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槽式山东电缆桥架
1、桥架系统应具有可靠的电气连接并接地。
1, the bridge system should have a reliable electrical connection and grounding.
2、当允许利用桥架系统构成接地干线回路时应符合下列要求。桥架端部之间连接电阻应不大于0.00033欧姆,接地孔应清除绝缘涂层。在1KV及以下中性点直接接地系统中,受电设备的接地与系统中性线接地相连。装有处动切断供电装轩时,桥架的级长方向金属横截面积应不小于规定值。
2, when allowed to use the bridge system composed of ground trunk circuit shall meet the following requirements. Between the bridge end connection resistance should not be greater than 0.00033 ohms, grounding hole should remove insulating coating. 1KV and below the neutral grounded system, electric equipment earthing and neutral earthing connected system. With dynamic power supply is cut off when the assembly, prefects direction of the metallic cross-sectional area bridge shall be not less than the specified value.
3、沿桥架全长另敷设接地干线时,每段(包括非直线段)桥架应至少有一点与接地干线可靠连接。
3, the other along the bridge length laying ground lines, each section (including non straight segment) bridge should be at least a little and ground lines and reliable connection.
4、对于振动场所,在接地部位的连接处应装置弹簧圈。
4, the vibration of place, should spring ring at the junction device grounding parts.
山东电缆桥架