我国供电设备的检修,普遍实行的都是预防性检修,即计划性检修体制。应修(即到期)必修,修必修好,是设备检修的基本原则。这是我国从50年代起学习前苏联的预防性计划检修制度,以后在总结我国实践经验的基础上,逐步形成的计划检修体制。其大小修的项目内容、周期、工期均按电力主 The maintenance of power supply equipment in our country is generally implemented preventive maintenance, that is, planned maintenance system. Should be repaired (that is, due) Compulsory, repair must be repaired, is the basic principle of equipment maintenance. This is a system of planned maintenance that our country began to learn from the preventive plan of the former Soviet Union from the 1950s onwards and on the basis of summing up China’s practical experience in the future. The size of the repair project content, cycle, duration are based on electricity