In addition to meeting the performance of ordinary cables, the special cables for wind power generation must also meet the basic requirements of small bending radius and frequent bending and torsion resistance; In addition, it also meets the requirements of low temperature construction, because the special cables for wind power generation are mostly used in areas with large climate changes, such as high altitude areas, where the climate is cold and the temperature difference between day and night is large, so the wind power generation cables must also meet the operating conditions of ambient temperature - 40 ℃ -+90 ℃ and operating temperature - 40 ℃ -+100 ℃. Our company has been committed to the research of special cable technology for wind power generation for many years. With reference to the German DIN VDE standard, we have optimized the conductor structure of special cable for wind power generation (using Category 6 conductor+aramid yarn stranding process), and selected EPDM rubber insulation with excellent electrical performance and low-temperature resistant and high tensile elastomer sheath materials (such as polyurethane), so that the electrical and mechanical properties of the cable have reached the advanced level of the industry, Overcome conductor core breaking and sheath bulge. Reduce power outage maintenance accidents during cable operation, and increase line safety and reliability. The special cables for wind turbines are divided into power cables and control cables. The advantages of cables are as follows:
It has good low temperature resistance, abrasion resistance, fatigue resistance, weather aging resistance, microbial resistance, and very good corrosion resistance to oils and chemicals. Ordinary cables do not have wear resistance and corrosion resistance.
The torsion resistance and bending performance are good: the finished cable can withstand the torsion resistance test with 360 ° torsion angle and no less than 10000 times under the low temperature environment of - 40 ℃. The conductor shall not break and the sheath surface shall not crack after the cable test. Ordinary cables are not suitable for twisting at low temperatures.
The applicable ambient temperature is - 40 ℃～ ＋ 90 ℃, and the operating temperature is - 40 ℃～ ＋ 100 ℃. The operating temperature of ordinary cable is 0 ℃~70 ℃. The service life of the cable shall not be less than 15 years.