Long Cable Electric Technology Co., Ltd. has recently achieved a significant milestone by obtaining the "New Product Appraisal Certificate" from the China Electricity Council. The company's 290/500kV XLPE insulated power cable accessories and ±525kV (±535kV) XLPE insulated DC cable accessories have successfully passed the new product and technology evaluation, filling a critical gap in the domestic market and reaching an internationally advanced level. This development marks a major breakthrough for China's high-voltage cable industry.
Founded in 1958, Long Cable Electric Technology has been a key player in the design, manufacturing, and construction of cable accessories. Over the past six decades, the company has contributed to numerous national infrastructure projects, including major energy, power transmission, and rail transit initiatives. With cutting-edge technology and a commitment to quality, the company has consistently delivered reliable solutions that meet global standards.
As China continues to expand its ultra-high voltage (UHV), long-distance, and heavy-duty transmission projects, the demand for advanced high-voltage cable systems has surged. However, the domestic market has long relied on imported cable accessories, which has limited the competitiveness of local manufacturers. Foreign companies often use their proprietary accessory technologies to gain an advantage in bidding processes, making it difficult for domestic firms to compete effectively.
To address this challenge, Long Cable Electric Technology has invested heavily in R&D and successfully developed two groundbreaking products: 290/500kV XLPE insulated power cable accessories and ±525kV (±535kV) XLPE insulated DC cable accessories. These products have undergone rigorous testing, including type tests and pre-qualification assessments, and have met all relevant international and national standards such as IEC 62067 and GB/T 31489.1.
The appraisal committee praised both products, noting that they not only meet the highest technical requirements but also represent a leap forward in domestic cable technology. The 500kV power cable accessories were recognized as reaching international standards, while the ±525kV DC cable accessories filled a crucial domestic gap.
This achievement is a game-changer for the company, enhancing its market position and technological capabilities. It also signals a shift in the industry landscape, breaking the long-standing technical barriers that have hindered the growth of domestic UHV cable systems. As these new products move toward mass production, they are expected to reshape the competitive dynamics of the market and boost the overall development of China's cable industry.
(Source: Long Cable Electric Technology Co., Ltd., Cable Network, Zhongcai.com)
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