摘要
为研究杆塔接地装置的选择原则,本文介绍了工程中各类常见接地装置及其接地电阻计算方法,以单基铁塔接地为例计算出在满足现行规程要求的前提下各类常见接地装置在不同土壤电阻率时的接地方案,进而得到其各自的材料量、土方量和接地总造价。通过多方案技术经济比较,分析了各接地装置的适用范围,并对其进行了归类,给出了同类地区接地装置选择的优先级顺序,以期对输电线路杆塔的接地设计提供一定的参考。
In order to study the Selection Principles of overhead transmission line tower groundring device, the common types of groundring devices in engineering and its calculation method of grounding resistance are described Under the premise of meeting the current national specifications and codes, Groundring schemes of various common Groundring devices under different soil resistivities are estimated get the amount of material, earth volume and total cost for ea by ch taking Groundring of a tower for example,then scheme estimated .the applicable area of each groundring device which are classified are analyzed through technical and economic reasoning of several schemes, the priority order of scheme selection in the similar area are proposed in order to provide a reference for grounding design of transmission line tower.
出处
《电力勘测设计》
2016年第3期62-66,共5页
Electric Power Survey & Design
关键词
工频接地电阻
接地装置
优先级顺序
power frequency grounding resistance
grounding device
priority order
