jmh226

I actually tried just that initially, but no one has the exact info that I'm looking for. Contacting the company is how I got the information that I posted above. The company basically gave me the above info and then indicated that their product is safe since it is UL listed (Underwriters Laboratory). I tried to find out what the specific UL specs are, but they want $979.00 for a copy of their specification 69 which pertains to electric fences. Not happening. So anyway, here I am trying to slog my way through figuring it out - hopefully with your help!

I found a chart for the electrical resistance of human contact points in the safety chapter of an online document entitled "lessons in electric circuits". It indicates that a wire touched by a finger results in 40,000 to 1,000,000 ohms of resistance dry, and 4,000 to 15,000 ohms of resistance wet; a wire held by a hand resluts in 15,000 to 50,000 ohms dry, and 3,000 to 5,000 ohms wet. The basic question that I'm trying to get at here is worst case scenario, what is the maximum voltage/amperage shock that one could receive from this fence. I am attempting to use electric fencing in a nature preserve, but our insurance company is balking...I want to be able to indicate to them that the maximum shock is not going to kill/harm humans. Thanks a lot!

How do I calculate the amperage of the shock received from an electric fence with the following specs? The controller specs: Voltage: 12 volt DC operated Current Draw: 0.067 Amps Output Pulse period: 1.280 Seconds Pulse On Time (Electricity flowing): 0.000072 Seconds Time between pulses (Off Time): 1.279 Seconds Peak Output Voltage (No Load): 11,400 Volts Fence Load Peak Volt Pulse Energy (In Ohms) (in Volts) (In Joules) 2,000 6,560 0.27 500 5,040 0.57 300 4,160 0.60 200 3,360 0.58 100 2,160 0.49 50 1,200 0.34 I tried converting the Pulse energy in Joules to Watts by dividing by the pulse on time, and then using Watts=Volts x Amperage to get the amperages, but the amperages come out anywhere between .57 and 4 amps depending on the resistance. I also tried using Ohm's law (dividing the voltage by the resistance) and the amperages come out even higher! Everything safety related that I have read indicates that an amperage this high would be enough to stop the heart and cause severe burns, so I think I am making a mistake somewhere... any help would be appreciated. Thanks!