connections | Page 9

connections

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  1. P

    installation on one roof, multiple connections, any issues?

    Hi all, We are possibly looking to install PV on an industrial unit roof which will feed 2No separate units (2 meters) within the same building. Are there any issues with having one array on the roof, earthing it to a new rod (TN-C-S system already existis) and feeding the two separate points...
  2. U

    Query on PV grid connections?

    Recently had solar PV installed and something looks odd to me on the way it is plumbed into the grid. Can I pass the details on for comment? The incoming mains that went from the supply fuse to the meter has been re-routed into a big connection block (henly block??) from there it goes to the...
  3. C

    Need help with square D pm 700 metering connections

    Hi all I just installed eight square D PM700 meters, four single phase and four 3 phase, the 3 phase connections are via a Square D CB CN range and are wired to system type 31. The problem is that there is no display on any of the meters. The fault finding section in the book say to check...
  4. I

    SMA WEB-BOX RS 485 link connections?

    I have a Webbox to link up to an externally located STP 10000TL via RS 485, has anyone carried out this type of coms link yet? On recommendation of a supplier I sourced 100m of RS 485 shielded cable containing a twisted pair. The STP installation maual shows one core being used for + and one for...
  5. O

    Immersion heater circuits with additional connections

    All, About 50% of the houses I've been in recently have had additional connections added to the immersion heater circuits. The most common is a socket or FCU for a shower pump. In my mind BS 7671 says that water heaters should be on their own circuits. Bearing in mind that the vast majority...
  6. A

    3 port valve to cylinderstat connections help!

    I need to connect a new cylinder stat to a 3 port valve. I have on the cylinderstat C, 1 and 2. On the 3 port I have brown blue and white wires but these are not labeled or identified and there's no instructions to refer to. How do I know I've connected the stat to the valve correctly...
  7. D

    Multiple feeds into 2G 2Way light switch

    Today I picked up a 2nd fix job as previous sparky unable to finish and I was a little confused at what I saw. In the Kitchen there was double switch but with 4 cables coming through the socket. Lucky for me they were labled "feed" "feed to Light" "2Way1" & "2way2" now this is a bit confusing...
  8. P

    Polarity of Invertor Connections

    Just connected up invertor of first system thought I woudl check with supplier about the polarity of of connections from the dc Isolator to the invertor the technical support told me that I would have to remember in what order the cables came off the array in order to get them the right way...
  9. S

    Multiple connections to one meter

    Hi folks, scenario is "old fashioned" meter with two sets of tails connected to the meter (going to different parts of the same property), haven't taken the cover off but it looks each pair is in the same terminal. Doesn't look like an acceptable termination to me (should be service connector...
  10. L

    AC connections from PV system via sub main

    I have a potential customer who is asking if his proposed system can be connected to the grid via an external office, which has its own consumer unit fed off a sub main from the house consumer unit. Assuming cable csa's are ok for the load and volt drop does this meet the recommendations for...
  11. F

    Solar Connections??? MC3, MC4, Sunclix, Tyco, Radox, Huber+Suhner, Amphenol, Solarlok

    Hey guys, With so many different Solar connections available it's time to figure out what most people are betting on! MC4 seems to be the most popular at the moment, but is this going to continue? Are Solar installers still buying MC3 connectors "just in case" or are you replacing...
  12. C

    Kitchen connections- notifiable or not

    Hi, I'm redoing my kitchen(DIY) and have the following questions about connecting equipment in a kitchen: Would it be notifiable to change a cooker connection unit to a FCU with a 3amp fuse? I want to connect a standalone gas cooker (only has a fan requiring power) and don't want to have to...
  13. 1

    server connections

    when we provide electrical connections to the server rack by industrial socket we need to remove the ELCB to avoid the trip , So , any body know why???
  14. P

    off peak meter connections

    when fitting a new off peak db for storage heaters. what is required by the suppliers to allow connection by them. this is on a tt system with a 17th edition db covering the on peak supply and an rcd db off peak .the last time i added an off peak supply was through a single rcd, 2 tier blocking...
  15. G

    3 phase over door heater switch connections

    Went to a job today, and was asked by the builder to re connect a 3 phase over door heater switch, which had been disconnected by others. The switch in question is a 4 gang switch, and only has 1 phase, so I am at a bit of loss of the connections, as there is only 1 phase at the switch, and 5...
  16. H

    Generator three phase connections / cables

    Hi, I have a 50kVA three phase generator. The installation is fascinating and I am interested in knowing what the electricians are taking into consideration when selecting the correct cable type. I dabble in low voltage electronics and circuitry and have a basic knowledge of the 17th Regs...
  17. stidge

    Shower shocks!!!!!!!

    Hi all, Just had a phone call from customer telling me they are getting minor shocks when in shower and touching the controller/head.It is not an electric shower.They have a dual RCd CU and apparently all earthing is up to date,Has anyone come across this before ? Any advice on where to start...
  18. J

    Help with fault finding - general questions please help

    Hi there i have got my trade test to do done my installation today and tomorrow i have my fault finding and testing&inspection to do, just have a few questions i want to ask a decent tradesman who understand faults quite good, im fine with testing and inspection but where it comes to fault...
  19. M

    Stardelta connections

    Am seeking for assistance on the above subject. What coukd be the problem when you swith on the start button the motor starts in star and when time for the delta comes the motor stops
  20. Sintra

    Erroneous connections

    Do any of you guys test for erroneous connections when you are doing your IR tests?

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