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precise testing probably are not daring to try
to build their equipment to deliver very close to the
limit permitted by the code. Of course, the smaller
the shock, the less will be the effectiveness of the
fence delivering that shock.
Because of its great economy the Electric
Fence is sure to be a big factor in the farm life of America but
nobody wants to buy one that is unsafe and certainly nobody wants
to buy one that is useless which is what has prompted us to
outline the situation and place in your hands the more important
points in the new regulations as well as a discussion of them by
Cornell University.
SUMMARY OF CODE STANDARDS
The Industrial Commission of Wisconsin
and the N.E.S.C. have established 3 milliampere seconds as the
maximum quantity of electric charge in each shock for battery
controllers. However, extremely large fluctuations in current
and voltage take place during the shocking period. The condition
of the battery, length and condition of fence, design of fencer
and manner in which the animal touches the wire all tend to
limit the effectiveness of a battery fencer.
The Continuous A.C. fencer with an 8
m.a. output will under favorable conditions effectively control
stock on short lengths of fence. Naturally, because of its lower
current output, its capacity is somewhat limited.
The Intermittent A.C. fencer with a safe
25 m.a. shock for 0.1 second as established by the Industrial
Commission of Wisconsin and N.E.S.C. is effective. However,
provision must be made in the design of the fencer for maintaining
the full current and time allowed by these authorities.
Babson Bros. Co.
Chicago
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