finished three workshop production area of 6800 m, the existing staff of about 260 people, mainly responsible for 40.5 ~ 500kv porcelain products and 252kv pole circuit breaker circuit breaker tank assembly tasks. on producing capacity of 126kv circuit breaker gcb produced 100 to 120 units per month, 252kv circuit breaker gcb produced 20 to 30 units per month, 252kv circuit breaker tank produced 10 units per month, 500 kv circuit breaker gcb 5 sets per month.