Does not apply where there is isolation switch: ⑴ conductive or chemical action of gases, vapors place; ⑵ of fire or explosion hazard (if gas pit); ⑶ a lot of dust gathering place; ⑷ strong vibration and or impacts; ⑸ particularly damp places and tropical regions. 40.5KV sort of national output isolation switch Xi'an Huayi Sort by: Warm congratulations Xi'an, Chongqing Huayi ranked seventh in the country in the national high-voltage switch disconnectors main products industry 40.5KV isolation switch production to 189 units per month, ranking seventh in the country. Xi'an isolation switch, isolation switch, the power provided by the Xi'an Huayi Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!