| 电缆桥架系统的接地要点要符合什么条件 |
| 添加时间：2019/4/29 16:41:19 浏览次数： |
| 1、电缆桥架系统应具有可靠的电气连接并接地（只对金属电缆桥架）。 1. Cable bridge system should have reliable electrical connection and grounding (only for metal cable bridge). 2、当允许利用电缆桥架系统构成接地干线回路时应符合下列要求。电缆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 the cable bridge system is allowed to form a grounding trunk circuit, the following requirements shall be met. The connecting resistance between the ends of cable bridge should be no shoudonghulu.07858.netbxgxianwei.37ix.com.cnmiaomubj.37ix.com.cnkangyongg.37ix.com.cnmore than 0.00033 ohms, and the insulating coating should be removed from the grounding holes. In the hengshui.71ix.cnhuanlianhulu.07858.netneutral point direct grounding system below 1KV, the grounding of the receiving equipment is connected with the neutral line grounding of the system. When the power supply is cut off and installed, the metal cross-sectional area in the direction of grade length of the bridge frame shall not be less than the prescribed value. 3、沿电缆桥架全长另敷设接地干线时，每段（包括非直线段）电缆桥架应至少有一点与接地干线可靠连接。 3. When laying the grounding trunk along the full length of the cable bridge, each section (including non-linear section) of the cable bridge should have at least one reliable connection with the grounding trunk. 4、对于振动场所，在接地部位的连接处应装置弹簧圈。 4. For vibration sites, spring coils should be installed at the connection of grounding parts. |
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