Fencing Options for Your Grazing System 2011 Georgia Grazing School John W. Worley.

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Presentation transcript:

Fencing Options for Your Grazing System 2011 Georgia Grazing School John W. Worley

Fencing Systems Plan the system before building Choose the right materials Use the right construction techniques Don’t let a “temporary fence” turn into a high maintenance permanent fence

Types of Fences Field Fence (Page wire, hog wire, woven wire) w/ barbed wire at top –Perimeter and baby calf areas

Types of Fences Barbed wire –Where electric doesn’t work well

Types of Fences Electric (Note vinyl coated wire)

Wire Types Steel (Standard or High Tensile) –Single, barbed, woven Galvanizing (Class I or Class III) Vinyl Coated (including conductive) Electric Tapes and Ropes –Temporary –Permanent

Post Types Wood –Treated (at least 0.6 lb/ft 3 ) –CCA replaced by ACQ –Untreated (Landscape Timbers are untreated or lightly treated) Steel (Painted and Galvanized) Plastic (Temporary electric) Fiberglass –Sucker Rod (High Density FG)

Materials Perimeter Fencing –Recommend High Tensile, Class III galvanized wire –Galvanized Steel or Treated Wood Posts –Class III galv. staples (1 ¾”) Cross Fencing –If truly temporary, use plastic posts and electric rope or tape

Components with Similar Lives Painted Posts with Class III galvanized wire

How Long Will It Last? Painted Posts with Class III galvanized wire

How Long Will It Last? Galvanized Posts with Class I galvanized wire

How Long Will It Last? Galvanized Posts with Class I galvanized wire

How Long Will It Last? Painted Posts, Class I woven wire, Class III barbed wire

Fence Chargers (Controllers, Energizers) Mile rating is not a good indicator Look for ratings at different loads (ohms) –50,000 ohms (fence in good condition) –5,000 ohms –500 ohms –100 ohms (fence in poor condition) At least 1000 ohms

Cost per Mile

BRACES and INSTALLATION

H Brace Strongest Brace Top member 2 to 2 1/2 x height of fence

Pinning Braces Min. 3 ft. Min. 8 ft.

Pinning Braces 3/8” Galvanized Rod

Installing Brace Wire Allow wires to slip

Installing Brace Wire Tensioning the wire brace

Dead-Man Brace Need Larger Post Not as Strong Easier to Build

Stapling Technique Leave Wire Loose Only Horizontal Wires Rotate from Vertical (Rotate away from slashes) –Right for right-handed staples –Left for left-handed 1 3/4” Galvanized Staples

Post Installation Driven wooden posts are stronger Drive Small End Down

Post Installation Proper Tamping Procedure

Electric Fence Grounding Proper grounding of charger is vital –3 or more 8-ft rods –10 ft apart –Separate from other electrical grounds –Drive and attach underground to prevent mower damage –Never Concrete Over Ground Alternate Wires

Lightning Protection Good grounding is essential Nothing is “Lightning Proof” Use devices sold by charger manufacturer to maintain warranty

Lightning Protection “Choke” and “Lightning Arrestor” Separate (Better) Grounding System Protect Source side as well as fence side Energizer Ground Lightning Arrestor Lightning Ground Choke Cut-out Switch 10-ft apart At least 50 ft 8-ft Rods Protection at Power Source

QUESTIONS ?