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1、 C 2005.11.12B 2005.11.5A 2005 10 10版次Rev.日期Date编 制Prepared By审 核Reviewed By批 准Approved By CBI业主/监理Owner/Supervisor修 改 说 明Revision Description. CHINA NUCLEAR INDUSTRY HUAXING CONSTRUCTION CO.福建液化天然气站线工程Fujian LNG Terminal and Trunkline Project液 化 天 然 气 低 温 储 罐 土 建 工 程LNG Cryogenic Tank Civil Works编码
2、 CODE DD-MS-HUAX-004文件类别Doc. Type 方案 Method Statement文件名称Doc. Title福 建 LNG 施 工 现 场 临时用电方案Method Statement of Jobsite Temporary Power of FJLNG Project版 次 Rev页码 Page A B C D E F G版 次 Rev页码 Page A B C D E F G0 11 1 12 2 133 144 155 166 177 188 199 2010 21 FUJIAN LNG RECEIVING TERMINAL_Method Statement
3、of JobSite Temporary Power of FJLNG Project _REVISION :CPAGE: 2/12CHANGE RECORD PAGEREVISION DESCRIPTION OF REVISIONC ISSUE FOR REVIEW FUJIAN LNG RECEIVING TERMINAL_Method Statement of JobSite Temporary Power of FJLNG Project _REVISION :CPAGE: 3/12目 录 Content1. 工程概况 General.42. 供配电方式 Method of Power
4、 Supply.43. 配电箱和开关箱 Distribution Box and Switch Box .54. 现场防雷保护 Site Lightning Protection .65. 施工用电负荷计算 Calculation of Power Load During Construction .66. 电缆、漏电保护器选择 Selecting of Cable, Switch .76.1. 主电缆截面的选择 Selection of main cable section.76.2. 开关选择 Selection of Switch .87. 临时用电平面图 Temporary Power
5、 Layout.98. 现场临时用电系统图 Site Temporary Power System Layout .99. 现场安全技术档案：Site Safety Documents .910. 安全用电及防火措施 Safety and Fireproofing of using Power .910.1. 安全用电措施 Safety Measures .910.2. 电气防火措施 Fireproofing of electricity.1110.3. 雨季临时用电措施 Rainy Temporary Electricity Measures.12 FUJIAN LNG RECEIVING
6、TERMINAL_Method Statement of JobSite Temporary Power of FJLNG Project _REVISION :CPAGE: 4/121.工程概况 General福建 LNG 低温储罐转运站工程位于福建省莆田市秀屿区。业主为我方现场提供 1000KVA, 2000KVA 两台变压器，作为用电电源。主要的施工设备为五台塔吊，三台布料机以及二台升降机等，施工的主要特点是用电负荷大，施工用电需要系数大。FJLNG Cryogenic Storage Tank project is located in Xiu Yu District, Putian
7、City, Fujian. The client provides two transformers with capacity of 1000KVA and 2000KVA respectively as power supply. During two tanks construction, the main equipment includes five tower cranes, three placing booms and two elevators. The construction needs large power supply, power coefficient is g
8、reat. 2.供配电方式 Method of Power Supply 由业主现场提供的 1000KVA，2000KVA 变压器配电室低压柜已设电度表，故在我方各个总配电柜不再设置。供电方式采用三相五线制 TN-S 系统。 为减少因停电对生产的影响面，故采用放射式的配电方式，即：从变压器配电室低压柜引出五个干线回路至施工现场五个总配电柜，分别供塔吊，地泵，升降机，施工照明以及机具用电，在总配电箱及开关箱，以及距离超过 100m 的箱内做重复接地，并与保护零线可靠联接。工作零线和保护零线要严格区分，不得混用。所有机电设备的金属外壳必须与保护零线做可靠联接。对负荷比较大的塔吊、地泵、采用单独回路
9、配电，对距离较远且负荷较小的机具可采用树干式配电方式。As ammeter is attached in the low-voltage cabinet of 1000KVA, 2000KVA transformer distribution room provided by owner, we will not install any ammeter in main distribution cabinets. Power is to be provided in TN-S System with three phases five lines. In order to minish the
10、 impact of power off upon production, radial way of distribution is adopted, that is: to give out five main line circuits to site five main distribution panels from low-voltage cabinets, which respectively supply power for tower crane, concrete pump, elevator, construction lighting, machines and too
11、ls power. The main distribution box, switch box and the distance over 100m between distribution box and switch box should be earthed repeatedly and well connected to PE line. The N line should be strictly differentiated from PE line, cannot be used confusedly. The metal shells of all mechanic equipments should be well connected to PE line. The way of distribution FUJIAN LNG RECEIVING TERMINAL_
