Cross arms

The Cross arm is the horizontal angle iron on the top of the wire rod with a porcelain bottle on it. It is an important part of the tower pole. It is used to install insulators and gold gear, with supporting wires, lightning mocking lines, and keeping a certain safe distance in accordance with regulations. According to the material, it can be divided into iron horizontal crossarm, porcelain horizontal crossarm, synthetic insulation and horizontal crossarm; horizontal crossarm is divided into 10kV and below lines, such as horizontal crossarm, door rod horizontal, lift, leading lead, etc. And 35kV and above lines are assembled (straight line, corner, and resistance). The gold -assisted gold has Mail, cross -burden, feet, curl plates, hugs, monocular bolt, double head bolt, wearing nails, etc.

The straight -wire horizontal crossarm is used to withstand the vertical and horizontal loads of the wires when the normal uninterrupted wiring; it will also be used to withstand the pulling of the wires in addition to the vertical and horizontal loads of the wire; In addition to the vertical and horizontal loads of the wires, it will also bear a large unilateral wire pulling force. According to the force of the horizontal crossarm, a single horizontal crossarm is used for the straight pole or less than 15 corner rods, and the corners of the corner of 15-45 degrees are dual horizontal crossarms, 45 degrees, and branch rods at 15-45 degrees. The above corner rods, tensor resistance, terminal rods, and branch rods use cross to cross. (The rods in some areas are dual -horizontal.) The crossarm is generally installed at 200mm at the top of the rod. The straight line horizontal should be installed on the electrical side.