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DO NOT electrify barbed wire! Critters can get tangled up in it, panic due to the shock and die. Very dangerous. If you go barbed wire go with a minimum or 5 strands and 12.5 gauge if you can get it or no less than 14. I have 5 strand 12.5 4 point barbed with stays between each post. I also run a heavy gauge hot wire 12" off the ground and another 2' up from that.
The red posts we have installed right now are the heavy duty 1.33 #/ft posts. I know there are some manufacturers making heavy duty posts in red, but can't find them locally.http://www.grip-rite.com/us/en/products/wire-fence-and-accessories/post-and-accessories/studded-t-posts