建筑工地的起重机、井字架,门式架和脚手架等一般都很高,材料堆积也多,万一遭到雷击,不仅施工人员的生命有危险,而且还容易引起火灾,造成严重的事故。因此,对雷击必须引起应有的重视。建筑物施工期间,可采取以下一些防雷措施:1.施工时应按照正式设计图纸的要求,先做全部接地设备。同时应当注意跨步电压的问题。 The cranes, derricks, gantry and scaffolding on the construction site are generally very high and the materials are stacked. In case of a lightning strike, not only the lives of construction workers are in danger, but also fires are easily caused and serious accidents are caused. Therefore, due attention must be paid to lightning strikes. During the construction of a building, the following lightning protection measures may be taken: 1. All grounding equipment shall be constructed in accordance with the requirements of the formal design drawings. At the same time should pay attention to the problem of step voltage.