Today I mainly show you how to select high-quality wires through the insulation layer. The insulation layer is an indispensable part of the wire structure and is also the most intuitive. It can protect the conductor from mechanical damage and chemical corrosion, without contact with water vapor Contacting conductors for electric shock, etc. can enhance the mechanical strength and prolong the service life. You can refer to the following six methods to select high-quality wires through the insulation layer.
How to select high-quality wires by insulation layer
01. Pull
The insulating material of high-quality wires has certain mechanical strength and flexibility, and the wires are not easy to deform and break when pulled hard.
02. Cut
Cut off a section of wire and observe whether the inner core of the wire is in the center of the wire. If it is not in the center, the insulation layer on one side will be thinner, which may be broken down by the current.
03. Fold
Bend a small piece of wire freely, if there is no break or white mark at the bend, the quality is good.
04. Grinding
Keep rubbing the insulation, if the surface of the insulation is bright and not visibly damaged, it is good quality.
05. Sun exposure
Exposing the insulating layer to sunlight, the insulating layer will not change color and dissolve, and it has strong stability. At high temperature, the molecular structure is stable and not easy to decompose. High-quality insulating properties with multiple resistances.
06. Ignite
Use a lighter to ignite the wire, and it will ignite by itself after leaving the flame. It is a wire with poor flame retardant performance, while a better flame retardant wire is ignited and ignites, and it will extinguish itself after leaving the flame.
