Electric Fence Working Basics


An electric fence of one or more wires insulated from soil and connected to the electric fencer. The voltage gap between the wire and the ground causes a disgusting but harmless discharge.

A good ground connection is essential in order to get an efficient fence. It depends of soil conductivity.

One Wire Fence

For a wet soil (good electricity conductor).

Cerca con un hilo

Two Wires Fence

For dry or rocky soils. The second wire allows efficient grounding.

Cerca con dos hilos


Ground Connection


We need proper electrodes. There are two kinds:

  • Copper tube, 15-20mm diameter.
  • Galvanized Steel tube, 25mm diameter.

The minimum length is 1.5 meters. The electrode must reach wet ground.

Minimum distance between electrodes must be 3 meters.

Posición del electrodo en el suelo

Posición relativa de los electrodos

The maximum electric resistance must be 100 ohms.

 



Pararrayos


A electric storm can destroy our fence or electric fencer if we don't install lightning rods.

Aislante con pararrayos

Destrucción del pastor desprotegido a causa de un rayo Caída de un rayo en un pastor protegido
Without lightning rod, the ray current goes trough the fencer, destroying it. The lightning rod deviates the ray current and protects the fencer. If a ray hits the lighning rod, you must replace it.


Lightning Rods Installation


The right picture explains the installation of a ligthning rod for a battery-operated fencer.

The bottom picture depicts installation for a main supply operated fencer

Instalación de un pastor de pila
Instalación de un pastor de red


Fencer-Fence Union


We often must connects the fence to the fencer (or another fence) through long distances or gaps.

If you choose an aereal connection, you must leave 5 meters from the wire to the ground.
Conexión aérea

Conexión subterránea

An underground connection must be encapsulated in a plastic tube.

Mind that 10 meters of underground connection equals to 1km of fence.



Electric Fences and Other Electrical Installations


We must respect security distances in any case.

The right picture depicts the distances for an electrical installation <500V.

Distancias de seguridad en una línea de menos de 500V

Distancias de seguridad en una línea de  500 a 1000V Medidas de seguridad en una línea de más de 1000V
500V-1000V
>1000V


Animals and Electric Fences Measures


Every animal determines the measures of the electric fences.

Mind also wire polarity.

Caballos
Horses

Vacas
Cows
Terneros
Calfs

Ovejas
Sheep
Cerdos
Pigs


Installation Advices


We must follow this advices if we want to install an efficient fence.

Insulators must be placed at the side of the posts, not at the top.
Nunca se han de colocar los aislantes arriba

Unión correcta de los cables en una esquina At corners, we must place the elements in the following order: insulator-tensor-side connector.

The wire must jump tensors in linear connections.
Hilo y tensador

Montaje de Manilla y Fijador The handler must be mounted this way.

Todo en su sitio An efficient fence has all proper materials, good knots and anchorages and the correct polarity.

A wrong installation. This is not a joke

 

Control de la Cerca Eléctrica


Voltage measuring can be done using digital or analogic voltimeters. In any cases, we must connecte the voltimeter between the wire and the soil.
Colocación de un voltímetro

Midiendo sin voltímetro

You can use your own body to detect electric current in a safe way.

Touch the ground with a hand and the wire using a grass leaf.

 

KOLTEC IBÉRICA, S.L. - © 2001
Avda. Conde Santa Bárbara, 48
Tel: (+34) 985 26 18 35
Fax: (+34) 985 26 00 56
33009 Llanera - Asturias - ESPAÑA

info@koltec-store.com