Seven tips to quickly identify poor quality cables

Date：2021/1/8　　Clicks：1148

How to identify poor-quality cables? Here are seven tips for identifying poor-quality cables. I hope it will help you!

1. Look closely at the label printing, the handwriting is blurred and the address is unknown. It means to look at the printed words on the label and the insulating skin. If there are typos, or the printing is of different shades, or the words are blurred, pay attention to it.

2. Twist the insulation skin by hand, the color will fade and the characters will be of poor quality. Refers to rubbing the insulating sheath with your fingers. Some inferior insulated wires are easy to fade, especially the red wire. This problem occurs. After rubbing, the color of the thread is left on the finger or the words printed on the thread are wiped off Generally inferior quality line.

3. Use your fingernails to draw and pinch the line, so that the line will be cut and the skin will be off. Refers to the use of nails to scratch and pinch the insulating skin. The ones that can be scratched or pinched are generally inferior threads.

4. Repeatedly bend the insulated wire and break it three to four times. Refers to repeated bending of insulated wires. Inferior wires are generally of poor quality, and the insulation layer will break after being bent 3 to 4 times.

5. Use fire to ignite the wire insulation and spontaneously ignite away from the open flame. It refers to the inferior wire that ignites the insulating layer and can spontaneously combust after leaving the open flame.

6. The wire core is usually aluminum and copper, the color becomes darker and lighter. It means to look at the color of the wire core, the color of inferior wires is dark and without metallic luster.

7. Measure the inner diameter and outer diameter carefully, and look at Pisone when weighing. It means that if it is not determined by the above 6 methods, the outer diameter and core diameter of the insulated wire can also be measured. The allowable error is ±10%. If the measured value exceeds the allowable error, it is basically a low-quality insulated wire.