东莞市沃格精密电器有限公司

We know that the car fuse, car fuse holder, car fuse holder, self-recovery fuse, car fuse box, car fuse box are one of the types of fuses, all of their various types have played a very important role, then the normal working environment for the fuse We are not carefully to understand it? Now let Zhiyuan Electronics to our detailed analysis of the next bar!

1. Normal operating current operating at 25 ° C, the fuse current rating is usually reduced by 25% to avoid harmful fusing. Most of the traditional fuses use a material that has a lower melting temperature. Therefore, the fuse is more sensitive to changes in ambient temperature. For example, a fuse with a current rating of 10A is generally not recommended to operate at a temperature greater than 7.5A at an ambient temperature of 25 ° C.

2. Voltage Rating The voltage rating of the fuse must be equal to or greater than the effective circuit voltage. The general standard voltage rating series is 32V, 125V, 250V, 600V.

3. Resistance The resistance of the fuse is not important throughout the circuit. Since the fuse resistance is less than 1, the fuse resistance is only a few ohms, so consider this when using a fuse in a low voltage circuit. Most of the fuses are made of a material with a positive temperature coefficient, so there is a difference between the cold resistance and the thermal resistance.

4. Ambient temperature fuse current carrying capacity, the experiment is carried out at 25 ℃ ambient temperature conditions, this experiment is affected by changes in ambient temperature. The higher the ambient temperature, the higher the operating temperature of the fuse, and the shorter its life. On the contrary, running at a lower temperature will extend the life of the fuse.

5. Fuse rated capacity is also known as breaking capacity. Fusing rated capacity is the maximum permissible current that the fuse can fuse at rated voltage. Short circuit, the fuse will be more than the normal working current through the instantaneous overload current. Safe operation requires the fuse to remain in full condition (no burst or break) and eliminate short circuits.

SEC "fuse, professional sales production of various temperature fuse, car fuse sales agent" LANSON "current fuse," JK "self-recovery fuse with a wealth of industry experience and resource integration, the current Baoan Fuyong and manholes in Shenzhen set up a temperature fuse factory, At the same time adhere to continue to expand their own production capacity and change the type of production services to meet customer rapid sample preparation, small and medium volume and mass production of various needs; also undertake a variety of external temperature fuse foundry business; products widely used in products widely used , Household appliances, power chargers, adapters, communications equipment, lighting and other fields.