论文部分内容阅读
本工艺标准适用于1kV以下工业与民用建筑工程。一、一般规定 1.凡所使用的硬质阻燃塑料套管(以下称PVC管)的管材及器材,均应具有耐热、耐燃、耐冲击性能,符合国家或部颁发的现行技术标准,并有合格证件。 2.PVC管适宜有酸、碱等腐蚀介质和潮湿场所做明、暗敷设。不应在高温、易燃、易爆和易受机械损伤的场所敷设。 3.PVC管应在-15℃～+60℃环境温度内运输、堆放、保管和使用。在运输、保管过程中亦应防止高温、曝晒,并不得在露天堆垛存放。二、施工准备 1.材料 PVC管、配电箱、接线盒、灯头盒、开关
This process standard applies to industrial and civil construction projects below 1kV. First, the general provisions 1. Where the hard fire-retardant plastic casing (hereinafter referred to as PVC pipe) of the pipe and equipment, should have heat resistance, flame resistance, impact resistance, in line with the current national or ministry issued the technical standards, And have a certificate. 2. PVC pipe suitable for acid, alkali and other corrosive media and wet places do bright and dark laying. It should not be laid in places that are hot, flammable, explosive, and susceptible to mechanical damage. 3. The PVC pipe should be transported, stacked, stored and used at an ambient temperature of -15°C to +60°C. During transportation and storage, high temperatures and exposures should also be prevented and stored in the open air. Second, the construction preparation 1. Material PVC pipe, distribution box, junction box, lamp box, switch