spd

spd

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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. O

    Does a SPD need a dedicated MCB?

    Does a SPD need a dedicated way? I need an extra way in this unit for a 3 phase car charger As you can see its a small unit with no extra ways, the building is rented and the tenant is adamant that the board is not to be changed as he has been told no major alterations. We have already...
  6. 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...
  7. 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...
  8. 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
  9. 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...
  10. 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
  11. 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...
  12. 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...
  13. 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?
  14. 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...
  15. oscarelectrics

    Does a circuit board with an SPD protect against internal surges?

    Hello! I'm struggling to find an answer to this question online. I'm new here btw - I'm a DIYer with a physics degree Currently when my fridge motor turns off, I get a transient voltage spike on other devices plugged into the same circuit (i.e. an internal surge) If I upgraded my circuit...
  16. P

    Phone line SPD on budget

    Following the tragic tale from @telectrix about lightning damage to phones and modem leading to a serious loss of beer money I decided to take a look at an el-Chepo SPD from Amazon to see if it looks worth considering. This one: https://www.amazon.co.uk/dp/B08FRN2569 When it arrived the box...
  17. ionionascu

    UK Is an SPD required for a loft conversion?

    Hi. We live in an older house and we are doing a loft conversion. We do not have an SPD on the connection to the grid and the builder's electricians insist that we must have one, otherwise he can't sign the certificate, but he doesn't want to give me a reason. We have a few consumer units under...
  18. R

    Do SPDs need RCD protection ?

    Hi there , Currently doing a college project where i need to select protective devices for the contract. I'm now at the point of selecting SPDs and had a couple questions. I have chosen MCG RCBOs for my circuit breakers in this project for all my boards apart from the board supplying...
  19. I

    New SPD Regs for Sub Main

    Now that SPD's must be fitted regardless, how does this stand from a sub-main perspective? Went to look at a job and they want a supply to a pre wired Shepherds hut 50M away with no SPD as it has been sat unconnected for a couple of years. The main incoming is entering an old barn that has a...
  20. I

    SPD on RCD acceptable or not?

    Inspecting and testing a consumer unit as part of my training and have noticed that the circuit breaker for the SPD is on the RCD? I am unsure weather this is acceptable as I haven't come across this configuration and I am pretty new understanding SPDs could one of you more experienced people...

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