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lightning

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  1. T

    Nearby motors damaging LED floodlights

    I do some electrical maintenance for a local church, the main hall is lit by around 12 LED floodlights, (they do look cheap) they seem to be constantly dying, they have asked if a wood work shop across the road could be causing this, with saws and other machinery constantly starting up, I’ve...
  2. V

    Lightning Protection

    I have a Liquid Nitrogen tank getting installed on site, its 16m high adjacent to a taller building and I'm providing the power to it. There are plenty of earth spike locations near it but, purely from observation other sites don't appear to have any means of protection so, how do I know if it...
  3. D

    Lightning r1r2 testing advice

    Hello all, I have replaced fuse board for nic eic assessment. Discovered few issues with current wiring (no bonding, supplementary bonding connected to socket earth, r1r2 0.01ohm.. .) but my question is for light testing do I need to measure r1r2 at light fitting (wall light) or switch is...
  4. D

    Lightning protection system

    HI All, Does anybody know something about requirements about lighting protection system?
  5. I

    Hello from me and quick Lightning question

    I recently purchased a kinetic light switch with two buttons and two receivers like this one Kinetic Light Switch and Receiver Kit - Double | Kinetic Self-Powered Wireless Switches - https://wireless-switches.com/product/kinetic-light-switch-and-receiver-kit-double/ (if links are not...
  6. LeeH

    Lightning Protection.

    Does anybody know of a good read to basic lighting protection requirements? Anybody worked in the industry?
  7. UKMeterman

    Lightning V 11Kv transformer

    Hi, Lighting V 11Kv transformer, you might like to turn the sound up loud! Luke McKenna on Twitter - https://twitter.com/McKenna_McFc/status/775769365451010053
  8. Sintra

    Lightning Protection Guide

    Sintra submitted a new resource: Lightning Protection - Lightning Protection Read more about this resource...
  9. O

    Iphone USB charger cable - lightning

    Ok, I'm fed up buying replacement (not Apple) lighting cables - the cheap ones don't last that long and the Apple ones are a rip off. Can anybody suggest a supplier of cables that last. Thanks:clap:
  10. S

    Lightning circuits??

    I have recently moved into a 50s semi detached house, with cast iron conduit wiring circuits. we have decided to fit two feature down lights above the fireplace, and operate them from a double switch that will also service the ceiling rose & fitting. we have used 2x core from the down lights to...
  11. L

    DC fuse blowout

    I was asked earlier this week to look at a solar system on an office/warehouse that had stopped working (not my install). The strings all come into a Fronius DC box on the roof. When I opened it up it was pretty clear why the system had stopped producing: I'm looking for opinions on what may...
  12. Simonslimline

    Lords of lightning!

    Anyone ever seen these lot do their lightning show before? I watched them at Glastonbury festival back in 2010 in the arcadia arena. Quite something with all the flames blasting out of the stage and high lampposts etc. :crazy: https://www.youtube.com/watch?v=1fDq3WcdqMM
  13. bigspark17

    Hospital and large commercial earthing arrangements

    Just pondering why hospitals and large commercial sites have many many earth pits sited 1 or 2 meters away from outer walls on corners and on pillars.? Is it to do with lightning protection or are the earthing arrangements tns or tt for these installs.?
  14. vxwestie

    Domestic surge/lightning protection

    Please excuse me if this is a silly question, but it's a subject I don't have a great deal of knowledge on.... I'm currently in the process of a the second fix stage of a rather remote domestic new build in the middle of Bodmin moor. Like a lot of installs now it involves a air heat source unit...
  15. C

    Lightning Protection

    Hello Fellow Sparks I am a QS or a large London based electrical maintenance/install firm and our clients are frequently asking us to take on their lightning protection in regards to installation and maintenance. I want come up with a plan of action to ready us for such an on take and with that...
  16. S

    Instrument for Testing a Lightning Conductor

    Is it possible to test Lightning Conductor with an Earth Loop Impedance Tester ? Discuss . . . . . . . . .. .
  17. SolarCity

    Protecting ground mounted PV equipment from lightning strikes

    We were called to a job today where all three SolarMax 15mt inverters have failed. No display on the inverter and it was around the time of a severe electric storm. We are to replace the three inverters but I wanted to offer him some protection. Does anyone have any idea what kind of measures...
  18. C

    Lightning Protection

    Just wondering if someone can give me a hand here... I've never looked into or installed lightning protection but i've got a potential job installing lightning protection on a building that doesn't have any. Just wondering if there are particular regulations I need to adhere too etc... As I...
  19. M

    Lightning, spds and rcds

    Went to a property today where the lady is having problems with a 30mA rcd tripping during lightning. This is an upfront rcd protecting a small db in a large metal roofed garage which feeds 1)garage sockets, 2)garage lights, 3)electric gates and 4) fish pond equipment. It is the gates being...
  20. L

    Earth Electrode Testing

    Hi, How to test an earth electrode resistance for Lightning Protection System in the middle of large concrete pad? I cannot not find a soft ground for spikes to drive in for testing. Is there any other ways of measuring the earth electrode resistance value? Thanks Laxi

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