company news about Factors affecting the life of the fuse

Factors affecting the life of the fuse

Working temperature:

Excessive ambient temperature is damaged in the life of the fuse. The delay type (slow melting) fuse is like a tin ball type, and the temperature starts to spread to the metal wire when the temperature is about 150 ~ 170 ° C); 175 ~ 225 ° C).

Therefore, it is recommended that the delay fuse fuse should not work above 150 ° C for a long time, and the fast -fused fuse should not work above 175 ~ 225 ° C for a long time.

Pulse current:

The continuous pulse impact will produce heat circulation, which will cause the fuses to diffuse, oxidize, thermal stress, etc., and even accelerate. The fuse gradually aged with the increase of pulse energy and number of times. Generally, it should be less than 20%, and the guarantee fuse can bear the impact of more than 100,000 times.

other:

Such as the pipe clip in contact with the fuse, the length of the connection wire, the cross -sectional area, etc. The contact resistance of the fuse and the pipe clip is large, which is damaged in life. For example, the requirements for the requirements of the UL standard, the contact resistance of the fuse and the pipe clip during the test is less than 3MΩ.

We're Dissmann fuse specialized in manufacturing rich fuses more than 20 years,Our fuse are sold throughout China, Europe, the United States, the Middle East and Southeast Asia markets. At present our customers are Apple, Microsoft, DELL, LG, Samsung, Siemens, Amphenol, BYD, CATL, Zotye Auto, Leadway Auto, etc.