某厂区室外中压电缆敷设施工方案-文库吧

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由 A472 变电站引出 3 路 35kV 出线。其中：一路引至 B301S 建筑（35/10kV 变电站）原 1主变，原 1主变电缆将抽出，与新增 4主变连接；另两路引至 35/10kV C581 变电站 1主变和 2主变。回路采用 FSYJY26/35kV1*300mm2 单芯电缆，直埋敷设。去 C581 的两路 35kV 线路，敷设时沿不同路径，以避免两回线路同时受损。Pull three 35V outgoings from A472 substation. Of which: The first outgoing is led to B301S Building (35/10kV substation) the original one main transformer, pull the original one main transformer cable out, and connect to the adding 4 main transformer。 the other two outgoings are led to 35/10kV C581 1 and substation 2 main transformer. Use FSYJY26/35kV1 * 300mm2 singlecore cables for Loop and buried pulling. Two 35kV lines to C581 are laid along different paths to avoid damage of the two loops.2) B301S 建筑（35/10kV 变电站）出线回路：B301S building (35/10kV substation) outlet circuit:由 B301S 变电站引出 7 路 10kV 出线。全部引至 B399 中心制冷站。回路采用 10kV 截面为95mm2 的三芯铠装电缆，由 B301S 南面现有的电缆井引出直埋至装置。Pull 7 10kV outgoings from B301S substation to B399central refrigeration station. Loop uses 10kV threecore armored cable with crosssection 95mm2 and pull out from the existing cable well in the south of B301S then buried lay to the device. 3) C581 建筑（35/10kV 变电站）出线回路：C581 building (35/10kV substation) outlet circuit:由 C581 引出 10 路 10kV 线路，分别为 A507 的四台变压器，B551 的两台变压器，B553TDA 装置氢气压缩机 2 台，C521 盐酸装置氯气压缩机 1 台，盐酸压缩机 1 台提供电源。其中，变压器回路采用 10kV 截面为 185mm2 的三芯铠装电缆，马达回路采用 10kV 截面为 95mm2 的三芯铠装电缆。以上电缆线路均沿规划路径埋地敷设。10 10kV lines led from C581 are used to supply power to A50739。s four transformers, B551 two transformers, B553TDA 2 sets of hydrogen pressor unit, C521 hydrochloric acid chlorine gas pressor unit, and hydrochloric acid pressor unit respectively. Among them, transformer circuit uses x 3core armored cable with 10kV crosssection 185mm2, motor circuit uses threecore armored cable with 10kV crosssection 95mm2. All cable lines will be laid underground along the planning path.4) 接地电缆回路：Ground cable loop: 从 A472 敷设一根 95mm2 裸铜线去 C581，同时从 C581 敷设四根 95mm2 裸铜线，分别引至B55 A50B553 和 C521，作等电位联结。以上电缆线路均沿规划路径埋地敷设。Lay a 95mm2 bare copper wire to C581 from A472. Meanwhile lay four bare copper wires to B551, A507, B553 and C521 for equipotential bonding. All cable lines will be laid underground along the planning path.Overview 4 / 145) 控制电缆回路： Control cable circuit:安装在 HCL 装置现场的 马达上的电流信号通过一根直埋敷设的铠装控制电缆直接接入10KV 开关柜。The current signal installed on motor in the HCL devices site passes through a buried armored control cable direct access to 10KV switchgear.由变压器出线柜去 C581 以外的变压器，采用两根分别为 10*、4* 2 屏蔽铠装控制电缆，由中压转接柜引出，与中压电缆同路径敷设至相关变压器室。其中，10* 电缆直接接至温控箱，4* 电缆可集中从某间变压器室引出，沿桥架至相关 PCS 楼 ATS 柜。Transformer outlet cabis are connected to other transformers not in C581 by using two 10 * , 4 * shield sheathed control cable respectively. The 10 * cable directly is connected to the temperature control box and 4 * cable are led out from transformer room, along the bridge to the relevant PCS floor ATS cabi. 二．编制依据 Compilation Basis1）根据电气包（中压部分）招标文件及招标图纸编制而成。According to Electric package (MV) the tender and tender drawings.2）在充分研究工程的客观情况和施工特点，结合我公司类似工程施工经验的基础上编制的。Based on full study on construction characteristics and objective situation and bined with similar construction experience.3）在本方案编制过程中，严格执行国家现行建筑和安装工程施工及验收规范、规程、标准、设计规范。具体如下：In this pilation process, strictly implement current national construction and installation construction, acceptance norms, procedures, standards, and design specifications. As follows:《电气装置安装工程电缆线路施工及验收规范 GB501682022 》Electrical installation cable construction and acceptance standards GB501682022 《电气装置安装工程接地装置施工及验收规范 GB501692022 》Electrical installation earthing construction and acceptance standard GB501692022 《建筑电气工程施工质量验收规范 GB50303—2022 》Building Electrical Construction Quality Acceptance GB503032022三． 施工工艺流程：Construction Process前期准备→电缆直埋敷设施工→铺沙盖砖→回填土→埋标志桩→挂标志牌Preparation→ Cable buried pulling →spread sand and build bricks → backfill→bury sign stake→ hang signs 四. 前期准备 Preparation 技术准备 Technical Preparation1） 针对本工程特点编审详细的电缆沟施工作业指导书，及时组织图纸会审。Compile particular cable trench construction engineering guide book as per project characteristics and anize promptly drawings joint examination.2) 根据上海市电力建设工程施工工艺实施细则结合本工程实际编写电缆沟施工工艺卡，并组织实施。Compile construction technique cards according to the Shanghai Municipal Electric Power Construction Engineering Construction Technology Implementation Details and anize its implementation.5 / 143) 施工人员全面了解电缆敷设来路、终点及敷设路径。Construction workers have prehensive understanding antecedents, destination, and laying path of laying cables. 材料准备 Material Preparation1) 所有材料规格型号及电压等级应符合设计要求，并有产品合格证。All material specifications, models and voltage level should meet design requirements and have product certificates. 2) 每盘电缆上应标明电缆规格、型号、电压等级、长度及出厂日期。电缆盘应完好无损。Each cable should be marked on specification, model, voltage level, length and