Installing overhead cable

[biggles]

Need to rig up a power supply between two sheds, approximately 50m apart , 3phase 10mm câble required, it HAS to go in the air , no other option, I will install a steel wire rope between the buildings to Hang it from, what cable should I use and would you just cable tie it to the wire rope. This is a permanente installation, any advice gratefully accepted, cheers

 

[tomlad]

Ivd had a few over heads , i hate them all

 

[Blue.]

Use 4mm stainless wire rope and get it tight.

 

[milkloss]

Don’t use cable ties, they go brittle and when one goes the others will follow shortly after with the extra weight. Don’t know what else to recommend though sorry.

 

[Sharpy]

Could you spiral the cable round the rope?

 

[biggles]

Have got some 6mm stainless wire rope ready for the job and have secured substantial plates to both buildings ready to hang from, could possibly wrap the cable round the wire but would be difficult, I was worried able the cable ties going brittle too, thought there might be a proper solution that the pros use, what type of cable should be used? Cheers

 

[Blue.]

One we used to have was held together with a copper clip,like a bird ring.

 

[Batty]

Need to rig up a power supply between two sheds, approximately 50m apart , 3phase 10mm câble required, it HAS to go in the air , no other option, I will install a steel wire rope between the buildings to Hang it from, what cable should I use and would you just cable tie it to the wire rope. This is a permanente installation, any advice gratefully accepted, cheers

Jubilee clips?

 

[tomlad]

Id wondered about stainless jublees
Or the cable clamps big like a exhaust clamp ,u bolt nuts dun up loose ??

 

[bitwrx]

Have got some 6mm stainless wire rope ready for the job and have secured substantial plates to both buildings ready to hang from, could possibly wrap the cable round the wire but would be difficult, I was worried able the cable ties going brittle too, thought there might be a proper solution that the pros use, what type of cable should be used? Cheers

An electrician mate of mine gave me a pack of stainless cable ties a while back. He says they're used more and more nowadays on heat pump/solar installations that have a lot of cabling outdoors.

Stainless Steel Cable Ties | CEF

 

[Lincs Lass]

Sky hooks

 

[br jones]

An electrician mate of mine gave me a pack of stainless cable ties a while back. He says they're used more and more nowadays on heat pump/solar installations that have a lot of cabling outdoors.

Stainless Steel Cable Ties | CEF

That ^^^^^^^^^^^^^ is the answer

 

[Lincs Lass]

50m is a fair stretch,,you would have to get it twice as high in the middle as the tallest piece of machinery which is as much as mains cables on field poles,then remember wind sway on the anchor points , the other thing is cable size ,,is that 10mm per wire if so,that's a big heavy cable

 

[defender]

Cable ties will be fine as long as they are heavy enough , put a covering of tape to keep the sunlight off them as that is what makes them brittle
Bulldog grips another option

 

[biggles]

Ok then so should I cable tie the cable tight, or leave loose for expansion/contraction? Worried about chafing if left loose? Would armoured cable be the best to use or is there a better preference for overhead? Cheers

 

[Blue.]

Ok then so should I cable tie the cable tight, or leave loose for expansion/contraction? Worried about chafing if left loose? Would armoured cable be the best to use or is there a better preference for overhead? Cheers

I cable tied one a few years back and thought I’ll leave them slack,they all ended up at one endthen they all started to go brittle
You can get control cable that’s got a wound sheath that would do but personally I’d use armoured.

I’ve found the clips I had on another overhead once.

 

[Gadget]

I can’t remember where we got ours from but this is the proper thing for the job, the strap bit is leather or nylon. We have some leather ones that have been up over 35yrs.
I googled “leather cantenary wire hangers to find this.

 

[Gadget]

Catenary

 

[foxbox]

What sort of building are you attached to, if it's brickwork does it risk the weight of the rope and cable over a 50m span risk pulling the gable end out?!

 

[Bullring]

What about the metal potato bag ties, as long as you don’t cut through the cables.