electric fencing multiple wires?

distantmemory

in a multiple wire electric fence system, how are live wires connected to each other and earth wires connected to each other? help appreciated as im new to this stuff.

bob charles

distantmemory wrote: »

in a multiple wire electric fence system, how are live wires connected to each other and earth wires connected to each other? help appreciated as im new to this stuff.

how many strands of wire are you talking about in the fence? you can either have an all the strands of wire live where each strand is connected together once on each run with just a standard piece of wire or you can leave the bottom strand of the fence as an earth and this will help the fence to burn back vegetation but it obviously wont have any shock

49801

earth is where the fencer unit is conected to the ground
with a main fencer you should have 4-6 earth rods buried in damp ground and connected is series to the fencer. These are 4 or 6ft galvanised steel rods.

some people as a work around the earth rod system prefer to run a second wire around a field instead that is conected to the earth on the fencer. with this method the animal has to touch both wires at the same time to close the circuit and get a shock.

With the earth rod system the animal only needs to touch one wire to get a shock. This is as the animals feet are touching the ground/earth and the circuit is close when they touch the wire.

personaly I'd go to the effort of proper buried earth rods for main.

blue5000

Normally in Ireland all the wires are live, wrap a piece of wire about 1m long between two strands with about 30cm of the joiner wire around each strand at every strainer post. The soil acts as a conductor back to the earth bars. It's only in Australia where the soil can be dry and fences run for >10km where you would use an earth wire.

snowman707

blue5000 wrote: »

It's only in Australia where the soil can be dry and fences run for >10km where you would use an earth wire.

:eek: ummm we use the second from the bottom as earth in a 5 strand fence

Farmer Pudsey

The place where earth wires are used is in sheep fencing you run 5 strands from the bottom 1,3,5 are live and 2,3 are earthed to an earth (2-3 rods) if you have a good bit of it also the fenced is earthed as it is very hard to keep good shock on 5 wires

distantmemory

bob charles wrote: »

distantmemory wrote: »

in a multiple wire electric fence system, how are live wires connected to each other and earth wires connected to each other? help appreciated as im new to this stuff.

how many strands of wire are you talking about in the fence? you can either have an all the strands of wire live where each strand is connected together once on each run with just a standard piece of wire or you can leave the bottom strand of the fence as an earth and this will help the fence to burn back vegetation but it obviously wont have any shock

I will be using 4 strands of wire in a very small area 50 meters x 30. i will be using the soft wire. not sure what its called but its like cord and comes in roles. would it be ok to just have a piece of this wire tied from one wire to another at one point for it to work? also i will be using a battery unit. thanks

bbam

distantmemory wrote: »

I will be using 4 strands of wire in a very small area 50 meters x 30. i will be using the soft wire. not sure what its called but its like cord and comes in roles. would it be ok to just have a piece of this wire tied from one wire to another at one point for it to work? also i will be using a battery unit. thanks

Sounds fine...
For this set-up one earth rod should be fine, particularly if you get it well down and better if it's in damp ground..

What are you keep in behind the fence ??

distantmemory

bbam wrote: »

distantmemory wrote: »

I will be using 4 strands of wire in a very small area 50 meters x 30. i will be using the soft wire. not sure what its called but its like cord and comes in roles. would it be ok to just have a piece of this wire tied from one wire to another at one point for it to work? also i will be using a battery unit. thanks

Sounds fine...
For this set-up one earth rod should be fine, particularly if you get it well down and better if it's in damp ground..

What are you keep in behind the fence ??

another query i have is do i have to have a full circle of wire to complete the circuit or could i start at one pole and finish at a pole at the end. also im unsure how to set up a single gate wire. thanks for help.

bbam

distantmemory wrote: »

another query i have is do i have to have a full circle of wire to complete the circuit or could i start at one pole and finish at a pole at the end. also im unsure how to set up a single gate wire. thanks for help.

No need for a loop... straight line is fine... Get a spring handle and it can work as a gate....

distantmemory

bbam wrote: »

distantmemory wrote: »

another query i have is do i have to have a full circle of wire to complete the circuit or could i start at one pole and finish at a pole at the end. also im unsure how to set up a single gate wire. thanks for help.

No need for a loop... straight line is fine... Get a spring handle and it can work as a gate....

how do i attach the wire to the first and and last posts? the wire obviously cant be tied directly around the wood. thanks

distantmemory

i found out the last question. the wire will be polywire (rope) can the different strands of wire be attached together to give them all power by simply tying polywire from one to another with simple knots?

bbam

If your using wooden posts get some nail in insulators...



Or if its a fence to be moves round much I'd opt for plastic posts with insulators moulded in..


Use spring gate handles for the gate..



At the end just tie it to the insulator or round the plastic post, just ensure it's not touching the wooden post or it will short out..

distantmemory

bbam wrote: »

If your using wooden posts get some nail in insulators...



Or if its a fence to be moves round much I'd opt for plastic posts with insulators moulded in..


Use spring gate handles for the gate..



At the end just tie it to the insulator or round the plastic post, just ensure it's not touching the wooden post or it will short out..

will the spring handles come with somthing to attach them to the wire at eithei end? also can i connect the current between the different strands of poly wire by simply tying some polywire from one strand to another with a normal knot? thanks 4 great help

bbam

Yes just tie them together and they will be fine..
Some gate handles come with hooks for the posts and some don't.. just see what you can get..

distantmemory

bbam wrote: »

Yes just tie them together and they will be fine..
Some gate handles come with hooks for the posts and some don't.. just see what you can get..

thanks for your patience