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How to distinguish between irradiated xlpe low smoke halogen-free flame retardant cable

Information Source:Henan Huadong Cable Co., Ltd Release date:2014-03-10

1, the product name recognition method
Wire - irradiated xlpe low smoke halogen-free flame retardant polyethylene insulated wire and cable; cable - irradiated crosslinking low smoke halogen-free flame retardant polyethylene insulation low smoke halogen-free flame retardant polyethylene sheathed power cable. Imitation general names are a little different, such as XLPE insulation low smoke halogen-free sheathed flame retardant power cable etc..

2, skin burn method
Electric soldering iron perm insulation layer should be no obvious depression, if a larger depression the insulation materials used or process defect. Or use the barbecue lighter, under normal circumstances should be not easy to ignite, burning a long time after the cable insulation layer is still intact, no smoke and pungent odor, and diameter increased. As it is easy to ignite, can determine the insulation layer without the use of low smoke halogen-free materials cable (probably polyethylene or crosslinked polyethylene material). If a large smoke, the insulating layer using a halogen containing materials. If long time after burning, the insulation surface loss serious, diameter does not increase significantly, then there is no irradiation crosslinking process appropriate.

3, hot water immersion method
The core or cable soak in hot water in 90 ℃, under normal circumstances, insulation resistance will not decline rapidly and maintained at 0.1M Ω /Km above. If the insulation resistance drops even lower than 0.009M Ω /Km, then there is no after irradiation crosslinking process appropriate. (polyethylene and crosslinked polyethylene insulation material is not applicable to this method of identification, can be identified by method of article second above

4, density contrast method
Low smoke halogen-free materials density than water, can be stripped off a little insulating layer into the water, if floating in the water above, it is definitely not a low smoke halogen-free materials.

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