Recently, the ZN-□ -12/T1250-31.5(VCZ) plateau type indoor high-voltage AC vacuum circuit breaker (altitude 4000 meters) independently developed by our company, the new product successfully passed the type test of the mechanical industry high-voltage transmission and distribution equipment quality testing center.

All the test projects were successfully passed at one time, and the verified products have stable performance and outstanding advantages, and their main electrical performance indicators are excellent, which fully meets the bidding requirements of the national grid, and is also suitable for all kinds of plateau environments at altitudes of 4000 meters and below (such as: The power construction and application of Qinghai, Tibet and other regions, the technical indicators are in line with the current national standards and industry standards, to reach the level of similar domestic products.

The acquisition of the test report not only expands the company's product sequence qualification of high-voltage switches, but also enhances the company's market competitiveness in the field of high-voltage switches, and lays a solid foundation for the company to further develop the market in the plateau region.