spd

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  1. O

    SPD - or not

    Got to 2nd fix an apartment this week, been fire damaged. There are about 30 other apartments on the complex and they have all had their consumer unit changed in the last few months by the housing association, they are RCBO boards, 5 circuits or so in each one, however no SPD's have been fitted...
  2. P

    Main switch SPD pen fault wiring

    Hi all, Customer is buying a Tesla ev and he was thinking of getting a Tesla charger but he said to give him 1 quote without a charger (him buying Tesla charger) and 1 quote with me supplying a charger… The Tesla charger hasn’t got pen fault detection and I’ll need to fit one. The existing CU...
  3. Bluetit

    22Kw EV installation. SPD, RCD etc.

    Hi all, Went to look at installation of a one 3P+N EV charger at a care home the other day which I am quite interested in doing having only previously done SP+N chargers. There is a very empty CU nearby which is useful, but there are no SPDs or RCDs etc. I was looking at using an ICS charger...
  4. newfutile

    Code for no SPD on new build

    I usually code no spd with no code or a C3. However I have been sent to check compliance with BS 7671 on some new builds, there is no SPD present. We usually say the date installed does not make a difference to coding but it does in a way. The same may apply if Arc Fault Detection Device not...
  5. O

    Moving CU away from service head. SPD at the fused switch or CU?

    I'm moving my CU away from the service head. About 8m in 25mm2 SWA. Do I need to put an SPD T2 at the 100a fused switch I'm installing or can I get away with just having one at the new CU location? I'm struggling to find options for the service head location. They a lot more expensive and the...
  6. ferg

    THTC and SPD's

    Probably more of a question for those north of the border. What is everyone doing for Board changes with Total Heating Total Control? I had thought to use a 4 pole SPD in a separate enclosure but Space is a bit limited and adding another 8w board might be a bit tight. Or additional SPD kit in...
  7. R

    Spd supplied of exsisting mcb

    Evening , been to look a job this evening for an additional socket in kitchen . When checking out board an spd has been fitted but the supply is is coming off an 20amp mcb that looks like it is feeding a small radial circuit . Is this a total no no . I think it is and I have explained to...
  8. A

    UK Plazma cutter causing SPD failure??

    I've just had a potentially nasty issue involving a Burnt out, type 2 SPD. My customer has been using a small plasma cutter, I don't have the exact details of the unit to hand, but it does plug in to a standard 13a socket outlet This is a new 100a single phase TT supply to a small commercial...
  9. Brownie91

    Is SPD mandatory for a new circuit?

    Hi all I am after some advice on an installation I have coming up. Its a new TP+N circuit in SWA (13m run clipped direct) for a 22kW Tesla wall charger. I will be installing a Matt:e unit upstream to provide regs compliant RCD protection & Open Pen protection. My main question is do I need...
  10. L

    Spd solar panels

    Hi got a 8 panel solar system on bungalow, changing the board to 18th edition spd board Solar feed is chased into wall so will this need a type B rcbo or can you get away with the type A rcbo. Also reading multiple different things about spds do I need one installing at the solar inverter...
  11. D

    spd in meter box?

    Client needs an SPD fitting but no room in c/u or adjacent. Best bet looks like a parallel connection into the tail blocks in the meter cabinet with an adjacent 'standalone unit' ie with overcurrent protection. Anybody done this? Any reason I shouldn't? Is it ok to use board PEN connection...
  12. P

    new circuit in combustible CU and SPD question

    Hi fellow sparks, I've just started out on my own so I'm spending a lot of my time trying to find out the correct way of doing things of installations I havent done before by going through the regs and such. I've been sent this pic by a potential client showing their CU in the garage. The job...
  13. J

    Solar DC SPD installation advice

    Hi all - relatively new to Solar but I’m looking for opinions on fitting DC SPDs on a TNCS installation. Are we just earthing the SPD from the CU/met or does anyone fit a dedicated rod instead? Thanks
  14. O

    NAPIT EICR forms - observations for SPD and RCD

    I've just started using the NAPIT forms for EIC's and EICR's and they are a bit cumbersome to be fair. Does anyone know which observation is for a lack of an SPD and when the RCD's are type A/C. I know they are a C3 but you need to find it in the bit where you tick "pass all" and it then...
  15. R

    Standalone AFDD board requiring SPD

    Has anyone fitted an SPD to a schneider standalone AFDD DB. Isobar P B Standalone Active distribution board, Acti9, 24 AFDD ways This board only takes AFDDs so there is no where for the SPD MCB to go. There is a DIN rail next to the main switch. The SPD comes with a separate enclosure. Acti 9...
  16. J

    SPD on old db in house with 5 boards all other circuits no protectiob

    Hi, I’m at a job on a grade 2 listed property with 5 different single phase distribution boards, the client wants sockets moved to new locations however the circuit I’m working on has a 32a rcbo but no SPD, all other circuits have to protection either. Any advice? Thanks
  17. P

    Non-selective RCD with SPD downstream

    Hi all, Grateful for your expertise regarding my confusion on the below. Context: French rural domestic property Single phase supply, TT earthing Supplier side RCBO (standard in France, usually next to the meter) - "disjoncteur de branchement" - 500mA, single pole protection, unspecified...
  18. punkin

    Surge Protection Device on old installations

    Hi I always thought installations were safe at the time of instalment etc, the Distribution Boards at my works were installed over ten years back. Our company just had its EICR done. The tester gave us a C2 for a number of DB’s which don’t have Surge Protection Device installed, these DBs with...
  19. D

    NICEIC Certification Scheme SPD on old consumer unit?

    Under amendment 2 of the BS7671, there is now a requirement to fit an SPD as standard. I am due to install a new outdoor socket circuit on an old consumer unit which doesn't have an SPD. Is it ok to do this installation without the SPD?
  20. ValgarGrimal

    BG SPD after RCD acceptable?

    Hello, I was looking at installing a SPD into an existing split load RCD BG consumer unit. In the instructions for the SPD it states that it may be positioned before or after a RCD but I have always been of the idea that the SPD needs to go before the RCD due to the RCD potentially tripping...

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