Trees and Swa

[Steve Riley]

Evening,

I'm finally getting round to replacing the cable to my workshop/garage.

The most direct (best) route passes close to a large mature spruce, 40-50 feet high and two feet or so diam. at breast height (guess). Does anyone have a reference for how close to the tree I can trench the cable? 25mm swa in duct 600mm down, run about 35m. I'm worried about damaging the tree, and also damaging the cable if the tree blows down!

I would rather not employ an arborist, they are expensive and very conservative in my experience.

It is on my land, I will notify, and am not going to ask about earthing, sorry!

regards, Steve.

 

[Marvo]

Can't you just make a semi-circular diversion around the tree at a sensible distance. I know it will add to the cable length but it's never an ideal world. I don't know much about trees as such but I'd just give it a 4 or 5 meter berth.

 

[Des 56]

Can't you just make a semi-circular diversion around the tree at a sensible distance. I know it will add to the cable length but it's never an ideal world. E]I don't know much about trees as such but I'd just give it a 4 or 5 meter berth.[/QUOT

C'mon now Marvo.as you should know,its a minimum plank and a half from the stump

 

[ipf]

Can't you just make a semi-circular diversion around the tree at a sensible distance. I know it will add to the cable length but it's never an ideal world. E]I don't know much about trees as such but I'd just give it a 4 or 5 meter berth.[/QUOT

C'mon now Marvo.as you should know,its a minimum plank and a half from the stump

Come on stumpy, it's a trunk.......or no need to worry about the root:gettree:

 

[Marvo]

Most of the trees in Africa only grow to a few feet in height. If they're in the way of a cable run we just pick them up and move them

 

[HandySparks]

Think I'd have an exploratory dig before ordering the cable.

 

[dan86]

why 25mm outa curiosity. what load are we talking in this workshop/ garage

 

[Zebra Stripe]

Take a look at the top of the tree so to speak, the root system will be a mirror image almost I think, although that may have been a dream...

 

[Des 56]

Take a look at the top of the tree so to speak, the root system will be a mirror image almost I think, although that may have been a dream...

Has someone been smoking Mangroves by any chance

 

[NJG28]

Take a look at the top of the tree so to speak, the root system will be a mirror image almost I think, although that may have been a dream...

Has someone been smoking Mangroves by any chance

Not too far off the mark. I had to get arbourist at insistence of Planning Officer for PP. He did calculate root system with reference to the size of the tree canopy

 

[Knobhead]

Just give the tree a wide berth. They are a menace! Cut them all down.

I know to my cost the damage the tree roots can do.

A PILCSWA went down with a high resistant earth fault. Weeks of testing, and I still couldn’t find the fault.

Desperate measured were needed. The feeder was fused at 450A, I put something a bit bigger in 1½ X ½ inch copper bars don’t blow.
But it had a 2500A ACB to back it up, so it was OK.

One of the fitters was outside the substation when I closed the switch, according to him the tree lifted a couple of foot and then caught fire. The tree roots had broken a joint.

Found the fault!

 

[Badged01]

Desperate measured were needed.

The old techniques are still the best (and most fun!), shame about these H&S bods wanting to stop everything .....

 

[ruston]

Take a look at the top of the tree so to speak, the root system will be a mirror image almost I think, although that may have been a dream...

You are correct , the root system does follow the pattern of the canopy . It's natures way of stopping them falling over.

 

[telectrix]

You are correct , the root system does follow the pattern of the canopy . It's natures way of stopping them falling over.

the light dawns. that's why we have feet. to stop us falling over!. not a very good design as regards us humans, but then again, trees don't drink and fall over.

 

[Spoon]

the light dawns. that's why we have feet. to stop us falling over!. not a very good design as regards us humans, but then again, trees don't drink and fall over.

You could always have your legs removed... then you could be like a Weebles Wobble and never fall over... I'm brainy me....