help prevent the arcing that would start the fire.
Hello Team,
Interesting as ever, a test method know as 'The half split method'.
Well done Sherlock, I’m not a sparks, just interested bystander. Well deduced
John is the Man
Ive had mice wriggle their way into a back of a tsso, it actually got through the 20mm grommet with 2, 2.5t&e cables as well !! I'm staggered at how it squeezed in there, it was a bit if a mess but i found the issue.
very interesting
Standard fault finding, it's called binary search. Good job as always
Excellent video..
I wish I could afford to employ John.
Shit hot fault finding 😊
04:30 Pro move 👌
Very respectful
Very frustrating. I installed IP CCTV on a rural property and hadn’t even finished the job before suspected squirrels chewed through at a drip loop near the eaves. Data cable is much more susceptible to faults but less dangerous.
I see there was no tie wrap on making free box... great vid. Has anyone caught the squirrel..
I’d say it was Rats by looking at the droppings. Had them on my property some time ago
Finding the fault via a binary search algorithm. Nice!
Hi. Do you IR test at 230v when lights and loads are still connected or do you combine LN to earth? Thanks
it can be quite a laborious job if i remember correctly tenants think you got a trycorder scanner you wave over it to find the fault but as he shows you its much more complicated
Lee in the back at the end 😂
If the fault is on the wiring between a downstairs ceiling light and the light switch do you need to take up the upstairs floorboards to remove and replace it?
When wiring up a downstairs light both upstairs and downstairs breakers blew (nylex mcb push in type 6amp). Replaced both breakers but now only upstairs lights are working, downstairs no lights work, what can I check or test to restore power. Both breakers are working as I've swapped them around to check, could I have shorted something out?
Time to give those squirrels some tough love. A 12 bore springs to mind.
Run galv conduit on the surface tell the customer its all the rage for lofts rooms.other wise you will be back. Very well demonstrated but it does bring into the fray EICR testing as you say it would be a satisfactory and when you sign the cert i hope you put on a disclaimer.
Do you not have to test between LN - E when loads are connected? Or is it okay to test from L -E or N-E
Running cables in conduits would solve a lot of your challenges, do as Cory recommend /as we do in Norway) 😏
Needs a pest officer. Could be rats coming up the wall cavity.
In UK do you have armored twin and earth ? In NA we have AC90 cable in various sizes, conductors are covered with a metal flex exterior
I think SY is the closest, but it’s a steel braid under a clear sheath. You can get flexible metal conduit a bit like the aluminium armour on AC90 but it’s expensive. Steel wire armoured cable (SWA) is what we typically use outdoors or where mechanical protection is needed, but it would be unusual to see that in a domestic ceiling void
I think Artisan Electrics are doing a great job making electricians great again. Every job is MEGA. At least now, members of the public know what can and should be done when employing an electrician to do work for them.
Surprised the householder did not hear the little devils scurrying around as they feasted on their electric dinner. I did when a darling got in my loft - fortunately I got rid very quickly and only found some nibbles on the outer insulation nothing had gone through to copper and IR was good. Now I'm paranoid about any noise from my ceilings (bungalow).
That dropping on the ladder looked like rats to me too big for mouse methinks.
Exposed wiring is on trend at the moment - just clip a bit of T&E along outside the plasterboard and call it good
I’m an auto electrician and I see rodent problems a lot, sometimes writing off a car. I’m pretty sure you knew that there was going to be a lot of the wires chewed from the start but at one point I was thinking “why does he think just because that wire is only 2 years old it won’t be that wire” obviously rodents don’t care how old a piece of wire is. I understand this was basically a tutorial on how to trace faults. I remember watching the video from Jordan on this house and I thought then, he should be recommending the ceiling be brought down and lights rewired with conduit or some other protection for the wiring. I’m sure there would have been other wires chewed when Jordan was there but you can only advise, it’s up to the customer how far they go. In my experience as long as you get the fault cleared a customer will not want to go further until it goes again. I have a 2021 VW non runner with rodent damage to get fixed next week and it’s not the first time this customer has had rodent trouble with their cars, last one the insurance wrote off. I told the customer to always put their car in the garage and rodent proof it. Customers don’t always listen. Nice video. 👍👍
We use Lodi 'anti rodent spray' gives 6 months protection on cables. Bromley Pest Control
So rodents will chew through wires in a motor vehicle sat on a drive in the country side? Does the vehicle have to be sat there for a while, or can it happen overnight ?
any follow-up ??? to see how all the cables wore ?
I don't think it's squirrels more and likely probably Rat's feasting on a the light cable meal.
John has gone MEGA... dude lol
That looks to me like the cables have fallen victim to the dreaded Glis Glis, an invasive form of dormouse that is tricky to get rid that is becoming a problem in the south of the country.
I was thinking I recognised the bedroom and I was thinking it was another maybe it was CJR or Nick Bundy that had it. Got a surprise when you replayed a bit of the video to see it was Jordan that worked on it. Looks like what ever rodent lives in that building is going to keep you busy
Had this happen in a flat I lived in that was on the top floor of a Victorian house, squirrels came in off a tall tree into the eaves under the slates and chewed through the ring main twin and earth. Made a hell of a mess
A colleague went to a house last week with squirrel damage after a report the RCD kept tripping. Stripped cables and structural timbers virtually chewed through in places. The house was due to be occupied (Not any more). Currently waiting for the thermal insulation to be removed to allow a visual inspecting of the structural damage as well as the wiring prior to any repairs. That brings the total to three this year (First two were rats though). With rodent damage and an accessible loft we visually inspect as well as test because you cant rely on just the insulation resistance test to prove the circuit is safe again. They like plastic water pipes with their knobbly fittings as well with the predictable but visible leakage. Personally I don't think "Copex" would stop the damage but may minimise it (We've discussed using it but not actually tried it yet).
Wow what a nightmare!
Steel conduit or flexi, or armoured might be the only way.
@@tobysherring1369 And an electric fence energiser connected to the conduit/armour.
As a electrician I hate 12 volt halogen spotlights there the lamps are always out or the fitting are making dodgy connection and the transformers can't hold 2.5mm2 wire. In the Dutch code was is a rule that wireing at all times could be replaced without structual demaging the building. So domestic all wires is in pvc piping by size 16 and 19mm. max 4 90 degree bends and bend diameter minimum 4 times diameter.
When you are doing an IR on the new cable Jordan put in and it is showing 20 m ohms clear do you think Jordan stripped it when he was pulling it in between the lights if it showed 20 it would have worked when he done the job what was the IR when Jordan done the IR of his new cable
Need to use metal conduit or armoured cable, connected to an electric fence energiser.
You can use flex pvc pipe and put your cable in……..😀
Did he turn off the rcd at fulll load
Flexible armoured?
you should get a wallabot to find where the wires are being run
How would you price a job like this with the customer? im guessing an hourly rate
we have possums here in Australia
Need to setup mice traps.
Out of interest is there a reason not to use swa or some kind of armoured cable inside a house with pests?
There's nothing wrong with it but it's just a faff. I guess h07 would work well tho
Thanks for the reply 👍
a trace toner to follow cable route
Could save time no continuity testing
needed .
Was that Lee hiding in the background at the end?
Rodent damage should be covered under home owners insurance.
Yeah gravity or the switch
A sparky with a vacuum? Trash the place and blame the plumber, that’s the way 😂
Thats MOUSE damage not squirrels. Bromley Pest Control
Rat I believe the droppings are large
When fault finding you can leave the earths twisted together. That's the way we do it in Australia