cabling | Page 4

cabling

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  1. M

    RS485 Modbus cabling

    A question on RS485 Modbus cabling on electrical meters. We are progressively connecting the Modbus cable to 3Ph Ct meters which will be powered up as we go. The next point may have a short line to line or screen as it is a cut cable. Can anyone tell me if it is usually an issue for RS485 if...
  2. D

    Structured Data Cabling - Starting in the trade...

    Hi, I currently work in an office based role in the IT industry (4 years experience) and would like to make a career change. I have previously trained as an electrician around 5 years ago and enjoyed the practical side of the work but due to the job market being a bit dry, IT was the path I...
  3. R

    Cabling in wall cavity ?

    I am having a single story extension built and was wondering if it is acceptable to have the ring main cabling in the cavity to avoid having to channel out the walls ? Graham
  4. J

    Magic gel compound, sealing galv conduit boxes with swa cabling.

    Hi. I have recently completed a garden lighting installation comprising of the following. i have installed a 3 core 1.5 swa from the inside of the house from a db board backed up by a 6amp rcbo 30ma the to a one gang surface mounted switch, this then runs outside to a galv tee box swa...
  5. S

    regs for horizontal cabling

    In commercial electrical installation is it acceptable to run cables horizontally? We need to relocate existing sockets and add new to this circuit. Also if we can not achieve a depth of 50mm into wall does reg 522.6.101 apply if we use RCD's?
  6. P

    joist cabling routes

    Pretty simple question really, Is it ok to use existing holes in joists when running in the cables? Thanks Phill
  7. 0

    sky cabling and magic eye

    Hi getting sky installed on Saturday and I am wanting to have sky in the main bedroom and also free view in a second bedroom for a child If I run a satellite cable from the rf out on the sky+hd box into the loft and use a amp and then run a satellite cable down to the main bedroom wire a magic...
  8. S

    Structured and Single cabling

    Anyone got an idea what structured and single cabling is??? I have heard of cable structuring in networking but not on electrics!
  9. D

    bt cabling

    Just come from a job : - they have had two phone lines installed , both owned by bt but one is a bt line. one is sky ( line rented off bt) A problem arose with the one line . ( the sky one). and the bloke had a go at it himself and cocked the pairs up !!! :-( the line in is a 4 core cable...
  10. S

    Voltage Drop on cabling

    Good morning All, Ive been asked to work out the potential volt drop on 12 metres of 10mm x 7 core SWA powering a 45kW (60hp) motor. Just to check my findings as below, please could someone confirm whether I have done it right. 45kW - 80amp FLC as using Star Delta Starter multiply by...
  11. Tuttle

    Band II cabling crossing over Band I cabling

    I've got Band I (CAT5e Ethernet and security alarm cables) and Band II (T&E cables for lights and ring mains) lying on top of thermal/acoustic insulation under a floor. I've keep them well separated, much more than 50mm, but in several places the T&E cables cross the ELV cables, and at the...
  12. M

    Hdmi switch

    Hi all, does anyone know of a good hdmi switch for 4 hdmi devices at full 1080 automatically switching, i'm putting an led on the wall and don't really want 4 hdmi cables going don the wall to where the devices will be
  13. Spoon

    Prepare now ‘to avoid Euro cabling issues’

    I thought that this article might be interesting to some of you. Prepare now
  14. G

    LAN Cabling - Graham Hinton

    Hi there, I'm new to this forum. I'm Graham Hinton Director of Bridge Networks Ltd a data cabling company that has been established since 1996....we are often called in to terminate and test electricians data cabling. We can offer this service to anyone....we will give test resulkts...
  15. M

    Advice needed on consolidating av and coax cabling alongside five 240 volt main lines

    Hi, I need to rewire our Sky Box and CCTV System and I wish to use the existing conduit which currently houses five 240 volt main lines running for about 30 feet. I'll be hoping to consolidate in this same conduit Ethernet cabling x 2, RJ-11 x 1, AV Cable x 2 and Sky Coax x 2. I am concerned...
  16. E

    Cabling from company isolator/fuse to consumer unit

    I'm currently working on an old flat where the flat is about 15 metres from the company fuse. What size cable should be used because the one I'm looking at is 16 mm un-armoured with a 10 mm earth and I've been told that it needs to be 25mm 3 core armoured. Is that right?
  17. D

    Garden Cabling

    Hello - I'm getting a garden wired up. 12V LEDs are preferred. (x20!) with a 10w spotlight at end. Garden is 35m long so a ring of 75m is the plan, with 20 x 3W LED uplighters pretty evenly spaced and a 10w floodlamp at the end (35m cable run) I'm wondering if the voltage drop would be...
  18. M

    Structured Cabling

    Hi All, I currently still work on an IT Support Helpdesk as I haven't been able to make the move to this industry but also it's not exactly a great time. I have been thinking about maybe trying to work for companies doing structured IT / Data cabling as a potential specialisation instead of...
  19. P

    Lead cabling

    I am having a terraced house (circa 1900 build) renovated. Builder has told me that he has found lead cabling after removing door frame. Is lead cabling legal and safe? I will need an electrical certificate as I am going to rent the house out. My main priority is safety.
  20. D

    Cabling for outside flood light with PIR

    Hi I'm installing some new floodlights and have noticed that the JB on the fitting itself will not accommodate an armoured gland but has a compression bush on it suitable for flex. The only way I see of wiring it is to run armoured to a small JB (prob 100 x 100m) and come from there with some...

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