company news about The fuse protects the safe driving of electric vehicles

        At present, an important issue for electric vehicles is how to avoid and prevent the possible short circuit of high-voltage circuit in the event of vehicle collision. Generally speaking, electric vehicle manufacturers will attach great importance to the management of strong electricity, and often apply multiple fuses on the circuit. In case of collision or short circuit, the fuse will automatically cut off the power supply.

What kind of fuse can really guarantee electric vehicles?

        More than ten years ago, the National Standards Committee formulated and issued two national standards: GB/T 18384.2-2001 Safety Requirements for Electric Vehicles, Part 2: Functional Safety and Fault Protection, and GB/T 17531-2005 Safety Requirements for Hybrid Electric Vehicles, The overcurrent protection device for electric vehicles is defined as "when the current is too high, a circuit protector, disconnecting device or fuse shall be used to disconnect at least one electrode of the on-board power supply (such as the traction battery)", And "The traction battery and power circuit system shall be protected by circuit breakers and fuses. The device shall be able to automatically disconnect the connecting circuit with the traction battery in case of over-current specified by the vehicle manufacturer and short circuit in the circuit connected with the traction battery".

        As far as circuit breakers are concerned, today, for many reasons, DC high-power circuit breakers above 300V have not been widely used in electric vehicles due to their large size, poor shock resistance and high price. Only the fuse, with its comprehensive advantages of small size, good shock resistance and low price, has been widely recognized and widely used, and has become the main component for short circuit protection of electric vehicles recognized at home and abroad.