Research and application progress of silver-based contact materials in low voltage apparatus
Silver-based electrical contact material is core component to ensure low-voltage apparatus efficient and safe operation.The performance specifications directly affect the safety and reliability of electrical equipment.On account of environment protection,traditional silver cadmium oxide electrical contact material containing cadmium,a heavy metal toxic element,is being phased out of existence.With the updating and upgrading of low voltage electrical equipment,higher performance requirements are proposed for silver-based electrical con-tact materials.In this paper,the failure mechanism of silver based electrical contact materials and the classifica-tion of common silver based electrical contact materials are discussed.At the same time,the existing problems,composition design and process optimization of various silver based electrical contact materials are comprehen-sively summarized.In combination with the research and development needs of various low-voltage apparatus ef-ficients,suggestions for the development of silver based electrical contact materials in the future are given,which provides reference for the research and development of silver based electrical contact materials.
low voltage apparatuselectric contactsilver based materialperformance
NETL
NSTL
万方数据
