I had some Ramm three wire fence that I installed around 1998 and had zero issues with up to the point where I sold the place ten years later. Their warrenty required concrete in the holes but I had none. My posts were pounded in. I used single and double "H" braces with a diagonal wire but no 45 degree post to the ground.
With the plastic encapsulated tensile wire fences like Ramm and others sell, you need to keep it banjo string tight, especially when it is cold in the winter.
Being taunt did create issues with my end braces. When you strip back the plastic to expose the wires and wrap it around the end post, it tends to put a twist on that post. In addition to the brace pins, I took flat stock, made it into a "U" shape then bolted it to the end post and both sides of the horizontal brace. Perhaps concrete in the ground would limit that twist but over time I believe that the post would still twist some.
I do believe that Ramm sells this type of fence capable of being charged. Similar to "Hotcoat" or "White Lightning" I think Ramm calls it, it costs more but will do the job. HC and WL are coated tensile wire.
I have Ramm White Lightning that I bought at closeout last year from TSC. When you cut it in half and look at the end, you can see four white plastic quadrants separated by a black strip to the outside. The black strip is a conductor of some type. I originally thought that you had to touch it directly but with a good charger and a good ground, it will arc if you get close.
If you do use a brace wire to maintain your braces, I highly suggest buying a roll of Hotcote or White Lightning or whatever you can find especially if the fence is to contain animals. The chances of a wayword leg injury are much reduced with the coating.
