GB/T 15166.5-2008

This standard provides guidelines for selecting high-voltage fuse-links specifically designed for motor circuit applications, covering parameters such as rated voltage, current, and breaking capacity to ensure proper coordination with motor starting characteristics and overload protection. It is applied in industrial electrical systems where high-voltage motors (typically above 1 kV) are used, such as in power plants, manufacturing facilities, and large-scale pumping stations, to prevent damage from short circuits and overloads. The standard is also referenced by engineers and procurement professionals when specifying fuses for motor control centers and switchgear assemblies.