Burying a cable

[Norn Iron]

I have to re direct a cable that was clipped to a fence that is now removed only other option is to bury it does this need to be inside a duct and at what depth?? It's a 6mm hi tuff for a hot tub. Looking forward to some helpful answers

Thanks

 

[Spazz]

It is always better to put it into some ducting mainly for making life easier if you ever have to replace it. You need to be at a depth of about 400mm deep.

Based on the question you are asking I take your not an electrician - this is a notifiable job meaning that you either have to get an electrician in to install it for you or pay your council around the £120 mark to come out and check it. A job like this may be cheaper to get an electrician in, if you want to cut costs then did the hole yourself and buy the ducting and even run a rope into the duct to make pulling the cable through that much easier. This could only cost a few quid - only an hours work if you prep it all first.

Also make sure you have RCD protection.

Post your area and Im sure someone will be happy to quote for you - or PM me

 

[Norn Iron]

I am an electrician just used to doing commercial and industrial fit outs it's just because some of the cable is just buried in the ground and covered over in soil by whoever installed this in the 1st place I just need to re-direct it

 

[Spazz]

Can you notify it - thinking you are industrial????

Check 17th Regs - but Im sure its 400mm deep and I always use ducting - also Yellow tape

 

[Engineer54]

The recommended burial depth is 600mm (especially in gardens where prone to digging) and YES, you will need to run that type of cable in a duct i'm afraid!!

 

[timbobelfast]

Judging by the OP's name he is in Northern Ireland were thank fully 'Part P' does not exsist so no need to worry about notifying.

 

[Octopus]

Why is it notifiable if its replacing a over ground cable?

 

[Spazz]

From my understanding its altering a circuit within a special location - outside.
Therefore its notifiable - burying the cable alters the CCC of the cable.

 

[Brightspark2]

Check 17th Regs - but Im sure its 400mm deep and I always use ducting

Just deep enough as to prevent danger, it doesnt actually mention depth although as E54 says 600mm is recommended...

 

[yellowvanman]

Where does it say 600mm?

You'll find its up to the installer to decide what depth is suitable.

 

[D80]

If its in Northern Ireland it doesn't need notified I'd not go burying hi tuff without a duct, probably worth looking at changing it to SWA.

 

[Engineer54]

Where does it say 600mm?

You'll find its up to the installer to decide what depth is suitable.

That's all right then, let's go for a 100mm!! ....Gesus!!

600mm has been the standard burial depth for as long as i've been in the industry!! 700mm for MV.

Check out the DNO's stipulated burial depths for gardens and areas that are prone to disturbance/digging/cultivating.

 

[yellowvanman]

Let's just agree to disagree!

We've been over this before. We don't know the risks associated with this run.

As for dno depths, builder dug up dno cable couple of weeks ago which was only at a depth of about 200mm

 

[Octopus]

Where does it say 600mm?

You'll find its up to the installer to decide what depth is suitable.

Any one burying cable under a garden less than 600mm depth needs their head seen to. One of the guidance notes lists recommended depths anmd from memory 600mm is for garden areas like borders.

 

[Octopus]

From my understanding its altering a circuit within a special location - outside.
Therefore its notifiable - burying the cable alters the CCC of the cable.

I'd say it maintenance and therefore not notifiable as its not a new circuit.