system

  1. N

    Older home with no grounding system and pool pump

    Installing a small above ground pool with a 1/2HP 120v pool pump. The house is older and has no grounding system that I can tell. Outlets are two prong. I know I need a gfci outlet to plug pump into but will this be safe and work as intended with no grounding system and only a hot and neutral...
  2. M

    The names of the parts for PLC System

    SNMP or Modbus TCP/RTU Protocols to connect the PLC to external HMI LCD HMI LCD with graphical representation & ability of issue control commmands power supply for all system components with backup batteries built in web browser (http/https) Different users' levels SNMP protocol Email...
  3. A

    Unexpected/weird On/Off switch behavior in 12v DC System

    Here's the setup: 400ah battery bank on 12v has a positive line that connects to a 400a fuse, then to a Blue Sea On/Off Switch, then to the positive Bus Bar, then to the Fuse Box, then to the Loads. Loads come back on the negative to the Fuse Box, then the negative Bus, which goes to the...
  4. D

    Cables run in Wolf Easi joist system

    Hi Guys Im wiring a domestic dwelling that has the Wolf Easi joist fitted. The central web is great is running services, but how do you fix cables running with and at the normal to the joists? My first thought was mini trunking say 100 by 100, then we should to do grouping calcs. Why trunking...
  5. fourtytwo

    Does anybody recognise this mounting system please ? SOLVED

    Does anybody recognise this rail profile please ? Its from an existing system I wish to extend. EDIT SOLVED....I think it's PV-EZrack pro series here
  6. J

    AM2 NET Marking System?

    Yo I recently sat my am2 this week and I am awaiting my results this week, just wondering how stringent NET are with the marking side of things, is each segment passed on a percentage (say 80%) or is a 100% required throughout. Thanks in advance ⚡️
  7. Chas70473

    Smart start system installation

    Hi I'm trying to install smart start system in my mazda6 2009 gh tamura. But can't understand wiring diagrams. Trying to find negative door lock,unlock door trigger and ground wire on bcm. Any help would be appreciated.
  8. G

    TT Eathing system to be installed

    Will a TT earthing system be complicated to fit to a block of 6 flats and 1 communal area And is it expensive UKPN have told me this is there preferred option rather than a new supply from the road which would be very expensive
  9. S

    Solic 200 alongside Battery system

    I've seen similar questions but not one that specifically answers my question. I have a Moixa battery system in my house that uses a clamp sensor on the live feed to use excess solar power to charge batteries, that's all fine of course. Problem is, and you may guess this, when I fit the...
  10. M

    Safe system of works around pv array

    Due to an incident of an induced voltage on the array framework and someone getting a shock what’s people safe system of works in place to minimise this happening ?
  11. timhoward

    Help with replacing Entryview 3

    I looked at an old ESP Entryview 3 Multi system this morning with a faulty monitor unit, doorbell in one flat not working. After connection check both ends, and swapping two ports didn't result in a doorbell working I gave up. As far as I can tell I haven't a hope of getting a compatible spare...
  12. timhoward

    IT system - how do RCD's ever work

    To avoid distracting another thread... @Julie helpfully said that an RCD can be used with an IT system to achieve disconnection after the second fault. I'm not understanding how. If both faults are between transformer and a load it just becomes a parallel path with negligible resistance, and...
  13. B

    Central battery through continuous lighting system

    Have dealt with central battery systems in the past, fire rated cable that either loops in and out of the luminaire using ceramic terminal blocks or dropping out from a junction box (again with ceramic terminations/connections) down to the luminaire with standard cable as long as it is kept...
  14. Need_more_wago's

    DALI Emergency Lighting Automated testing via a control system

    Hey, with regards to DALI Emergency Lighting Automated testing via a control system, does anyone know how best to overcome a fitting that is reporting... 'Duration test max. delay exceeded' This is preventing the DALI EM fitting from carrying out its requested 3-hour Duration test. Batteries...
  15. 14jtracy

    40 volts reading on entire 120 v system

    Hello, I have a concern about the reading I'm getting from every outlet in my house. Its an older...circa 1890's...but from what I understand, has added wiring in 2 major renovations. The first time to add ceiling lights with wall switches; and the second time (1987ish) to install baseboard...
  16. S

    Small solar/battery system problem

    Hey guys, hoping someone can help with my problem.! A client of mine asked me to rig-up a little solar system to power a diaphragm air pump (230V/3A) for a cesspit. Solar/low voltage isn't something that I'm that familiar with (I'm a sparks), would have much rather just laid some new armoured...
  17. J

    Removing old wired stat for new hive system

    Hi Firstly if it wasn’t for this forum I would not have been to able to wire my hive controller so quickly so thank you ! Still sort of on topic of my hive I need to disconnect my old wired stat. I believe two of the wires will need connecting together to complete the circuit. Could anyone...
  18. U

    Any battery storage system worth having ?

    I already have a 4kW PV system that will be 10 years old in September, just looking at how much my electricity cost will increase in March when my fixed rate ends i'm starting to wonder if any Battery storage system is worth investing in now that energy prices and going mental.. My Electricity...
  19. K

    Fire system recommendations

    Hello all, Firstly, I am not installing this myself and have several pros coming in to quote in the new year. A couple of years ago, most of the first fix was done with with FP200 cables to each room and corridor. I am now looking for recommendations for addressable fire systems/panels for a 7...
  20. LuLeta

    Stuck on wiring system

    I am working on some archway lighting, after a finished install the contractor has changed his mind and wants all of the lights to come on at lux level 35 and half to switch off at 70 lux level via photocell. I have wired the lights in a leap frog way as the lights are on both sides and the...
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