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concrete

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  1. N

    Cables under concrete base or under screed?

    The floor of the kitchen will be filled up with: 1) Concrete, on top of which will go 2) insulation with pipework for wet underfloor heating system, on top of which will go 3) screed. Can the armoured cable run under the concrete base or does it always need to go above concrete base and under...
  2. Marcus Vaughan

    Concrete Floor in Extension

    Well - I recently rewired a house and planned ahead for a proposed single story extension. The main house is now finished and occupied. Carpets - the lot. Cables are under a suspended timber floor in the kitchen and the plan was to extend these circuits (sockets and lights only) into this new...
  3. M

    Anyone use a concrete nailer?

    have been thinking of getting one of these, as things like fitting capping, conduit etc would be much easier/faster. I dont really know much about these, and am yet to find anyone else with one to try, so wondering if anyone has one, and what are they like? Do they consistantly bury the nail...
  4. B

    1st flats with concrete ceilings

    Looking at a job first fixing flats with concrete ceillings, to be lined with mf ceilling system. How do you guys support cables in this scenario? Just clip up to concrete, or some more elaborate solution? Tray seems kind of ott, but would be a good solution. Cheers
  5. MFS Electrical

    Soffit lights, only problem is soffit is concrete

    So was round giving a quote to install soffit lights on a house today no problem some nice IP rated downlights will do I thought, went round to see the job and to give a price and noticed the soffit is in fact made of concreteo_O anyone got any ideas of a fitting to use that won’t look daft? Saw...
  6. J

    casting down-lights into concrete (new build)

    Looking at a job tomorrow evening for a new 5 bed house +granny flat over a basement floor+ground. In my initial phone call to the client- down-lights are wanted in the basement concrete ceiling 'which will need to fit cowlings we've already cast into concrete' I am assuming they are...
  7. L

    Medium size shop. Full concrete construction etc .Basement with 2 fire exits.Fire /smoke alarms?

    As title ! Single entry ground front door. twin stairs to basement . Each side of basement (It was knocked into one years ago) has its own fire escape etc . what would be the Basic level of Fire/smoke detection equipment that"should be required" for each of the 2 floors ? Thanks
  8. T

    data cable buried direct in concrete

    I've been asked to look at a job (total shambles) they've given the other sparky the boot because of his poor workmanship. I've honestly never seen work so bad. one of the main issues is a load of floor boxes have been chased in, the data cabling has been buried direct in concrete, is there any...
  9. Pete999

    Pete's Videos Now that's how to drill a hole in concrete

    http://www.----------------------------/mediafile/100423440/Best-Practice-Guide-1-Issue-3-.pdf
  10. M

    Drilling holes through concrete slabs

    Hi All I have a domestic two storey house to wire with hollow concrete slabs on the first floor and I was considering drilling all the sockets etc down through the slabs to save the wall tracking. Does anyone know if this is permitted with building regs? Thanks
  11. R

    Swa in warehouse chased into concrete floor

    Hi, Had a look at a job today and there is an swa swinging from one side of the warehouse to the other providing power to machinery. They have had another electrician quote to chase the swa into the concrete base. I can't see how he can chase any deeper than enough to cover the swa. Where...
  12. B

    New metal roof on existing concrete garage

    Hello all, I need some advice please. We have a detached concrete sectional garage that is one of a semi detached pair with our neighbour. The garage has power (via SWA off a fused spur within the house with earthing provided back to the TN-C-S supply). One double socket and a light via a 3amp...
  13. Soulsurfer

    underfloor mats for carpet and under vinyl strip in ensuite?

    Hey all, looking into what I need to fit underfloor heat mats to an ensuite bathroom which is having some kind of vinyl strip flooring laid on top apparently with of course self levelling compound first on top of mat. Is Wedi board alright for under the mat insulation or use proper uf heat made...
  14. S

    Cable Duct install in Cement Bound Sand (CBS)

    Hi Has anyone had any experience of excavating to find HV underground cables in CBS backfill? I am being asked increasingly to use CBS (usually about 1:14 Cement/sand) for bedding and cover infill of cable ducts we install. Reason usually given is that apparently it helps with heat dissipation...
  15. L

    Underground HV cable & Communication separation distance

    Hi, Is anyone can suggest me, what is the separation distance between underground HV cable and Communication cable? An existing communication duct is found across the new HV cable route whilst new trench is dug for HV cable laying. Is there any reference or literature that mention about the...
  16. T

    Best automatic centre punch

    I am looking to get a decent auto punch. Have seen them costing over a £100 but aint gonna pay that. Just want something that really works. Any recommendations out there? I have bought a few of the £6-7 priced ones and they lose their punch randomly which is really annoying. I use it for marking...
  17. P

    Stud Detector recommendation

    Hi Guys My colleague and I are currently looking to purchase a new stud detector but at the moment are struggling to find one that will detect stud, and cables through plaster skim and concrete. Could anyone help with recommending a detector they use that will pick up stud, conduit and cables...
  18. HappyHippyDad

    Underfloor Heating On Concrete With Wooden Flooring?

    Hello all on the new forum :) (where's the full smiley page, I liked that!) I have been asked to quote for some underfloor heating. It is more of an after thought from the customer as I am due to wire up the new kitchen she thought she may as well have a quote for UFH, although she doesn't...
  19. rolyberkin

    Fixing SWA to gravel board and concrete fence posts?

    What are peoples views on fixing swa to concrete fence posts and gravel boards, the alternative is ripping up a perfectly footpath and garden to bury which seems a bit over the top?
  20. 1Justin

    Hard concrete block. Wall chaser or not?

    Just been to see a new build to quote on. 5 bed domestic, shell going up now. Solid concrete block walls throughout, with block & beam floors. Owner is not sure yet about plastering, I may get a dot/dab, which would be easier for me (albeit a bit crap for the owner). If it doesn't go that way...

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