Remotely shag the tools, Make the battery when plugged into the tools destroy self destruct like a neutralisation system, make the tool boxes explode with blue dye with a speaker system that just shouts and screams constantly built in when the theft has taken place 😂
Prompted by your silicone comment... There's a building inspection channel in Aus called "Site Inspections". He has some classic sayings like "do your best, silicone the rest", and "good from far, but far from good".
Super work mate,love watching your channel such different electrical content every time.Your attention to detail is always quality to watch,cracking job.
PV systems in the Netherlands are protectes with B characteristic mcb's or gG fuses. But never with C characteristic brekaers because of the high trip current.
Nice Video! Cheers for using #PVezRack from Clenergy! Cheers to your mate, for sending you TimTams! Our Australian HQ had chuckle when you were eating TimTams while putting in your PVezRack racking :) , love it!
Here in France it is prohibited to wire a string in such a way that it forms a circle or a loop. That can create an attraction for the lightning. Personaly I think that a metal roof in your case is already a good attraction to loghtning so shoud not be the problem but rules are rules. It is the same thing with grounding cable - shoud not make a loop in relation with string cables. So technically first way you showed would comply with our regulations, but the second does not.
I doubt it's because some "attraction for the lightning". Most likely it's to reduce loop area (it will always be a loop, just in some scenarios the loop will be very thin if the live and ground cables are run next to each other) to reduce induced currents in case of nearby lightning strikes.
As someone who lives 2 minutes from here. Be very very careful with your tools round there. Travellers camp is 30 seconds round the corner and they are known for stealing anything not stuck to the floor
Agree 100% that the PVUltra cable is awesome. I managed to get a sample reel off Dan at Doncaster Cables last summer before it even launched for adding two strings on a new roof at home and it made the work go so quick and it looks great too.
Very nice install Cory. But, is a ground cable not required in the UK? In Holland we need to ground all panels, frames and micro inverters. Even though the micro inverters are isolated.
Well done for changing suppliers. Wish more people would pay attention to this stuff. Can you name and shame? Also share the name of the more ethical ones you use now?
hmm, i really want to understand why you put an optimizer under each panel on such an pv installation, what are the benefits? they are all in the same direction and angle and all are not in any kind of shadow. here in germany we have these things to but i learned that you use them only when you have strings with shadow on some of the panels so the don´t pull down the power from the string or when you have a string with panels in different directions so that you can have the maximum power from the panels. in my mind putting them on such an pv array like here is a bit of waste of money since they don´t really do a thing on such an configuration, or do they bring other benefits? would be nice if you could do a video about them since i´ve seen it in some videos now that you over in the uk seem to always put them on a installation
The other benefits are mainly safety related, you’re never working on high voltages, and in the scenarios of various DC faults, the switch themselves off and notify me exactly where the problem lies.
You get some good jobs feller..ask them to put a white string inside every cable so stripping inner is so much easier ,,,had some nasty multi core cable’s lately..😢
Solar Edge recommends against DC isolation on their system, as it’s built into the inverter and adds an additional point of failure. Additionally it’s worth check the latest updates on this regardless of solar edge, Efixx did a good video about it. Re bomding the panels, the solar edge has short circuit monitoring / leakage etc built in. They’re also screwed into a metal building attached to the ground.
It's mind boggling the lack of uptake of PV on industrial buildings. The hardware for that job is what £5k plus the same in labour. That system is probably cost neutral in about 2 years, from then on its saving money.
Hi, maybe when they realise it’s an easy win for reducing their carbon footprint and all that, they will do it. Breaking even in 2. Years should do it but why has it taken so long? It’s the best, way use it share you generate it. Take care M.
May be a daft question, but doesn’t wiring your strings from panel to panel in a circular motion cause an induction loop? I’m sure my on my solar he mentioned that it does. Anyway good video pal!
@@corymac I was thinking the same thing, how else can it be done haha. Just wondered if the tutor was speaking actual facts, as we all know the difference between a classroom and a site is totally different!
I guess in theory if you made a perfect loop it could, but I’ve done induction loops before for hearing aids etc, and I can tell you, it wouldn’t work with aluminum and how we’ve done it on a roof. It needs a ferromagnetic material at the least 😁. The currents and layout wouldn’t be ideal enough conditions in my opinion
Wow, those Tim Tams really didn’t travel too well, looks like they've melted and re-solidified. Sure they tasted alright but nowhere near as good as fresh!
Watching the video, but was just enquiring what make of panels you are using now? Thanks in advance. My panels got damaged recently and I don’t want the unethical panels on my roof. Cheers
Thanks for the reply, did see the product name on the box eventually. Brilliant content young man, and superb electrical work as well! Keep up the great work. 👍👍
@@corymac I used to work in the Lincoln branch, but sometimes on rush orders I had to go and collect the cables ourselves instead of having them delivered. This was in 2003, though in a Mercedes sprinter.
We are not allowed to have the DC + AND - in the same conduit... cant even be next to eachother in the cable tray... or is that a Dutch regulations thing only??
Hey mate, Here the rules for the segregation of AC and DC cables are outlined in Section 528 of our book ( BS7671 ). Here are some key points: 1. **Physical Separation:** It is generally recommended to physically separate AC and DC cables by using separate cable trays, ducts, or enclosures. This helps prevent electromagnetic interference and reduces the risk of safety issues. 2. **Barriers and Distances:** If complete physical separation is not practical, the standard suggests the use of barriers or maintaining specific distances between AC and DC cables to minimize interference. 3. **Insulation and Shielding:** The use of insulation and shielding methods is encouraged to further reduce the risk of electromagnetic interference between AC and DC circuits. In this scenario as it was a
On the Van theft. Contact crime stoppers. Give details of the van and description of person. Tell them they looked to be selling drugs to young children.
We’re UP NORTH today! come on it’s only Donny only just in Yorkshire not exactly that far north. I assume the customer is supplying the cable for the job 😂 your going to need a bigger circuit breaker for that 12kw I recon else you will be coming back “up north again” oh and they are defo roofing bolts only southerners try and tighten them with a screwdriver the rest of us nip them up with a spanner
Hi mate, You sized the AC supply circuit to inverter at 16aml 3phase. Sizing of AC element of the inverter was 12kw. Is that 3phase load 12kw total so 4 per phase or 12kw per phase. I’m assuming 4 per phase. If so is all 3phase loads worked out like this or is the inverter different.
To be clear my question was born out of curiosity and the want to understand not to second guess.. With the panels connected I’m sure the calculation was based on output of arrays at an average output taken into account. The inverter CAN output 12kw doesn’t mean it will. And if the array has been considered properly I’m sure it’s been taken into account it won’t push out that amount exactly
I actually caught the guy breaking into my van and held him till the coppers showed up. The first thing they said to me have you hurt him. Then gave him a warning and let him go to say I was pissed is an understatement I wish I’d sorted him out and not called the police
I’m aware of induction loops, there’s a paper from the universities of Greece - Lightning performance study for photovoltaic systems I feel whilst it’s a valid consideration, the surface loop areas here as the cables are actually clipped so close together, are very minimal comparatively to a normal conventionally wired system
The other benefits are mainly safety related, you’re never working on high voltages, and in the scenarios of various DC faults, the switch themselves off and notify me exactly where the problem lies. ( p.s - they’re about £40 each )
Great project, only problem with turning half the panels upside down to save cable is forming an induction loop, especially on a steel sub frame. The lightning would love that. I'm sure it will be fine considering the close panels and aluminium frames. Keep up the co-op projects, we love them.
not only that, you are also creating radio disturbance. at least here if it where to be inspected he would be forced to redo the installation. always run positive and negative along side in DC installations. The first idea was according to regulations. the second big NO NO
Yes agreed, however Cory did get in touch to say they were not upside down, he was just reducing the cable run by centralising the entry point. I must have had too many beers when watching! 🍺
Really is sad the lack of interest the police have. I’m sure it be different if it was one of there own. The lack of law and slap on the back of the hand law doesn’t help neither.
DC isolators? No longer required, and actively discouraged when isolator is built into inverter, not to mention this is solar edge so will drop to 1v per panel in fault / grid outage etc
The 3ph solar edge include internal dc and ac protective devices including SPD. Also, following recent insurance industry and MCS advisory, superfluous DC isolators should be avoided where already present on the inverter.
The 3ph solar edge include internal DC and AC protective devices, including SPD. Also, following recent insurance, industry, and MCS advisory, superfluous DC isolators should be avoided where already present on the inverter.
What happens to the strings if the inverter goes faulty? Surely then you have no isolation outside of the inverter? Not ripping your work just curious. 🧐
The optimisers fail to 1v per panel. So in the event of a fault where the inverter failed, the peak voltage on the system would be a grand total of 20 VDC
What do you think can be done to help Tool Theft? Thumbs up this comment if you have also been in Oliver’s situation 😔 ( I have been! )
Leave the UK and move to Scandinavia, the Netherlands or Germany? 😜
@majofi2879 It’s more and more tempting every day
The answer is partly, much much harsher punishments for tool thieves!
Remotely shag the tools, Make the battery when plugged into the tools destroy self destruct like a neutralisation system, make the tool boxes explode with blue dye with a speaker system that just shouts and screams constantly built in when the theft has taken place 😂
Heard of the electrician who electrified his van doors with 1kV if his alarm went off?
You’re absolutely killing it Cory. Very impressive mate
Thanks mate! 🙌🏽
Turns out that extra oomph from the solar panels was all they needed to finally get the pre-sleeved T+E machine up and running!
Good to see the TimTam slam taught correctly. Lol. I hope you enjoyed them. Cheers for the shoutout Cory.
Cheers for the delightful snackage!!
Artisan will be jealous about that job
Especially after the whole fiasco...
@@klarnorbertFiasco?
@@17marijn71 He had to layoff alot of employee due to declining available work. Which caused some backlash i suppose.
Now that's a fun fact & brutal😂
Problem is artisan is just a normal electrical company with big overheads and no main big contracts 😞
Prompted by your silicone comment... There's a building inspection channel in Aus called "Site Inspections". He has some classic sayings like "do your best, silicone the rest", and "good from far, but far from good".
4:40 massive respect to you for changing suppliers Cory
Another banger bro 🔥 You can tell Oliver is one of them sparks that you can learn a lot from!
Appreciate that man!! Words from the best 🙏🏼🤝
Super work mate,love watching your channel such different electrical content every time.Your attention to detail is always quality to watch,cracking job.
Thank you very much! Great to have you
19:54 Gimli and legolas... lord of the rings return of the sparks..
Awesome video and top job Oliver, Cory and team!
Great video as always ! Love the videography, must be someone really talented behind the camera
It is someone very talented, they must get cold toes from all the standing around, but I bet they still carry on anyways 😅
Not even started the video, but already liked it :P
Legend!
Looking forward to this one!!!
Great work boys😊😊lovely installation
Love the idea of a a tool bait van!
If the threading goes all the way up the shaft it's a screw. If there's a smooth bit it's a bolt.
A bolt is threaded for "twice its diameter" - yes, you are right.
PV systems in the Netherlands are protectes with B characteristic mcb's or gG fuses. But never with C characteristic brekaers because of the high trip current.
Just saying Cory, editing transitions for this vid are on point 👏👏👏👏
Learned a lot in this video
Nice Video! Cheers for using #PVezRack from Clenergy! Cheers to your mate, for sending you TimTams! Our Australian HQ had chuckle when you were eating TimTams while putting in your PVezRack racking :) , love it!
Nice to see you here, Clenergy, email me on at cory@oyelectrical.com. I have a proposal for you! I need more tims
awesome video, really appreciate the insight into British electrical installs
Glad you enjoyed it! 🤩
Brilliant job, Cory. So sorry to hear about the van thefts. May those responsible serve eternity in the seventh ring of Hell.
Great job to you and the guys. No brainer on the PV ultra keep up the good work
Here in France it is prohibited to wire a string in such a way that it forms a circle or a loop. That can create an attraction for the lightning. Personaly I think that a metal roof in your case is already a good attraction to loghtning so shoud not be the problem but rules are rules. It is the same thing with grounding cable - shoud not make a loop in relation with string cables. So technically first way you showed would comply with our regulations, but the second does not.
I doubt it's because some "attraction for the lightning". Most likely it's to reduce loop area (it will always be a loop, just in some scenarios the loop will be very thin if the live and ground cables are run next to each other) to reduce induced currents in case of nearby lightning strikes.
Great video Cory. Keep them coming
Well done for getting some Enya music in there. 😇😋
As someone who lives 2 minutes from here. Be very very careful with your tools round there. Travellers camp is 30 seconds round the corner and they are known for stealing anything not stuck to the floor
Best electrician on CZcams ❤
Agree 100% that the PVUltra cable is awesome. I managed to get a sample reel off Dan at Doncaster Cables last summer before it even launched for adding two strings on a new roof at home and it made the work go so quick and it looks great too.
It's £500 for a 100m reel 😂
@@techtactics788 and?
Doing strings like this, a large loop can lead to surges and electromagnetic interference. Read this in our book on the course.
I've just been to a local Lidl in Germany, and they happened to have the same sawing guide 😆
Forget Tim tams. Used to do that with penguins all the time
I'd love to get Doncaster Cables here..... But I'm in Australia - so Olex is what it is.
Artisan will be wounded they didn’t get this job 😂😂😂
Great video. Quality job
Is there a link to the site to buy off cuts from ?
Very nice install Cory. But, is a ground cable not required in the UK? In Holland we need to ground all panels, frames and micro inverters. Even though the micro inverters are isolated.
Nice job. Any reason the inverter is outside rather than indoors out of sight and the weather?
That’s where they wanted it, it proudly displays their cable 😁👍🏼
Well done for changing suppliers. Wish more people would pay attention to this stuff.
Can you name and shame? Also share the name of the more ethical ones you use now?
'i feel like northerners really do just yearn for the mine' haha pissed myself
I work on the railway and the cables we use have meter markings on them. Is that the same for the cable you use
Sorry but imagine walking on to site with that hard hat on 😂 would get absolutely hell’d for it
Mate, this hat is a babe magnet 🧲
The fact all the guys on here don’t like it, is because, they aren’t babes
@@corymac 😂😂 love it ! Boss content though keep it up
Very little slope, do you think they will have to be cleaned now and then?
Brilliant!
hmm, i really want to understand why you put an optimizer under each panel on such an pv installation, what are the benefits? they are all in the same direction and angle and all are not in any kind of shadow.
here in germany we have these things to but i learned that you use them only when you have strings with shadow on some of the panels so the don´t pull down the power from the string or when you have a string with panels in different directions so that you can have the maximum power from the panels. in my mind putting them on such an pv array like here is a bit of waste of money since they don´t really do a thing on such an configuration, or do they bring other benefits?
would be nice if you could do a video about them since i´ve seen it in some videos now that you over in the uk seem to always put them on a installation
The other benefits are mainly safety related, you’re never working on high voltages, and in the scenarios of various DC faults, the switch themselves off and notify me exactly where the problem lies.
Why do you use optimizers on an unshaded flat roof?
Great job.
You get some good jobs feller..ask them to put a white string inside every cable so stripping inner is so much easier ,,,had some nasty multi core cable’s lately..😢
They do have a string inside of this! 😁
Will a 12kw inverter distribute 12kw across each the 3phase evenly or 12kw per phase
12kW split between all phases. The number represent the amount of PV power it can invert.
Where are the DC isolators? Are you still not earthing the panels?
Solar Edge recommends against DC isolation on their system, as it’s built into the inverter and adds an additional point of failure. Additionally it’s worth check the latest updates on this regardless of solar edge, Efixx did a good video about it. Re bomding the panels, the solar edge has short circuit monitoring / leakage etc built in. They’re also screwed into a metal building attached to the ground.
That is exactly how I eat Girl Scout cookies!
We don’t have them in the uk, I dream of one day trying them!!! They look pretty dry from tv though I must say
Most people call machine screws bolts
🎉impressive job cory
Thanks!
Good stuff Cory.
It's mind boggling the lack of uptake of PV on industrial buildings. The hardware for that job is what £5k plus the same in labour. That system is probably cost neutral in about 2 years, from then on its saving money.
I can’t understand this. Most factories will use everything they produce when running during the day. To me it’s a total no brainier
Hi, maybe when they realise it’s an easy win for reducing their carbon footprint and all that, they will do it. Breaking even in 2. Years should do it but why has it taken so long?
It’s the best, way use it share you generate it.
Take care M.
Lmfao shout out to batley.
Great job. How do you size the ac cable off that 16a breaker is it normal rules?
LOL another victim of the Lidl centre aisle
Luv ur videos, well done mate
Great video! I watched it twice 😃
Awesome! Thank you!
May be a daft question, but doesn’t wiring your strings from panel to panel in a circular motion cause an induction loop? I’m sure my on my solar he mentioned that it does. Anyway good video pal!
Think of it as plumbing, it needs a flow, and a return. If it doesn’t have that, it won’t work. Not sure what your installer was on 🤣👍🏼
@@corymac I was thinking the same thing, how else can it be done haha. Just wondered if the tutor was speaking actual facts, as we all know the difference between a classroom and a site is totally different!
I guess in theory if you made a perfect loop it could, but I’ve done induction loops before for hearing aids etc, and I can tell you, it wouldn’t work with aluminum and how we’ve done it on a roof. It needs a ferromagnetic material at the least 😁. The currents and layout wouldn’t be ideal enough conditions in my opinion
What was the PV company with the child labour?
Wow, those Tim Tams really didn’t travel too well, looks like they've melted and re-solidified. Sure they tasted alright but nowhere near as good as fresh!
Where on their website do they sell those off-cut cables mentioned at 18:03 ?
Watching the video, but was just enquiring what make of panels you are using now? Thanks in advance. My panels got damaged recently and I don’t want the unethical panels on my roof. Cheers
These are Q-Cell. I would need to dig deeper, but they seem to be not on the UN list.
Thanks for the reply, did see the product name on the box eventually. Brilliant content young man, and superb electrical work as well! Keep up the great work. 👍👍
Thanks Richard!!
I’m maybe being thick, but what’s the link to the UN report? It wouldn’t surprise me if all the silicon from east Asia uses child labour.
Correct me if I'm wrong: They have installed PV panels on the roof to only power lights that are installed under the roof?
Pretty much 🤣🤣. Although in the summer this will generate far more than the lights draw
Does the inverter have to be outside for a reason?
Hey Michael, customer request. They want to show off the cable 😁👍🏼
( P.S - this would be an ideal setup at your workplace 😉 )
I was going to ask the same question, surely it would have been better mounting it inside out the way? That tray work could have been inside then?
I wondered if there was a requirement so firebrigade could isolate without entering the building
The panels should drop to 1v per panel in the event of fire / system failure ( optimised )
I used to work for CEF and would collect some cable from Doncaster Cables factory :)
Nice! They used to have a CEF next door
@@corymac I used to work in the Lincoln branch, but sometimes on rush orders I had to go and collect the cables ourselves instead of having them delivered. This was in 2003, though in a Mercedes sprinter.
We are not allowed to have the DC + AND - in the same conduit... cant even be next to eachother in the cable tray... or is that a Dutch regulations thing only??
Hey mate,
Here the rules for the segregation of AC and DC cables are outlined in Section 528 of our book ( BS7671 ). Here are some key points:
1. **Physical Separation:** It is generally recommended to physically separate AC and DC cables by using separate cable trays, ducts, or enclosures. This helps prevent electromagnetic interference and reduces the risk of safety issues.
2. **Barriers and Distances:** If complete physical separation is not practical, the standard suggests the use of barriers or maintaining specific distances between AC and DC cables to minimize interference.
3. **Insulation and Shielding:** The use of insulation and shielding methods is encouraged to further reduce the risk of electromagnetic interference between AC and DC circuits.
In this scenario as it was a
For reduction of any lightning effect, surge protection, they suggest running them together DC.
I'm from pontefract like 25 mins from batley would have loved to give a helping hand
On the Van theft. Contact crime stoppers. Give details of the van and description of person. Tell them they looked to be selling drugs to young children.
Can I ask why the inverter was installed outside and not inside near the DB?
Client request 👍🏼
thank you. Neat and tidy install by the way 👍@c
Less cable = Less Resistance ❤
We’re UP NORTH today! come on it’s only Donny only just in Yorkshire not exactly that far north. I assume the customer is supplying the cable for the job 😂 your going to need a bigger circuit breaker for that 12kw I recon else you will be coming back “up north again” oh and they are defo roofing bolts only southerners try and tighten them with a screwdriver the rest of us nip them up with a spanner
🤣🤣🤣
A bolt fits into a nut a screw doesnt :)
I'm surprised to see industrial installations not adopting Victron equipment 😮
I thought that, there is no shading issues, so no need for optimisers, unless the extra safety of a SolarEdge system was a requirement.
Hi mate,
You sized the AC supply circuit to inverter at 16aml 3phase. Sizing of AC element of the inverter was 12kw.
Is that 3phase load 12kw total so 4 per phase or 12kw per phase. I’m assuming 4 per phase.
If so is all 3phase loads worked out like this or is the inverter different.
12KW is just over 17A 😳
Pretty sure that inverter should be on a 20A breaker.
To be clear my question was born out of curiosity and the want to understand not to second guess..
With the panels connected I’m sure the calculation was based on output of arrays at an average output taken into account.
The inverter CAN output 12kw doesn’t mean it will. And if the array has been considered properly I’m sure it’s been taken into account it won’t push out that amount exactly
You should use light gauge tray underneath the panels and cable tie all cables to that, not just leave them loose on the roof
They were zipped tied up between so nice and neat, but I like that suggestion, thanks! 🙏🏼
Did you charge them for there OWN cables you used or did they give you them?
Charged them double mate 😉
@@corymac 😂😂😂
I actually caught the guy breaking into my van and held him till the coppers showed up. The first thing they said to me have you hurt him. Then gave him a warning and let him go to say I was pissed is an understatement I wish I’d sorted him out and not called the police
😦😦😦 that’s shocking. Sorry mate
hi mate what is that hard hat with all the attachments?
Milwaukee Bolt!
Saving cable?? You’re suppose to run the -ve right around to prevent creating a loop on the roof. You’ve created two loops!
I’m aware of induction loops, there’s a paper from the universities of Greece - Lightning performance study for photovoltaic systems
I feel whilst it’s a valid consideration, the surface loop areas here as the cables are actually clipped so close together, are very minimal comparatively to a normal conventionally wired system
Amazing video as always! What is that labeling machine called for "crimp labeling"?
That’s the brother printer, I’ll do a vid on it soon :)
Alright looking forward to it! Im an electrian in Sweden and you guys in the UK got some ninfty tools!@@corymac
8:15 revits
That hardhat cory... is that something from the latest transformer movie? 😅 Corytus Prime.
🤣🤣🤣 it doesn’t help I have the worlds 3rd largest head
Can you recommend a commercial solar company who would work in Oxfordshire?
I cover Oxford - ping me an email 📧
Info@oyelectrical.com
Just to keep you right. Doncaster is not the north. It's the midlands or down south from us proper notheners in Newcastle
What was the "giveaway prize" for the 500th comment on the £10,000,000 London apartment Electrics video.
Optimisers on a ginormous flat roof. What ewe doin mun Cory waste of 5 grand nice string inverter be lovely.
The other benefits are mainly safety related, you’re never working on high voltages, and in the scenarios of various DC faults, the switch themselves off and notify me exactly where the problem lies. ( p.s - they’re about £40 each )
Great project, only problem with turning half the panels upside down to save cable is forming an induction loop, especially on a steel sub frame. The lightning would love that. I'm sure it will be fine considering the close panels and aluminium frames. Keep up the co-op projects, we love them.
They’re not upside down 😁👍🏼 . Thanks Tony!
Don’t understand that at all? How can you induct anything with DC 🤷♂️
not only that, you are also creating radio disturbance. at least here if it where to be inspected he would be forced to redo the installation. always run positive and negative along side in DC installations. The first idea was according to regulations. the second big NO NO
Yes agreed, however Cory did get in touch to say they were not upside down, he was just reducing the cable run by centralising the entry point. I must have had too many beers when watching! 🍺
@@corymac Well they should be - see my other comment.
its a screw because it has a thread the full length
Controversial
What boots do u have
Stainless into aluminium is bad unless you don't care about getting the screw out again.
Really is sad the lack of interest the police have. I’m sure it be different if it was one of there own. The lack of law and slap on the back of the hand law doesn’t help neither.
Awsome video agan! I have a question what sorts of security your van has? Only alarm or smt else?
Cory, where are your DC protections mate? 😂
DC isolators? No longer required, and actively discouraged when isolator is built into inverter, not to mention this is solar edge so will drop to 1v per panel in fault / grid outage etc
The 3ph solar edge include internal dc and ac protective devices including SPD.
Also, following recent insurance industry and MCS advisory, superfluous DC isolators should be avoided where already present on the inverter.
Where’s the DC isolators??
The 3ph solar edge include internal DC and AC protective devices, including SPD.
Also, following recent insurance, industry, and MCS advisory, superfluous DC isolators should be avoided where already present on the inverter.
What happens to the strings if the inverter goes faulty? Surely then you have no isolation outside of the inverter? Not ripping your work just curious. 🧐
The optimisers fail to 1v per panel. So in the event of a fault where the inverter failed, the peak voltage on the system would be a grand total of 20 VDC
Fair enough, I think personally I’d have fitted them for good practice. 😝
If you consider it good practice to go against the MCS guidelines, fair play 😎👍🏼
Love the Hard hat link in bio, please
It’s the Milwaukee Bolt helmet! ⛑️
amzn.to/3OMKYgk
use aluminum rivets