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Cross Arm is an important part of the tower, it is used to install insulators and fittings to support the wire and lightning lines, thus to keep safe distance between them.
According to the use, it can be divided into: straight cross arm; corner cross arm;tension cross armAccording to the material, it can be divided into: iron cross arm; porcelain cross arm; synthetic insulation cross arm.
Cross arm is generally installed at 300mm from the top of the pole, and the straight cross arm should be installed on the receiving side, while the cross arm on the corner pole, the terminal pole and the branch pole should be installed on the guy wire side.