using

  1. Perci

    Using SWA cables in parallel

    Hi A job that I'm currently looking at requires a 300A 3ph supply to a unit. The cable will be 100m long so the calc comes out at 240mm2. This cable is to be pulled down a duct, the main issue is it's weight and size will be a battle. I'm thinking of running two 95mm2 in parallel that would make...
  2. GBDamo

    Boiler fitted using 5A Plug

    Just been speaking to a neighbor who has recently had a new boiler installed. For some reason (probably not CPS) they have not used the DP FCU that the old boiler was wired into and instead put a plug on it and used an existing double socket. Has this been done to avoid having to issue a MWC...
  3. E

    Using washers with conduit

    Working with imperial sized conduit. It is 5/8". Would like to fit double back boxes to replace the original singles, the problem being is that the knock outs are 20mm, so they are too big to fit the conduit bush to. I have been to a few electrical wholesalers trying to source parts from...
  4. S

    Wonder how much this would cost to install nowadays using modern Panel Equipment

    Have been working in a building installing emergency lighting. Was taken back by the size of the Main Intake Room. Biggest Intake Room I've ever been in! Like to see other people's pics and experiences of any other interesting buildings etc. Thanks Sam
  5. D

    Diode advice

    I currently have an intermittent issue with a disabled alarm system. The pullcord has a fault monitor connected across it in the form of a resistor and diode in series which I suspect is the culprit. The diode only reads continuity one way as expected but the resistance through it the correct...
  6. O

    Heatmiser uh1

    Hi all I've recently fitted a underfloor heating system using heatmiser controls and a Worcester Bosch oil system boiler but I'm a bit unsure as to what connection to make to the boiler. On the heatmiser wiring center I have an in and out boiler enable volt free, and at the boiler I have L N E...
  7. C

    Using an outdoor light via normal 3 pin plug?

    Hi all, I'm not an electrician, I come here for advice. I wondered if it would be possible and safe to run a long, thick, armoured cable from my outdoor plug on my conservatory underground around 20 metres to power an outdoor light? Or would I need a full new circuit ran from my consumer unit...
  8. S

    Assignment help

    Determine the minimum size of cpc for the circuit giving consideration to; Disconnection times Thermal Constraints? Here is what I have worked out so far for the circuit - Ib=p/(Ulx√3) = 12000/(400 x 1.732) = 17.32Amps From Table B6 I selected a C20 which has a max Zs of 0.87 Ω 20>17.32...
  9. akwoody2

    Using a sub-contractor, what needs to be in place?

    Good Morning, Due to busy times i need to start using a sub-contractor to help with the work load, i have spoke to Stroma (who i'm currently with) and they have said i need to get a contractors agreement put in place. Has anyone had any experience with using sub-contractors? If so, apart...
  10. ImpededLoop

    DADE

    Well I thought I had all the tools and gadgets going! I bought a dust and debris eliminator (DADE) this week and I'm really impressed. It's used for catching the dust from drilling downlighters. Probably the simplest tool I own, but definitely one of the best (perhaps after my wire coat...
  11. O

    Mono Water Pump Cabling

    Hello, Can anyone please assist me in the following: My client wants to feed a Mono water pump from a distance of approx. 360 metres. I have a choice of using PVC/PVC cable taped to a catenary wire. I am not happy with this method and would prefer to run PVC/PVC/SWA cable underground. The...
  12. A

    TNCS - USING NEUTRAL AS EARTH IN BOARD

    Im travelling abroad to a country that has no earthing arrangement and my friend would like me to do a bit of work on his house. My question is Whether or not i could create a link between the Neutral and Earth bar to create a tncs system. I know it sounds strange but i have just been thinking...

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