In daily life, PVC is widely used in power cable because of its stable performance and low price. How to identify PVC, the most convenient and most common method is to test its softening or melting temperature range: 75; its combustion condition: after ignition; burning flame Status: Upper yellow green smoke; The condition of leaving fire; odor: pungent sour taste. But there is also a cable material PE used in wire and cable, so how to distinguish between the two different cable materials?
Touch with the hands of the lubrication, the surface like a layer of wax (chemical called wax), which is non-toxic polyethylene film bag, and PVC film feel some hair sticky.
2.Hand jitter Method
With the hand jitter, the sound is crisp, the quality is easy to float is polyethylene film bag. The low volume of the hand jitter is polyvinyl chloride film bag.
Flammable fire, the flame is yellow, burning paraffin-like oil dripping, and candles burning when the gas, is non-toxic polyethylene film bag. If it is not easy to burn, from the fire is extinguished, the flame is green, PVC film bag.