In order to effectively control the quality of the 10kV drop fuse

the main reason for the operation of thefuse in the system is given

and the quality improvement method is proposed. The State Grid Corporation conductsthe sampling test of the 10kV drop fuse. Through the material analysis and temperature rise test of the fuse

the mate-rial temperature of the contact surface of the main circuit conductor of the 10kV drop fuse is tested

and the test stan-dard temperature rise limit is given. Combined with the temperature rise test results

the operating conditions andquality problems of the fuse equipment are analyzed. The test analyzes the root cause of the different operating cur-rents of the fuses and the overheating at different locations. The temperature rise curve and the rising rate of the fusesat different positions are given. The results show that the fuse materials generally have different degrees of defects

the material testing failure rate is 88.9%

and the temperature rise test failure rate is 44.4%. The heat rise point of thefuse temperature rise test is mainly concentrated on the sliding position of the upper conductive piece and the uppercontact

the screw connection position of the upper contact nut and the fusion tube

and the fastening position of thefuse and the lower conductor bolt. Therefore

strictly controlling the material quality of the 10kV drop fuse is of greatsignificance for improving the stable operation of the 10kV drop fuse. The research results in this paper provide technical support for the material procurement of State Grid Corporation.