surge

  1. timhoward

    Can a surge physically damage an LCD screen telly

    I got called to a site this morning. It has an overhead supply with a substation on the site. Last night there was a power outage for about 2 seconds. I could find no real evidence of anything beyond this, nothing tripped or blew anywhere, and the only evidence was the usual aftermaths of losing...
  2. R

    Surge protection devices

    Hi Guys Hoping for a straight forward answer. Please can someone tell me if SPD's are mandatory in domestic dwellings at the moment (Amd1) and are they going to be mandatory with AMD2. Thanks
  3. D

    BG Surge Protective Device

    Is there a reason why these surge protective devices come with 2 neutral links?
  4. I

    Surge - Commercial - When is an SPD required?

    Can anyone advise when SPDs are required to be installed on commercial properties? I'll always install them on a full rewire of a commercial property or if I need to install a new DB, I'll make sure to fit one with an SPD installed. What about if its a large store, 36 to 72 way existing board...
  5. Daniel DD

    Surge Arrester Installation and External Short Circuit Protection Device

    BACKGROUND I live in a small town where it is difficult to find ceritified electricians. In fact, electrician certification is not common for residential installations. I did find some experienced electricians but I don't think they are certified and know best practices in the installation. I...
    • Daniel DD
    • Thread
    • circuit circuit protection device external installation protection short short circuit surge surge protection voltage drop
    • Replies: 1
    • Forum: DIY Electrical Advice
  6. Pretty Mouth

    RCD tripping, could a surge protected extension lead be responsible?

    I had a fault finding job on Thursday, intermittent RCD tripping. 2 actually, there was a 30mA RCD upstream, and a 30mA RCBO protecting the problem socket circuit, and either one could trip. I had limited time to work on it, but had eliminated everything obvious through testing, and was...
    • Pretty Mouth
    • Thread
    • extension extension lead lead protected rcd rcd tripping responsible surge tripping
    • Replies: 4
    • Forum: UK Electrical Forum
  7. P

    Mains cable surge impedance

    A short while back @marconi asked for the surge impedance of some 25mm SWA, so here are some related measurement results. For those who don't recognise the term, "surge impedance" is the same as "characteristic impedance" as in the 50 ohm cox cable you see advertised. It can best be explained...
  8. A

    Deep power surge last night I noticed, could this be the cause?

    Last night while laying down, I heard my air purifier and a little fan that was going almost cut off from a power surge but then it went back to functioning normal. It did it once more about 1 minute later and then I never heard it again the reset of the night. Also yesterday when I got home...
  9. S

    3phase surge suppressor connected to a single phase utility supply.

    I am using a 3 phase 4 wire surge suppressor on a single phase 240V mains. Is it still okay or will it have some back feed impact on the mains system?
  10. R

    What is a SURGE TEST will it kill horses.

    Over the years I hve lost horses due to rapid weight loss. Always occuring straight after a helicopter was flown over the H V power lines surge testing ???. The Distributer will not help or advise. The whole system HV and LV dates back to the mid 1950,s and I believe unsafe. There are several...
  11. H

    Could backup battery have damaged my refrigerator?

    I have been working with a great company to install a solar system in my house. The system has a 10kWh backup battery system that can provide power to a subset of our circuits in the event of a power outage. The company sent a technician to do the final check of the battery system. I am not...
  12. N

    Anyone know where I can locate an inline surge suppressor 230 v 30A

    Anyone know where I can locate one of these, inline surge suppressor 230v 30A
  13. O

    Recommend a surge protected extension lead

    Need a new surge protected extension, trying to avoid the merde on Amazon, can anyone recommend something decent? Have a belkin but they have used 5 one way clutch screws in the base to thwart repairability so they are off my list sadly...
  14. L

    Surge Protection

    A DNO supply fault this week resulted in damage to several electronic devices (audio equipment, chargers, appliances. USB ports sockets etc). My question relates to the best type of surge protection to negate the effects, not just of transient overvoltages, but of a prolonged overvoltage. It...
  15. N

    Better?: Canadian surge bar with UK Plugs paired wit

    Hi, I hope you are all doing well. I have original UK samsung, apple and Huawei plugs and would like to know which combination of plugging them into my Canadian outlets would be best in terms of Safety, Protection and Efficiency. Please suggest which option from below would be best? 1) Buying...
    • Nursemoe
    • Thread
    • adaptor adaptors better canadian outlet plugged plugs surge surge protector
    • Replies: 3
    • Forum: UK Electrical Forum
  16. A

    Surge Protection

    Hi, I recently upgraded my home panel to a Square D qo panel. I had a Siemens FS140 whole home surge protection installed in the first space on a 20 amp double pole breaker. I tend to lose power a lot and get surges from trees on the power lines when it rains. I have two square D HEPD 50 surge...
  17. B

    Surge protection cable length

    Hi all question regarding the length of surge protector cables. I have read the reg 534.4.8 that states that the length should not exceed 500mm. Is that for each conductor so every conductor should be 500mm or less. So with a 3 phase surge protector all 3 phases/neutral and earth should not...
  18. Designmen90

    Fuse for surge arrester protection

    Hello everyone, Is there any rule how to determine the size of fuses which will protect surge arrester. I have 3P+N surge arrester, 20kA, and I need to protect him with fuses. But, how to determine the correct size (amper) of those fuses. tnx
  19. dodger421

    Inline Surge Protection?

    I've been asked about providing inline surge protection for the UPS supplies in numerous network cabinets around our factory and I'm hoping someone more experienced in this might have some suggestions. There are about 15 cabinets dotted around the factory containing various switches and routers...
  20. C

    Surge protection required?

    My full time job is a maintenance engineer, part time, I'm small domestic electrical work. In the factory where I work contractors are installing new circuits to a sub 3 phase board. Rcd has been installed after the breaker although I know you can buy rcbo's for this board. Nothing wrong here...
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