Low-voltage cable branch box capable of achieving charged disconnection and connection

Abstract

The invention discloses a low-voltage cable branch box capable of achieving charged disconnection and connection. The low-voltage cable branch box comprises a box body and a box door, wherein supportlegs are arranged at the bottom of the box body; four low-voltage busbars with equal intervals are longitudinally arranged in the box body; each low-voltage busbar is provided with an insulating isolation device for separately isolating each low-voltage busbar; air inlet channels are arranged in a side wall of the box body; an exhaust channel is arranged in the bottom of the box body; a cooling and dehumidifying device is arranged in the exhaust channel; an inner wall of the box body is provided with a temperature and humidity sensor for monitoring internal temperature and humidity of the boxbody; the inner wall of the box body is also provided with a plurality of voltage detection modules; an audible and visual alarm is arranged at the top of the box body; the inner wall of the box dooris provided with a controller and a signal processing module; the signal processing module is connected with the voltage detection modules, the audible and visual alarm, the temperature and humidity sensor and the controller separately; and the controller is connected with the cooling and dehumidifying device.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a low-voltage cable branch box capable of being charged and connected to a fire. Background technique [0002] The low-voltage cable branch box is the supporting equipment for the cable transformation of the urban network. It is widely used in substations and distribution stations, public mining enterprises, on both sides of the street, in garden residential quarters, high-rise buildings, airports, and other outdoor public places such as key construction and renovation projects. In the phase-to-low voltage transmission and distribution system, it is used as a complete set of stereotyped equipment for distributing electric energy to other users or equipment with cables. Usually, the low-voltage cable branch boxes are installed outdoors. At the current stage, when the old residential area is being renovated, the low-voltage line reconstruction part needs to be cut off du...

AI Technical Summary

Problems solved by technology

Usually, the low-voltage cable branch boxes are installed outdoors. At the current stage, when the old residential area is being renovated, the low-voltage line reconstruction part needs to be cut off due to the insufficient safety distance in the existing low-voltage branch box and the lack of insulation and shielding measures. , the power transmission can only be resumed after the transformation task is completed, which increases the power outage time of users

[0003] In addition, once the low-voltage cable branch box is not well grounded, the shell is damaged, the electrical appliances are damp, the temperature in the box is too high and the line is aging, etc., it is easy to cause leakage, and then cause fires, electric shocks and other accidents.

Most of the protective measures in the prior art start the leakage protection device to cut off the power supply after the electric shock accident occurs, so that the electric shock personnel are out of danger, but due to the high electric shock voltage, the human body will suffer great electric shock damage in a short time

Images