SPD INSTALLATION IN A CONSUMER UNIT - HOW TO and THE BASICS

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  • Опубликовано: 30 окт 2024

Комментарии • 190

  • @mossmm73
    @mossmm73 Год назад +2

    What an excellent and well presented video
    A great help for revision as well as to update our knowledge base
    Very clear easy to understand and fully explained
    Thank you

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Glad it was helpful and thank you for watching. Appreciated. Dave.

  • @SLimbu-nf9or
    @SLimbu-nf9or 2 года назад +6

    Thanks David. What an excellent video in simple word and simple way. It is more clear than courses we attended.
    Please produce more video regarding AFDD installation also.
    Thank you so much.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      AFDD is on the list to be done. Thanks for watching and spread the word. Dave.

  • @StreamFeeds
    @StreamFeeds 2 года назад +4

    Thanks David once again, recently installed a summer house with your previous video. Helped so much. I’m level 2 qualified so just an improver but got my work signed off by BA. Plus another fully qualified spark for your video. It’s really helped so much and you’re the don of the trade mate.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +7

      Thank you so much.
      You are never JUST an improver or JUST an electrician. You have a skill at whatever level you are at and every day you are adding to that skill. Keep learning, its a great trade and its taken me all around the world on some really interesting contracts.
      Good luck. Dave.

    • @kingofthetrowel1725
      @kingofthetrowel1725 2 года назад

      @StreamFeeds can I ask was it fairly easy to get building control to come out and inspect and sign off? What’s the procedure? I’m wanting to change my consumer unit and I’m currently re training as a spark, so would be brilliant if I could do it and get it checked etc also do building control do minor works sign offs for say if a wanted to add spot lights from a pendant and add extra light switches etc and also cracking video again dave many thanks🙌🏻🙌🏻

    • @StreamFeeds
      @StreamFeeds 2 года назад +1

      @@kingofthetrowel1725 I wouldn’t get BC involved if you can help it. Do the work and get a fully qualified spark to sign off for you. It cost me £500 to get stuff signed off. I found someone just after I had my first encounter with BC and would never go back to BC again now… lol

    • @TheBullet2888
      @TheBullet2888 Год назад

      £500 to get work signed off!!!! Wowza

  • @stevanstacey5497
    @stevanstacey5497 Год назад +2

    Pure nerdspeak! Clear as mud! Thanks

  • @JohnJennings-y4y
    @JohnJennings-y4y Год назад

    David I've got it. The brown line at 8:20 from main switch out live only appears to go to SPD 'E' but in practice goes "as you say" from the main switch live out up behind the SPD (not connected) directly to the live in of RCD 1 as narrated. Many thanks for an excellent demonstration.

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      You got it, I've just replied with the same info. Thanks for the support, appreciated. Dave.

  • @Almightyrastus
    @Almightyrastus Год назад +2

    I will add that it is always best practice to install the SPD on the first outgoing way of the board as this keeps the connecting leads (and internal busbars within the panel) as short as possible. The voltage that is let through by the SPD depends on the design of the SPD itself plus any voltage dropped as a result of inductive loading on the connecting leads, longer leads will mean a higher let through voltage. Also, all leads connected to the SPD should be bound for as much of their shared length as possible in order to mitigate electrical field generation around the lines. Also it is a bit of an oversimplification to call an SPD a !type 1 device" or a "type 2 device", to start with most have combined ratings these days and all SPDs will have all 3 type ratings, they will just be different ratings depending on design and installation point intent.

  • @sinasoleimanian4092
    @sinasoleimanian4092 Год назад

    thank you so much for your explanation in so many videos you explain things so clearly and to the point you have got me out of a lot of trouble when I was stuck and didn't know the subject very well! TOP MAN! Thank you once again!

  • @vanhelsing3225
    @vanhelsing3225 2 месяца назад

    A very good presentation... Thanks Sir for sharing this.

  • @SocratisPapacosta
    @SocratisPapacosta Год назад

    excellent explanation on the spd Thank you

  • @malcolmking7926
    @malcolmking7926 2 года назад +1

    Thanks David - You are a good teacher - easy to understand, concise and clear with an interesting voice (to someone from London!) generous with sharing your knowledge too.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thanks Malcolm. I can never disguise my voice. Thanks for watching, really appreciated. Dave.

  • @anndicker8371
    @anndicker8371 2 месяца назад

    Hi very concise. ---Your comment above is now from 2 years ago. -----Are these SPD still optionable. --- Also If you connect the N out rom the Main Switch to the Main N bar. Then you will take both the main N functions from the bar, and the wiring will be less cluttered. That is what the N bars are for-- multiple N outputs. Rather that jamming two N wires in to the Main switch N terminal. Tony

  • @radhialiue1974
    @radhialiue1974 2 года назад

    Thanks again for your hard work so I appreciate every word you say in your lactuer

  • @meninpapin
    @meninpapin 2 года назад

    Very good & easy explanation. Thank you

  • @usmanseljuq2215
    @usmanseljuq2215 Год назад

    Thanks David, its really appreciable, I never had such kind of a learning experience before. Awesome videos with great explanation....

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Glad it was helpful Usman, appreciate your comments. Lots more to come. Dave.

  • @ThePlantsman
    @ThePlantsman 2 года назад

    Thank you very much for posting this illustrative video.

  • @abdoaiman
    @abdoaiman Год назад

    Many thanks dave for the hard work

  • @vindexelectrical7068
    @vindexelectrical7068 Год назад

    Great video. Had a chance to catch up on your content while I’m in hospital 👍
    As always, very informative. Keep up the great work.

    • @learnelectrics4402
      @learnelectrics4402  Год назад +1

      Thanks for the feedback. Sorry to hear about the hospital. Get well soon buddy, lots more videos to come. Dave.

  • @michaelwaheeb4998
    @michaelwaheeb4998 2 года назад +1

    Great job dave..
    May I inform you about new important topics you can make explanation videos for
    - ups using, concept rating sizing
    - generators
    -capacitor banks
    -electrical rooms design
    - bus bars
    -voltage drop and short circuit
    - harmonics
    - light calcs
    Go ahead and great job man

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thank you Michael. We have a video on lighting calcs and distributed loads coming along soon. Thanks for watching.

  • @dougvee4744
    @dougvee4744 2 года назад

    Excellent explanation. I see SPDs and MCBs installed upstream of the switch.

  • @aadedeelectric
    @aadedeelectric 2 года назад

    Thank you for sharing about spd..

  • @nic_the_aged_woodworker
    @nic_the_aged_woodworker 2 года назад +1

    Thanks for a very informative and useful video

  • @munafmufc01
    @munafmufc01 Год назад

    Brilliant video. Thanks David. Great tutorial well explained.

  • @Gandalf4137
    @Gandalf4137 4 дня назад

    Why does the mcb need to be 32A or smaller? I'm a little co fused because some spds call for larger mcbs. Schneider Max9 being one of them.
    Thank you

  • @bonaminhrasmey42
    @bonaminhrasmey42 Год назад

    ❤thanks for sharing your video

  • @Charlie9093
    @Charlie9093 2 месяца назад

    Thanks loads

  • @tonyp2878
    @tonyp2878 2 года назад

    Thank you Dave!

  • @sambathbunkh
    @sambathbunkh Год назад

    Very good video and explanation ❤

  • @Everythings0714
    @Everythings0714 4 месяца назад

    Fantastic videos

  • @abdirizakhassan1073
    @abdirizakhassan1073 2 года назад

    Thanks Dave .
    well explanation

  • @raghavendrab.s3237
    @raghavendrab.s3237 2 года назад

    VERY INFORMATIVE & CLEAR

  • @dominikusakhadi3598
    @dominikusakhadi3598 2 года назад

    Great explanation, thank you

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Glad it was helpful Dominikus. Thanks for watching, lots more to come.

  • @willmurphy6663
    @willmurphy6663 Год назад

    Thankyou, incredibly clear

  • @francoistoumany3841
    @francoistoumany3841 2 года назад +2

    Very timely video. Well explained as always David.
    Thanks for your time and efforts with this, always appreciated!

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thank you Francois, thanks for watching. Lots more to come. Dave.

  • @lpmuzza3274
    @lpmuzza3274 9 месяцев назад

    Your channels really good

  • @davemo1571
    @davemo1571 Год назад

    Great video but it’s mainly the cheaper suppliers of SPD’s that require an MCB back up some don’t and free up an additional way on the board.

  • @three-phase562
    @three-phase562 2 года назад

    Nice explanatory video. Given the drop in price of SPDs since they first came onto the market we are seeing more of them installed now by default.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thanks. I think it will not be long before Building Regs say that all new builds, board changes and refurbs must have SPDs as standard. Dave.

  • @rogerbettaney9412
    @rogerbettaney9412 2 года назад +1

    Hi, good video and a great explanation but a 230 volt ac system has a maximum instantaneous voltage to earth or neutral of around 325volts, ie the peak of the 230 volt supply is 1.414 x 230. So the SPD should not trigger until the instantaneous voltage exceeds 325 volts.

  • @callum07uk
    @callum07uk Год назад

    Thanks for the video. Can I loop out of the supply side of the last DP RCD in my CU with 6mm or 10mm T&E to a 32A MCB then SPD both in separate enclosure. My worry was the cable size would be less than the pre-wired tails in the CU.

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Have a look at this video on cable sizing. The important thing is will the cable carry the prospective fault current at that point in the circuit, especially if the cables are going to enclosures some distance from the CU.
      ruclips.net/video/3_D65-32xp8/видео.html

  • @ted5hhh1241
    @ted5hhh1241 2 года назад +2

    Good video but you missed the information about how long the cables should be .

  • @pps.sks1985
    @pps.sks1985 Год назад

    What type of SPD should be installed in the main electrical cabinet of a residential home?

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      In the Dist bd is usually a type 2. Thanks for watching, appreciated, Dave.

    • @pps.sks1985
      @pps.sks1985 Год назад

      @@learnelectrics4402 thank you very much

  • @ramphago1240
    @ramphago1240 2 года назад

    very helpful

  • @JohnJennings-y4y
    @JohnJennings-y4y Год назад

    David excellent Video is there an error at 8:20 "Line inputs. Your graphic shows brown line input from main switch to 'E' of the SPD your narrative says to connect brown from the line of SPD 1 line in to RCD 1 line in and then loop to RCD 2. It does not mention the shown brown line out from the main switch live out to the @e@ terminal of the SPD! Is the graphic correct as shown with live from main switch to 'E' of the SPD?

    • @learnelectrics4402
      @learnelectrics4402  Год назад +1

      I think that's the way its drawn, E goes to the earth terminal and the brown goes behind the Devices to the line terminals. Thanks for watching. Dave.

  • @ef7480
    @ef7480 2 года назад

    Great info on all of these vids.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Glad you like them, thanks for the support. Lots more to come. Dave.

  • @PJANGELES30
    @PJANGELES30 Год назад

    good demo and well paced

  • @stefangeanta
    @stefangeanta 2 года назад +1

    Bravo!

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Thanks Stefan. Glad you enjoyed it, lots more to come. Dave.

  • @kevinjones8516
    @kevinjones8516 Год назад

    Hi David
    Good informative video however I think it’s not suitable for TT installations and T1 SPDS
    on a TT installation a T1 device has to be located as close to origin also the SPD would usually be installed prior to RCD as operation of RCD would prevent functionality of SPD. In addition to that the SPD will also have to be fitted with larger tails and cpc conductors and an OCPD usually rated at 63A or greater depending on manufacturer requirements.
    I think it would benefit views you cover TT requirements in greater detail or at least inform them that they require greater consideration.

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Good comments. Thanks for the input and thanks for watching. Dave.

  • @pradeepmahendrasemage4043
    @pradeepmahendrasemage4043 2 года назад

    Thanks.

  • @lukwal3514
    @lukwal3514 9 месяцев назад

    Beautiful

  • @RED4Flame
    @RED4Flame Год назад

    Hello David from Bosnia, I have two questions
    1. Do I need MCB 32A type B or type C for the SPD?
    2. Is this good = from Main Switch to MCB 32A type B then to SPD and from SPD to RCD, (MCB is protecting all from Main S.)
    what do you think about this?

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      I would use a type B to protect the MCB. The SPD should be immediately before the main switch or immediately after it. Some pre-loaded consumer units come with the SPD before the main switch. The RCD current is NOT going through the SPD, all the SPD is doing is monitoring the voltage on the bus bar for spikes.
      Take a look at this other video of ours on SPDs, it will explain better.
      Use this link ...
      ruclips.net/video/CCZJ0CPOR2U/видео.html

  • @BadraVeeraBadra
    @BadraVeeraBadra 7 месяцев назад

    With not Neutral IN of two RCDs from “Main Netral Bar”?
    Or connect two RCDs with Neutral from SPD similar to how LINE connects from SPD to RCDs?

    • @learnelectrics4402
      @learnelectrics4402  6 месяцев назад

      Two RCDs needs two neutrals. Keep the neutral and line to each RCD separate otherwise you will get unwanted tripping.

  • @raimondtracar8703
    @raimondtracar8703 10 месяцев назад

    Is the surge module the vaiestor?

    • @learnelectrics4402
      @learnelectrics4402  10 месяцев назад +1

      The varistor part is contained inside the SPD and this will trigger when a certain size surge is detected.

  • @dennisfowler7873
    @dennisfowler7873 2 года назад

    Hi Dave…if an installation is wired with a TNSC earthing arrangement…should there always be an reference to direct earth from the main earthing terminal eg earth rod or bonding because if there was a surge on the neutral due to lighting strike from somewhere….with a TNCS earthing the surge protector will be shunting that voltage back into the same conductor that the surge is on…..so with all this these water and gas being replace with plastic…is there a requirement in the REGS for us to make sure there is direct refer to earth in my installation…as we know voltage always wants to go to earth

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Dennis, TNCS is earthed, back at the transformer. Hope this helps. Dave.

  • @grmo1875
    @grmo1875 Год назад

    I was investigating fitting a Lewden Type 2 SPD kit and they come with a 40A MCB as standard. This seems to conflict with the advice in the video to fit an MCB that is 32A max. The data sheet indicates the cable sizes are 2.5mm/4mm as described in the video. Surely a manufacturer wouldn’t knowingly sell a kit that didn’t satisfy the regs? Not trying to sling mud at anyone, just seeking clarification and reasoning. Any thoughts …

    • @learnelectrics4402
      @learnelectrics4402  Год назад +1

      Go with the manufacturer's recommendations always. You need an MCB that won't keep tripping every time a big spike arrives, but not too big that it never trips, Conversely, you don't want a 6A breaker that is always tripping.
      32A and 40A are in the same ball park. Thanks for the input. dave.

  • @bwlchynhoreb
    @bwlchynhoreb Год назад

    Is the whole installation now protected by only a 32amp mcb?

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      No its not, the 32A breaker is just protecting the SPD. None of the current for the other devices goes through the SPD, it just watches what goes across the top of it. Take a look at this other video on SPDs, it will explain exactly your question. Thanks for watching. Dave. Here's the link...
      ruclips.net/video/CCZJ0CPOR2U/видео.html

  • @ibrahimabdullah4430
    @ibrahimabdullah4430 Год назад

    Sorry in advance if its a stupid question - will the MCB powering SPD not get overloaded as everything else is powered through the SPD line terminal?
    It looks to me as it'll keep tripping on overload, is there something missing in the diagram? Or m I missing smth obvious.

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      The SPD just looks at what passes across its terminals. The current for all the circuits does not go through the SPD, just passes across the top. Only when a spike of over-voltage arrives does the SPD suck that over-voltage through itself. The rest of the time it just watches. Think of a conveyor belt with small boxes on it. As long as the boxes are small, we let them go past us. If a big box comes, we take it off the conveyor belt and put it behind us.
      The mcb protects the SPD from prolonged over-voltages. Hope this helps.

    • @MustangGlos
      @MustangGlos Год назад

      I agree, it looks like the entire CU current will flow through the MCB

  • @seandempsey7351
    @seandempsey7351 2 года назад

    There is a lot of controversy over SPDs and AFDDs mainly the cost of the them and weather they are really needed in domestic installations?
    I have asked many times a simple question but no one has come back with an answer or area unwilling to answer because the question throws a spanner in the works ?
    So I try again , if lightning hits the main transformer at the end of your road or the overhead power lines , why is it a problem ? Ok you could loose the power in the hole street but how would it effect our house? Surely the short lived surge will only get as far as the DNO cutout witch will blow ? And the surge can’t go any further,
    Therefore an SPD is a pointless waste of money? Personally I think it should be a personal choice if a home owner want it or not, to make them mandatory is the wrong thing to do how many people can afford to have them not a lot.
    Fantastic video very interesting and informative as always Dave 👍👍👍👍❤️

    • @TheWebstaff
      @TheWebstaff 2 года назад

      Yeah it's an interesting question.
      Makes me wonder how many surge protected devices basically do this in / on circuit?
      e.g. you could make a plug in device that does this at a socket and I wonder if those devices are actually doing this when they are plugged in.
      And as you say justification wise, I've seen two times when power spikes have clearly killed equipment and both we're direct lightning strikes to the building.
      Outside of this is would be very hard to prove one way or another if this device is actually doing anything.
      Anything I need protecting is on the other side of a UPS or at minimum a SPD gang or plug.

    • @TheWebstaff
      @TheWebstaff 2 года назад +1

      So yeah double checked, most SPD power bars / extension leads do this at the plug so if you have one of those plugged in anywhere guess what you already have :)
      So if you want more protection just plug in more power bars.. ;D

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Yes, lots of interesting discussion. The day will come when Building Regs say they must be fitted. I know the insurance companies are interested because they are insuring tech equipment and SPDs will reduce their liability. Good point Sean.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Lots of discussion Dave. No-one has a definitive answer but I feel they will be compulsory on new builds and board changes in the coming years. Thanks for the input. Dave.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thanks Dave.

  • @tosonselectrical
    @tosonselectrical 2 года назад

    Helpful, thanks...

  • @alanmarriott9216
    @alanmarriott9216 2 года назад

    Hi. Sorry for stupid question. But if you r board has an 80a supply for example and your connecting rcd 1 and 2 from top of SPD which goes through the 32a mcb which you’ve shown you’ve limited your board supply to just 32a? That correct?

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      No. The SPD is only monitoring what goes across the top of it. The current to the RCDs and the rest of the board does not go through the spd. The SPD is effectively monitoring the bus bar. The 32A mcb is a recommendation to limit any spike current to 32A to protect the spd. Hope this helps.

    • @alanmarriott9216
      @alanmarriott9216 2 года назад +3

      @@learnelectrics4402 Hi. Only reason is if you look at your picture of the DB you have a copper bus bar link from main switch into the bottom of the 32a mcb,then from the top of the 32a mcb which then goes across to the SPD and also the RCDs. So surely if it’s all through that 32a mcb that’s maximum your board will be pulling. I maybe be stupid

    • @AlizeeDanceForMe
      @AlizeeDanceForMe Год назад

      In the diagram at 8.20 I first thought that the whole installation was running through that 32A SPD breaker, but if you look at the live on the main switch, a brown cable comes from that, to the live on the SPD and to the two RCDs. So the SPD is in parallel with the the main switch and both RCDs.

  • @dobplastering8410
    @dobplastering8410 2 года назад

    Great video thank you! I've been told you can't fit an SPD on a TT system please can you explain why if it's true and if not do you have to do anything different for a TT system . Thank you

    • @jonathanfox1105
      @jonathanfox1105 2 года назад +1

      I’m not an electrician so take this with a grain of salt but: With TT systems and SPDs I believe you have the same problem that you always have with TT, i.e. there won’t be enough current flowing to trip circuit breakers in the event of live to earth faults. On TT I believe you can use a CT2 SPD without any further protection than the circuit breaker and that you can use a CT1 SPD if and only if there’s an RCD before it. If you are installing an SPD yourself make sure that you keep the leads very short ;-)

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Thanks for the question. A TT system has a high resistance path and will not respond to surges the same as a TN system. See Jonathan's reply below.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thanks again Johnathan. Great response. Dave.

    • @dobplastering8410
      @dobplastering8410 2 года назад

      @@jonathanfox1105 thank you . I'm new to this and wasn't sure what's best practice.

  • @shiamjad
    @shiamjad Год назад

    what is the differnce between type 1 snd type 2 SDPs?

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Several differences Imran. the amount of current and voltage they can handle. Type 1 are generally for protection outside the property where a lightning conductor is installed. Type 2 are usually installed at the installation source where it comes in to the property and where there is no lightning protection.

  • @johnakingston
    @johnakingston 2 года назад

    If the consumer unit is fitted with RCBOs is the installation the same?

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Yes. The RCBO will directly replace each MCB and negate the need for RCDs.

  • @usscork
    @usscork 2 года назад

    Thanks David...Good video. Quick question... If the MCB protecting the SPD from a longer duration surge, was to trip, would this not just send the Surge back into the installation?
    I would have thought it better to let the SPD take all the surge and I wouldn't have thought the MCB was a good idea???

    • @jonathanfox1105
      @jonathanfox1105 2 года назад +1

      All devices can fail over time and if the SPD fails short circuit then you are risking fire without the circuit breaker (or taking out the main cut out fuse).

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Thanks John, see Jonathan's reply below. Thanks for watching. Dave.

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Brilliant answer Jonathan, thanks for the support. Dave.

    • @smd-tech
      @smd-tech 2 года назад

      From repairing power supplies from africa where there is a lot of lightning, MOVs frequently fail short circuit. If there is no overcurrent protection this could end badly.

  • @JAG_UAR
    @JAG_UAR 2 года назад

    Hello sir, if my appliance is working 240v max then if i install 275uc type1+2 spd.... Isit better than other spd thatwith type1+2 330uc specs spd?

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Arun, you would need to compare the data sheets for both SPDs and decide which one suited your particular needs best. Thanks for watching. Dave.

  • @Edgariux111
    @Edgariux111 Год назад

    A little confused as to why the position of the spd doesn't seem to matter, but why do most innstallers and manufacturers now place the spds on the board before the main switch

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      There are always new methods. As long as the SPD is installed where it can monitor effectively it will do its job. Thanks for watching. Dave.

  • @GamezGh1
    @GamezGh1 Год назад

    Can we connect output of type 2 spd to neutral instead of earth?

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      There isn't an output on an SPD. Just Line, Neutral and Earth, which should go to the appropriate terminals. Hope this helps.

    • @GamezGh1
      @GamezGh1 Год назад

      @@learnelectrics4402 Hello thank you for the response. By "output" I mean the line that will connect to earth bar

  • @Bob22.09
    @Bob22.09 6 месяцев назад

    Why Neuteral 1 , 2 and the main are not connected together?

    • @learnelectrics4402
      @learnelectrics4402  6 месяцев назад

      The RCDs function by having separate neutral bars. Hope this helps. Dave.

  • @levrone0075
    @levrone0075 2 года назад

    According to this all the power is going through the spd?

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      No, not at all. The SPD is in parallel with the other devices.

  • @DJRustla
    @DJRustla 2 года назад

    Maybe I`m not quite getting this, but looks to me like the diagram shows the entire installation being supplied through the 1 32A MCB and the SPD? That can`t be right

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      The mcb is just protecting the spd from overcurrent. Thanks for watching.

  • @ELECTRICLIFE4U
    @ELECTRICLIFE4U 2 года назад

    👍👍👍

  • @SocratisPapacosta
    @SocratisPapacosta Год назад

    On the final stage of the connections the live appears to connect to the Earth of the SPD

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      Just the route the earth is taking behind the components. Great that you are studying it, appreciated. Thanks for watching, Dave.

  • @anndicker8371
    @anndicker8371 2 месяца назад

    PS---- unless the N bars are Micky Mouse and not rated for full load current of the board.

  • @LeeDunlin
    @LeeDunlin 2 года назад

    Great little video BUT slight problem with your connections! You show the live feeds to your RCD's taken from the supply to the SPD, this is incorrect as the whole installation would be fed via the 32A MCB feeding the SPD! The RCD's need to be fed from the main switch not the SPD....

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      The 32A mcb is aN IET recommendation to protect the SPD as in theory it could take an unlimited amount of current until it pops. Hope this helps.

    • @LeeDunlin
      @LeeDunlin 2 года назад

      @@learnelectrics4402 No you miss my point, I know you need a 32A MCB to feed the SPD but on YOUR diagram see 8:20, you show the feed to the 2 x RCD's as coming out of the live in to the SPD which in turn has been fed from the 32A MCB, this is incorrect as the whole installation is fed now via the 32A. The RCD's need to be fed before the SPD MCB. :)

  • @joshb9657
    @joshb9657 2 года назад

    Surprised they haven't got a check 6 monthly spd sticker in the new regs

    • @learnelectrics4402
      @learnelectrics4402  2 года назад

      Don't make them bring out another Amendment - please. Thanks for watching, appreciated, Dave.

  • @tonylockwood6370
    @tonylockwood6370 Год назад

    In the video power drawing if the 32amp mcb trips no power to rcds
    There fore the whole installation is running off a 32 amp breaker
    Or am I blind

    • @learnelectrics4402
      @learnelectrics4402  Год назад +1

      The 32A breaker is there to protect the SPD only in case of overload to the SPD. The house current does NOT pass through that breaker, the voltage and current to all the circuits in the house just goes across the top of it so that the SPD can monitor the house electricity for spikes. Hope this helps. Dave.

    • @tonylockwood6370
      @tonylockwood6370 Год назад +1

      @learnelectrics4402 check your drawing

    • @mikedowney6777
      @mikedowney6777 Год назад +1

      @@tonylockwood6370 no, he’s done it right - but if you pause video and look at it, it can appear wrong!
      both main RCD’s are supplied by the last cable installed - the brown conductor that comes out of the bottom of the main switch and runs up BEHIND the SPD - just unfortunate that if you pause it appears to connect in with the SPD ‘L’ connection (red loop at top)

    • @handsomedahn7614
      @handsomedahn7614 Год назад

      @@mikedowney6777
      You are right.

    • @handsomedahn7614
      @handsomedahn7614 Год назад

      @@learnelectrics4402 thanks for the clear way it was explained

  • @martinriley106
    @martinriley106 2 месяца назад

    Never understood the need for surge protection really. I’ve never had anything damaged by lightning in all my life, yet now it’s become mandatory for new installations.
    The problem is, once you do get a lightning strike you have to replace the SPD for a new one??? What a way to make money eh?
    Nonsense!

  • @kevinhanks6546
    @kevinhanks6546 2 года назад

    Hi Dave, as always, thank you very much for your work. Do you recommend an online course for the C&G 2382-18 (in conjunction with your videos) and then sitting an 'in-person' exam post-learning? And if so, can you recommend any specific website for this? Many thanks,

    • @learnelectrics4402
      @learnelectrics4402  2 года назад +1

      Thanks for the feedback Kevin. Everyone learns differently. Some do well with on-line and others learn more with face to face. NAPIT and NICEIC do some good courses. If you go to an independent trainer, always visit and check them out BEFORE parting with any cash. Most are good trainers but there are some horror stories out there. And visit at least three centres before deciding. Its worth it to get the right training centre for you.

  • @Airbag888
    @Airbag888 2 месяца назад

    Very very helpful but please use a more modern AI voice that's more natural :)

  • @lg3053
    @lg3053 3 месяца назад

    Terrible drawing. You should have used a more common breaker box style drawing or an actual breaker box with real devices and explain with all the initials mean. If this is supposed for basics you've done a poor job explaining.

  • @unlimitedfun702
    @unlimitedfun702 29 дней назад

    I bought spd which Uc Volt 385V.
    Is it ok??

    • @learnelectrics4402
      @learnelectrics4402  16 дней назад

      This is the maximum continuous voltage that the SPD will give protection for, so at 240 volts or there abouts, you are fine.

    • @unlimitedfun702
      @unlimitedfun702 16 дней назад

      @@learnelectrics4402 unfortunately i bought 385v😭😭😭😭

  • @giubaca
    @giubaca Год назад

    What's the point of mcb for that spd??.. if that trips all protection is gone

    • @learnelectrics4402
      @learnelectrics4402  Год назад

      The mcb protects the spd. If that trips the spd does not catch fire but all the circuits are still enabled and protected by their own mcb.
      Have a look at this video, it answers your question perfectly.
      ruclips.net/video/CCZJ0CPOR2U/видео.html

    • @giubaca
      @giubaca Год назад +1

      @@learnelectrics4402 well there are out there SPDs which doesn't need protection, i.e. they are rated for 100A already. Installing an MCB in front of an SPD will render that SPD installation pretty much useless in the event of a surge especially when the surge protection is needed the most.
      So yeah don't use the brand which needs overcurrent protection