电气工程施工方案中英文
电气(强电)工程施工方案

电气(强电)工程施工方案(1)电气(强电)工程安装程序1)施工顺序:先地下后地上,先室内后室外的施工原则。
先变电后动力、照明;先预埋后安装。
2)施工程序:施工准备—→预留预埋—→变配电设备安装—→配管配线(电缆)—→控制装置—→照明器具安装—→调试—→分区送电调试—→全系统送电调试。
3)在保证施工进度及创优量工程的前提下,与土建同步,并且紧密配合,做好预留预埋工作。
(2)电气(强电)工程主要施工方法1)防雷接地施工本工程的接地利用建筑物的主筋作为接地极,预留引出线,以备接地达不到设计要求作后备用。
利用基础接地体安装:利用无防水底板钢筋或深基础作接地体或柱内4 根主筋及平台钢筋,按设计图纸尺寸位置,标好位置,将底板钢筋搭接焊好,再将柱主筋(4 根)底部与底板筋搭接焊好,并在室外地面以下将主筋焊好连接板,清除药皮,并将两根主筋用色漆做好标记,以便引出和检查。
接地干线安装:首先进行接地干线的调直、测位、打眼、煨弯,并将断接卡子及接地端子装好,然后按设计要求位置尺寸挖沟,将扁钢放平埋入,接地干线末端露出地面不应超过0.5m,以便接引地线。
引下线暗敷设:先将所需扁钢(或园刚)用手锤进行调直,将引下线运至安装地点,按设计要求随建筑物引上挂好,及时将引下线的下端与接地体焊接好,随着建筑物的逐步增高将引下线敷设与建筑物内至屋顶为止,焊接后应敲掉药皮并刷防锈漆(现浇混凝土除外)。
引下线明敷设:将调直的引下线运送到安装地点,用绳吊升至最高点,然后由上而下逐点固定,直至安装断接卡子处,如需接头或安装断接卡子,进行焊接,焊接后清除药皮刷防锈漆。
避雷网安装:将调直的引下线运送到安装地点,用绳提升至最高点、顺直,敷设、卡固、焊接连接成一体,同引下线连成一体,焊接处清除药皮刷防锈漆及铅油。
均压环安装:直接利用结构内的结构钢筋,用20cm 的连接钢筋头与暗敷的避雷网或楼板内的钢筋相焊接成一体,并与柱筋中引下线连接成一体。
2)PVC 管暗敷设根据设计图纸加工好盒、箱、管弯。
电气工程施工方案

电气工程施工方案1、防雷与接地:本工程为二类防雷建筑物。
本工程防雷与接地系统主要利用建筑物内结构钢筋做接地体引下线及均压环,结构以外的接地等连接采用钢锌扁钢、圆钢、多芯绝缘导线等。
钢锌扁钢、圆钢等应镀锌良好,材质本身不得有裂纹、折皱等,各种型材全部由正规厂家进货并有产品合格证。
各种连接材料如扁钢、圆钢均采用焊接,要求圆钢一律双面焊接,焊接长度不小于6D,扁钢等三面焊接,焊接长度≥2倍扁钢宽度,焊缝平整、饱满,无夹渣、咬肉现象,在砼结构外的各焊点应涂沥青漆二道,以避免腐蚀。
屋面避雷带应涂银粉漆两道。
利用地梁内钢筋作接地装置,通过焊接构成一个良好的接地网,由于工程系统变压器工作接地、保护接地、防雷接地、通信接地等共用接地装置,故要求接地电阻不得大于1Ω。
基础施工时将桩基内两根不小于Φ16主筋采用Φ16圆钢引上与基础底板内上、下两层主筋分别焊通,所有地梁主筋(二根)连通底板接地网,网距不大于3米。
要求采用双面焊接,焊缝长度不小于6D,焊缝饱满,不得存在夹渣咬肉现象,焊渣清除干净。
变配电室内采用-40×4镀锌扁钢沿墙沿地敷设,并通过予埋铁板与公寓接地系统相连。
本工程配电系统采用TN-S系统,PE干线在低压电房与接地点、中性母排焊接连通,各层PE线与PE干线连通。
要求出低压配电柜开始N线(工作零线)与PE线(保护零线)分开,以后不得混接,所有配电箱内均设零排与地排。
本工程中所有电气设备的金属外壳、配线钢管、电气安装的构件、电缆桥架、支架、金属线盒、电缆铠装均需与PE线相连,以确保安全。
电缆桥架外侧、强弱电竖井内自下而上、电缆沟内敷设一根-40×4镀锌扁钢作为专用PE线。
引下线与均压环:利用结构柱内或墙内对角主筋作防雷引下线,主筋通长焊接,搭接材质选用Φ12圆钢,焊缝长度大于6D,采用双面焊,为防止漏焊,并在焊好一个接头后在下一个接头处使用油漆作一标志。
本工程要求在第12、15、18、21层利用建筑物周边的梁、剪力墙内的主筋焊成水平均压环,并利用8mm钢筋将所有引下线、水管、金属金属门窗、栏杆、空调管道焊通。
中英文对照版电气接地方案 Electrical Grounding Plan

Electrical Grounding Plan电气接地方案1.Preparation and Description 编制说明1.1This plan is prepared on the basis of the electrical construction drawings submitted byThe IT Electronics Eleventh Design & Research Institute Scientific and Technological Engineering Corporation Ltd. 本方案根据信息产业电子第十一设计研究院科技工程股份有限公司提供的电气施工图的内容。
1.2This plan is based on the RFP document and relative technical specifications provided by Bayer. 本方案根据拜耳的招标文件和有关技术说明。
1.3GB Code for Construction of Electrical Engineering国家电气工程施工规范标准1.3.1Electrical Construction Drawings submitted by The IT Electronics Eleventh Design &Research Institute Scientific and Technological Engineering Corporation Ltd.信息产业电子第十一设计研究院科技工程股份有限公司提供的电气施工图。
1.3.2Code for Construction and Acceptance of Grounding System of Electrical Installation WorksGB50169-2006电气装置安装工程接地装置施工及验收规范GB50169-20061.3.3 Standard of Handover Testing for Electrical Equipment of Electrical Installation WorksGB50150-2007电气装置安装工程电气设备交接试验标准GB50150-20071.3.4 Code for Acceptance of Quality of Building Electrical Construction GB50303-2002建筑电气施工质量验收规范GB50303-20022.Main Quantities 工程主要工程量2.1 Main Quantities for Electrical Work 电气主要工程量S.N. 序号Description名称Unit单位Quantity数量1 SS Plate 不锈钢板400*200*10mm 块72 SS flat steel 不锈钢扁钢-40*4mm m 2503 Hot-dipped Galv. Flat steel 热镀锌扁钢-40*4mm m 16003.Construction Method and Technical Requirements施工方法及技术要求3.1 Installation of Grounding and Lightning Device 接地及避雷装置的安装3.1.1 Grounding device shall be installed according to the design requirement.接地装置的安装应按设计要求进行施工。
建筑电气工程施工方案完整版

编号:TQC/K796建筑电气工程施工方案完整版Through the proposed methods and Countermeasures to deal with, common types such as planning scheme, design scheme, construction scheme, the essence is to build accessible bridge between people and products, realize matching problems, correct problems.【适用制定规则/统一目标/规范行为/增强沟通等场景】编写:________________________审核:________________________时间:________________________部门:________________________建筑电气工程施工方案完整版下载说明:本解决方案资料适合用于解决各类问题场景,通过提出的方法与对策来应付,常见种类如计划方案、设计方案、施工方案、技术措施,本质是人和产品之间建立可触达的桥梁,实现匹配问题,修正问题,预防未来出现同类问题。
可直接应用日常文档制作,也可以根据实际需要对其进行修改。
一、电气工程概况该工程建筑电气主要由照明配电系统、防雷接地系统、闭路电视系统及宽带网系统等,电源采用埋地引入,在各AP箱总开关前零线与保护接地体可靠连接(做重复接地),保护地线-40×4镀锌扁钢与接地体可靠连接,接地体与防雷共用。
二、施工前的准备工作1、技术准备施工前技术人员必须详细审图,对照招标文件,提出问题并在图纸会审时落实。
然后要根据工程特点编制施工方案,并编排进度计划。
根据施工方案提出材料计划,并向施工人员下达详细的技术交底。
2、现场准备施工道路、施工用水、临时用电和场地有总承包方统一规划,生产、办公、库房等临时设施由总承包方提供,现场设办公室、库房各一间,材料随进随用。
电气工程施工方案范文

一、工程概况1. 工程名称:XX住宅小区电气工程施工2. 工程地点:XX市XX区XX街道3. 工程规模:总建筑面积约XX万平方米,共计XX栋住宅楼4. 工程类型:住宅小区电气工程5. 工程建设单位:XX房地产开发有限公司6. 工程设计单位:XX建筑设计院7. 工程施工单位:XX电气安装工程有限公司二、编制依据1. 《建筑电气工程施工及验收规范》(GB 50253-2013)2. 《住宅设计规范》(GB 50096-2011)3. 《低压配电设计规范》(GB 50054-2011)4. 工程设计图纸及相关资料5. 施工合同及施工组织设计三、施工组织机构1. 施工项目经理:负责整个工程的施工组织、协调和管理2. 施工技术负责人:负责施工技术指导、监督和验收3. 施工质量负责人:负责工程质量监督、检查和验收4. 施工安全负责人:负责施工安全监督、检查和验收5. 施工人员:按照施工计划进行现场施工四、施工部署与施工方法1. 施工顺序:按照先地下后地上、先主后辅、先干线后支线的原则进行施工2. 施工工艺流程:(1)施工准备:包括图纸会审、材料设备采购、施工人员培训等(2)土建配合:与土建工程同步进行,如电缆沟、电缆桥架等施工(3)电气设备安装:包括配电箱、开关箱、灯具、插座等安装(4)电缆敷设:按照设计要求进行电缆敷设,包括电缆桥架、电缆隧道等(5)防雷接地:按照设计要求进行防雷接地施工(6)电气调试:对电气设备进行调试,确保系统正常运行(7)竣工验收:对施工质量进行验收,确保工程质量达到要求3. 施工方法:(1)电缆敷设:采用电缆桥架敷设,电缆在桥架内固定,确保电缆安全可靠(2)配电箱、开关箱安装:按照设计要求进行安装,确保设备安装牢固、接线正确(3)灯具、插座安装:按照设计要求进行安装,确保灯具、插座安装牢固、接线正确(4)防雷接地:按照设计要求进行施工,确保防雷接地系统可靠有效五、质量保证措施1. 严格执行施工规范和操作规程,确保施工质量2. 加强施工人员培训,提高施工技能水平3. 施工过程中,加强质量检查和验收,发现问题及时整改4. 施工完成后,进行全面的竣工验收,确保工程质量达到要求六、安全、防火与文明施工1. 严格执行安全操作规程,确保施工安全2. 施工现场防火措施到位,确保消防安全3. 施工现场文明施工,保持施工现场整洁有序4. 加强施工现场环保措施,减少施工对环境的影响七、施工进度计划1. 施工准备阶段:XX天2. 土建配合阶段:XX天3. 电气设备安装阶段:XX天4. 电缆敷设阶段:XX天5. 防雷接地阶段:XX天6. 电气调试阶段:XX天7. 竣工验收阶段:XX天总计:XX天八、资源需求1. 人力资源:施工人员、技术人员、管理人员等2. 物力资源:电缆、桥架、配电箱、灯具、插座等设备3. 质量检测设备:绝缘电阻测试仪、接地电阻测试仪等4. 施工机具:电焊机、切割机、吊车等九、总结本电气工程施工方案旨在确保工程质量和施工进度,实现施工安全、文明、环保的目标。
电气工程施工方案(范本)

电气工程施工方案(范本)一、项目概况本项目为某工业园区的新建电气工程,涉及到变压器室、配电房、照明系统、供电系统等内容,总建筑面积为10000平方米。
二、施工准备工作1. 周边环境调查:对工程周边环境进行调查,了解周边土地利用情况、交通状况、施工时段等信息,为施工做好准备。
2. 施工人员招聘:根据施工需要招聘电气工程师、电工等相关工程人员,确保施工过程中人员的配备充足。
3. 施工设备购置:购置必要的施工设备,包括起重机、搅拌机、电焊机等,以保证施工的正常进行。
4. 施工材料采购:根据工程设计要求,采购供电设备、导线、开关等施工所需材料。
三、变压器室施工1. 施工程序:根据设计图纸,确定变压器室的位置和大小,进行土地平整、基础浇筑、围墙建造等工作,确保变压器室的建造符合相关标准要求。
2. 设备安装:安装变压器、开关设备、避雷器等设备,按照相关规范做好接地、绝缘等工作,确保设备安全运行。
3. 调试验收:完成设备安装后,进行设备调试和验收,确保变压器室的设备正常运行。
四、配电房施工1. 建筑施工:确定配电房的位置和建筑结构,进行配电房的建筑施工,确保建筑结构稳固、符合要求。
2. 电气设备安装:安装配电设备、开关设备、主配电盘等设备,按照相关规范进行接线和接地等工作,确保电气设备安全运行。
3. 布线接地:进行电气设备的布线和接地工作,确定配电房的供电线路和接地情况,确保所有设备安全可靠。
五、照明系统施工1. 照明设计:根据建筑设计要求,设计照明系统的布局和灯具的选择,确保照明系统能满足建筑内的光照需求。
2. 灯具安装:根据设计要求,安装各处的照明灯具,确保灯具的位置和亮度符合设计要求。
3. 灯具调试:完成灯具安装后,进行灯具的调试和亮度检测,确保照明系统能满足建筑内的照明需求。
六、供电系统施工1. 施工程序:根据设计图纸,确定供电系统的布置和线路敷设,进行供电系统的施工工作,确保供电系统的建造符合相关标准要求。
电气工程(灯具、开关面板、插座、配管、穿线)施工方案

电气工程(灯具、开关面板、插座、配管、穿线)施工方案一、强电施工方案(一)、配电箱安装1、工艺流程:开箱检验--测量定位--基础安装-一箱(柜)安装-一箱(柜)内配线-f二次摇测-f质量验收-f成品保护。
2、开箱检查:(1)、安装单位、供货单位、建设单位共同进行,并做好检查记录。
(2)、按照设备清单、施工图纸及设备技术资料,核对设备本体及附件、备件的规格型号应符合设计图纸要求;附件、备件齐全;产品合格证件、技术资料、说明书齐全。
(3)、电箱本体外观检查应无变形,油漆完整无损。
(4)、配电箱内部检查:电器装置及元件、绝缘瓷件齐全,无损伤、裂纹等缺陷。
3、弹线定位根据设计要求找出配电箱(柜)的位置,并按照配电箱的外形尺寸进行弹线定位。
4、配电箱安装:(1)、配电箱的安装标高、位置符合规范及设计要求;(2)、配电箱必须用开孔器开孔,且一管一孔;(3)、配电箱内管口应排列整齐,锁紧装置符合要求;箱内导线绑扎成束,排列有序、接地明显;导线压接牢固,不外露线芯;(4)、配电箱内导线色标正确;(5)、照明箱内要设零线(N)和保护地线(PE)汇流排,零线和保护地线经汇流排配出;(6)、配电箱的接地装置必须明显、牢固。
5、配电柜安装(1)、配电柜体及柜内设备与各构件间连接应牢固。
柜本体有明显、可靠的接地装置,装有电器的可开启的柜门用软导线与接地的金属构架做可靠的连接。
成套柜装有供携带式接地线使用的固定设施。
(2)、根据产品技术文件柜体实际安装尺寸和固定螺栓安装孔距尺寸,测量出槽钢柜架的几何尺寸。
框架加工完毕,配合土建确定地面基准线后,进行框架安装,用水平尺,小线找平直,再固定牢固,基础型钢应将地线焊接好,保证接地可靠。
基础型钢安装后,其顶部宜高出抹平地面50mmo (3)、基础型钢安装的允许偏差(表5.4.5-1):表、多台低压配电柜按顺序排列安装,按顺序号逐台就位。
各柜连接紧密横平竖直,无明显缝隙,其安装的允许偏差(表5.4.5-2):表5.4.5-26、绝缘摇测(1)、导线、电缆敷设完毕后,要及时进行绝缘摇测。
工程施工常用英语

工程施工常用英语1. Construction Site1.1 Construction site: a piece of ground where construction work is taking place.1.2 Site layout: The arrangement of structures, utilities, and equipment on a construction site.1.3 Temporary facilities: Temporary structures set up on a construction site to facilitate the construction process, such as temporary offices, restrooms, and storage areas.1.4 Safety signs: Signs placed around a construction site to warn workers and visitors of potential hazards.1.5 Site amenities: Facilities provided on a construction site for the comfort and convenience of workers, such as break areas, water coolers, and restrooms.2. Construction Equipment2.1 Excavator: A large machine used for digging and moving earth and rocks.2.2 Bulldozer: A heavy-duty machine equipped with a wide metal blade used for pushing earth and rocks.2.3 Crane: A tall, long-armed machine used for lifting heavy materials and equipment on a construction site.2.4 Concrete mixer: A machine used to mix and transport concrete on a construction site.2.5 Forklift: A small vehicle equipped with a lifting mechanism used for moving heavy materials and equipment.3. Construction Materials3.1 Concrete: A mixture of cement, water, and aggregate used as a building material.3.2 Steel: A strong and durable metal commonly used in construction for structural elements.3.3 Wood: A versatile material used for framing, finishing, and other construction purposes.3.4 Bricks: Small rectangular blocks made of clay or concrete used for building walls, pavements, and other structures.3.5 Asphalt: A black, sticky substance used for surfacing roads and pavements.4. Construction Processes4.1 Excavation: The process of digging and removing earth and rocks from a construction site.4.2 Foundation: The base of a building that supports the structure and distributes its weight to the ground.4.3 Framing: The process of constructing the basic structure of a building using wood or steel beams.4.4 Roofing: The process of installing a protective covering over a building to prevent water infiltration.4.5 Finishing: The final stage of construction that involves painting, flooring, and other cosmetic touches.5. Construction Safety5.1 Personal protective equipment (PPE): Clothing and equipment worn by workers to protect them from workplace hazards.5.2 Fall protection: Measures taken to prevent workers from falling from elevated surfaces, such as guardrails and safety harnesses.5.3 Hazard communication: The process of informing workers about potential hazards in the workplace and how to avoid them.5.4 Emergency response: Procedures put in place to respond to accidents, injuries, and other emergencies on a construction site.5.5 OSHA regulations: Safety guidelines set by the Occupational Safety and Health Administration to protect workers on construction sites.6. Construction Management6.1 Project manager: The person responsible for overseeing a construction project from start to finish.6.2 Scheduling: The process of creating a timeline for a construction project and assigning tasks to workers to ensure it is completed on time.6.3 Budgeting: The process of estimating and tracking the costs of a construction project to ensure it stays within budget.6.4 Quality control: Measures taken to ensure that construction work meets industry standards and client expectations.6.5 Subcontractors: Workers hired by the main contractor to perform specific tasks on a construction project.7. Construction Communication7.1 Daily reports: Written reports submitted by workers at the end of each workday detailing progress, issues, and other relevant information.7.2 Meetings: Scheduled gatherings of project stakeholders to discuss progress, address issues, and make decisions about a construction project.7.3 Email: Electronic messages sent between project stakeholders to communicate important information about a construction project.7.4 Phone calls: Conversations held between project stakeholders over the phone to discuss urgent matters related to a construction project.7.5 Documentation: Written records of important information related to a construction project, such as contracts, permits, and plans.8. Construction Challenges8.1 Weather: Adverse weather conditions, such as rain, snow, and extreme temperatures, can delay construction work and impact worker safety.8.2 Supply chain disruptions: Issues with the timely delivery of construction materials and equipment can cause delays and increase costs.8.3 Regulatory compliance: Meeting government regulations and building codes can be challenging and time-consuming for construction projects.8.4 Labor shortages: Shortages of skilled workers in the construction industry can make it difficult to complete projects on time and within budget.8.5 Design changes: Changes to the original plans and specifications of a construction project can lead to delays, cost overruns, and conflicts among stakeholders.In conclusion, construction projects involve a wide range of processes, materials, equipment, and challenges that require effective management, communication, and safety measures to ensure successful completion. By understanding and addressing these common aspects of engineering construction, project stakeholders can work together to achieve their goals and deliver high-quality, safe, and cost-effective projects.。
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电气工程 Electric Works一、工艺流程图 Technological process Diagram二、电气安装质量控制点及控制措施 Quality Control Point and Control Measure on Electric Installation三、关键工序技术及质量控制保证措 Key Working Procedure and Quality Control Guarantee Measure1、镀锌钢管明敷设Open Lay of Galvanized Steel Pipe 本工程明敷设钢管均采用了镀锌钢管明敷设工艺。
All open-lay steel pipes in the project adopt the open-lay technology of galvanized steel pipe.(1)工艺流程 Technological process :(2)可上人的吊顶内以及不封闭式竖井通道内的配管为明配管,其管路走向及支架固定均应按明配管要求施工。
The distributing pipe in suspended ceilings that can be entered into and shaft passages that are not closed is open. Both its pipeline direction and support fixture should construct according torequirements of open distributing pipes.(3)按设计要求用冷煨法把管子煨出所需的弯度,20mm以下管径的管子用手板煨管器,25mm以上管径用液压煨管器(或专用煨管器),煨弯处凹扁度应符合规范规定。
Use the simmering method to simmer pipes with a necessary bend according to design requirements. Pipes that the pipe diameter is less than 20mm may adopt a palm simmer pipe machine. Pipes that the pipe diameter is more than 25mm may use a hydraulic simmer pipe machine (or special simmer pipe machine). The concavity at simmering bends should accord with specifications and regulations.(4)断管采用钢锯或无齿锯,需断切的管子尺寸准确,将管子置于压力钳口中心卡紧,断口平齐。
断口处用锉将管口内外锉光,无毛刺,管内铁屑清除干净。
Broken pipes adopt a hacksaw or a saw without teeth. The size of pipe needing to cut should be exact. Put pipes on the center of pressure jaw, and keep fractures even. At fracture, fill the inner or outer of pipe orifice smoothly without any burr. The scrap iron in pipe should be cleaned clearly.(5)管子套丝采用套丝机,根据管子外径及扣距选用相应板牙,将管子用台虎钳或龙门压架钳紧牢固,再把绞板套在管端,均匀用力,不得过猛,随套随浇冷却液。
丝扣不乱且干净清晰,管箍上好后,管口应对严,外露丝扣不应过长。
(外露丝扣不得超过3扣)The mantle fiber of pipe may adopt a mental fiber machine. Select corresponding dies according to the outer diameter and of pipe the pitch. Clamp the pipes firmly by using a vice or planer pressing pliers. Then cover the capstan on pipe ends. Exert evenly not too strongly, and pour the cooling fluid on it while covering. The clasp is not in disorder and cleaned clearly. After pipes are hoped well, pipe orifices should be aimed at accurately. And the exposed clasp should not be too long.(6)镀锌钢管必须采用通丝管箍连接。
不得采用熔焊跨接地线,应在连接处的两端用专用接地卡固定跨接接地线,(镀锌钢管丝扣连接也可以直接用导电膏不采用跨接)如下图所示:Galvanized steel pipes must adopt harness cord pipe hoops to connect. Do not adopt fusion-welding bridge ground wires. Use the special ground card at two ends of joints to fix and bridge the ground wires. The connection of galvanized steel pipes is shown in the following figure.(7)严格按图纸要求敷设管线,坐标与标高准确,固定牢固。
管路敷设按规范要求加装接线盒,管箍连接处采用专用接地线卡跨接地线,线管进入盒、箱处,按设计要求预留孔、洞,待稳住盒、箱后再进行下道工序,需加装护口处应及时加装护口。
Lay pipelines strictly according to requirements in drawing. Both coordinates and levels are accurate and the pipelines should be fixed firmly. The pipe lay is asked to add a terminal box according to specification requirements. The joint of pipe hoop adopts special ground wire cards to bridge the ground wire. Spools are put into boxes. And holes and orifices are asked to pre-leave according to design requirements. Only after boxes have been stable, carry out the next working procedure. A protective orifice should be added in time at the position that needs to add.(8)钢管沿墙过沉降缝敷设,按照下图进行敷设:Lay steel pipes through settlement joints along with wall, and carry out laying according to the following figure.(9)管路固定及接地线做法详见下图:Pipeline fixture and ground wire are shown in the following figure.(10)管路过梁做法详见下图 The pipeline astillen is shown as in the following figure :2、管内穿线 In-pipe Threading (1)工艺流程 Technological Process :(2)选择导线 Select Conducting Wires : 1)根据设计要求选择导线规格及型号。
Select the specification and model of conducting wire according to design requirements. 2)绝缘层抽检:按制造标准,现场抽样检测绝缘层厚度和圆形线芯的直径,线芯直径误差不大于标称直径的1%;常用的BV 型绝缘电线的绝缘层厚度不小于下表规定。
Sampling check on insulating layer: sample to check the thickness of insulating layer and the diameter of round wire core at the spot according to manufacturing standards. The error of wire core should not be more than 1% of the equivalent diameter. The thickness of insulating layer in normal BV insulated wires should not be less than the regulations in the following table.(3)穿带线:穿带线也是检查管路是否畅通,管路的走向及盒、箱的位置是否符合设计及施工图的要求。
Strip: the strip is also one of requirements to check whether the pipeline is dredged as while as the direction of pipeline and the position of box accord with designs and construction drawings.(4)清扫管路 Pipeline Cleaning :1)清扫管路的目的是清除管路中的灰尘、泥水等杂物。