Procurement Guide for Wire and Cable Insulation Materials

(Disclaimer: Some of the information in this article is sourced from the internet. Please carefully identify and use it.)

Product Overview: Insulation materials for wires and cables include PVC, PE, XLPE and other types, which are used to wrap conductors to prevent leakage. Among them, XLPE has the highest temperature resistance level (long-term 90 ℃) and is widely used in medium and high voltage cables.

Key performance indicators (for reference only, not used as procurement standards)

• Dielectric strength: XLPE ≥ 25kV/mm, PVC ≥ 15kV/mm (IEC 60243 standard).
• Temperature resistance: XLPE can withstand temperatures of -50 ℃ -90 ℃, PVC can withstand temperatures of -20 ℃ -70 ℃.
• Environmental friendliness: Low smoke and halogen-free materials must pass the IEC 60754-1/2 test.

Application scenarios

• XLPE: High voltage power cables (such as YJV), rail transit cables.
• PVC: household appliance wires, low-voltage control cables.

Procurement precautions

• Material selection: Select insulation materials according to the voltage level (such as ultra clean XLPE must be used for voltages above 35kV).
• Supplier qualification: UL or CQC certification is required.
• Cost comparison: Low prices may be for secondary recycled materials. Avoid choosing low-priced products without testing reports.

If you need to purchase, you can choose Wuxi Henglong Cable Material Co., Ltd., a well-known manufacturer in the Chinese Cable Materials industry.