Swa in a channel/chase.

[Sandersman]

I’m putting a new DB in the in-laws cabin. It will be supplied from the garage DB (which was installed with the extra provision for the cabin).
Father in law doesn’t want the supply cable (SWA) in the air or on the ground. My solution was to run the SWA in galv conduit in a chase in the concrete slab that the cabin sits on, the gap from garage to cabin is only about 6-800mm, so burying cable to 600mm doesn’t seem practical.
The conduit would help with extra mechanical protection as he’s likely to walk between garage and cabin to store wood (hence not wanting the cable in the air), and cutting a channel means that the surface is flush/less of a trip hazard.
Is this acceptable? I won’t be filling over the conduit so it will remain on the surface, unburied and visible.
Cheers

 

[Dustydazzler]

Why the conduit..?

just lay the swa cable in the groove

 

[Sandersman]

Why the conduit..?

just lay the swa cable in the groove

Just a bit of extra mechanical protection. Sitting in a channel, I’d be worried about abrasion from any grit or stones that make their way in there. A bit belt and braces I know. Can’t hurt.

 

[Dustydazzler]

If you are worried about dirt / occasional grit , just use kopex plastic tube

you really don’t need to put galv in the ground

 

[Taylortwocities]

The cable innerds are wrapped in steel. This is earthed. No further protection is necessary.

 

[Sandersman]

The necessity of the conduit is one thing, but is dropping cable into a channel acceptable? I can’t see why it wouldn’t be, but just figured it was worth checking.

 

[Taylortwocities]

It’s fine. SWA is designed for such an application.

 

[Dustydazzler]

So long as it’s not a trip hazard then go for it

 

[telectrix]

galv. conduit will eventually rust, use plastic conduit, even some drainpipe would do.

 

[Dustydazzler]

galv. conduit will eventually rust, use plastic conduit, even some drainpipe would do.

a length of guttering would be even better , you could lift it off every 10 years for your routine Eicr inspection ?

 

[Pete999]

I’m putting a new DB in the in-laws cabin. It will be supplied from the garage DB (which was installed with the extra provision for the cabin).
Father in law doesn’t want the supply cable (SWA) in the air or on the ground. My solution was to run the SWA in galv conduit in a chase in the concrete slab that the cabin sits on, the gap from garage to cabin is only about 6-800mm, so burying cable to 600mm doesn’t seem practical.
The conduit would help with extra mechanical protection as he’s likely to walk between garage and cabin to store wood (hence not wanting the cable in the air), and cutting a channel means that the surface is flush/less of a trip hazard.
Is this acceptable? I won’t be filling over the conduit so it will remain on the surface, unburied and visible.
Cheers

Why Conduit ? no need for it

 

[Sandersman]

Cheers for the replies, as long as I won’t cause issues by laying the cable in a chased out groove I’ll go for that.

 

[Dave OCD]

Just fill the 'chase' in with some concrete when done and there will be no issues at all.

 

[telectrix]

Cheers for the replies, as long as I won’t cause issues by laying the cable in a chased out groove I’ll go for that.

you'll still get grit trodden onto it. best in just a bit of 1¼ plastic waste pipe.