Electrical equipment operating state transition from the off state to the sub-

When the electrical device from the operating state to the breaking state or from breaking state to the running state, they need to be operated by the electrical switch. To meet the mining system work, you need to take all the necessary electrical switches  electri cenergy meter . Mine Maintenance of electrical switch electrical switching system, the importance of coal mine safety work, largely depends on the daily maintenance of electrical equipment and maintenance work. As coal enterprises to exploit electric meter  safety performance requirements increase supply, repair and maintenance management increasingly apparent importance of the work, electrical switch maintenance costs account for the proportion of corporate overhead costs are also rising.