system

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  1. 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
  2. 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...
  3. Dan

    Testing article system

    Testing article system out.
  4. KeenPensioner

    Quinetic switch on 2 plate system

    I understand how to fit a receiver and quinetic switch in a 3 plate system at the ceiling rose. Is there a way to do the same when the feed is taken to the switch (not enough room for receiver etc)?
  5. J

    UK Installing a sub main from existing TT system

    Hi all, I’m new here and after some advice on a sub main circuit I have a 3 core SWA feeding a log cabin from a house. The house has an existing TT system and I’m just wondering what the best way to supply the log cabin would be? What would I need up front to protect the SWA, I’m presuming a...
  6. J

    Advice on which door entry intercom system to choose

    Hi We're a block of flats about to purchase some new external doors, and an intercom. Up to this point in time we've not had an intercom, and our external doors don't even close properly let alone lock! We've decided that we'd like a video entry wired intercom, with the additional ability for...
  7. T

    Best Consumer Unit set up for TT system

    Hi all, I'm just wondering what is people's preferred choice of set up with regards to DB's for a TT system within a domestic setting. I know there's different views on this (Type S uprfront etc). Are most people installing dual rcd boards or DP Rcbo's? Just looking for some views on this. Many...
  8. S

    Information on a Norweb Smart Heat system

    Hi, i have recently bought a a house and has the Norweb Smart Heat System installed with an Apollo Injector. Never seen this system before, i am wanting to strip all this out as i will be installing central heating but would like to know how it works and what it actually does. Cheers
  9. S

    NOBO SYSTEM 500 ORION 512 CONTROL

    Hi Guys, been asked to replace the above control system as its is failing intermittently on individual heaters. Cant get a hold of CREDA (as I have been informed they are the company to ask) to give me advice on a direct replacement, so anyone have any experience on replacing this obsolete...
  10. T

    All in one system

    Good evening all Im after a system that has CCTV, Intruder alarm and door entry video system all in one, I want it to be app based Any products out there people know of? T
  11. Grangewood

    Inspecting and Certifying Fire Alarm System

    Good Morning .. I’m after some advice please. I have a contract with a company for Various Electrical Systems. The Company has an Old Style Automated Fire Alarm System installed around 2000 which I have examined, the System itself is in good order but fails by Current Standards. I did advise and...
  12. M

    Earthing system

    Whats this.?.Cable on the left is alluminium, right one is copper. A couple of strands has been taken out from copper neutral and connected to outer pipe of left cable and then to main earth terminal. Is it tns,tncs,tt?,no earth electrode anywhere found
  13. S

    TT system

    Hi guys the house I live in is a the earthing arrangement is a TT sytem were the meter is outside the house I opened up and saw there was no met terminal with no earth. I remember when the house was built there was an earth rod buried in the ground my question is was the earth suppose to be run...
  14. spud1

    What are the requirements for interfacing a new gas supply with a commercial buildings fire alarm system ?

    Hi Im working in a staffed residential home (for severe learning difficulties/disabilities residents) they have a new onsite tanked gas supply being installed to supply two domestic sized gas boilers in seperate locations, which will replace the existing big oil fired boiler. I need to clarify...
    • spud1
    • Thread
    • alarm buildings commercial fire fire alarm gas new requirements supply system
    • Replies: 4
    • Forum: UK Electrical Forum
  15. Dartlec

    UK Click mode switches and new grid system are great

    First try using the new Click Mode switches today, and I love the way that every light switch is automatically a grid switch. That means you can buy a light switch and change the modules to whatever you like. I was fitting an outside light and was able to swap out one of the switches on a two...
  16. L

    Coding for lack of 30ma rcd protection - TT system

    I’ve had a disagreement with a colleague on this. Installation has 100ma rcd main switch. Some circuits (5) on this side and further 4 on the 30ma rcd side. what is the coding for this?
  17. richy3333

    System Q Wireless IPmitter

    Morning all. I have a need to link 2 buildings on a HIK POE CCTV network. They are only about 5-8m apart and have line of sight etc. I was looking at the System Q IPmitter and wondered if anyone else had used them? Are they any good or can someone recommend anything else? Thanks in advance.
  18. P

    How to connect my audio intercom phone to the new Home Video Intercom System ?

    Hello Can any one explain please how to connect Audio intercom phone ? Would it be possible or I need to buy video interface .
  19. S

    Earth Fault at 240V Single Phase System

    Hi... I am Shamsul from Malaysia I have a question regarding to earth fault current if occur inside 240V single phase customer house/building 1.May explain how the earth fault current flow route 2.If got local earthing was connected from ground to 11kV 3phase DEAD line, is it the fault current...
  20. J

    UK Type of Earthing System

    Am i right in saying this is a TNC-S earthing arrangement? The supply cable (which looks perished any advice on this welcome) comes from the wall in between the two houses (its a semi-detached). And no sign of it outside wall. So must be fed from underground. But there is a separate stranded...

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