Surge protection - a correction! 

I wonder how many people think its called a buzzbar instead of a busbar because of your either not knowing or because of some speech impediment.

It's the mark of a genuine tradesman to admit, he's not infallible. Much respect to you David. 👍🏽

Wonderful, and very impressive to watch/see a professional re-visit/ re-evaluate their decision. Impressive. In my world, I would like to see more 'professionals' rather more interested in recognising their 'potential' faults, and revisiting them.

Really interesting. A man who admits to having made a mistake (even a smallish one like this) is a man one can trust.

This is as good as if not better than any tutorial available on the subject, real world, no BS,and it perhaps wakes up the complacency of the product manufacturers well done

You are in serious danger of proving that there is such a thing as an electrician with integrity and humility. Next, we'll find the Loch Ness Monster isn't a myth either. Great work, love the presentation and I the legendary John Ward too.

By far, the funniest top end spark around. Keep up the great work. Big Fan.

I love the way you show all the small details that novices really need to see. Thank you. Your videos are exceptional. Just pressed the notification bell which i rarely bother with on youtube.

AUSTRALIAN HOOKER KILLED ME 🤣🤣🤣 good job I didnt have a gob full of beer at the time

Mate, I'm not even a sparkie (Just one of those awful DIYers you guys hate!) but your videos absolutely crease me. You remind me a lot of a college lecturer I had (many) years ago - engaging, informative and very funny

The reverend JW has spoken.

Hi David, just wanted to say thanks for the video. Great to see someone sharing their mistakes and then discussing them publicly. Really helpful to learn from. Cheers Nathan

Top video and subject - comments galore on this, with lots of knowledge shared. Your sense of humour is above and beyond, nurtured by gallons of ale I imagine as it should be! Top channel, always look forward to your content, thumbs up.

I use the Wiska ones all the time when I'm installing the lewden boards. So easy to fit and convenient.

Great information as always from you, quick search, and the wylex unit does come in a metal 18th edition version.

Dave your videos are up there man well ahead of the rest, pure quality on another level. It amazes me the other shower of suites out there making videos with ridiculous sub counts and view numbers, it just doesn't make sense anyways ya got my vote man, cheers.

Excellent video thanks. Got an interesting electric shock the other day. Was stripping a 6242y cable with the S.P. M.C.B. Off and the main switch R.C.D. tripped when the neutral and earth conductors touched. Got a shock between line and neutral earth. Never come across it before.Put it down to the R.C.D. breaking line momentarily before neutral.

Thanks for the update and explanation, great content as always!

Top stuff as always David

Fantastic video David. Lots of detail and time spent recording it. 👍

You're a class act David, great video! You literally couldn't make too much of this content. 👍

Informative and entertaining at the same time. Best way to learn in my book. I like that you mentioned about getting comfortable with a product means you forget to shop around for alternatives. I think we are all guilty of getting comfortable. I wondered if the gap between SPD and MCB was to make changing the cartridge easier in the future?

I believe, Main switch enclosures are an exception to the non combustible enclosure regulation because in order to be a 'similar switchgear assembly' to a consumer unit, it must contain one or more type of overload protection, which it doesn't.. That's my understanding of it anyway.

I like the proteus meter isolators with surge protection. They are around the £100 mark and very neat as designed for in-line install. No worries about 2 cables as they have a bespoke connection arrangement for the SPD that keeps the terminals free for the tails.

Thanks Dave a good deal of info to soak in, but as usual beautifully presented !

Good stuff. Thanks for the update and the good guidance. Ive had a few issues with those Wiska glands though, There is nothing to hold it in place, other than a ridgy bit. As you wrestle with the tails they can pop out, and can be very frustrating. So much so, that its urge protection you need more. Stopping you throwing the board through the window. A cable tie round them helps a bit.

Thanks for taking your time out to make this helpful video.

Thanks Dave, another informative video

Top Guy! Very informative upload. Keep up the great work.

Thanks for the update Dave, very informative, there should be a one day course on something like this. Preferably free from the manufacturers or our governing bodies. I have used only type A RCD’s since January, but all customers have declined surge protection.

Another good video keep them coming! I have asked niceic about the double pole plastic isolators they said as long as there is no MCB or fuse in the enclosure it doesn’t have to be non combustible enclosure Also those wiska tails grommets are good but have no real strain relief, so I tend to use them if i need to install the meter tails in 2x2 trunking or if I’m bring the tails through the back of the consumer unit.

Excellent David savoury 👍

Ah sweet, a followup amazing work!

Splendid watch, takes me back to Denmark '97 she was at least an '8' pity I forgot my watch.

Firstly...JW 🙌🏻 😇 Second...dses is Hands down the best sparky tuber ! Knowledgeable and modest! This mini Greg Davies is a great watch. Keep up the good work 👍

I thought your spd installation video was very informative the fact that you've made an add on video to admit that you made a mistake makes me respect you even more. It takes a true professional to admit they've made a mistake and then go out of the way to correct themselves!!!

Probably already comments on but SPDs only cover 10metres into the installation so additional type 3 SPDs might be needed at the extremities of sensitive circuits or equipment. Kirsty (SPD Ltd) also does a nice type 3 unit worth checking if problems persist!

Nice vid and the follow up 😎 was the Lewden 100amp switch as I noticed the Wylex one £££ doesn’t need mcb protection apparently 😮

Much clearer and appreciated 👍

Your vids crack me up at the best of times, but booting up the dses twat signal and getting a response from mega volt himself. 😂 you sir, are comedy genius. Love it. You put a smile a miserable face this morning! 👍

I love that one, gutter sparky house bashing for a living

Nice one David Takes a good man to admit he’s not aware of the full facts but a wise one to return and sort it out, but a braver one after getting grief from the keyboard warriors.😄 I think you deserve a beer or 5 😊 👍

Thank you, very informative.

Great video learn a lot from them still not seen a pouch that can hold a pint of beer yet tho

Sod cone cutters a qmax punch is quicker, neater, doesn't leave horrid swarf everywhere and leaves a clean finish.

any main switch like the one you have with 25mm tails torqued as specified will pull straight out what I learnt in primary school a round shape dosen't fit in a square hole

Wylex REC2MSPD seems to be in a metal case.

Love your non pc style, nice one clarifying your mistake.

Hello david Excellent video and really helpful You are a true electrician

Awesome, good to see a real man in this world that owns up to his mistakes. Must say I have learnt lots from your videos...would be good to see you do a video on DC surge protection for solar power...keep it up!

Thanks I have to fit one of them very helpful

Thanks Dave

I watch lots of these channels, yours comes with humor and a sense of wierdness I relate too :)

Installing a separate mainswitch isolator means the incomer switch on the CU can be removed, with the two slots taken up by the incomer switch on the CU used for two more circuits?

Nice of a manufacture to listen to you and act quickly

Awsome vid. Respect to ya.

We can all learn from each other well done. 👍🏾

The TKS 32 is a beast! Been using them for a while now after stuffing my pockets with them from the Wiska stand at NICEIC live north last year. Top video again! As others have said fair play admitting mistakes (too many sparks out there pretending they’ve never made a mistake and know it all 😂)

Were going to be fitting those wylex 100amp isolators with the surge protection soon at work. we are being sent on a training course by work with the DNO so we can be safely trained to remove a dno fuse and alter consumer side of the meter tails to accommodate the new isolator with spd and seal up the installation afterwards. Good bit of kit but as you say price is ridiculous. I work for the local council they they are slowly starting to pick up on the 18th regs with surge protection

😂😂 your crack is hilarious, and still informative. Keep it up!!

Great video thank you

It takes a great man to stand up and answer his critics, and you are a great man! ( perhaps if Nige had been with you he might have put you right, 🙈😂😂).👍

The Hager type 2 SPD's (I think) have a spare terminal at the bottom labeled up PE (Protective Earth) then the usual fly lead to the earth bar of the CU. What's the spare terminal for?

Another good quality video 👍..

The FuseBox SPD unit. It looks like the mainswitch incomer can be connected top or bottom. That would be very handy in some situations. What do FuseBox say?

But you have the balls to admit you make mistakes and show why it happened. Hats of to you fella. keep up thegood videos.

Just watched this and noticed the SPD is protected by an MCB along with a lot of talk regarding the tail lead lengths. We are concerned here about very short duration surges and was wondering if a study had been done to see how much the "current coil" inductance in the MCB affects the effectiveness of the SPD function as this is effectively an addition length of wire not to mention the inductive effect. The older ones of us will remember the days when we used to fit an inductor inline to the feed of a radio (Audio or CB) in a car to suppress the alternator whine. Also if the instructions say that the second SPD shown can be used on a TT system BEFORE the Type S RCD how can we be sure that an L>E failure (if that's possible L>N>E?) in the SPD isn't going to raise the CPC potential to a dangerous level before any internal protection kicks in given that the TT earth rod may have a significant Ze?

Brilliant very informative

another great video david. would you say in line would be better in the long run than parallel to install the spd unit in your video? I don't seem to come across as a dumass lol. im just trying to learn and rap my head around all of this. thanks.

Hi. Does DSLR camera have any power sugre protection inside the body?

Great video

Can I use that system as a isolator as well within an industrial complex individually metered

The Fuse Box SPD unit. This can be the main incomer mainswitch. If the main CU has only RCBOs, no mcb's (common these days) how would you connect onto the bus bar supplying the RCBOs, with the 25mm cable?

Why uploaded twice?....the best gutter sparky on YT...👍🏻🍺

Take #2 - Now with added brilliant (if redundant) Picture in Picture action!

Whilst keeping the grey cells active with a bit of your wonderful education refresher in this vid I had a thought when watching your diagram in at about 15'56". It shows a spike entering the installation and potentially damaging sensitive electrical equipment and I pondered, which you may know the answer to, how do smart meter manufacturers protect their equipment? They are full of all sorts of sensitive electronic wizardry such as SIM cards and related transmitters as well as LCD screens and anti-tamper electronics and PCBs a plenty - is all that gubbins protectd from transient overvoltage spikes at all I wondered.

Hey Dave - Happy New Ear 👂🏻! Did the SPD finally solve the problem of blowing LED lamps at this client?

Don’t take up politics david …you admitted fallibility…you always make me chuckle …atta boy 👍👍🇬🇧🇬🇧🇬🇧

Great vids David, informative & funny & lets be honest, you need a sense of humour in this game. Just checked the Lewden instructions for type 2 & 3 SPD's & looking at the wiring diagram for each type of earthing arrangement it's not showing an earth from the device when used with TNC-S. Obviously it's a PEN arrangement so wondered what your thoughts are on this. Can the earth wire be omitted or is this a printing error perhaps?

good on you mate

🍻 A good man admits when They don't get right. Continue with the great content.👌

Why are you pulling main fuses? I've had one fall to bits and break, good luck finding a replacement. I take the tails out of the meter on the customers side. Either way you've got to cut the anti tamper wire.

AGAIN IN ADDITION: Apart from some most useful informatio, guidance and advice (THANK YOU DAVID) - I must however comment (with much humorous self-satisfaction) your somewhat surreptitious insertions, (every now and then - completely under the wire, as it would appear) full range of uncensored expletives >> which NOT ONLY adequately emphasizes your getting PISSED OFFwith some entity >>> But TOTALLY CRACKS ME UP, (from all the way here in CAPE TOWN). Subscribed, liked and shared!! (THANK YOU DAVID!!) ♥️👍😘

Well done for admitting your mistakes. Our industry has far too much bravado and people worried about loosing face, nobody can know everything in this trade ( well maybe John Ward?) Everyday is a chance to learn something new.

David have a look at the terminals on ABB miniature circuit breaker range...ask yourself why these knobs who create all these rules and regs ...pages and pages of the drivel ...dont enforce a rule which would force all circuit breaker manufacturers ...to copy the ABB terminals reducing loose connection issues...you can clip a din rail or smaller wire in the back and the big wire in the front...pity ABB costs a case of beers and some.

great videos david keep them coming please. 2 things I want to ask and am not having a go and I have never done either before and yes could just ring nappit guys as I am a registered electrician but I know they can even be wrong sometimes and quite often look at things in different ways. 1. I was under the impression that a 100 amp isolator could be in insulated housing I know you quote the reg but are you 100 % sure that's the case if it is just an isolator. this is just for my own knowledge and have never installed one. 2. again as far as I understood consumer units, isolators etc. installed in garages without living space above didn't have to be non combustible I guess im wrong could you confirm it please. again is just for my own knowledge and would never do it anyway I install non combustible in garages without living space above all the time its just for my own knowledge.

Honestly, and well explained, cheers Dave. Don't put yourself down though...def not a "gutter spark" :-D I preferred that 2nd SPD unit you showed, seems better made and cheaper. I'm not totally sold on the SPD thing though, until We see 100% proof in the future these things (and AFDD) actually ARE reducing faults, and saving lives, I'm on the fence. money money money...spin spin spin... Great video Dave.

Isn't that plastic glass fibre reinforced so will probably take some effort to melt in a fire ? Maybe get Mr ward to set alight to one?

I almost died laughing and rolling on the floor!!! I hope I did not misunderstood. Perhaps is that I am in Ohio, MIDWEST USA, and yours is an accent I am certainly not used to, but did you say "like an Australian hooker, upside down and with the flaps hanging"? HAHAHA!! I was laughing uncontrollably, I had to pause and wait for my blood pressure to settle before watching the rest, but pray tell me" Is that what you said? And, what does it mean exactly? I have three possible scenarios/pictures in my mind but I have to admit, I am an old timer and have been around A LOT and I have never seen such a sight! I need a visual since is too late to travel and see it myself, LOL

That's interesting, I thought the whole point of those removable SPDs was so that anyone could replace them if they fail! Interesting to learn that isn't the case.

i Read through the comments but did not see any suggestion that lewden should move the earth bar to the bottom and so make the leads as short as possible, sorry if some one else has already said this

So the Fuse Box SPD box is better than the Lewden, as it can safely be used as the main incomer switch.

On the Lewden, if the SPD fails, will the local 32A mcb trip? I cannot see what use it is as an overcurrent device in this situation. Is the local 32A mcb just for working on the SPD without switching off the whole installation?

Great vid 😇

Well done it must have taken a lot to own up to that mistake

You also cracked that main breaker at the bottom. It’s cracked

When we stop learning we stop growing

i couldn't find that comment here aready, sorry if it's a repeated thing... but is the space between spd and mcb maybe to allow spd to blow up or melt and it won't take it's own protection mcb with it...? with all that, i would actually prefer if surge protection disconnects the source and fails safe/short for it's load... that'll make customer angry i think then there are spd's with monitoring, some type 3 ones beep, type 2 ones can have "failed" output (nothing meant for humble home panel, though)

Cheers for a shoutout to all the high af electricians 🎩🇲🇦

Fruity hangover now overcome! I now wonder whether the prescribed distances and/or CSA relationship from HENLEY (Splice) from Origin...and relevance of subsequent 'Tail Distances' to downstream DB/CU's go one way or the other to either losing/gaining 'SPD' protection from EITHER incoming out internal transients dependant on position Away from Origin OR Away from DB (ie final CCTs requiring protection). One last point, I believe that the 'catastrophic' Failure of an SPD mentioned by @PaulMeenan of @e5group might have some validity when you mention the reliance of melting of a solder point for some sort of ADS to components 🤔