trench

trench

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  1. C

    Advice on trench

    Hello Just looking for some advice on a rough cost on having a trench dug for cabling in an ev charger. The run is only around 10 metres long and is a mixture of concrete tarmac and soft ground. From what I've read it should be 600mm and then the ducting in. Most recent quote was over £3000...
  2. maccaandy

    Cable in concrete trench corroded

    Hi, A few years ago I had some cables run from my fuse board to my kitchen. The cables were laid inside my house through the concrete base. There was a long trench dug through the house, and the cables laid into it. Now, a few years on, I've had a qualified electrician confirm that the cables...
  3. J

    Cable Trench with 2 Voltage Levels (800Vac and 34.5kVac)

    Hello, We have a project where there are sections where 34.5kVac cables will be laid below 800Vac cables. Conductors are Aluminum. Any chance anyone knows a standard which states the min. allowable separation distance when cables of different operating voltage levels are laid in the same...
  4. S

    To bury an earth conductor in a trench under the ducts ?

    Just a bit of a muse at the moment, work won't happen for a while, though I do already have the ducting. We have (what's left of - it was rotten, the storms just finished it off) a greenhouse which we're thinking of replacing with a garden room, man cave, workshop, whatever you want to call it -...
  5. markythesparky

    Pricing for trench work

    Hi guys. We have been asked to price for some floodlighting and this will involve a substantial amount of trench work through a field and then six larger holes for columns. How would you guys price this and the other ground work involved in the sand blinding for the cables and concreting for the...
  6. A

    No LB when transitioning pvc up from trench into subpanel through wall

    I have an electrician installing new circuit from my existing panel to a new subpanel in my detached garage. The subpanel is in the inside wall of the garage. The installation is underground with 1.5" conduit. Instead of using an LB on the outside wall of the garage, the electrician heated a...
  7. stummish

    Final circuit & DNO cable in same trench

    Hi all bright sparks, I've had a question from a client I couldn't answer on the spot. I've done some google research but can't find an answer to this; Is there any reason the DNO cable and a final circuit be installed in the same trench? DNO cable will be in a duct, client wants the SWA...
  8. HandySparks

    Trench for outside light supply

    I'm quoting to install an outside light at some distance from the nearest building. About 16m of the run will be underground, mostly under lawn, with about 2m of that under paving slabs, which will have to be lifted and re-laid. I am proposing a 500mm deep trench with ducting and warning tape...
  9. S

    Trench Depth for underground cable...

    Running a supply from the house to the garage, just about to dig the trench for the ducting but wondered what depth it has to be? The cable will cross underneath a slabbed path before going about 2 metres max across (under!) the garden.
  10. C

    Cost of digging a trench for cable

    Wasn't really sure where to put this! I need to get a trench in for a cable, 13 metres will be cutting through tarmac and approx 30m just soil. I'm weighing up whether to hire some kit from TP and do it all oursleves (2 of us) or get a company in. Problem is most of the companies I've seen...
  11. C

    Ok to share a trench with other services?

    On a job we're going to need to bring our SWA underground for part of the install, and the main contractor is digging one big trench hoping to put gas, our SWA and mains water in. Not something I've done before sharing the trench with other services, can anyone see a problem with this other than...

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