cabling | Page 5

cabling

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  1. B

    structured cabling NVQ's

    Hi guys, I know this is the electrical NVQ section but don’t know where else to get any info about the NVQ level 3 in structured cabling. Is there any NVQ Assessor out there that can help? I done a NVQ level 2 structured cabling last year but would like to do the level 3. I have been told by...
  2. G

    Networking courses

    Hi, i was wondering if anybody could suggest any computer networking courses. i am a fully qualified electrician and would like to be able to offer networking as part of my service. Thanks for any help or advice
  3. Goody

    Estimated age for this sort of cabling?

    Hi, What could be age of cabling in a domestic environment if they are single strands for live & neutral with rubber insulation and non sheathed bare for the earth? Thanks in advance.
  4. S

    Pyro Cabling?

    Hi guys, i did some work on a flat just over a year ago and tested and did a PIR which i passed as good condition after the remedial work! Tenants in the flat having issue with cooker circuit in which the property maintenance guy came to have a look at, to which he said needs a full rewire and...
  5. P

    Suitable Wiring System For Light Circuits

    hi guys, just for my assignment for college could you point me in the right direction. Select a suitable wiring system for the lighting circuits within the electrical switch room and stores? now they like 50 twin floresent 1800 x 2x70w lighting on this circuit. thanks guys! dont know what i...
  6. D

    DC cabling size

    A couple of other threads have prompted me to ask: what is the correct DC cable size (preferably derived from SMA's Sunny Design) for an installation of Canadian Solar 190s (two strings, one of 14 and the other of seven) and an SMA Suny Boy 4000TL with around 16 metres between the two?
  7. C

    Best cabling solution for External Socket

    Hi all I need to run some cabling for an external socket in a garden. The cabling will be run around the walls and will not be buried. The cable will need to pass throught an 18" solid wall and there will be a number of turns before the final destincation. What do you think is the best...
  8. D

    DC cabling protection

    Is there any requirement for DC cabling to be protected - as it passes through a brick wall - where it bends and enters/leaves a brick wall - within a garage between where it emerges from a brick wall and enters the inverter?
  9. S

    Network Cabling

    hello guys, any of you have dealings with cat6 terminations(RJ-45) and what sort of labelling do you/ have you used? is the cat5 plug ok to use or do you need the cat6 modular units? does it make that much difference?? regards
  10. S

    DC Array cabling

    We are designing an install whereby the DC string cables need to come back from the middle of a garden to the property. We plan to install 6mm 4 core SWA cable to carry the load (2 strings) and wonder whether the armouring of this SWA cable needs to be earthed as in an ac application - the Regs...
  11. infinity

    dc cabling to downstairs

    Ive been asked to do some jobs next week, they want the inverters placed adjacent the cu, is this quite common practice? i thought they would go in the loft space? I assume to reduce the volt drop. Am i ok to pass the dc down through ceiling in pvc conduit? also one job is 16 panels 1 string...
  12. M

    Looking for engs who can demonstrate experience working on live DC in datacentres

    Hi one and all - 1st post from me, and it's something of an appeal; Although our company background is in data cabling - we started off specilaising in fibre - we have one big customer who has been instrumental in our development across the board, to the point where after many years, we're...
  13. H

    How to quick connect pv panels to controller

    Hi all.I need some advice from the pros. I want to install two[2x 100W] semi-flexible monocrystalline pv-panels stitched into the bimini of my boat,using waterproof[IP68?] quick connect/disconnect couplings and do not want to have to buy expensive tools for a one of job. The panels come...
  14. A

    Fire resistant (Firetuf) DC cabling

    Apparently this is not available. What is the solution when the installation is in a building were the Fire Officer calls for fire resistant cables? A4L
  15. K

    DC cabling

    Hi All, Need some advice please as I'm new to PV and going for my MCS accreditation now. I'm installing on my own property and because of the position of the house, the best position to put the panels is on the garage roof. This is a separate building to the house with the CCU on the other side...
  16. J

    Drilling holes in new joist for cabling

    Can someone please help. I am running some cables in our new exstension. The joist are approx 4.2m long, am i right in thinking that i have to drill my holes between 0.25m and 1.68m on either side. Many Thanks
  17. D

    DC 24V - Cabling Sizing -

    Dear all, I need to supply DC 24V power to long distance. The required power is low up to 9W. What is the maximum allowable voltage drop?
  18. R

    Installing boxes (and cabling) in Bellrock Plaster walls

    Anyone had any experience with Bellrock Plaster Partitions ? Seemed to be popular with John Lawrence (Glasgow) builders in the mid-late 1950s but I can't find may other examples of them. The entire wall is constructed from a sort of plaster honeycomb (approx 6" wide hexagons made of solid...
  19. G

    new equipment existing cabling

    hi we are installing new parking barriers on existing colored SWA (RED YELLOW BLUE). Which should be sleeved (RED GREEN/YELLOW BLACK)? Do we sleeve the cores to the new colors (BROWN GREEN/YELLOW BLUE) or leave them as the old colors. As they will be the old colors in the DB? if we have to...
  20. S

    PV cabling and earth

    I am just completing my first install for my forthcoming MCS assessment. It is a 690w system. 1. Am I ok to run the cable on the AC side of the inverter in 2.5mm cable (as it is only 690w system)? 2. I need to earth the array as it can be touched from a velux window. What cable size for...

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