The electric crossbar is an angle iron (component) that is laterally fixed on the top of the electric pole, and is an important part of the pole.
1. Functions and uses
Support wire: The cross-loader is used to install insulators and metal tools to support wires and lightning protection wires, and to maintain a certain safe distance according to regulations.
Installation equipment: The crossbar is also used to install line equipment, such as switching equipment, lightning arresters, etc.
2. Type and structure
Type: According to the purpose and stress condition, cross-load can be divided into straight-load, tension-load, corner-load, etc. The straight cross-body mainly bears the vertical and horizontal loads of the wire; the tension-resistant cross-body will also bear the tension difference of the wire in addition to the vertical and horizontal loads of the wire; the corner cross-body will also bear the relatively Large single-sided wire tension.
Structure: The crossbar is usually made of a strong metal material, such as angle steel, with good support. Some crossbars may be made of special materials or treated with special treatment, such as fiberglass crossbars with good dielectric properties and high mechanical strength, and have strong corrosion resistance.
III. Installation and maintenance
Installation position: The crossbar is generally installed 300mm from the top of the rod. The straight cross-bar should be installed on the power receiving side, and the cross-bars of the angle rod, terminal rod and branch rod should be installed on the pull-bar side.
Installation method: The crossbar can be fixed to the telephone pole through bolt connection, welding, etc. to ensure the installation is firm and reliable. Depending on the type of pole and line requirements, the crossbar can adopt different installation methods.
Maintenance: Check and maintain the crossbar regularly to ensure it is in good condition. If the crossbar is found to be corroded, deformed or damaged, it should be replaced or repaired in time.
4. Characteristics and Advantages
Good support: The cross-load can withstand large weight and tension, providing a stable support platform for various power lines.
Various installation methods: The crossbar has a diverse installation method, which can adapt to different types of telephone poles and line needs.
Certain insulation performance: Although the crossbar itself is not the main insulating component, in some cases it can play an auxiliary role in insulation.
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