The 69kV XLPE cable was developed by Hong Tai in 1990 and has passed type test by the Taiwan Power Company. In 1997, the 161kV XLPE cable for substation connection lines was also subjected to the above test. In 1999, a technical cooperation agreement was signed with Fujikura Ltd. of Japan for the production of 69～161kV extra high voltage cables. In 2000, the 161kV XLPE cable for underground transmission lines passed test by the Taiwan PowerCompany.

Extra XLPE cables are suitable for distribution in underground power transmission and ransformation systems. High voltage and large transmission current mean that higher quality equirements are placed on cables. The company uses high-purity raw materials, clean production environments, strict quality management, and fully automated production lines to meet the quality requirements for Extra XLPE cables.

69～161kV  XLPE Cable 

1. The conductor temperature not exceeding 90°C for normal operation, 105°C for emergency overload conditions, and 250°C for short-circuit conditions.
2. The conductor is of a circular compact stranded construction. For conductors over 800mm², a segmented, circular compact stranded construction is used to reduce the transmission loss caused by the skin effect.
3. Excellent heat resistance, fire resistance, and electrical properties.
4. Improvements in materials and manufacturing technologies have significantly improved the quality of Extra XLPE cables and made them suitable for a wider range of applications. Extra XLPE cables have become mainstream in high voltage cable, resulting in their superior quality and service life compared to conventional high voltage cables. 
5. The 69kV XLPE and 161kV XLPE cables comply with the TPC A007 and TPC A046 standards, respectively.