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        To improve the safety of power system operation and standardization of equipment, the operation maintenance department of State Grid Corporation of China and China Electric Power Research Institute conducted lots of researches and organized 12kV handcart switch cabinet standardization design workgroup. EETI participated in the activity actively and organized relevant technical staff to study related technical documents of the standardization workgroup during the activity.

        Recently, guided and witnessed by standardization workgroup of China and China Electric Power Research Institute and China High Power Testing Laboratory Liaison, EETI successfully completed the designated tests for 12kV handcart switch cabinets KYN28A-12/1250-25, KYN28A-12/1250-31.5, KYN28A-12/2500-31.5, KYN28A-12/3150-40 and KYN28A-12/4000-40 of Shenyang Huali Electric Appliance Group (Shenyang Huali Energy Equipment Manufacturing Co., Ltd). The test was conducted by reference to CHPTL [2017] No. 7 12kV Handcart Switch Cabinet Standardization Design Prototype Certification Test Program. Tested products were inspected in the manufacturing company according to 12kV Handcart Switch Cabinet Standardization Design Program prepared by State Grid Corporation of China.

        Thanks for support and guidance of China Electric Power Research Institute, China High Power Testing Laboratory Liaison, Jilin Electric Power Company and Jiangsu Electric Power Company to the test and support, affirmation and trust of Shenyang Huali Electric Appliance Group to EETI. EETI will continue the mission of improving electric appliance quality to make contributions to electric appliance quality improvement and safe power grid operation of power transmission and distribution industry.