1 for rated voltage of 3 ~ 500kV isolation switch, load switch and high-voltage fuses. 2. Isolating switches, load switches and high-voltage fuses to the scene after the inspection, should meet the following requirements: First, all the parts, accessories, spare parts should be complete, no damage and corrosion damage. Second, porcelain pieces should be crack-free and damaged. 3. Isolating switches, load switches and high-voltage fuses shipped to the scene after the custody should meet the following requirements: First, the equipment should be stored in accordance with their different requirements indoor or outdoor smooth, no water venues. Second, equipment and porcelain pieces should be placed securely, not to be dumped; contacts and operating mechanism of the metal transmission parts should be anti-rust measures. Custom Metal Parts,Cnc Machining Aluminum,Brass Car Parts,Cnc Machining Service Dongguan Jiaxing Precision Machinery Co., Ltd. , https://www.jiaxingmachinery.com