Car fuse holder can be divided into: panel installation fuse seat, PCB installation fuse seat, lead fuse seat and automobile fuse seat;Fuses are installed on the panel (for electrical equipment, such as amplifier, DVD, speaker, etc.);Lead fuse holder (used for connecting small appliances and wiring harnesses of industrial machinery);PCB fuse holder (mostly used on small appliance control board) and fuse holder (mostly used on small appliance control board)
The ratings and performance of fuses are determined according to laboratory conditions and acceptance codes.There are many authoritative testing and certification organizations in the world, such as UL certification of underwriters laboratories in the United States, CSA certification of Canadian standards institute, MTTI certification of Japan’s ministry of international trade and industry and ICE certification of international electrical technology committee.
The selection of fuse involves the following factors:
1. Normal working current.
The applied voltage applied to the fuse.
3. Abnormal current required to disconnect the fuse.
4. The shortest and longest time allowed for abnormal current.
5. Ambient temperature of the fuse.
6. Pulse, impulse current, inrush current, start current and circuit transient value.
7. Are there special requirements beyond the fuse specification?8. Size limitation of installation structure.
9. Required certification body.
10. Fuse holder: fuse clip, installation box, panel installation, etc.
The conventional material used in the production of fuse holder
Bakelite, whose chemical name is phenolic, has high mechanical strength, insulation, temperature and fire resistance.At present, the most used is the switch, machine shell.Bakelite powder also has a beautiful number of insulation, its formation is mainly made of bakelite add material after pressing.
This kind of material is also used in the fuse holder specially developed by our factory
Nylon: nylon 66 has high fatigue strength and rigidity, good heat resistance, low friction coefficient, good wear resistance, but high moisture absorption and poor dimensional stability.It is usually applied to wear resistant transmission parts with medium load and operating temperature <100-120 ° c with little or no lubrication.Nylon 66 for polyadipic adipic diamine, industry referred to as PA66.The common characteristics of various polyamides are fire resistance, high tensile strength (up to 104 kpa), abrasion resistance and good electrical insulation.PTF77 is made of such excellent materials
PBT: poly (butyl glycol terephthalate, belonging to the polyester series, by 1.4 – PBT, butyl glycol (1.4 – Butylene glycol) with terephthalic acid (PTA) or terephthalate (DMT) poly condensation, and made by mixing procedure of milky white translucent to opaque, crystalline thermoplastic polyester resin.Together with PET, they are known as thermoplastic polyesters, or saturated polyesters.The ptf-15 is such a material.
Huizhou HINEW electrical appliance co., LTD. (contact: huang@hinew-cn.com) has a senior professional technology and management team, a complete sales and after-sales service network, and the products have won a number of national patents.And obtained UL, VDE, CQC, CE, 3C and other safety and SGS environmental protection certification.We have been customer service oriented, to provide the most competitive products as their own responsibility, continuous innovation, constantly enrich our products, to meet customer needs;Manatee electric appliances will also become your most honest, the most efficient and passionate, the most assured partner.
Fuse-holder brand series of products have obtained a number of national patents.Buy waterproof fuse seat, fuse seat, bakewood fuse seat to find manatee electrical appliances, trustworthy, welcome to inquire about fuse clip products.
Post time: Oct-11-2019