Loading Cantenary wire?

[Ross1]

Hi Guys, I`ve got 2 x 3core 6mm SWA cables to run overhead from a Barn to the chimmney of house and the run is 20m.

Never done this before, do you think this can work and how? I`m concerned about the weight

 

[telectrix]

a good catenary should hold it, but it may pull the chimney down in a fair wind.

 

[Ross1]

a good catenary should hold it, but it may pull the chimney down in a fair wind.

Thats what I`m worried about (scratchin me head on this one and starting it tmrw)

 

[telectrix]

no chance of running underground?

 

[Ross1]

no chance of running underground?

absolutley not, customer been sold a big solar system and told by surveyor "overhead not a problem". Muggins here got to sort it out, customer is already fed up after coughin up lots of dosh

 

[Knobhead]

You’re starting this tomorrow?

It’s a wind up it’s got to be. Mind you looking at some of your posts……

 

[Ross1]

I think raw bolts for the hook plate on the chimmney at least or anyone got any better suggestions

 

[Ross1]

You’re starting this tomorrow?

It’s a wind up it’s got to be. Mind you looking at some of your posts……

Not a wind up!

 

[Marvo]

....told by surveyor "overhead not a problem"

When you say surveyor this suggests a survey (which I'm assuming would include a risk assessment) has already been done. What was in the survey results?

 

[Ross1]

When you say surveyor this suggests a survey (which I'm assuming would include a risk assessment) has already been done. What was in the survey results?

"SURVEYOR" wrong choice of words, salesman or whatever you want to call it. Lets just say he`s not clued up when it comes to the electrical side of things

 

[Silly Sausage]

I think raw bolts for the hook plate on the chimmney at least or anyone got any better suggestions

I wouldn't just fix into the stack, I'd try and get something around the base, along the lines of a TV aerial fixing, and attach the cantenary to that.

 

[Marvo]

With 2 x 20meter lengths of 6mm x 3 core SWA I would get a structural engineer in to sign off a satisfactory spec. There's a very good chance a chimney won't support the load.

 

[Richard]

Have you ever tried lifting half a coil of 6mm SWA!!! Good luck trying to fix that! As someone has said, i'b be looking at getting something around the base of the stack as least.

Rich

 

[Ross1]

With 2 x 20meter lengths of 6mm x 3 core SWA I would get a structural engineer in to sign off a satisfactory spec. There's a very good chance a chimney won't support the load.

I agree, not going ahead with it, its very exposed and a strong wind will put to much load on the chimmney.

Thanks guys

 

[Silly Sausage]

I agree, not going ahead with it, its very exposed and a strong wind will put to much load on the chimmney.

Thanks guys

You wouldn't need SWA overhead, use something lighter and make permanent joints to SWA at the ends on the buildings.

 

[Ross1]

You wouldn't need SWA overhead, use something lighter and make permanent joints to SWA at the ends on the buildings.

Did cross my mind but cant figure out what cable to use.

 

[Silly Sausage]

Did cross my mind but cant figure out what cable to use.

Something like this...
http://www.eland.co.uk/ga/electricalcable/rubberflexiblecable/cable24/h07rn-f-cable.html?_$ja=kw:H07RN-F|cgn:H07RN-F+Cables|cgid:998099822|tsid:7168|cn:UK+-+100%+Uptime|cid:25257692|lid:340591354|mt:Broad|nw:search|crid:5640522722&gclid=CLPHz9i6h60CFWIntAodRBTdlg

 

[Ross1]

I dread to think where this will end up.
Ross it’s obvious you don’t know what you’re doing, get this wrong and you’ve a house minus it’s chimney to sort out.
Out of interest how do you intend to get the centenary and cables in to place? Hope you’ve got a cherry picker in your van.

Yep cherry picker is nice and snug in van cause I dont fancy using the mobile platform on site and the scafold on the barn end, if the chimmney comes down it wont be a problem, got a mate who`s a brickie`s labourer.

 

[Engineer54]

Yep cherry picker is nice and snug in van cause I dont fancy using the mobile platform on site and the scafold on the barn end, if the chimmney comes down it wont be a problem, got a mate who`s a brickie`s labourer.

You better hope he knows how to repair roofs too, as there is going to be a gaping hole in it!!! Oh, How about ceiling boards too?? Do you have any idea how much, just the top of a chimney stack weighs?? I don't think you do!!! lol!!!