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防火电缆种类

网址:www.fanghuodianlan.cn  2021-05-20  作者:admin    阅读:

防火电缆种类:
Type of fireproof cable:
YTTW--防火电缆的外面是铜带纵包焊接轧纹,里面的缆心绝缘 采用耐火云母带绕包,最后成缆用玻璃纤维丝或者其他一些耐火的填充物。
Yttw - the outer surface of the fireproof cable is longitudinally wrapped with copper tape, welded and rolled, the inner cable core insulation is wrapped with fire-resistant mica tape, and finally the cable is finished with glass fiber or some other fire-resistant filler.
BBTRZ--防火电缆和上面结构一样,就是把耐火云母带换成了陶瓷化硅橡胶带,这两种绝缘不同的电缆我也不知道哪种更好。
Bbtrz -- the fire-proof cable is the same as the above structure, that is, the fire-resistant mica tape is replaced by the ceramic silicone rubber tape. I don't know which of the two cables with different insulation is better.
NG-A--防火电缆外护套用的是铝,也就是由铜带纵包焊接轧纹变成了铝带纵包焊接轧纹,里面的缆心可能会多绕几层耐火绝缘带。
Ng-a-the outer sheath of fire-proof cable is made of aluminum, that is to say, the longitudinal welding rolling pattern of copper strip becomes the longitudinal welding rolling pattern of aluminum strip, and the inner cable core may be wound with several more layers of fire-resistant insulating tape.
BTLY--防火电缆外面的保护采用连续挤压铝管,里面缆心的保护也同样是连续挤压包覆的铝管,电缆里外的铝管保护都是光杆,没有轧纹,这种电缆的弯曲性能肯定是没有纵包焊接然后轧纹的柔性防火电缆。
Btly - continuous extrusion aluminum tube is used for the protection of the outside of the fire-proof cable, and the protection of the inner cable core is also continuous extrusion coated aluminum tube. The protection of the inner and outer aluminum tubes of the cable is smooth rod without rolling marks. The bending performance of this kind of cable is certainly flexible fire-proof cable without longitudinal welding and rolling marks.
BTTZ--矿物质绝缘电缆,也有人叫它氧化镁电缆,这种电缆应该是防火性能比较好的电缆,但是生产工艺非常复杂,主要是氧化镁粉的灌装比较难做 ,生产这种电缆的设备还不能实现国产化,主要靠引进先进技术和设备。总之,防火电缆原理是根据采用的材料和制造工艺不同从而防火效果不同的。
Bttz mineral insulated cable is also called magnesium oxide cable. This kind of cable should have better fire resistance performance, but the production process is very complex, mainly because the filling of magnesium oxide powder is difficult, and the equipment for producing this kind of cable can not be made in China. It mainly depends on the introduction of advanced technology and equipment. In short, the principle of fire-proof cable is based on the different materials and manufacturing process, so the fire-proof effect is different.

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