system

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  1. S

    Fire Alarm Circuit RCD Protection TT System

    Doing a board swap on a HMO property with a TT system later this week and I've been asked to add OCPD for an L1 fire alarm system. As usual the landlord is being a little cagey with letting me know the other tradesmans details so I can confirm this but I'm on the understanding that a fire alarm...
  2. S

    UK PILC mains cable to PME system

    How do uk power networks install a PME system on old PILC mains cable. Do they use the old cable and put a junction on, where it terminates in the property. Or do they put new cable in from the street. Do anyone know how much they charge for this. I'm getting the usual unapproved earthing clamp...
  3. Zerax

    Earthing system quiz

    What sort of earthing system would you say this is ?
  4. G

    If one plasters over electric radiant ceiling, will the system still work?

    If one plasters over a radiant ceiling heat system, will the system still work?
    • garytag
    • Thread
    • ceiling electric electrical work screwfix still system work
    • Replies: 1
    • Forum: UK Electrical Forum
  5. J

    Cable Marking System

    Hi, i am looking for a cable marking system i can use from 1.5mm to 16mm. Would be great if had L1, L and L3 complete without my having to make them up. This is the nearest i can find but the buggers don't do L1, L2 and l3 in the larger sizes :-(...
  6. K

    Generator feed to 2L+1N system

    I live in the Philippines but I have the same US electrical system (2 x 110V hot + 1 x neutral). I have two ground rods buried 8 ft. deep and connected to the main panel. Netural and ground are bonded in the main panel. And from the main panel, all 4 wires (2L + 1N + 1G) go to sub panels. Ground...
  7. A

    DIY Security System Do I need Steping Power Supply

    I am making a security door system with reed type magnet switch. I have tried it on my desk and it works. I can set the time to stay on for several minutes. I was wanting one which would stay on even if they closed the door back quickly. This does that. My questions are: Do I need a stepping 12...
  8. C

    RCD Main switch on TT system

    Hello everyone, Does an RCD as main switch in a TT system a must or not? My question is can you use an isolator and then RCDs for the rest of the distribution board? Thank you
    • Cooper_day
    • Thread
    • main main switch rcd rcd main switch switch system tt system
    • Replies: 3
    • Forum: UK Electrical Forum
  9. G

    PV System for multiple users

    I need to set up a 40 kW grid tied PV system on the roof of a condo with multiple user. The objective would be to feed all the different apartments each one of them with its own DB and meter. Is there a solution smarter than splitting my solar system into smaller independent system (e.g. 10*4...
  10. Admin

    Testing article system

    Testing article system out.

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