2.How can i saving my cost if enlarge the electric fence ?

Wooden electric fence.

Once wooden post installation, pull wooden post out will spend much labour, time and cost.

We suggest that farmer should build a independent fence.Not only all wooden post can be reserved, but also the previous wooden post can be as one side of new independent fence.

If your energizer power is enough, using one pieces of cable connect the hot wire of previous to the new fence conductor.

If power is not enough please change a more powerful energizer, or purchase a new energizer as power supply for new electric fence.

3.what do i need to pay attention to ?

1)Effective Earthing System

The ground constitutes 50% of the electrical circuit but 90% of all problems originate at poor earthing, either at the earth stake itself or on the fence.

Copper, Aluminium, Stainless Steel, Copper clad steel or Galvanized steel rods are best in that order.

2)No voltmeter.

If the fence is at fault, then there is a process of checking the fence with your tester as you go along.

Without a voltage meter to check how hot a fence is, The only other way is to use your hand – that hurts.

3)Bottom wire in contact with heavy, wet vegetation.

Wet grass will suck lots of juice out of any fence energizer.

Please buy one that puts out lots of power. During a rainy year, That's when you will need extra power to shock through the heavy, wet vegetation.