某国330kv线路施工组织设计说明—-施工组织设计.docVIP

EPC of ABC 330kV D/C TRANSMISSION LINE PROJECT Construction Management Plan ABC Co., Ltd April 5,2010 Prepared: Checked: Approved: Chapter 1 Project Overview and Features 1． Project overview and features 1.1 project overview Lot 1 330kV - B DC Line ( that is 286m in length ) ( hereinafter referred to as “AB Project”) is a project invested by NDPHC. 1.1.1 Length, voltage grade and erection type of the line ABProject is located in the central area of N NATIONAL starting from A Substation in the south and ending in B substation in the north with the length of 279.449km. The project is located above sea level between 100m and 1300m with the voltage grade of 330kV. The double-circuit line will be erected on the same tower and self-supporting angle steel towers will be employed for the line. 1.1.2 Conductor, ground wire, OPGW and insulator The conductor will be twin bundled and horizontally arranged with the model of BISON. The ground wires will be GJ-60 galvanized stranded wire and OPGW respectively. Glass insulators will be employed for the line. Twenty FC120/146 glass insulators will be employed in the tangent tower and 2X22 FC160/146 glass insulators in the strain tower. 1.1.3 Fountation type and earthing Oblique Angle Inserted Foundation and horizontally radial earthing. 1.2 Analysis of construction condition 1.2.1 Construction condition at the site ● Medium sand, crushed stone resources are available along the line. Appropriate sand, stones may be provided. ● Influenced by climatic conditions, it is difficult to construct in rainy season at location of this project. Rainy season should be evaded as far as possible. However, since part of construction period for this project is arranged in rainy season. Preparations should be made for the construction proposal in rainy season. Construction period of the procedures should be arranged reasonably. Adverse factors should be considered suffi