The Guy Grip is readily available in guy wire sized from 1/4” to 1-1/4” diameter. No impact protection device should be in direct contact with the guy grip. The Guy Guard is not intended as a guy grip end sleeve. The low profile sheds the sliding ice from the guy wire without generating the force caused by a sudden stop of the cylinder. The Guy Guard protects the guy wire grip and other accessories from ice cylinder damage. Another effect of the ice impact is a surge in guy wire stress. Any tower accessories in the path of the ice would also be destroyed including the ground wire attachment or guy wire dampeners.
Impacts of this magnitude will strip the grip from the guy wire, release the support and could result in tower failure. This destructive action is repeated as higher segments of cylindrical ice release and fall. This cylinder falling 200 feet would generate a force of 800 g or 8,000 pounds. To illustrate, a ten foot long cylinder piece of ice formed by 1/2” of radial ice accumulation on a guy wire could weigh approximately 10 pounds. The ice cylinders will then spiral effortlessly down the guy wire and impact the guy wire grip and any other intervening tower appurtenance. Clamps for communication drops, lashing wire, messenger suspension, guy wire deadends and grounding. After the storm, a combination of heat radiating from the sun and temperature rise causes the ice cylinders to melt first where in contact with the guy wire. Freezing rain readily accumulates on the guy wires forming cylinders. Steel guy wires conduct temperature changes very efficiently. Once damaged, the grip could release the guy wire and place the tower in jeopardy. One mode of failure is ice damage to the guy wire attachment grip. Radial ice is among the leading causes of tower failures. The Guy Guard permits straight and continuous path from the top guy wire to the grounding rod. This repeating “S” configuration results in an indirect path to the ground. Guy wire clamps force the copper grounding wire to change direction from vertical to parallel with the guy cable and back to vertical. The Guy Guard distributes a normal force over a large guy wire area and eliminates any point load stresses. This point load reduces the load capacity of the guy wire system. Wire clamps attach to the guy wire by actually deforming the strands of the cable. The large contact area between the Guy Guard and the guy wire offers a more conductive surface and a reduction in resistance between the two conductors.Īnother advantage of the Guy Guard is a reduction in the stress translated to the guy wire by the gripping force. Any high fault current (lightning) not finding ground through the grounding rod will dissipate energy into the concrete foundation causing structural damage. This attachment reduces the possibility of galvanic corrosion to the electrical connection which could result in an increased resistance to the grounding rod. The advantage of the Guy Guard over the typical wire clamps is a neutral stainless steel interface between the copper grounding wire and the galvanized guy wire. GUY-GUARD™ Ground Wire Attachment Superior Electrical Grounding Wire Attachment
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