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Bridge grounding wire knowledge

  • Categories:Zhongrui News
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  • Time of issue:2019-05-28 14:47
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(Summary description)1. The cable tray system should have a reliable electrical connection and grounding (only for metal bridges). 2. When the bridge system is allowed to form a grounded trunk circuit, the following requirements shall be met. The connection resistance between the ends of the bridge should be no more than 0.00033 ohms, and the grounding holes should be cleaned of the insulating coating. In a 1KV and below neutral point direct earthing system, the ground of the powered device is connected to the neutral line of the system. When the power supply is installed and the power supply is installed, the cross-sectional area of the metal length of the bridge shall not be less than the specified value.

Bridge grounding wire knowledge

(Summary description)1. The cable tray system should have a reliable electrical connection and grounding (only for metal bridges).

2. When the bridge system is allowed to form a grounded trunk circuit, the following requirements shall be met. The connection resistance between the ends of the bridge should be no more than 0.00033 ohms, and the grounding holes should be cleaned of the insulating coating. In a 1KV and below neutral point direct earthing system, the ground of the powered device is connected to the neutral line of the system. When the power supply is installed and the power supply is installed, the cross-sectional area of the metal length of the bridge shall not be less than the specified value.

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 14:47
  • Views:
Information
1. The cable tray system should have a reliable electrical connection and grounding (only for metal bridges).
 
2. When the bridge system is allowed to form a grounded trunk circuit, the following requirements shall be met. The connection resistance between the ends of the bridge should be no more than 0.00033 ohms, and the grounding holes should be cleaned of the insulating coating. In a 1KV and below neutral point direct earthing system, the ground of the powered device is connected to the neutral line of the system. When the power supply is installed and the power supply is installed, the cross-sectional area of the metal length of the bridge shall not be less than the specified value.
 
3. When laying the grounding trunk along the entire length of the bridge, each section (including the non-linear section) should have at least one point that is reliably connected to the grounding trunk.
 
4. For the vibration place, the spring ring should be installed at the joint of the grounding part.

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