system

  1. T

    How do you "pair" a Zappi and a Solar/Battery system?

    Hi, I have a Zappi charge point, and a myenergi Hub. I also have a battery/solar system. How do i "pair" these together? Or dont i need to do anything?
  2. O

    How to solve an iPS alert in SCADA system

    Hi everyone! I just took over an SCADA system and i discovered we have an iPS with an UPS. There have been a trouble with iPS. A long beep every 3 seconds with LED "communication indicator" is RED. It seems battery is missing. I have just graduated and have no experience. How can I do to solve...
  3. S

    48 v adjustable relay for over system hot water heater

    How to have a hot water heater turn off below 50 v and on at 52 v. I have a 48v off grid pv system running our cabin. It has a 5000w inverter. I have been heating our domestic hot water during the day with 120vac and manually turning it off at night in order to preserve the battery capacity...
  4. W

    S plan plus heating system help needed

    Evening, im going to try and explain the heating system im currently wiring, I have most of it wired up, there’s just a few bits im not sure of so any help/diagrams would be very helpful. heatmiser UFH 8 wiring centres are used in both cupboards. In the utility room cupboard (cupboard 1)...
  5. W

    door entry system with log

    Hello, I am looking for a door entry system with fobs to operate a mag lock on a door. Ideally I would have a system which records of log of what fob and when opened the door. What makes would you recommend looking at or avoiding. Thanks
  6. E

    System Impedance

    Hi Guys found this in a Ariston 9.5kw Water heater instructions quote ''The product should be connected only to a supply with the relevant system impedance no more than 0.237 ohm. Restrictions to connection may be imposed by the supply authority on the use of equipment in the actual...
  7. O

    SRS Airbag system

    Hi all! I have a Toyota Granvia '96 KCH10W (basically a HiAce) which is throwing an error with the SRS airbag light staying on permanently. These are Jap imports which are next to impossible to find real service information on, and I don't have the thousands of dollars I have been told to...
  8. newfutile

    Type of earthing system?

    What type of earthing system is this?
  9. F

    TT SYSTEM

    Took a swa cable to an outside metal shed, earthed at house end but insulated at shed end. Installed earth rods and got reading of 58ohm . all good. However glanded cable shed end for experiment and got 0.24ohms. Question what are the dangers and why cant you have both earthing systems in...
  10. S

    Generator powered offgrid system with batteries advice

    Hi all I hope everyone is doing well. I have a new rural small house coming up that I need to use generator power for. It's 105 sqm and the time and cost to get connected to the grid need to be pushed out for me. (1-2 years) Has anyone any experience with some type of battery connected to a...
    • speedystu
    • Thread
    • advice batteries custom generator generator set inverter new build off grid powered system
    • Replies: 11
    • Forum: UK Electrical Forum
  11. A

    AFCI breaker tripping ONLY WHEN grid tie solar system active

    I had solar installed professionally 3 years ago. The home is 10 years old and has 3 AFCI breakers for bedrooms. One AFCI circuit was hardly used. A new mini fridge was plugged into the rarely used circuit. The mini fridge (60 watt) now causes the AFCI breaker to intermittently trip. I moved...
  12. O

    UK Can someone tell me what this wiring system is called?

    Hey guys, I'm new here so please let me know if I'm breaking any rules. Can someone nudge me in the right direction for the attached? So I can do some research.
  13. G

    Split system wiring, with wild leg

    Hello, my name is Bruce. I'm a store owner trying to understand the wiring involved to install my split system. I have some electrical experience nothing professional. I observed and learned as much as possible when my building was built. Panel: 3 phase with wild leg Outdoor unit...
  14. A

    can I plug in a Kohler standby 14kw to my 50amp receptacle

    can I plug in a Kohler standby 14kw to my 50amp receptacle which supplies both rails in a 200 amp box (already installed interlock system for my box) installation is more than the generator!
  15. 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
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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
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