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在农村进行用电安全检查时,发现有部分民用建筑将塑料护套线直接埋设在粉刷层内,以便省工省料,但潜在的危害是严重的。例如有一幢楼房,铝芯护套线直接埋设,因腐蚀造成对地短路,漏电保护器无法工作,只好忍痛废掉全部暗线改用木槽板布线;另外,塑料层与石灰及水泥中碱、酸等发生化学反应,腐蚀、氧化造成的线内短路也不能避免。因此,我们必须严格执行用电管理部门的明确规定,严禁将塑料护套线直接埋设在水泥或石灰的粉刷层内。
When conducting electricity safety inspections in rural areas, it was found that some civil buildings directly buried plastic sheathing lines in the stucco layer in order to save labor and materials, but the potential hazards were serious. For example, there is a building where the aluminum sheathed wire is directly buried, and the earth leakage circuit breaker is unable to work because of the corrosion caused by the short circuit to earth. It is only necessary to relinquish all the dark lines and switch to the wooden trough board layout; in addition, the plastic layer and alkali in lime and cement, Chemical reactions occur with acids, etc. In-line short circuits caused by corrosion and oxidation cannot be avoided. Therefore, we must strictly implement the explicit regulations of the power management department and it is forbidden to directly lay plastic sheathed wires in the stucco layer of cement or lime.