TRENDS IN TRENDS IN

ELECTRIC FENCINGELECTRIC FENCINGTRENDS IN TRENDS IN

ELECTRIC FENCINGELECTRIC FENCING

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What Constitutes an What Constitutes an Electric Fence and Electric Fence and where would one be where would one be

found?found?

A Modern Electrical Fence, A Modern Electrical Fence, would be a fence powered would be a fence powered

by electrical impulses from by electrical impulses from an Energizer.an Energizer.

An Energizer that is compliant to

Internationally Accepted Standards:

IEC 60335-2-76

The Fence can either be The Fence can either be Wall Top Wall Top or or Free Free

Standing:Standing:

But lets start at the beginning, and ask

ourselves :

Why anyone would want an Electric

Fence?

The answer is rather The answer is rather simple, simple,

in that it is a rather in that it is a rather effective way of effective way of

protecting one’s ASSETS.protecting one’s ASSETS.

Assets Being:Assets Being:

Your BusinessYour Business Your FarmYour Farm Your HomeYour Home Your Loved Your Loved

OnesOnes

An Electric Fence really An Electric Fence really offers a three-in-one offers a three-in-one

solution, as it is :solution, as it is :

A Physical BarrierA Physical Barrier A DeterrentA Deterrent And An Alarm SystemAnd An Alarm System

Naturally any Electrical Naturally any Electrical Fence is only effective if Fence is only effective if installed correctly, and installed correctly, and

operative (switched on). operative (switched on).

There are many myth’s There are many myth’s surrounding the true surrounding the true

effectiveness of an effectiveness of an Electric Fence.Electric Fence.

As already indicated, to be As already indicated, to be effective, there are a few effective, there are a few fundamental’s that need fundamental’s that need

to be followed.to be followed.

Not only must the Energizer Not only must the Energizer selected for the specific selected for the specific installation comply to installation comply to

IEC 60335-2-76, IEC 60335-2-76, but the Health and Safety but the Health and Safety

aspects as stipulated in the aspects as stipulated in the specification, need to be specification, need to be

adhered to as well.adhered to as well.

Should you choose to Should you choose to ignore the International ignore the International Specifications regarding Specifications regarding Energizers, you may as Energizers, you may as well connect the fence well connect the fence

directly to the local directly to the local electricity supply – electricity supply – Just as Dangerous.Just as Dangerous.

The same applies to The same applies to installation practices. installation practices. Like killing someone Like killing someone

whilst driving without a whilst driving without a license, whilst under the license, whilst under the

influence.influence.

You may not be aware of the You may not be aware of the fact that there is fact that there is

legislation, governing the legislation, governing the installations of Electric installations of Electric

Fences, but believe me they Fences, but believe me they are there. are there.

In a Court of Law, In a Court of Law, ignorance is not an excuse. ignorance is not an excuse.

Hailing form South Hailing form South Africa, can advise that Africa, can advise that

not only is not only is IEC 60335-2-76 IEC 60335-2-76

standards adhered to, standards adhered to, but SANS 10222.but SANS 10222.

SANS 10222 does appear SANS 10222 does appear to go a little overboard, to go a little overboard, but then again, a non but then again, a non

Lethal Fence should not Lethal Fence should not kill anyone.kill anyone.

Additional or Enhanced Additional or Enhanced Specifications include:Specifications include:

Electromagnetic interferenceElectromagnetic interference Energy LimitationEnergy Limitation HT CableHT Cable Fire RetardantFire Retardant Load RangeLoad Range Closed LoopsClosed Loops Series FencesSeries Fences

To name but a few.To name but a few.

The Energizer on an The Energizer on an electric fence is the electric fence is the

engine that drives the engine that drives the fence, and is currently fence, and is currently available in numerous available in numerous

formats – models.formats – models.

Smaller Energizers, Smaller Energizers, generally used for small generally used for small installations or wall top installations or wall top

fencesfences

Larger Energizers would Larger Energizers would invariably be used for large invariably be used for large

or long fences. or long fences. May also be used for small May also be used for small

fences, where it is fences, where it is necessary to use wire with necessary to use wire with

very high resistance very high resistance properties (SS).properties (SS).

Energizers are available, Energizers are available, in in

Single Zone Units, 2 Single Zone Units, 2 Zone Units, cascading to Zone Units, cascading to

4, 20, 64 Zones. 4, 20, 64 Zones.

The trick is to select an The trick is to select an Energizer that will Energizer that will

adequately drive the adequately drive the fence around a specific fence around a specific

premises, whilst premises, whilst remaining Easy to remaining Easy to

Operate, and Operate, and Understandable.Understandable.

The Energizer, however The Energizer, however is as indicated Only the is as indicated Only the

Engine.Engine.

What then makes up the What then makes up the rest of the Fence is as rest of the Fence is as

Important.Important.

The Fence itself, consists The Fence itself, consists of numerous other of numerous other devices, such as:devices, such as:

BracketsBrackets WireWire InsulatorsInsulators TensionersTensioners Gate ContactsGate Contacts Warning SignsWarning Signs Etc, Etc, EtcEtc, Etc, Etc

The type, style and The type, style and length of bracket, would length of bracket, would naturally be dependent naturally be dependent on the Clients specific on the Clients specific

requirements and requirements and NEEDS. NEEDS.

Even the material that the Even the material that the bracket is manufactured out of, bracket is manufactured out of,

is important.is important.

It will assist in determining It will assist in determining the level of security, as well as the level of security, as well as

aesthetics of the fence. aesthetics of the fence. Wood, alluminium, fibre glass, Wood, alluminium, fibre glass, round bar, flat bar and square round bar, flat bar and square tube brackets can be found in tube brackets can be found in various lengths and shapes.various lengths and shapes.

The selection of wire used is The selection of wire used is also important, as not only also important, as not only will this determine the life will this determine the life span of the fence, but the span of the fence, but the

effectiveness as well. effectiveness as well. Braided galvanised 1.2/1.6/2.0mm Braided galvanised 1.2/1.6/2.0mm Aluminium 1.6/2.0mmAluminium 1.6/2.0mm Solid Galvanised 2.24mmSolid Galvanised 2.24mm Stainless Steel 304/316 Grade Stainless Steel 304/316 Grade

(Solid and Stranded)(Solid and Stranded)

Tensioning Devices and Tensioning Devices and Insulators need to be Insulators need to be selected for specific selected for specific

applicationsapplications

HT Cable as well as HT Cable as well as joining devices (ferrules) joining devices (ferrules)

need to be of similar need to be of similar metals to the fence wire metals to the fence wire

to prevent to prevent contamination, which contamination, which

will end up with will end up with oxidation, a common oxidation, a common cause for false and cause for false and ineffective fences. ineffective fences.

Quality, and location of Quality, and location of earth spikes plays a earth spikes plays a

major role in the major role in the effectiveness of an effectiveness of an

Electric Fence.Electric Fence.

Earth is as important as Earth is as important as the live on the Fence. the live on the Fence.

There are many other There are many other devices available, to not devices available, to not

only enhance the only enhance the effectiveness of an effectiveness of an

Electric Fence, but assist Electric Fence, but assist and warn would be and warn would be

intruders to stay away. intruders to stay away.

These devises include:These devises include:

In Line Loops – Prevent PartingIn Line Loops – Prevent Parting Ground Loops – Prevent Ground Loops – Prevent

SeparationSeparation Wall Loops – Prevent SeparationWall Loops – Prevent Separation Fence Light – A quick reference Fence Light – A quick reference

that the Fence is operative. that the Fence is operative.

Warning Signs, not only Warning Signs, not only are as a deterrent, but are as a deterrent, but

also a legal requirement. also a legal requirement.

Thank you, for more Thank you, for more information, about information, about

Nemtek and our extensive Nemtek and our extensive Range of Products:Range of Products:

PleasePlease

visit our website visit our websitewww.nemtek.comwww.nemtek.com