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  1. J

    Can I install a BS-5839-1 fire alarm system or do I require specialist insurance cover outwith the norm

    THIS IS FOR ELECTRICAL NEWS ONLY
    • James Watt
    • Thread
    • alarm cover fire fire alarm install insurance require system
    • Replies: 1
    • Forum: UK Electrical Forum
  2. J

    how to restore a pir zone on a system!

    Hello. I have an optima xm6 alarm. If i need to omit a pir zone the user guide is clear and it is easy. However, if i omit a pir zone and later wish to restore it on the system how is this done if it isn't a silly question? The user guide i have is not clear on this. Can this be done simply...
  3. S

    RcD x5 failure on TT system

    Hi Guys, recently installed a new radial socket circuit from CU. When ramp testing 30ma RCD at unit, without loads, everything was fine. When I energised the circuit and tested again, the furthest two sockets failed the x5 test giving a 40ms reading. Other sockets on the same circuit came in...
    • Sparkie Stow
    • Thread
    • failure rcd system tt system
    • Replies: 10
    • Forum: UK Electrical Forum
  4. S

    Fire panel & detectors system

    Hopefully someone who works with these regularly can hit me with some sort of tip here. Hotel owner I know decided to change all his detectors now it’s coming up general fault on the panel. I’m guessing he hasn’t noted in & out on cables before replacing but he’s sure he did. He also says it’s...
  5. Z

    Security system question

    I have a four camera wired system. I fancy adding a 5th camera. I have an idea that someone may have invented a splitter box that could rotate from one camera to another say every 30 seconds - so that you can cover 2 areas for the price of one channel on the recorder. any other ideas would be...
  6. M

    Fixed wiring testing required for an addressable fire alarm system?

    Hi, I would be grateful if anyone could confirm the certification required for the addition and extension of a fire alarm. Scenario is, I have installed the fixed wiring for the alteration to an addressable system as per their drawings, fire alarm contractor will commission. I assume I can...
    • Mike F
    • Thread
    • alarm fire fire alarm fixed required system testing wiring
    • Replies: 5
    • Forum: UK Electrical Forum
  7. S

    Battery Selecting the proper solar panel/ battery system for 12v LED strip

    Hi all, Complete novice here, but I'm trying to learn. I am making a solar powered, back-lit estate/ driveway entrance sign, and am stuck regarding the correct wattage, amperage, etc for the panel and battery. I'm planning to use 5 meters of 12v 18w strip, but would like to be able to use...
  8. C

    Disconnection Time for IT system

    What is the max disconnection time for an IT system? I think it would be shorter in that an MCB would only be triggered after a fault on two individual circuits hence double the loop impedance?
  9. cliffed

    Lighting system in open plan office

    Open plan office real dated lighting system...refitted led panel lights..each desk operates their lights over their desk, via a pull switch. Some have their lights on some off....is there any system that could work without using pull switches.
  10. S

    Advice on TT system

    When carrying out Ze with main earth disconnect I get a reading of 77.25 ohms. All good. When main earth is reconnected and all parallel paths in place reading comes down to 0.60 ohms. I have 3 lighting circuits not covered by an rcd all Zs readings are well in permitted Zs. Would any body apply...
  11. I

    TT system, earth to neutral not tripping RCD

    TT system, Zs on socket circuit is 77.2 down a good bit after I added a second earth rod. When I short neutral to earth RCD doesn't trip. Can anyone help me out and explain please.
  12. A

    House earthing from an off grid solar system

    Hi everyone, I live well off grid in Wales and am presently renovating a small property. As part of that renovation I have had a full off grid solar system professionally fitted coupled with a generator back up. The inverter charger has a neutral earth link as does the generator. The inverter...
  13. C

    Hi. I could use some official advice . Is the Old Twin Mains fuse system considered unsafe and worthy of a C2 on a Condition report?

    Hi ! I could use some official advice please. Is the old Twin Mains Fuse system considered unsafe and worthy of a C2 on a Condition Report ? My feeling is that it's technically unsafe. I'm wondering if it could be classed as a C3 if the rest of the installation is ok, only because I'm under...
  14. T

    Can you use a 240V breaker on a 600V system?

    This is hypothetical, I am just curious. Please give this some thought. I have a 600V, 5HP motor (3728.5 Watts) and a 600V panel I want to supply it from. If I use a 20A, 600V breaker - the breaker will see ~6A on motor run. (P/V=I , 3728.5/600 = ~6A) If I use a 20A, 240V breaker - the...
    • thetaylorleopold
    • Thread
    • 240v breaker system
    • Replies: 8
    • Forum: UK Electrical Forum
  15. A

    Smart alarm system recommendations

    Hello, I would like to upgrade our existing, wired, burglar alarm system for smart alarm system. We don't use it as the cat keeps setting it off, although it works fine. Rather than just get pet PIRs I would like to upgrade the whole system. I don't want to go down the WIFI or hybrid route, so...
  16. N

    Does anyone recommend a CCTV system?

    I've been seeing on social media the past few weeks that there have been a few attempted break-ins to people's property. Does anyone recommend a certain type of CCTV?
  17. Z

    Can anyone help.earthing system

    Hello all, can anyone clarify what this requires on a dno supply that needs to be upgraded. In regards to the earthing system, the application has a tick box which I'm slightly confused about on what it required, it's the part on steel framed building and why this is done
  18. S

    How do I comply TT system

    Hi guys wondering what's the best way to do this got a board change on a TT system 3 bed terrace. So we need to offer an SPD however can't have one in a metal C.U without RCD protection on the Tails because of the single insulation feeding the SPD. So to do that that we need an s type RCD...
  19. L

    Home alarm system

    I am looking for a home alarm without being recommended by ads and marketing. I would like a wired bell box and key pad, but wireless sensors and door contacts. As i prefer not to run out cables all over my house. Any recommendations please?
  20. J

    Battery Texecom 'A System Low Battery Alarm Occured'

    Hi, I've just got a texecom connect notification that 'A System Low Battery Alarm Occured'. I'm wanting to find out what this means? I'm a total Texecom newbie but i'm wanting to see if I can sort it out myself rather than calling the installer back for a charge. I've had it around 2 years now...

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