Electical question
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Electical question
I was thinking of this while reading the 2 months in a shop thread. For years I have tried to avoid this and at times it is difficult. We and a lot of others I know use electric fences. We use it to prevent animals from pushing on field fence. Sometimes at gates and other farms just use a single strand of electric and you can not see it. It is very dangerous to snowmobilers. If it is operating correctly with no grounding problems it puts out 7 to 10,000 volts. If thick wet grass or brush touches it you get more amps before the ground and less volts. 1 to 3,000 volts. It is an extremely quick jolt that you really want to avoid. In wet weather you can see tiny lightning bolts in places where it jumps to a post or wet tree. So that is the description. What happens if you back one of these electronic laden trucks into one? Has any one done it?
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From: waynesville, mo.
Its my understanding that the amperage necessary to fry the electronics in a vehicle just isn't there. If it had, there'd be a lot more dead farmers from accidentally getting into them. And yes, I've felt the wrath of the "weed burner". The path to ground will be reached before it has a chance to do damage to your vehicle. The electronics are much more robust than that.
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From: Whitecourt AB, Canada
Electric fences are high voltage, low current. That way they deter living things but don't kill them instantly on contact. If a body panel of a vehicle contacts between that and a path to earth ground, that's the only place any current (however low) will flow. Even though we say the body of a vehicle is "grounded" it is still floating from earth ground.
That would be the difference between an electric fence contacting a vehicle (current limited power source) and say having your vehicle getting struck by lightning (also brief but not limited in any way). That kind of occurrence can break the dielectric strength of the tires (not rated) and cause a current (of undefined value) to flow through the vehicle's body and frame, which can simultaneously induce current flow in the wiring harnesses and destroy electronics.
That would be the difference between an electric fence contacting a vehicle (current limited power source) and say having your vehicle getting struck by lightning (also brief but not limited in any way). That kind of occurrence can break the dielectric strength of the tires (not rated) and cause a current (of undefined value) to flow through the vehicle's body and frame, which can simultaneously induce current flow in the wiring harnesses and destroy electronics.
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Its my understanding that the amperage necessary to fry the electronics in a vehicle just isn't there. If it had, there'd be a lot more dead farmers from accidentally getting into them. And yes, I've felt the wrath of the "weed burner". The path to ground will be reached before it has a chance to do damage to your vehicle. The electronics are much more robust than that.
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Or they are wet. The moment there is a path to ground there is courant. That's how the smart tester finds the faults. The higher the amps the more ground points or the severity or the contact. They seem safe even though I have seen 3 to 4 amps. I think its because the shock is so brief.
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