Introduction to grounding wire of cable branch box

The conductor connectors in the cable branch box adopt crimping method, which is convenient for installation and flexible for incoming and outgoing lines. There can be up to 6 to 8 branch incoming and outgoing lines in use, which can realize multiple power transmission in the community, providing technical guarantee for deepening the load center, shortening the power supply radius and reducing the line loss. At the same time, the cable branch box can be equipped with power indicator, fault indicator, silicone rubber fully insulated plug-in lightning arrester, mechanical programmable lock, grounding switch, etc. to ensure the safety of operation, maintenance and management. Cooperate with cable network loop-type power supply, SF6 and other loop-type load switches can be configured to meet the local power outage maintenance requirements, realize regional power outage maintenance and reduce the power outage scope without affecting the operation of the main network. At the same time, the loop-network cable branch box can realize the loop-network power supply, laying a foundation for the future adjustment of the 10kV line network structure.

Product structure features and performance:

Fully enclosed, fully protected, anti-pollution, anti-corrosion, meet the outdoor all-weather operation conditions, and can adapt to different working environments.

The cable branch box is a floor-mounted box with small size and small floor area. If any, the floor area is 0.65m2, and the floor area with SF6 switch is only 1.45m2; Beautiful appearance will not damage the appearance of the town.

The conductor connectors in the branch box adopt crimping method, which is convenient for installation and flexible for incoming and outgoing lines. There can be up to 6 to 8 branch incoming and outgoing lines in use, which can realize multiple power transmission in the community, providing technical guarantee for deepening the load center, shortening the power supply radius and reducing the line loss. At the same time, the cable branch box can be equipped with power indicator, fault indicator, silicone rubber fully insulated plug-in lightning arrester, mechanical programmable lock, grounding switch, etc. to ensure the safety of operation, maintenance and management.

Cooperate with cable network loop-type power supply, SF6 and other loop-type load switches can be configured to meet the local power outage maintenance requirements, realize regional power outage maintenance and reduce the power outage scope without affecting the operation of the main network. At the same time, the loop-network cable branch box can realize the loop-network power supply, laying a foundation for the future adjustment of the 10kV line network structure.

Installation, use and precautions:

At present, there are many kinds of 10kV outdoor cable branch boxes produced in China, so the installation and construction of 10kV cable branch box becomes very important. Whether the operation method of the installation and connection process of the cable branch box and cable connector is correct, whether the installation process of the cable head is familiar, the sequence of the assembly of the internal components of the cable branch box and the cable connector components, and whether the operation is carried out according to the installation specifications provided by the manufacturer will directly affect the service life and normal operation of the cable branch box.

Before the operation of the cable branch box, check whether the grounding wire of each branch cable is firmly connected with the grounding terminal of the box. At the same time, the box shell must be directly connected to the grounding grid or have an obvious grounding point.

After the installation of the cable branch box, the components of the cable must be tested together according to the relevant test standards and conditions.

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