When the fence is "shorted out" or "grounded" ... Just turn it off, and trim brush away what every is causing the problem ... If it is a fallen branch, I'd just kick it or use another stick and QUICKLY fling it off ... It will not trip a breaker in your house! These fences do not have a constant on feature, they work on "pulse's" ever few seconds, they send out a "jolt", but a very high jolt of electricity ...
The fence "chargers" (what put the electricity into the fence) come in different power levels measure usually in Joules ... And the manufactures usually recommend a certain size for a certain number feet length of fence ... If you go with the "mesh" style instead of a standard wire like a cattle fence they usually need a higher strength charger per foot, because you are running more than just a couple of strands of bare wire ...
Gate kit -
http://www.premier1supplies.com/detail.php?prod_id=102851&cat_id=45
Or these just hook onto the top of a post at the end of a run of fencing ...
http://www.premier1supplies.com/detail.php?prod_id=102852&cat_id=45
As far as chargers go, and in my opinion ... BIGGER IS BETTER ...
Plug in to house current ...
http://www.premier1supplies.com/detail.php?prod_id=13707&cat_id=54
Joules
3 stored joules
2.3 released joules
1.9 output joules in moist soils
1.24 output joules in dry soils
Miscellaneous
Requires 6 ft. of ground rod in the ground
4.5 watts drawn per hour
48 pulses per minute
6' cord
2 prong plug
Simple. No fancy "bells and whistles."
Modular. Very easy to repair.
Should Power...
3 miles of 3 strand cattle fence
1 mile of 5-7 strand sheep fence.
15 164' sheep/goat nets and
7 164' PoultryNets.
All distances are dependent on amount of grass/weed load on the fence.
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Compared to their plug in half joules unit -
http://www.premier1supplies.com/detail.php?prod_id=127242&cat_id=159
HotShock 5
Peak output: 0.5 joules
Pulses per minute: 38
110 AC draw: 1 watt per hour
Should power 1 mile of 3 strand cattle fence, 1/2 mile of a 5-7 strand sheep fence, 6 of the 164' sheep/goat nets and
3 of the 164' poultry nets. All distances are dependent on amount of grass/weed load on the fence.
If you need to go solar powered ... That can be done too! But cost MORE, for less power ...
You can check your local "feed and seed" supplier for a charger if you would rather ... The charger does not need to match brand for brand, you just need to know how many joules you want, and if you might need to expand in the future ... Buy once cry once!