The most fundamental pillars of catenary, the most widely used support equipment

Contacts suspension strut arrangement to support and pass the load pillars or other buildings. Wrist and arm support device includes a horizontal rod, suspension insulator string, rod insulator and other buildings special support equipment.
The most air circuit breaker pillars of catenary, the most widely used support equipment designed to withstand contact with hanging and support equipment loads. Catenary pillar material into its use of electric meter concrete pillars and steel pillar two categories. Prestressed concrete pillars, referred to as mcb circuit breaker pillars made ​​of high strength steel, the steel in the manufacture of pre-generated tension, it is more than ordinary reinforced concrete pillar in the case of the same capacity to save steel, high strength, light pillars, etc.. Reinforced concrete pillar itself is a whole structure, no other system foundation.