surge

  1. Calebp43

    Surge protection on wind turbines

    I have recently been asked to surge protect a family friends wind turbine. It's about 30-40foot high and it's something I've never done before. Any ideas? I have done a lot of looking into it and it looks like a much bigger job than I originally thought. I've read that it will most likely need...
  2. S

    How much surge in voltage should be in the surge protector? (Min and Max range)

    Hello, I live in the Middle East. I have between 220V to 230V. I bought surge protectors for AC and other appliances such as PC and TV. The upper limit voltage in surge protectors is 255V and the lower is 170V. How does the manufacturer calculate the normal voltage? (for my surge protector is...
  3. V

    surge protection for heating system

    last week, houses in the road had a power cut one evening, although we hadn't at that stage...then, in bed near midnight, we were dozing, then heard a loud pop in the hall....got up and smelt a very strong electrical burning smell (we were also then without power), it was coming from the...
  4. Subpra

    Need help about Surge Protective Device

    Recently I have installed Type 2 Surge Protective Device SPD 20 to 40kA, Type1+2, Phase + Neutral + Earth (2 Pole 275 Volt AC) (Uc-275VAC, In-20KA, Imax-40KA, Up ≤ 1.5 KV) after 64A DP MCB at home MDB. The home lode is around 1.75KW. We have 220 VAC main line here. At the evening of 3rd day...
  5. U

    PAT FAIL HELP - 19" Rack Mounted Surge Protected Power Strip

    Hi All, My colleague and I are currently doing PAT/ISITEE Testing, and we've hit a snag with a bit of equipment - we've got 19" Racks for our equipment that each have a Surge Protected Extension Lead mounted into them, they're Class I, and we test them on 250V. Earth Cont. and IEC Cont. are...
  6. SJD

    Surge protection devices for PME supplies?

    I've been installing Type 2 SPDs in consumer units for several years now, and they always come as a pair, connected across L & E, and across N & E. Typically they plug into a holder, sometimes as two separate SPDs (e.g. Hager, with separate E connections), more often now as one combined SPD...
    • SJD
    • Thread
    • devices pme protection supplies surge surge protection
    • Replies: 2
    • Forum: UK Electrical Forum
  7. saucyjack

    Surge Protective Devices

    Hi guys, could someone help with the following please? The scenario is: Domestic property supplied via three phase (with a 3P main DB, NO SPD). Tails split via henley blocks, and a second single phase DB installed; this DB has an SPD for it and it's circuits. Now, normally with a single phase...
  8. 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...
  9. B

    Surge protection for solar

    Hi, We're looking at installing solar at a remote property which is on a TT system with out buildings supplied with underground cables (Stables, tractor sheds...) The array will be installed on one of these out buildings and I am trying to navigate 443.4.1 to assess if it requires an SPD on the...
  10. bigspark17

    3 phase surge on reenergising panel board

    Hi all.. Bit of a nightmare afternoon,, testing a caravan park TP&N panel board IR testing while board isolated before returning power (merlin gerin panel board) over the next 30 mins customers on park are reporting loud bangs inside some of there vans, boilers and electric fireplaces (with...
  11. lbohen

    Does My Tenant's Sub-panel Need a Surge Protector?

    Our farm has a main 200 amp panel in the barn which services the barn, an addition to the barn with an apartment, an herb-gardening facility, and our house. The 200 amp panel has a whole house surge protector on it. My herb-gardening tenant installed a sub-panel from the 200 amp panel, so she...
  12. Shafiq Azmi

    Why MCB and Fuse cant protect Voltage Surge?

    Hi Everyone, I got some Power Module damaged cause by Voltage Surge. My device protected by 25A MCB and Fuse. Why my device still damage although its already have the protection? Any other way to prevent this from happening again?
  13. G

    Surge on community center with flat

    Hi all, got a community center job and the want surge protection, 3ohase in phase for community center and phase for the flat upstairs, question is, do fit surge at the incomming covering both installs or fotfor community center and inenfornflne for the flat ?
  14. newfutile

    Surge protection device failure mode

    I have come across a failed SPD, I thought I would take it apart and post pics for people to discuss. It appears to work by melting an alloy or type of solder to break the connection. I guess this is after the MOV decreases its resistance and increases the current.
  15. M

    Commercial Surge Protection

    Scenario: Commercial TPN distribution board down stream requiring type2/3 protection. Board is at full capacity and breakers discontinued etc. how are people getting around this? is it acceptable to be doubling up in the supply side of the main switch to feed separate enclosure with triple pole...
  16. P

    Surge protection for Solar panels...

    Hi, I have recently had 18 solar panels (390W) fitted to my roof. The system is a GivEnergy. A Gen 1 Hybrid 5kW inverter (Gen2 version could not be sourced!) and a 9.5kWh battery. It all works well (although not much use with just winter sunshine). My question is: I'm sure I have read that to...
  17. The apprentice

    Surge protection/ark fault detection

    Hi there just a few questions I have to do an install of a small ware house that was built in 2021 January (finished) client that is going into the warehouse specialises in laboratory. Now he has a lot of 3 phase machinery like mixers and small hoists which are all 3 phase the building adjacent...
  18. R

    Surge protection on minor works

    Evening all, Pretty straightforward I think. I was led to believe that surge protection needs to be fitted on all additions and alterations including when doing minor works unless the client signs a waiver. Another sparky I work with claims that this does not apply if you are just adding a an...
  19. D

    Surge Protection Advice

    Let me say from the off that although I'm electrically competent I'll be getting a professional in to do the work. I just like to know the answers before I ask professionals questions! So I have a 100A single phase domestic supply feeding the house CUs as well as a CU for an EV charger. One of...
  20. M

    Electrical surge on caravan site

    Hello, not sure if this is allowed but here goes, I was recently staying on a caravan park along with many others, (touring caravan not static) on the morning of June 8 The shower block and laundrette on site adjacent to our caravans lost its electrics, when the site fixed it 7 caravans...
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