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Related Manuals for Nemtek Agri 1/2J
Summary of Contents for Nemtek Agri 1/2J
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Page 2: Table Of Contents
NEMTEK Table of Contents Introduction & Company Profile Warranty Nemtek Group Outlets 1. The Reasons for Using an Electric Fence 1.1 Why a Monitored Electric Fence? 1.2 Electronic Fencing for Game & Poaching Control 2. How an Electric Fence Barrier Works 3. -
Page 3: Introduction & Company Profile
Introduction & Company Profile INTRODUCTION Thank you for choosing our product! NEMTEK Electric Fence Energizers are designed and manufactured to provide many years of reliable use, if installed and maintained correctly. The guidelines provided in this manual will assist you with the basic operation and maintenance of your energizer. -
Page 4: Warranty
Nemtek (Pty) Ltd will, at its discretion, either repair or replace a product that proves to be defective. Nemtek (Pty) Ltd does not guarantee that the operation of the product will be uninterrupted and totally error free. -
Page 5: Nemtek Group Outlets
NEMTEK Nemtek Group Outlets NEMTEK (Head Office) Tel: +27 (0)11 462 8283 Stand 251, Aintree Avenue, Fax: +27 (0)11 462 7132 Northriding Commercial Park Kya Sand, Randburg, South Africa NEMTEK (Edenvale) Tel: +27 (0)11 453 1970 Unit 1 & 2, Meadowdale Office Park Fax: +27 (0)11 453 1858 Cnr. -
Page 6: The Reasons For Using An Electric Fence
The Reasons for Using NEMTEK an Electric Fence 1. THE REASONS FOR USING AN ELECTRIC FENCE A high voltage shock with a physical barrier will deter animals from leaving a controlled environment and venturing out. Wild animal and vermin movement can also be controlled by either keeping them inside a controlled area or outside and separate from another group of animals. - Page 7 These energizers detect how much power a fence can accept and handle before it starts to arc and waste energy. This allows the fence to operate at higher voltages. Nemtek’s rule of thumb is that the voltage must be no less than 6500 Volts anywhere along the fence line.
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Page 8: How An Electric Fence Barrier Works
How an Electric NEMTEK Fence Barrier Works 2. HOW AN ELECTRIC FENCE BARRIER WORKS An electric pulse (current) will travel from the energizer through the live (hot) wires. The current flows through the animal at its contact point on the fence. The current then travels into the ground and will seek a return path via the earth spikes back to the energizer. -
Page 9: Types Of Fences
1. Electric fence energizer 7. Fence wire 2. High Tension (HT) cable 8. Strain insulators 3. Earth spikes 9. Wire tensioners 4. Earth cable 10. Line clamps 5. Intermediate posts 11. Cut-out switches 6. Tension posts 12. Nemtek warning sign Fig. 3.1... -
Page 10: Portable Electric Fence
NEMTEK 3.2 Portable electric fence Portable fencing can be moved as required creating temporary paddock, strip-grazing areas, or even to protect flower beds and refuse areas from pets or feral animals. The energizers are generally smaller units that can run for many days on battery power, or can be powered with solar cells and a battery back-up. -
Page 11: Installing A Permanent Electric Fence
Installing a Permanent NEMTEK Electric Fence 4. INSTALLING A PERMANENT ELECTRIC FENCE It helps to plan your fence layout taking various needs into account, which include: • Energizer location and power source • Water supply and feeding stations • Gate and access points •... -
Page 12: Post And Wire Spacing
NEMTEK 4.1 Post and wire spacing These are guidelines only, spacing between the wires and the posts can vary depending on the terrain and the changing needs. indicates a live wire indicates an earth (ground) wire... - Page 13 NEMTEK...
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Page 14: Selecting The Correct Energizer
• Energy delivered by an energizer is measured in joules, with the abbreviation J. • Nemtek energizers are classified by their output energy and not their stored energy. • Output energy is the true available energy at the terminals from the energizer, into a specified load. - Page 15 Nemtek has tailor-made an innovative, cost effective product range specifically to meet the needs of the domestic farming and game farming communities. Durability, reliability, effectiveness and value for money are paramount in every product that bears the Nemtek name. Placement of energizers •...
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Page 16: Solar Powered Energizers
It is mainly for economic reasons that a solar power system is used as the supply for Nemtek’s electric fence energizers. A solar system can be a reliable and cost effective supply in places where there is no mains supply or the mains supply is unreliable. Solar power is also a clean and renewable energy source and if there are concerns about the carbon footprint solar power will be a viable solution. - Page 17 The Load The load is the equipment that has to do the work. This can be a Nemtek Electric Fence energizer, a gate motor, a pump or maybe just a light. What is important to know about the load is the voltage it operates on, what current it draws and how long it must operate for.
- Page 18 20W. If you are not sure check the DC rating with the supplier of the equipment. If you take as an example a 20W 12V Nemtek Electric Fence Energizer together with a 12V 15A gate motor. The load current for the energizer is 20W/12V = 1.66 Amps. If this is to be supplied for 24 hours the load requirement will be 1.66 x 24 = 40 AH/day.
- Page 19 NEMTEK Wiring and Cabling The standard wiring (fig 4.3b) is relatively simple. The solar panel(s) must be wired to the solar panel input of the regulator. The battery connects to the battery output of the regulator and the load connects to the load output of the regulator. Attention has to be paid to the polarities since all equipment is polarity sensitive and damage can occur if positive and negative connections are swapped around.
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Page 20: Earthing The Energizer System
NEMTEK 4.4 Earthing the energizer system (ground system) An electric current requires a source path and a return path. In an electric fence, the source paths are the live wires of the fence, and the return path is the earth (sand/ground) as well as any earth wires on the fence. -
Page 21: Test The Earth (Ground) System
2000V (2kV) or less. Using a Nemtek FenceScope (set to PROBE function) measure the voltage between the energizer earth spikes and an independent test earth spike driven into the ground one meter away. - Page 22 Testing an earth (ground) return wire and fence live (source) wire Take a Nemtek FenceScope (set to ENERGY function) and measure (using the red and black leads) the voltage and energy between the live and earth wires at the end of the fence.
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Page 23: Lightning And Surge Protection
NEMTEK 4.6 Lightning and surge protection Surge caused by lightning can damage the energizer, especially an energizer that relies on mains supply as the surge can come from the mains system. A lightning diverter can assist in reducing damage that comes from the fence. The surge will first be introduced to the diverter which should dissipate most of the surge to ground before it enters the energizer. -
Page 24: High Tension Cables, Fence Wires, Rope And Tapes
NEMTEK 4.7 High Tension cables, fence wires, rope and tapes High Tension (HT) cable High Tension cables are used to carry the high voltage from the energizer to the fence. They are insulated to avoid shorting to the earth system. - Page 25 NEMTEK Poly wires, rope and tapes Poly wires and ropes are used for temporary enclosures where the electrical fence system will be moved periodically. Poly tapes are mainly used with horses due to the high visibility they offer the animal.
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Page 26: Game Fencing
Poaching of game is an additional problem faced by game reserves and game farms, but the security features offered by the Nemtek electric fencing energizers can assist in this battle. -
Page 27: River Crossing
NEMTEK Game fencing – river crossing End strain Offset brackets Energy limiter / floodgate controller Wire tensioner Chains Heavy cable to support the chains The river flows and levels will vary depending on the seasons. As the water touches the chain the energy limiting floodgate controller will not allow the rest of the fence to short out. -
Page 28: Housing The Energizer
1. Solar panel 2. Shock box made from steel / aluminium 3. Nemtek energizer 4. Voltage regulator to control the voltage from solar power and to the battery 5. Deep cycle battery 6. -
Page 29: General Information
NEMTEK 4.9 General information Tensioning of wire In permanent fencing systems different products can be used to tension wire. Place the wire tensioner on both ends of the fence on long runs. Porcelain tensioner Earth tensioners Nylon tensioner Joining wires – line clamps Line clamps are used to join large diameter wires. -
Page 30: Gates
NEMTEK Gates Electrifying gates using a gate handle and spring system makes the electric fencing highly visible and effective. The spring can stretch across the opening, diverting the animal away. Install under-gate cable under the gate to power up any sections on the opposite side. -
Page 31: Installation Of A Temporary/Portable Electric Fence
Installation of a Temporary/ NEMTEK Portable Electric Fence 5. INSTALLATION OF A TEMPORARY/PORTABLE ELECTRIC FENCE Temporary/portable fence systems tend to be made up of smaller runs than you would use in permanent fence systems. Smaller energizers which rely on battery or solar power systems, are used to power up the fences (see Fig. -
Page 32: Fault Finding
6. FAULT FINDING 6.1 Nemtek FenceScope™ Multitool FenceScope is Nemtek’s voltmeter (see Figure 6.2 on page 33), current meter and fault- finder in one. It saves hours checking fence lines for faults. The FenceScope can be used for routine checking and maintenance of an electric fence. - Page 33 NEMTEK 6.3 Fence fault finding chart Fig 6.2...
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Page 34: Safety Requirements And Interference
Please read the manual that comes with your energizer before installing the unit and investigate the requirements of your local authority as they may vary from area to area. Every effort is made by Nemtek to comply with the International standards for safety and interference, but they can vary from area to area. -
Page 35: Glossary
NEMTEK Glossary 8. Glossary Term Definition AC - See "Alternating Current" Alternating Current - An electric current that reverses direction at regular intervals, having a magnitude that varies continuously in a sinusoidal manner Arc - A discharge of electricity through air or a gas. - Page 36 NEMTEK Term Definition Ohm's Law - E=IR; l=E/R; R=E/I; Where E = Voltage impressed on a circuit, I = current flowing in a circuit and R = circuit resistance. Ohm's Law is used for calculating voltage drop, fault current and other characteristics of an electrical circuit...
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Page 37: Disclaimer
9. NOTICES REGARDING THE USE OF THE INFORMATION WITHIN THIS MANUAL In no event shall Nemtek and/or its respective suppliers be liable for any special, indirect or consequential damages or any damages whatsoever, howsoever arising including but not limited to damages resulting from personal injury, damage to property or loss of profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use of the information within this manual.
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