Welcome to Xinxiang Hongxin Cable Co., Ltd.
enterprise mailbox ：email@example.com
the name of firm:Xinxiang hongxin cable co., LTD
mobile phone :18613733995
site:Xinxiang fengquan district xinxiang xinxing road west section
Low smoke halogen free power cable is a popular cable product in the market at present, no matter from the material, or from the performance, it is better than other products, its characteristics is fire resistance!It is because of this feature, so in many important occasions are very useful!But the market is chaotic, the qualified products on the market must have a pair of fire eyes and golden eyes to be able to, today, teach you to correctly identify low smoke halogen free power cables!
1. Product name identification method for low-smoke halogen-free power cables.Electric wire -- low-smoke halogen-free flame retardant polyethylene insulated electric wire and cable;Cable - low smoke halogen-free flame retardant polyethylene insulated low smoke halogen-free flame retardant polyethylene sheathed power cable.Imitation products generally have a little different name, such as polyethylene insulation low-smoke halogen-free sheath flame retardant power cables and so on.
2. Skin burning method for identification of low-smoke halogen free power cables.Ironing the insulation layer with an electric soldering iron should not have obvious sag, if there is a larger sag it indicates that the insulation layer used in the material or process defects.Or barbecue with lighter, should be not easy to ignite under normal circumstances, the insulation layer of the cable is still relatively complete after a long time of combustion, there is no smoke and irritating smell, and the diameter has been increased at the same time.If it is easy to light, it can be determined that the insulation layer of the cable is not made of low-smoke halogen-free material (probably polyethylene or crosslinked polyethylene).If there is a large amount of smoke, the insulation layer is made of halogen.If the insulation surface falls off seriously and the diameter does not increase significantly after long-time combustion, it indicates that the appropriate irradiation crosslinking process has not been carried out.
3. Hot water immersion method for identification of low-smoke halogen-free power cables.Put the core wire or cable in 90 ℃ hot water immersion, insulation resistance will not normally fell sharply and keep above 0.1 M Ω/Km.Ω such as insulation resistance fell sharply even less than 0.009 M/Km, then without proper irradiation crosslinking process.(polyethylene or crosslinked polyethylene insulation material is not applicable to this method identification, can be identified by the method described in article 2 above).
4. Density contrast method for identification of low-smoke halogen-free power cables.Low smoke halogen free material density than water, you can peel off a little insulation layer into the water, if floating on the surface of the water, it is certainly not low smoke halogen free material.