A method for live connection in a low-voltage cable branch box

Abstract

The invention relates to the technical field of electric meter installation and connection. A method for live connection in a low-voltage cable branch box, characterized in that it includes the following steps: 1) preparing a device for live connection in a low-voltage cable branch box, including a first fastening screw, a device body, a second fastening screw, The third fastening screw; the bottom of the second fastening screw is screwed into the second threaded hole, and the bottom of the third fastening screw is screwed into the third threaded hole; 2) prepare the low-voltage cable branch box; 3) will be used for low-voltage The live wiring device in the cable branch box is installed on the copper strip of the low-voltage cable branch box; 4) When a new power line is to be connected, under live conditions, insert the first power line into the hole and the second power line into the hole Insert the light end of the power cord into the power cord respectively, and then use an insulated screwdriver to tighten the first fastening screw and the second fastening screw respectively, and fix the new power cord to be connected to the device body. This method can carry out live wiring work without power failure.

Description

technical field [0001] The invention relates to the technical field of electric meter installation and connection, in particular to a method for live connection in a low-voltage cable branch box. Background technique [0002] The structure of the low-voltage cable branch box is as follows: figure 1 As shown, the low-voltage cable branch box includes the box door, the first connecting screw, the low-voltage cable branch box body, copper bars, fixed horizontal bars, and the third connecting screw; the low-voltage cable branch box is a cavity, and the low-voltage cable branch box The left side and the right side of the body are respectively hinged with box doors, and a plurality of fixed horizontal bars are arranged in the cavity of the low-voltage cable branch box along the transverse direction, and the fixed horizontal bars are connected by the third connecting screw (or bolt) and the low-voltage cable branch box. The box body is fixedly connected, and a plurality of copper ...

AI Technical Summary

Problems solved by technology

[0003] There are the following deficiencies: 1. After the low-voltage cable branch box is powered and put into operation, when the metering device is installed again, it is limited by the small size of the live low-voltage cable molecular box and the limited safety distance between the live copper bars. The entire transformer or Only when the entire low-voltage branch line is completely stopped can it be safely connected to the electric meter of the new user. The shutdown of the transformer will cause a large-scale power outage and seriously affect the power supply.

2. The direction of the wiring in the daily low-voltage cable branch box is horizontal. Due to the influence of space, the safe distance between the phase sequences cannot be guaranteed, and there are great potential safety hazards. Clear, neat and beautiful requirements

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