FAQ

King Akbar wanted to fortify his fort against intruders. So he summoned Birbal and asked him for a solution. Birbal demanded two days time to reply. In these two days, Birbal attended training session on securing perimeter conducted by A-1 Fence, and he became a champion in electric fence. Birbal went back to Akbar with a solution he was sure would impress his king. Little did he know that he would be attacked by a plethora of questions from his curious and concerned king. Does Birbal emerge successful in giving an apt reply to his king, Let's find out:

Birbal:
Oh great King, the solution to your problem is ELECTRIC FENCE.

Akbar(flustered):
What do you mean by that? Never heard of it before.

Birbal:
Electric fence is as the name suggests a fence powered by electricity. The fence is made up of 6 or more thin conductive wires that run parallel to each other and horizontally. The wires are connected to a device known as Energizer. This device transmits high voltage pulses all along the fence line.

Akbar(Awed):
I never imagined electricity will one day be used to protect ones' perimeter. What exactly do you mean when you say high voltage.

Birbal:
The voltage ranges from 5000 V to 9500 V.

Akbar: Then I don't think I will use electric fence, as such a high voltage will definitely kill my own subjects, won't it. Birbal:
No It won't. Becau….

Akbar(before Birbal could finish):
What rubbish. Any one will immediately be electrocuted on contact. I thought Birbal was wisest minister of my court.

Birbal(amused):
Even 100 V, if continuously applied can cause death. The reason Electric fence does not kill is that the Energizer emits such a high voltage in form of pulses of very small time duration. To be precise 0.3 ms. You take more than 10ms to blink your eye, that small is the duration. This pulse width is what makes electric fence safe. Always remember, it is not voltage that kills, it is current for long time period that kills. Moreover, the Energizer works on a small 12V, 7 Ahr battery, which has little potential to kill. Electric fence is 100% safe and totally NON LETHAL. Thus, electric fence is an active electronic guard that constantly protects your property.

Akbar(scratching his chin):
Hmm…technology has advanced a great deal. So you mean to say the current on fence is AC(alternating current).

Birbal:
No, AC might kill.

Akbar:
Then are you suggesting it is DC.

Birbal:
No DC will definitely kill.

Akbar:
Now you will tell there is a third type of current.

Birbal:
Sort off, the nature of current on the fence, as I already told you, is pulsating DC.

Akbar:
Oh, ok. What will happen to our cattle, goats and other farm animals, will they die?

Birbal:
No they won’t. In fact Electric fence can be put to good use to control animals. With this, you can keep our animals inside and unwanted(untamed, wild) animals outside as maybe the requirement.

Akbar:
Nice, but what about birds, they are delicate, they will certainly die.

Birbal:
No, in fact electric fence does not affect them, as they sit only on one wire, and don’t complete the circuit, they don't get a shock. Even if they happen to touch two wires, or one wire and earth, the shock they get will not kill them.

Akbar:
Impressive, How does one get shock then?

Birbal:
To get a shock one must complete the circuit. One can complete the circuit in two ways.
1) by Earthing: The Energizer is given an earth connection. When one touches a live wire, he completes the circuit via earth and he gets a shock.
2) By touching live and earth: If one touches both the live and the earth, then he will get a full shock and nice shock.

Akbar:
You mean to say, not all wires are live.

Birbal:
In earlier days, all wires used to be live, and one would get a shock only by earthing. Thus the intensity of shock depended a great deal on how strong the earth is, the distance from the earth rods, whether- dry or humid, seasons – rains, winters or summer, soil conditions and several other factors, too many variables to guarantee effective shock each time. Then came the concept of passing an earth wire between two lives. This solved the problem of earthing as the probably of touching two wires is quite high. When one touches a live and earth wire, he gets the best possible shock the energizer can give.

Akbar:
All this is fine, but what if someone cuts the wires. It wouldn’t be that difficult to cut thin wires. In this case, you entire fence is evaded in mere seconds.

Birbal:
true, it is not difficult to cut the wires, however the Energizer JVA Z 14 is intelligent, it raises an alarm in case someone cuts or shorts the wires. So one may cut the wires but he will be detected, and our royal army will be alerted. Within no time the thief will be caught.

Akbar:
Can you tell me more about this Energizer JVA Z14?

Birbal:
An Energizer is a device that powers the fence. It not only induces shock pulses in the fence but also gets back the induced voltage by means of return wires. Then it monitors the returned voltage. Ideally all voltage should come back, however, if the voltage falls below a predetermined level, it raises an alarm. Thus any change of voltage along the fence line due to poor maintenance, intentional meddling with the fence wires or any other reason can be effectively detectedand on detection can trigger the alarm system. The JVA Z 14 has a lot more features then the basic shock and detect ones, you can refer the manual and get full understanding of it.

Akbar:
All fine, however is electric fence is legal to use.

Birbal:
Although this should not matter as you are the king, but still, all JVA Energizers carry International certifications IEC 60335 2 76. It is widely used all over the globe and is also used by the government. Apart from certifications you need to put up a warning sign every 10 m, in English and local language, the intention being you are not shocking by deceit, but after given clear warnings.

Akbar:
Ok, You told the device works on 12 V battery, what charges the battery?

Birbal:
You can charge the battery without removing it from the system in two ways:

a) Using a 16VAC, 2.5 amp power supply,
b) Using a 75 W solar panel and 5A charge controller. However this would mean you will have to install a higher capacity battery, just in case there is not sufficient sunlight for days.

Akbar:
Solar, Wow. That means free electricity. I will definitely go for solar.

Birbal:
Solar is misleading, yes it will not produce electricity bills, however the initial investment you make for adding solar option is more than the cost of device itself. And then you will have to change the batteries every 3-5 years. The Electric consumption of the device is more or less equal to a tube light. So you will take ages to recover the investment you make for solar. Solar should be opted only if there is no mains power supply or intermittent mains supply in your area. Plus the device comes with inbuilt 12 V 7 Ahr battery, and you get a 24 hr backup by defaults. This further eliminates the need to add solar.

Akbar:
Hmm..But you know that our fort has wall at some places, no fence at some and iron fence at rest places. How will electric fence fit at all locations?

Birbal:
No problem at all, electric fence is very flexible and versatile. You can install it over the top of a wall, or right from the ground level up, or also attach it to existing fence very easily. Only the profile of poles in each case changes, rest entire system remains the same.

Akbar:
his is ticking all boxes. What is the spacing between adjacent wires.

Birbal:
Since you want to control human beings, the standard is having a spacing of 100mm between the wires. This makes sure that no human crosses the fence without detection. However, if you want to use it for animals, rule of thumb is to have a live wire at nose and should level. This will maximize the chance of getting a shock.

Akbar:
Very impressive, however such a sophisticated system might cost a 1000 golden dimes.

Birbal:
Again, this shouldn’t concern you, as you have millions, however, the entire system will cost you only a few hundred nickel dimes. Thus on contrary to common belief, electric fence is really affordable and effective perimeter security option.