# Quick Answer: How Many Joules Do I Need For My Electric Fence?

## Can I check an electric fence with a multimeter?

The Digital Voltmeter can help you locate the source of a short by measuring the voltage in the fence line.

You can also use the Neon Fence Tester, although it is not as accurate.

You will see a reading on the screen – on a good electric fence line this should be in excess of 6,000 volts..

## How many joules should an electric fence have?

Ratings range from 1 to 20 joules. Experience at the University of Missouri Forage Research Center has shown that allowing one mile of fence per joule output is satisfactory in most situations. To control most livestock, maintain fence line voltage of at least 3,000 volts.

## Do electric fences attract lightning?

In fact, lightning rarely strikes a fence. … In the case of an electric fence, that path will be through its ground rod system, which is on the “opposite side” of the fence charger. That means if induced lightning hits an electric fence, it must travel through the charger to get to the ground rods.

## How expensive is electric fencing?

Installing an electric fence costs around \$1,263, depending on the type you buy. Most homeowners pay between \$969 and \$1,560. A low-end electric fence costs \$400, while a high-end electric fence costs up to \$1,900.

## Can dogs sense an electric fence?

With the super-hero-ability ears that dogs are equipped with, it’s no wonder they’re able to hear the electric currents buzzing through the electric fence you’ve hooked up. Dogs can hear about twice the Hertz frequency that people can – humans are stuck at a mere 20-20,000 hertz.

## What size battery do I need for my electric fence?

Electric Fences are often run by energisers that require batteries. Typically, these batteries are either 12 volt batteries or 9 volt batteries. Smaller energisers can run from 6 volt batteries and even D-cell batteries.

## Can electric fence kill dog?

Can an electric fence hurt a dog? Yes, because of the electrical charge passing through the wires, your dog will experience short-term pain. However, the pain isn’t immense, so it shouldn’t kill a dog. Still, you have to watch out for potential burns and aggression.

## Is higher joules better?

All about the joules Generally, the more joules the better, as this means the device can handle one large surge, or multiple smaller surges, before your gear is in danger. Over time, the parts inside the protector wear down, reducing its effectiveness.

## How long does a 12 volt battery last on an electric fence?

12 v 110 amp We always recommend the use of leisure and deep cycle batteries with electric fencing as, unlike car batteries, they are designed to be repeatedly discharged and then re-charged. This battery should have a life of 200 cycles and can last up to 2-7 years if treated correctly.

## Can an electric fence kill a human?

Because electric fencing has low current and pulsates, it can’t kill or permanently hurt anyone. However it is strongly advised to keep children away from an Electric Fence.

## Can an electric fence kill a cat?

No, in general an electric fence shouldn’t kill a cat. Any cat that came into close proximity to one would normally just leave. They avoid electric fences like the plague because they can sense the electromagnetic field these devices generate.

## How many joules does it take to kill you?

Under certain conditions, 10^-18 joules can kill a human. Normally this would be imperceptible. However, if this energy comes in the form of a photon, it is enough to ionize DNA molecules, causing mutations. This mutation could cause cancer, killing the person.

## How long will a car battery power an electric fence?

approximately 59 daysDraw from a 12v battery is 42 milliampere (mA) per hour. With this energizer a 12v 100 ampere hour, deep cycle battery will last approximately 59 days* on a clean or a weedy fence.

## How many volts should my electric fence have?

The voltage of an electric fence should vary from about 2000 to about 10,000 volts. A 10,000 volt output is the maximum voltage allowed by international regulations.

## How much energy does an electric fence use?

The typical Zareba® fence charger uses about 33 watts per day. So, 33 watts multiplied by 31 days is 1,023. Divide that by 1,000 to get 1.023 kilowatt hours per month. The U.S. average cost of a kilowatt hour is 12 cents.

## How many joules is dangerous?

50 JoulesHow many joules is dangerous? Greater than 10 Joules is considered hazardous. Greater than 50 Joules is a lethal level.

## Does electric fencing use a lot of electricity?

DOES THE ELECTRIC FENCE CONSUME LOTS OF POWER? Typically no, on average you will only see a slight increase on your electricity usage bill (about R15 – R20 rand extra per month), a small price to pay for an effective perimeter deterrent.

## Can peeing on an electric fence kill you?

Nonetheless, though it may be rare, there are a handful of cases in which an individual (always male, it seems) has died when a strong electric current traveled up his urine stream. … “MythBusters” also found that peeing on an electric fence can be a shocking experience.

## Is 1000 joules a lot?

A Joule can be defined in terms of force-distance but it can also be defined as one Watt-second, a Watt applied for one second. … That uses 1000 joules or 1 kilojoule of energy. You should have a lot of heat and a lot of light for ten seconds.

## Can I use a car battery for electric fence?

You can certainly use solar fence chargers; however, one easy way to keep your electric fence charged is to hook it up with to 12V car batteries in a parallel manner. … Doing this doubles the amount of time that you have before you need to recharge your fence.