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Client reports circuit breaker tripping. Cory: immediately identifies circuit breaker is shagged. Jordan: Becomes preoccupied with the idea that the heavy duty 4mm cable has somehow developed an intermittent dead short without the RCD noticing. I know which one I’d rather pay £100 an hour for.

Mon-Fri and Sunday: working about 60 hours... Sat night: sitting with a beer watching work related videos on KZfaq😑 Can’t deny I love the videos though, keep up the good work!

That Cory chap sounds very professional and has he tried the vegan steak bake from Greggs, very nice

Amazed watching this. My solar was put in about 10 years ago and the installation quality is in a totally different league to this!

I agree with him about the gloves. I got used to it doing large commercial jobs, so much that you feel bare and vulnerable without them 😂

I enjoy Cory being around✌🏼

Great dynamics between yourself and Cory - excellent additional to the channel.

Cory is a great balance to the team. Glad he’s on board

Super Job Cory! You found a solution that fixed it. Wow Great team work! THUMB UP!!!!!!!!!!!!! Cheer!

Remarkable honesty in these videos, really great example of working electricians 👏👏

From a recently qualified a grade electrician from Australia , I am loving your educational and informative videos .. love your content and very interesting /beneficial for Me to watch. Keep up the good work boys love it 👌

I have been in the game 30 years+ and you are always learning as will all know and Artisan you are far ahead of me in the Testing side of things and more. What surprised me was a little bit of contempt re-inserting the DNO fuse . No Mask Goggles , No Gloves i used to do the same as you so i do not wish to tell you how to suck eggs lol. It was only through looking at this video's recently where a Guy explained how much damage can be done by even a simple arc .I also have noted DNO sparks NEVER re-insert these without a FULL face mask. Always enjoy your vids and think your professionalism is reflected in your subs. I would be interested in your views and understand the installation was not under load conditions when fuse was re-inserted Having worked a lot on large sites where H&E have killed the Trade we are always walking on a tight line .

I love solar edge for the fact that you can just log in to the web portal and it will tell you each panels production etc good systems if installed correctly

the more i watch your videos, the more i become interested in the EV side of electrics and i am now considering doing an electricians course (full course not a 1 week course) to become a qualified electrician and specialise in the green energy side of things. keep up what you are doing and hope you inspire others to go in the same direction. credit to all electricians out there

A New title for the video, "Polishing a turd" :) Love watching and listening to your troubleshooting!

Cory seems like a cool dude. I feel his pain with the errm hand issues. I can recommend O'Keefe's working hands cream. Works like a dream when I remember to use it.

This new person brings a completely different and interesting dynamic.

What I like about your videos is that you do things like all tradesmen. You even admit - 'What do we do' but of course you come up with the solution. II used to do electrics in my earlier day of house renovations but could never tackle what you guys have to do (and show on paper!) these days.

Great fault finding and resolution. Good improvements to a shoddy slapdash install too. Top marks.

Please don't stop making vids, very informative and beats the BBC.

That meter box was just lovely, it's just been thrown in! great job considering what you had to work with.🙂

Was warming up to Cory till he basicly said he liked Greta 🤣🤣 Great team work keep them coming !!

I Love nerding out with these Electric guys..great video!!

You are correct in that all TV is rubbish in the USA also ! Love your content !

I have been retired for a while now. I love the site banter. Watching this reminded me what it was like. Keep it up. Would love to see the gloves when the are printed haha.

“Feeding electricity to the sun” its nice that the sun gets some energy in return !

Cody’s tool of the day is a great idea!

I like the tool of the day! I see it earlier in the video and thought that is a bit of me!! Will definitely be purchasing!

Love your videos Jordan ,very interesting and informative :)

so cool this EV stuff, super nice content and neat work as allways

Genuine Top Guys! 👌 Quality as always

Very interesting topic. Thank you very much. Good luck.

There are quite a few situations were you do work live, such as industrial commercial, and medical premises. Ford's won't let you shut down a production line , so you can word dead , not will Tesco let you switch of there computers because they need a few extra sockets in there computers room . At the beginning of this year in stalled 5 hot air curtains in a yoga and gym club , that in use 7 days a week . 5 brand new circuits all connected to two live Hagar 3 phase boards . So when you work live make sure you don't work alone and make sure the person you work with know what to do in an emergency . It's on of the joys of being a sparky working on live circuits . You don't have to be mad to be a sparky but it helps

When the sparky says 1.5mm is good for 23 ish amps... You don't want your ring main fitted. I would assume that the cable run is also out of spec. But you really can't tell how far it is from The video. That house looks like it's old and had a few refits. And sadly I can say I've seen worse. Don't you test for DC leaks on the AC?

Nice job, great to watch!

Interesting. It’s evidently a long run from the inverter to the main meter cabinet, evidently with the ‘generation’ meter also mounted in it. My own place is much more compact by comparison, but with the gen meter and the relevant RCD and switchgear on the other side of the wall, which happens to be a front porch, with the standard meter box being on the other side of it’s wall. The inverter, which is an SMA “sunny boy” 1600TL product, is also inside the front porch, with the dc isolator next to it, and some ducting up to the roof attic for the panels. Alongside the dc isolator is a warning notice that the ac must be isolated first during daylight if required - not trying to break the dc current. If the inverter is working normally, it then shuts down into a fault mode - fed by dc only, with the relevant fault display. Occasionally that happens if there’s a mains power cut during daylight. Around 4:50 “a bit of a mess” is an accurate description! The other thing that’s a bit hairy in your presentation is the installation of private kit inside the meter box; in general, it’s owned by the utility supplier as far as the master fuse, and the DNO beyond. So in my case, the generation meter (which belongs to me) is not in the box - just a pair of cables into it from the inverter. I’ve had to have the utility firms meter replaced after it failed - most likely due to a local thunderstorm/lightning strike. Free power for a little while after that, until I noticed the fault and had to negotiate roughly how much I’d used! Incidentally, re ‘Smart’ meters (mentioned by others), recently I had a fair bit of correspondence with the utility supplier (SSE at that time) with their compatibility - or lack of - with solar PV. They did not want to install those at such sites then. I don’t think they know what to do about export when they are in use - the new ones should be able to measure output as well as import, but then one’s generation meter isn’t ‘smart’, so they can’t match the two together when handling ‘feed in tariff. At present, I’m on 50% deemed export, and they probably prefer to stick with that until the whole lot expires.

Love the 'Allo 'Allo 'pull zee main fuse' impression!

Do your IR testing at 250V first. Some units don't like 500V and can be costly to repair. More often than not these very low readings are hidden equipments and not cable damage.

Super I always enjoy your videos helpful

I’m a meter fitter (I know scum of the earth) but it’s good to see that electricians have to deal with poor solar installers

Great work from you two. As questioned, this deffinitely looks like the unfamous Balkans standard install, which tends to work until it doesn`t - 50 minutes to 50 years, no promises made :)

Great vid once again Jordan. Thanks for sharing. 🐵

Interesting to watch two eyes working on a job. I wonder if it's a help or too many cooks. Some may 'think' faster but that may confuse the other in the process. I think it works if one eye details the job they will do, and the other eye reviews what they intend to do, as a waterfall.

Good job 👍

What excellent young chaps you are. Do you cover Leicestershire?

I like Cory already. You seem well suited together.

Very interesting as a solar user.👍👏👏👏👏👏

Remember working on a customers house who had one of the first solar systems fitted in the UK years ago planning had no idea of what it was . A German firm came over to fit it before all the feed in tariffs . they wired it so the old disc meter went backwards when the solar panels were producing electric. the owners soon learnt not to let the meter go back past the previous meter reading because the billing system assumed the meter had gone all the way around and a huge electric bill would appear So they would on very sunny days run lots of electric heaters outside to make sure the meter never went too far past the last previous meter reading and if it did they would make sure they had to use a small amount of electric to stop any investigation . Every time they came to change the meter they would runaway . the installation was covered in Achtung stickers and warning stickers of a electrocuted man . free electric was far better than feed in tariffs they had years of being hassled by energy provider but always refused to change the system .

Cory is a very good Electrician he should start up on his own

I've got a similar unit in my shed. Had a faulty MCB, totally over sensitive.

Great video. Nightmare of a space issue there especially if customer decides to upgrade to smart. One thing I'm curious about is why go straight in at 500v and not 250v?

I think BigClive likes disassembling broken MCBs :)

Good, I picked up right in the beginning that the CB was faulty because of the sound and when you pushed it up to reset it did lower a bit. Regarding the "lockable enclosure", it would still not be acceptable to me here in SA because that specific enclosure would fall under what would be termed "suppliers" enclosure, therefor no consumer equipment would be allowed according to our regs. That would certainly save you the headache of in situations like these. I hate enclosures that look like a crow's nest with no space or order in them. Much appreciate your videos.

I am sure The inverter shuts down if it cannot detect a grid voltage. As the voltage from the inverter needs to be higher than the grid supply. Pleas e correct me if I’m wrong. The shut down is there to protect linesmen from shock if they are working on the lines down the road.

Distinctive and good work......... Follow you from Iraq

Never working on anything that's live? Sometimes you don't have that luxury, for example when working on the installation in a hospital. You can't go there switch circuits off where someones life support could be connected to. And for such a purpose these pliers are made for. The partially insulated which electricians normally use are only to protect ourself. The fully insulated are to prevent a power outage caused by short-circuit. And depending on the area where we use these also to protect ourself against the arc of a short-circuit, for example in a CAT IV area. This is used in addition to an insulated rubber mat where the electrician stands on (these are also rated 1kV, like the insulated tools), insulated gloves and eventually a face shield and arc resistant clothing. And of course only by an experienced electrician. 400V, 5kA arc. Video is slowed down, that happens in 1.2 seconds: kzfaq.info/get/bejne/brOjnMaasJOddas.html BTW: Voltage testing is also considered as working on a live circuit...at least it is here in Germany.

Nice one guys 👍

It takes a minimum of 3 mins for the inverter to kick in after supply has been switch on check out G98/G99 standards, and MCS, if you want a bit of advice on solar drop me a PM, sometimes the DC disconnect isolators are built in to inverter, what size is the system if it’s more than 16 amp it requires DNO approval so should only be on a 16 amp mcb unless there’s DNO approval (G99) ( what is max out put of inverter )

8 have waited for an electrician for 6.months now. Wish there were more around.

2 guys at £100 an hour, well at least the customer got Laurel and Hardy for their money

I enjoy your video even as a layman it teachs me alot about how electricity works in the uk! keep up the good work.!!Btw where are you based incase us viewers want to hire you for a job???

Great sir👍

Good stuff I have 6 mcbs maximum on my current Wylex consumer unit. Looking to replace it with a new 18 edition dual RCD etc. Is it a good idea to install the new one with say 12 mcbs even though I only need to use 6 mcb now but will be doing an extension next year and might need an electric shower etc. Thank you shower

The subtitles for Greta are awesome! Grub grub thumb bag! 🤣🤣🤣

What's the idea behind the two isolators, one at each end? I know you mentioned about been able to work on the CU safely, but surely the isolator would be better on the incoming tails to the CU? The other end will make the PV side safe.

At 18.05, yes the system should be off but you don't know if the system has been wired correctly and maybe still live when turned off. A friend of mine was shocked when he checked a large electric motor in a factory, all he did was put his hand on the motor. The company electrician had wired power to earth, yes he did chase the electrician through the factory to tell him what he thought. As for the fully insulated tool, a good idea.

love the youth in your video he is such so so funny but the future well done

If you pull the main fuse then the solar inverter will shuts off. One of the basic safety features of all grid-tied and hybrid inverters need to be approved for connecting to the power grid.

The total installation needs to be rewired and installed correctly. The customer is lucky you took on such a lash up !

I installed these kinds of inverters quite easy to install and trouble shoot

At the 15 minute mark, did you do an insulation resistance test from the meter side of the closed isolator to test the feed cable to the inverter on the other side of the isolator?

What a mess that was. Sterling work guys. It's always a right headache undoing and redoing what a butcher has slashed in. The installation inside was bloody awful.

I' am watching you video from nepal

Interesting 👍

send the faulty switch to bigclivedotcom for autopsy

It looked to me that when you were doing the insulation test for the feed from the inverter and you realised the meter was still connected that after you disconnected the meter and did the test the isolator was still switched off. So you were testing about 3" of cable. Or did you switch the isolator back on off camera?

Caddy van tour please!!

Super video

A DC isolator is required as well as an AC although I've never seen an inverter produce anything once disconnected from the AC, after all they're required to shut down without an AC supply and have no voltage or frequently to synchronise with.

Leaving exposed conductive parts on the end of that flex feeding the CT is dangerous in a box like this, even if it does require a tool to access, consumers need to check their meter and you can't expect them to realise these exposed parts are 230V. If you opened this box and saw single insulated tails, you would code it. All the supply equipment is double insulated. All of the solar gear should have been mounted in a separate box, with the CT inside an enclosure tp maintain double insulation. Plus you took that cable off an RCD...

Hi been following your channel for a while I've checked your website and it says you can travel around an hour from Cambridge. We've relocated to Leicestershire and would like to have you fit a Zappi in the new year. Maybe we can do a video each on our channels of it emphasising the great PV feature? Well have 16 panels to use. Cheers George

I'm on the market for a clamp on tester that does EVERYTHING! LO-Z, HZ, Temp, AC/DC Amps and volts. Is there one that can do Amp testing with the clamp and the leads? also, I've heard that Klein really only works well in the 0-40 celsius range. And Fluke is like really $$$$

I always use 250v first when doing insulation resistance testing then when I’m sure nothing is connected use 500v

Didn't you need to change the MCB 6A with an RCBO 6A (or an Combination of one RCCB and one MCB)? The Original Installation was through the RCCB to both of the MCB. Now you have one RCBO and one MCB without RCCB protection. Please let me know whether that is correct. Thanks. BTW: I like your channel. Greetings from Austria (The Country without the kangaroo's).

Glad you spotted the missing DC isolator... Should be one per string since they are geographically separated... these PV installs were a complete wild west....

Great video and good problem finding Jordan & team, thanks for your videos. I wondered what safety cut off feature there was so if the grid supply fails, the solar doesn’t back feed into the grid whilst the dno could be working in presumed dead equipment?

You walked by the DC isolator lads, on the inverter box look at the lower left sticker, HUmmm! Makes me wonder.

Great video.

Meter fitter is going to have fun fitting a smart meter in with all that crap

Cool two guy from Ireland

3:43 The boiler flue is mounted upside down; the eccentric inner tube must stand up

DC isolator isn't a requirement. The toggle switch on the solar edge is fine as a functional isolator due to the optimisers only putting out 1V per panel when disconnected from the inverter. But saying that its always good practice to install a DC isolator.

Oh how I wish you where in Bristol !

What would be amazing for Solar fault finding panel side would be a DC volt stick/pen wish it was a thing! I’m a solar PV installer and it would save so much time lifting each panel and looking for un connected panels

What about that lovely massive Wristwatch tho? What model is that? Great tips, thanks.

At 3:10 - Cory's right GT is Cool!

Great video. Random question - What make are the jackets you are wearing? Interested in them for my business 👍

Looking at the number of panels it doesn’t want to be on a 32amp mcb or rcbo... 4kw setup 16/20 max Does it actually need to be rcd protected? Certainly if it was an armoured cable Then it wouldn’t have to be

If I want to future proof my house for possible future solar install, what size/core NYY-J(?) cable should I run thru the house (From the consumer unit area to the attic). Currently doing major renovation and would like to put the cable in now to avoid decorating/trunking issues if we ever decide to add solar PV.