接地安装标准（Grounding installation standard）.docVIP

接地安装标准（Grounding installation standard） Grounding pole installation standard Author: anonymous release date: 2008-5-12 18:23:21 (read 2613 times) Key words: grounding installation Installation requirements and skills of grounding electrodes Key words: grounding electrode installation Earthing equipment shall be made of steel, and the conductor section of grounding device shall comply with the requirements of thermal stability and mechanical strength, but shall not be smaller than the specifications below. Category specifications and units On the ground underground indoor outdoor AC current circuit DC current loop Round steel diameter (mm) Six Eight Ten Twelve Flat steel Cross section (mm2) Thickness (mm) Sixty Three One hundred Four One hundred Four One hundred Six Angle steel thickness (mm) Two Two point five Four Six Thickness of steel pipe wall (mm) Two point five Two point five Three point five Four point five Two. The buried depth of the top of the grounding body shall not be less than 0.6 meters, and the angle steel and the steel pipe grounding body shall be vertically configured. In addition to the ground, the lead line of the grounding body shall be treated as antiseptic; when the galvanized steel bar is used, the bolt joint of the lead line shall be painted with anticorrosive paint. Three, in order to reduce the shielding effect of the adjacent grounding body, the spacing of the vertical grounding body should not be less than two times of its length, and the spacing of the horizontal grounding body should be less than 5 meters according to the design requirements. Four. The distance between the grounding body and the building should not be less than 1.5m. Five, grounding wire should prevent mechanical damage and chemical corrosion, grounding wire through the wall, through the hole, through the steel pipe or other strong protective sleeve. Six. The grounding line shall be connected with the grounding grid at least two different points. Seven each earthing pa