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Method for inspection of three-layer insulation wires

Method for inspection of three-layer insulation wires

1. Winding test of three-layer insulation wire: Take a sample with a length of at least about 305mm and wind it 10 times on a circular rod equivalent to the outer diameter of the sample at a speed of 1-3 turns/second. The tension borne by the wire during winding is just enough to make the wire in close contact with the circular rod, and it should be noted that there should be no elongation of the sample. After winding, the sample should be visually inspected and there should be no deep or conductor cracks in the insulation layer.

10

2022

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01

Knowledge about three-layer insulated wires

Knowledge about three-layer insulated wires

(1) Storage and usage environment: The storage conditions for three-layer insulated wires are: ambient temperature is -25-30 ° C, relative humidity is 5% -75%, and storage period is one year. It is prohibited to store three-layer insulated wires in high temperature, high humidity, direct sunlight, and dusty environments. For three-layer insulated wires that have exceeded their storage period, they must undergo insulation breakdown voltage, withstand voltage, and windability tests again before use.

12

2021

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11

What is a high-temperature twisted square wire

What is a high-temperature twisted square wire

1. Make the coil slot full and pass a larger current to avoid overheating of electronic products, making it more suitable for high current loads.

12

2021

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11

What are the causes of insulation layer cracking

What are the causes of insulation layer cracking

After receiving some insulation wires, many customers do not pay attention to how to store them, so they directly put them in the warehouse without paying attention to the room temperature. If the temperature is too high or too low, it will damage the insulation layer, making it hard or soft. When taken out for use or processing, it will cause it to crack.

12

2021

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11

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