There are many types and sizes of wires on the market. In addition, there are many kinds of inferior wires manufactor. Many consumers don’t know where to start when choosing wires. We shared the general selection points before. Now let’s take a closer look at the simple and important aspects of insulation.
Why is it simple? Because the cost of the insulating layer is relatively low, even if the insulating layer is not good, the quality of the wire can be imagined. Moreover, the insulation does not require any technology or experience. As long as you follow the steps, you can select high-quality wire.
How to choose?
1. Tension
High quality insulating material is not easy to deform and break when pulling.
2. Shearing
You can cut a section and carefully observe the cross section of the insulation. If there are no bubbles and the packing is tight, you pass.
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Take out a small piece of wire and bend it at will. There is no fracture or white mark at the bend. The AAC Cables are smooth and tough.
4. Burnish
Repeatedly rub the insulating layer, the insulating layer is intact, the surface is bright, indicating that the material is firm.
5. High temperature resistance
The insulating layer will not change color and dissolve when exposed to sunlight. It has super stable performance, stable molecular structure at high temperature, and is not easy to decompose. High quality insulators can have a variety of resistances.
6. Low smoke
If the wire is ignited, poor insulation will produce a lot of black smoke, while high-quality insulation only has a little white fog. In case of fire, strong black smoke will hinder escape. The visual distance of high-quality insulation material can reach 60 meters, greatly improving the escape probability.
7. Tasteless
The inferior insulation layer has a pungent smell, and the high-quality environmental protection insulation material will not produce a pungent smell in the case of combustion, which is not conducive to escape.