This paper analyzes the kinds,functions and technology requirements of circuit protective device on CHANCHE PLOUGH car,and introduces the key factors when we choose rated parameters of the fuse.

• 分析了昌河北斗星汽车用电路保护装置的种类、作用及技术要求,介绍了在选择熔断丝额定参数时应考虑的关键因素。