桥架施工方案——中英文.doc

201高压电缆桥架 施工方案 201 HV cable tray installation construction scheme 施工概况 Construction summary 本次施工为201厂房新增高压电缆桥架安装，详见施工图纸E-00-007。编制依据为GB50303-2002。 The project about HV cable tray (new addition) installation , detail on drawing E-00-007. And the compilation basis is GB50303-2002. 施工准备工作 Construction preparation 技术准备工作： 1.Technology ready to work 施工前技术人员必须详细审图，然后要根据工程特点编制施工方案，并编排进度计划。 The engineer should understand drawing before the work,then doing the construction scheme and schedule. 人员准备工作： 2.People ready to work 施工人员上岗必须经过培训，掌握施工工艺、技术操作方法，特殊工种必须持证上岗。 The constructor must be cultivated and grasp construction technology and operation method,the special occupation work with certificate. 3、材料要求： 3.Materials requirement 3.1 高压用电缆桥架，规格为300*100，外刷防火涂料。 3.1 HV cable tray 300*100 with fireproofing painting. 3.2 保护地线使用铜编织带 3.2 Protective grounding use flat copper braid. 3.3 吊架采用成品吊架 3.3 Use finished support 4、施工机具 4.Construction tools 施工机具主要包括：升降机、三级电箱、角磨机。 Construction tools should includes: lift ,three-level distribution box, angle grinder . 施工方法 Construction Method 工艺流程：材料进场检查→弹线定位→支、吊架安装→桥架及金属线槽的安装与调整→保护地线安装。 Construction process: Materials -in check →Ruling and location → Finished support installation → Cable tray installation and adjusting→ protective grounding 弹线定位：根据设计图确定,从始端至终端（先干线后支线）找好水平或垂直线，用粉线袋沿墙壁、顶棚和地面等处，在线路的中心线进行弹线，按照设计图要求及施工验收规范规定，分匀档距并用笔标出具体位置。 1.Ruling and location : according to the drawing,determine the horizon or vertical line from the start to the end,and ruling on the center line along the wall and ceiling or the floor,then according to the drawing and codes,mark the detail location after bisection the measurement. 2. 支吊架安装：支架与吊架所用钢材平直，无显著扭曲。下料后长短偏差在5mm范围内，切口处应无卷边、毛刺。支架与吊架应安装牢固，保证横平竖直。吊架和吊架间距为3米。 2.Finished support installation:Use smooth steel without obvious variant.The deviation in 5mm range after installation,and the incision should be no curled and burr.Ensure the support is fixed and horizontal even verti