Low voltage junction box

Abstract

The invention provides a novel low-voltage coupling box. The novel low-voltage coupling box comprises a box body with a box door which is opened on one side. An aluminum row box, a fuse box and a switch box are arranged in the box body, wherein four aluminum rows which are transversely arrayed in sequence are vertically arranged in the aluminum row box, three porcelain inserting type fuses which are transversely arrayed in sequence are vertically arranged in the fuse box, and an air switch is installed in the switch box. Three live wires penetrate through the box wall of the switch box and are electrically connected to three incoming line connectors of the air switch, three outgoing line connectors of the air switch are electrically connected with incoming line connectors of the three porcelain inserting type fuses respectively, outgoing line connectors of the three porcelain inserting type fuses are electrically connected on three aluminum rows, the three aluminum rows are respectively provided with branching lines of the live lines, wherein the number of the branching lines is N, and zero lines penetrate through the side wall of the box body and are electrically connected to a fourth aluminum row. The novel low-voltage coupling box has the advantages of being scientific in design, high in space utilization rate, capable of conveniently achieving disconnection of a power source, safe, reliable, and convenient to operate.

Description

technical field [0001] The invention relates to a junction box, in particular to a low-voltage junction box used in a power transmission system. Background technique [0002] With the improvement of residents' living standards, the electricity load is gradually increasing, and the opportunities for troubleshooting of low-voltage junction boxes are also increasing. In the urban-rural junction, especially in the low-voltage distribution boxes originally installed and used in towns and towns, the aluminum rows are arranged vertically, the distance between them is small, and the space utilization rate is poor. The space becomes more crowded and narrow, causing great inconvenience to daily maintenance work. During maintenance, in order to ensure safety, it is very troublesome to start the maintenance work only after disconnecting the power supply on the low-voltage side of the public distribution transformer at the upper level. [0003] In order to solve the above existing prob...

AI Technical Summary

Problems solved by technology

In the urban-rural junction, especially in the low-voltage distribution boxes originally installed and used in towns and towns, the aluminum rows are arranged vertically, the distance between them is small, and the space utilization rate is poor. The space becomes more crowded and narrow, causing great inconvenience to daily maintenance work

During maintenance, in order to ensure safety, it is necessary to disconnect the power supply on the low-voltage side of the upper-level public distribution transformer before starting the maintenance work, which is very troublesome

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