SWA/SY cable in a fibre duct

[steve2023]

OK. I can already feel the eyes rolling

I am working in a yard where we are having trouble with vandalism.
There is absolutely no way of getting a cable (easily) down the to front gate, as the perimeter is hedging and the car park is concreted entirely.

The ONLY duct to the gate from the building houses a pair of Fibre optic broadband cables. I think it's a flexible 50mm duct and it has a draw rope.

This is a no no I realise. but kinda out of ideas. Cutting up the car park isn't going to happen.

I could in theory, just run an external cat6e down there and put up a POE camera. But ideally we want to put up a couple LED floods.

The mains I don't believe will interfere with the fibre, but I am sure this will be massively frowned upon.

Shall I get my coat?

edit...

The other option is to go the long way around, but that would mean some kind of trunking mounted to a fence like the one below.
Not an easy install, and the fence 'could' be damaged by reversing cars, so I imagine it will need mechanical protection from that possible event.
Can you install Galv trunking outside successfully?

Reason for trunking is there is talk of future car chargers, so the ability to run multiple cables out would be helpful.

 

[nicebutdim]

Lot's of unknowns where the duct is concerned. 2" isn't a great start, but is the run relatively short and straight? Was the rope pulled in alongside fibre or was it pre-existing, with a good chance of it being wrapped around the fibre several times? It could be all of 5 minutes work or a world of unnecessary hassle, expense and recrimination.

 

[Other_Tucker]

Fibre in buried ducts should be CST if not armored and will be almost indestructible. They're about 10mm diameter and blue or black. If it's biro size or smaller and rubbery then I wouldn't recommend it, I personally would but then I can splice fibres

 

[Vortigern]

Sounds like a nice scrap metal haul for someone, 60m of copper and steel. When's it going up.....?

 

[davesparks]

Who owns the duct and the fibre cables? Are they privately owned by the yard or do they belong to a supplier?

 

[Electro-tech]

If you need Ip rated trunking, probably cost a Le Grand.

 

[steve2023]

Hey all

My thoughts then.....

Fibre is the 10mm+ protected stuff. Belongs to the fibre company (but are they gonna care?)... New duct, dead straight. Pull rope probably put in at the same time as the duct.
Yes, likely to be wrapped around the fibre, but careful pulling might yeild results.
Only issue is the duct heads outside the property, I would have to dig down in the soil by the perimeter (I know exactly where it is) and somehow break into it without compromising it. Difficult to do. Don't want the duct filling with water.

Conduit. Bit of a faff to be honest. No fixings except on the posts (the middle verticals are angled galv). I also would need to set around each post as they stick out further.

Tray. I think this might be the way forward. I give us the ability to add SWA at a later date for car chargers etc.
Metal tiewraps and place it at the bottom of the fence (about 12" up). Reversing cars should be OK at that height.
it's a very high fence and we have not had people in the yard yet, just outside (throwing stuff into the yard and fly tipping/drug dealing).

If they want to steal it, they will.