Difference between ordinary cable and fluoroplastic cable
Release date: 2019-12-10 Views: 52
今天给大家分享的是普通电缆与氟塑料电缆的区别，大家可以参考一下内容来对比这两款电缆各自的优缺点。 What Xutong shared today is the difference between ordinary cables and fluoroplastic cables. You can refer to the content to compare the advantages and disadvantages of these two cables.
1. The overload capacity and short-circuit thermal capacity of ordinary cables are small, and the long-term operating temperature is 70 ° C or 90 ° C, which cannot withstand higher ambient temperatures. At the same time, PVC insulation will shrink when heated, and the thermal cycling performance is poor, which affects circuit safety. The long-term allowable working temperature of fluorine plastic wire is above 200 ℃, which can not only work normally in high temperature environment, but also greatly increase the current carrying capacity of the cable.
2. When ordinary cables are laid in places with oil pollution and steam, due to the presence of oil and chemical substances, their insulation layers will swell, age, crack, and lose mechanical and physical properties, resulting in wire scrap. Fluoroplastic wires have excellent corrosion resistance because they are resistant to acids, alkalis and various chemicals.
3. The mechanical strength of the ordinary cable insulation layer is relatively low, and it is easy to be injured by bumps or bumps, which may cause power supply accidents. Fluoroplastic wires have high strength and high hardness, which can prevent damage from mechanical external forces.
4. When ordinary cables have moisture intrusion, the insulation dielectric loss will increase, the insulation resistance will decrease, and the service life of the wires will be affected. Fluoroplastic wire has a dense structure, and the insulation layer and conductor are tightly combined, which can effectively prevent the invasion of external water, oil, and moisture.
阻燃性较差﹐加入阻燃剂后﹐电绝缘性降低﹐燃烧时产生大量有毒有害烟雾﹐对环境﹑设备和人员的生命都有极大的危害。 5. Ordinary cables have poor flame retardancy. After adding flame retardants, the electrical insulation is reduced, and a large amount of toxic and harmful smoke is generated during combustion, which greatly harms the environment, equipment and personnel. Fluoroplastic wire has a high oxygen index of over 95% and is almost non-combustible. Its flame retardancy is unmatched by other materials.