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Cable trays should be erected with obvious signs when necessary

  • Categories:Zhongrui News
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  • Time of issue:2019-05-28 15:19
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(Summary description)The relevant provisions of the "Code for Design of Power Engineering Cables" are carried out, and the necessary cable accessories (terminals and connectors) and cable bridge cable trays are installed. The quality, safety and reliability of the power supply system are not only related to the quality of the wire and cable itself, but also to the quality of the cable accessories and the construction of the line. Cable tray specification Through the statistical analysis of line faults, the faults caused by factors such as construction, installation and connection are often much more likely than the faults caused by the defects of the wire and cable body. The cable tray 2 building fd can be directly connected through the trunk cable. To cd. Therefore, it is necessary to correctly select the wire and cable and accessory accessories. In addition to the design and construction according to the specifications, the following aspects should be noted: 1. Cable laying should be carried out by qualified professional units or professionals. The construction and installation required by the specification may result in the cable system not functioning properly. 2. When manpower laying cables, the command and control rhythm should be unified. Every 1.5 to 3 meters, one person shoulders the cable, pull it while pulling it, and slowly apply it. 3. When the cable is mechanically applied, the special cable laying machine is generally equipped with the necessary traction tools, the traction force is appropriate and the control is uniform, 1 to avoid damage to the cable. 4. Before applying the cable, check the appearance of the cable and whether the head is intact. Pay attention to the direction of rotation of the cable tray when casting. Do not flatten or scratch the outer sheath of the cable. Do not straighten the cable by dropping when the temperature is low in winter. In order to avoid insulation, the sheath is cracked. 5. The bending radius of the cable cable tray should be greater than the specified value when laying. Before and after cable installation, measure the insulation resistance between the conductors of the cable with a 1000v megohmmeter, and correct the measurement results according to the cable model specifications, length and ambient temperature. Small size (10mm2 or less solid core) The conductor) cable should also measure the continuity of the conductor. 6. If the cable is laid directly, it is necessary to pay attention to the soil conditions. The buried depth of the cable under the general building is not less than 0.3 m. It is softer or the cable bridge of the surrounding environment is more complicated, such as cultivated land, construction site or road, etc. The depth of the bridge is buried (0.7 to 1 m) to prevent accidental damage to the directly buried cable, and if necessary, an obvious sign should be erected.

Cable trays should be erected with obvious signs when necessary

(Summary description)The relevant provisions of the "Code for Design of Power Engineering Cables" are carried out, and the necessary cable accessories (terminals and connectors) and cable bridge cable trays are installed. The quality, safety and reliability of the power supply system are not only related to the quality of the wire and cable itself, but also to the quality of the cable accessories and the construction of the line.

Cable tray specification Through the statistical analysis of line faults, the faults caused by factors such as construction, installation and connection are often much more likely than the faults caused by the defects of the wire and cable body. The cable tray 2 building fd can be directly connected through the trunk cable. To cd. Therefore, it is necessary to correctly select the wire and cable and accessory accessories. In addition to the design and construction according to the specifications, the following aspects should be noted: 1. Cable laying should be carried out by qualified professional units or professionals. The construction and installation required by the specification may result in the cable system not functioning properly. 2. When manpower laying cables, the command and control rhythm should be unified. Every 1.5 to 3 meters, one person shoulders the cable, pull it while pulling it, and slowly apply it. 3. When the cable is mechanically applied, the special cable laying machine is generally equipped with the necessary traction tools, the traction force is appropriate and the control is uniform, 1 to avoid damage to the cable. 4. Before applying the cable, check the appearance of the cable and whether the head is intact. Pay attention to the direction of rotation of the cable tray when casting. Do not flatten or scratch the outer sheath of the cable. Do not straighten the cable by dropping when the temperature is low in winter. In order to avoid insulation, the sheath is cracked. 5. The bending radius of the cable cable tray should be greater than the specified value when laying. Before and after cable installation, measure the insulation resistance between the conductors of the cable with a 1000v megohmmeter, and correct the measurement results according to the cable model specifications, length and ambient temperature. Small size (10mm2 or less solid core) The conductor) cable should also measure the continuity of the conductor.

6. If the cable is laid directly, it is necessary to pay attention to the soil conditions. The buried depth of the cable under the general building is not less than 0.3 m. It is softer or the cable bridge of the surrounding environment is more complicated, such as cultivated land, construction site or road, etc. The depth of the bridge is buried (0.7 to 1 m) to prevent accidental damage to the directly buried cable, and if necessary, an obvious sign should be erected.

  • Categories:Zhongrui News
  • Author:
  • Origin:
  • Time of issue:2019-05-28 15:19
  • Views:
Information
The relevant provisions of the "Code for Design of Power Engineering Cables" are carried out, and the necessary cable accessories (terminals and connectors) and cable bridge cable trays are installed. The quality, safety and reliability of the power supply system are not only related to the quality of the wire and cable itself, but also to the quality of the cable accessories and the construction of the line.
 
Cable tray specification Through the statistical analysis of line faults, the faults caused by factors such as construction, installation and connection are often much more likely than the faults caused by the defects of the wire and cable body. The cable tray 2 building fd can be directly connected through the trunk cable. To cd. Therefore, it is necessary to correctly select the wire and cable and accessory accessories. In addition to the design and construction according to the specifications, the following aspects should be noted: 1. Cable laying should be carried out by qualified professional units or professionals. The construction and installation required by the specification may result in the cable system not functioning properly. 2. When manpower laying cables, the command and control rhythm should be unified. Every 1.5 to 3 meters, one person shoulders the cable, pull it while pulling it, and slowly apply it. 3. When the cable is mechanically applied, the special cable laying machine is generally equipped with the necessary traction tools, the traction force is appropriate and the control is uniform, 1 to avoid damage to the cable. 4. Before applying the cable, check the appearance of the cable and whether the head is intact. Pay attention to the direction of rotation of the cable tray when casting. Do not flatten or scratch the outer sheath of the cable. Do not straighten the cable by dropping when the temperature is low in winter. In order to avoid insulation, the sheath is cracked. 5. The bending radius of the cable cable tray should be greater than the specified value when laying. Before and after cable installation, measure the insulation resistance between the conductors of the cable with a 1000v megohmmeter, and correct the measurement results according to the cable model specifications, length and ambient temperature. Small size (10mm2 or less solid core) The conductor) cable should also measure the continuity of the conductor.
 
6. If the cable is laid directly, it is necessary to pay attention to the soil conditions. The buried depth of the cable under the general building is not less than 0.3 m. It is softer or the cable bridge of the surrounding environment is more complicated, such as cultivated land, construction site or road, etc. The depth of the bridge is buried (0.7 to 1 m) to prevent accidental damage to the directly buried cable, and if necessary, an obvious sign should be erected.

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