Changlan Technology Group Co.,Ltd, former name as "Changsha cable accessory co.,ltd.""Changlan electric technology",which was established in 1958, witnessed and participated in the high-speed development of China in the past 66 years. Based on advanced technology, high quality products and reliable services, Changlan contributed to the construction of numerous major national projects, power transmission projects and railway transportation projects in China and worldwide.

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66 years

continuous innovation


Over 65 countries


Over 53 patents

525 kv

Up to 525kv DC/AC



Having independent technology and formulas, Changlan are able to R&D our own DC/AC 1-500kV cable accessories. Experinces for 66~230kV cable termination and joint are over 20years, for 320kV, 400kV, 500kV AC cable accessories are over 8years, for DC ±320kV and above are over 5years. Meanwhile, after more than 20 years of technological accumulation, we have rich experiences in product projects, strict quality control measures, a high-quality service team, and provide consulting and research and development services for special projects.

500kV AC-2022-TB Hydro-power Project, China; 500kV AC-2021-Unique Meghnaghat 588.31 MW CCPP, at Sonargaon, Narayanganj, Bangladesh; 500kV AC-2022-500kV Fujian Xiamen Pumped Storage Power Station Project, China;