High Tensile Electric Parts and Design Check

[greybeard]

Depends on species I suppose. My fences have to be tight and hold the animals (brahma influenced full sized cattle) whether the power to the energizer is on or not.
Liability risks alone in my part of the world requires significant fences, especially in perimeter fencing. I can absorb loss of a $1300 animal, but can't a 1/2 million $ lawsuit if one gets out on the highway and a vehicle hits it if power goes out or if energizer simply decides it's pulsed long enough.

 

[dejavoodoo114]

i also use their G2 and fiberglass posts

My posts are 4x6 solid oak. Fiberglass is certainly not going to work. For what we want we need strength on top of electric.

The porcelain ones have to be threaded and draw ALL the wire through them. The plastic ring insulators you may pull out the wire and slot it onto the insulator by the convenient slit in the side.

There is no need to use strainers, the fence uses electricity to keep the animals in not the strength of the fence. You do not need to be able to play a guitar solo on the fence. Hand tight is plenty.

High strain wire is difficult to use, 7 strand wire is far easier to use.

These Doughnut corner insulators work very well otherwise simply us a ring insulator and no the wire does not pop off.

The rule for electric fencing is to Keep it Simple, it is really not rocket science.

I checked both those things out. I don't quite understand the 7 strand wire. What is the difference between that and High tensile? I most certainly will have high strain on my fencing, is that capable of handling heavy tension? Also, because of the high tension on the lines, those corner insulators would not work for us.

 

[dejavoodoo114]

@greybeard, what do you think? Technically I still have a large perimeter fence to finish for the Bison. There is another ranch here that has bison in 5 strands of barb wire. I keep getting told I am going overboard with the high tensile electric...

On a good note, my fence parts came in yesterday and I am looking forward to trying to get this fence finished!

 

[dejavoodoo114]

I just discovered google earth pro!!!! One of the vets coming out to help us finish our fence said that he used it to figure out perimeters and acreage approximation. SOOOO much easier than guessing! Apparently, this little area we are fencing in is around 2.6 acres with 1,000 foot perimeter. Now I actually know how many spools to buy. I can't believe I didn't know about this for our other fences. Heck, I would have finished this fence a few years ago if I would have known it would only take two spools!

 

[Bruce]

You can do it with the Google area calculator as well:
https://www.daftlogic.com/projects-google-maps-area-calculator-tool.htm

 

[greybeard]

I checked both those things out. I don't quite understand the 7 strand wire. What is the difference between that and High tensile? I most certainly will have high strain on my fencing, is that capable of handling heavy tension?

Other than the physical appearance, the primary difference is the amt of carbon in the wire.
HT has more carbon than MT or low tensile wire.
The 7 strand he's linked to is what we in N. America call cable or wire rope. It's a single strand, but is made of 7 individual strands twisted together.
According to the specs on it, it is not (cannot be) stretched tight.
Medium-tensile wire has a yield point and beyond that it stretches plasticity under tension (Hooke's Law). This point is reached before the wire breaks so that when highly strained in a fence it will not retain its tension over long periods and will stretch. It therefore should not be tensioned to the stage where a guitar solo may be played on it and the wire requires more support stakes and posts to prevent it sagging.
I have no idea how much it weighs/linear ft but is advertised as having a diameter of 1.5mm (1/16" or .0591") with a breaking strength of 200kg (440lbs) .

• 
  
  
  • 0.12 Ohms/meter - Brilliant conductivity - Top Quality
  • Very tightly wound and far superior to Standard 7 strand wires.
  • 7 galvanised filaments stranded together - tough, flexible and easy to use.
  • 400m Spool, 1.5mm diameter
  • Will outlast all ropes and tapes.

Most of the HT single strand wire we use in this country has a breaking strength somewhere north of 1000lbs.