Crossarms are angle irons fixed horizontally on the top of the poles to support overhead lines. Generally, they are angle irons fixed horizontally on the top of the poles with insulators on them to support overhead lines. Their function is to install insulators and hardware to support conductors and lightning arresters and to keep them at a certain safe distance.
Crossarms can be divided into: straight crossarms; corner crossarms; and tension crossarms, according to their uses.
According to materials, they can be divided into: iron crossarms; porcelain crossarms; and synthetic insulator crossarms.
Straight crossarms: only consider the vertical and horizontal loads of the conductors under normal conditions.
Tension crossarms: in addition to bearing the vertical and horizontal loads of the conductors, they will also bear the tension difference of the conductors;
Corner crossarms, in addition to bearing the vertical and horizontal loads of the conductors, will also bear the larger single-sided conductor tension.
According to the stress of the cross arm, a single cross arm is used for straight poles or corner poles below, while double cross arms are used for corner poles, tension poles, terminal poles, and branch poles with an angle of more than 15 degrees (double cross arms are used for poles in some areas).
Hebei Zhuxin Electric Power Equipment Communications Co., Ltd. is a manufacturer specializing in the production of cross arms. The factory has been established for 11 years and has won many honors, such as leading enterprise, quality, service, integrity AAA enterprise, and credit China integrity enterprise. We sincerely welcome friends from all over the world to visit us.