Services in same trench

manufan16

Hi all,

What are the thoughts out there regarding mixing services in the same trench?

i.e blue water main, red ESB duct, etc

Thanks

Poor Uncle Tom

Would you run an ESB cable along a river bed?

manufan16

it would depend on whether the river was ducted or not :-)

on a serious note of course it does not make sense to do this however do you know if there are specific regs or trench laying guidelines I could refer to?

archtech

There is guidance alright. The publication Site Deveopment Works For Residential Developments has or had a diagram with dimensions of separation distances for the various services. I don't have a copy to hand at the moment but I will look in the morning. If I recall correctly there's also a diagram in the homebond manual

JD6910

i will be doing a trench shortly with a water main and an electrical cable to electric gates in the one trench. Was going to put in armoured cable with no ducting and put watermain into the same trench - any issues i wonder???????

manufan16

Thanks archtech I found that PDF online.

It's always easier when you know what your looking for!

Here is the link JD6910

http://www.environ.ie/en/Publications/DevelopmentandHousing/Housing/FileDownLoad,2451,en.pdf

http://www.environ.ie/en/Publications/DevelopmentandHousing/Housing/FileDownLoad,2452,en.pdf

sydthebeat

the whole pdf is split in two... so you need two links

engineermike

Also you should refer to the ETCI regs for buried cabling / depths / etc
Bord gais technical guidance etc.
Where it can be avoided it should be.

JD6910

Poor Uncle Tom wrote: »

Would you run an ESB cable along a river bed?

sure the electrical interconnector from ireland to the Uk is along the irish sea bed!!!!!!!!!!!!!!!!!!!!!:D:D:D