product type 1.structure: J is type for contact wire; 2.dimensions: nominated cross section of the conductor to be connected(mm²); 3 rated working load: be equal to rated working load of the connectors(kN) parameters: working load: a) the rated working load of the contac wire connector for the conventional speed(V≤200km/h）railway is 1.1 times the rated tension of contact wire, the maximum working load:16.5kN b) the rated working load of the contac wire connector for the high speed(250km/h,300km/h）railway is 1.1 times the working tension of contact wire, the rated working load of the contac wire(150mm2 copper alloy) connector≥:27.5kN,the maximum working load of the contac wire(150mm2 copper alloy) connector≥:16.5kN c) the maximum working load of the contac wire connector for the high speed(350km/h）railway is 1.1 times the working tension of contact wire,the maximum working load of the 150mm² copper alloy contact wire connector is: 33.0kN; sliding load: 3 times rated working load; breaking load: 3 times rated working load