Procurement Guide for Cable Kraft Paper

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

Product Overview: Cable specific kraft paper is made of high-purity wood pulp, which has high temperature resistance (long-term temperature resistance of 105 ℃), sulfur resistance, high insulation (breakdown voltage ≥ 8kV/mm), and lightweight characteristics (density 0.7-0.9g/cm³). It is an ideal material for shielding layer protection of oily cables and ultra-high voltage cables.

Key performance indicators

• Voltage resistance: No breakdown through 10kV/mm voltage test (IEC 60243 standard).
  

• Tear resistance: Longitudinal tear resistance strength ≥ 30N (GB/T 455.1 standard).
  

• Environmental friendliness: Certified by FSC, the raw material is sustainable forest pulp.

Application scenarios

Suitable for insulation buffer layer of oil immersed cables (such as ZQD22), ultra-high voltage power cables (500kV and above), and motor electromagnetic wire winding.

Procurement precautions

• Weight selection: The conventional weight is 80-120g/m², and it is recommended to be ≥ 150g/m²for oil immersed scenarios.
• Moisture proof packaging: Choose vacuum aluminum foil packaging with a moisture content of less than 5%.
• Cost analysis: Low prices may be due to secondary recycling materials. Recycled pulp products are 30% cheaper but have poor performance. Avoid choosing low-priced products without testing reports.

Frequently asked questions

Q: Will kraft paper layer in an oil immersed environment?

A: Choose impregnated kraft paper (oil absorption rate ≤ 3%) and pass the IEC 60502-1 oil resistance test.

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