Wearable step voltage alarming device

Abstract

The invention provides a wearable step voltage alarming device, belonging to the technical field of electric power safety protection, aiming at solving the problems that step voltage injury accidents are caused by the fact that failure equipment or line fault grounded points cannot be predicated in advance when and power transformation, power distribution operation and maintenance staff inspect failed high-voltage equipment or lines with power. The device is worn on double feet of the operation and maintenance staff and voltage of a current footstep is sensed through a voltage sensor; the obtained voltage is sent to a computer and a step voltage value is calculated; when the step voltage value exceeds a threshold value, a controller sends out an early warning signal to an alarm; and the alarm sends out sound and optical alarms to remind the operation and maintenance staff in inspection of being careful. By adopting the wearable step voltage alarming device, the operation and maintenance staff in the inspection can find out the failure equipment or the line fault grounded points in time and can also avoid the step voltage injury accidents, so that the personal safety of the operation and maintenance staff is guaranteed. The wearable step voltage alarming device can be used for electric power departments including State Grid and the like.

Description

technical field [0001] The invention relates to the technical field of electric power safety protection, in particular to a wearable step voltage alarm device. Background technique [0002] At present, Article 5.2.4 of the "State Grid Corporation Electric Power Safety Work Regulations" (substation part) stipulates that when high-voltage equipment is grounded, indoor personnel should be 4 meters away from the fault point, and outdoor workers should be 8 meters away from the fault point. The reason for this regulation is that when a single-phase grounding fault occurs due to a shell failure of electrical equipment, a wire breaks to the ground, or a line insulation breakdown, the current will flow to the earth in a hemispherical shape through the grounding body or the grounding point of the wire. Similar to throwing a stone into water, many circles will appear. The closer to the center of the circle, the higher the potential, and the farther away from the center, the lower the ...

AI Technical Summary

Problems solved by technology

Substation and distribution operation and maintenance personnel and line operation and maintenance personnel need to have strong professional quality when patrolling faulty high-voltage equipment or lines with electricity, especially when a ground fault occurs on the transmission and distribution line, because the faulty equipment cannot be predicted in advance Or the line grounding fault point, the operation and maintenance personnel stray into the faulty equipment or line grounding point within 8 meters, resulting in step voltage damage accidents occur from time to time, causing personal injury to the operation and maintenance personnel

[0004] The conventional method for avoiding step voltage electric shock accidents is to wear insulated boots or jump forward with both feet tightly. Wearing insulating boots can avoid electric shock accidents, but it is difficult to find the ground fault point in time; It is not conducive to the operation and maintenance personnel to patrol for a long time. Therefore, it is imminent how to make the operation and maintenance personnel find the faulty equipment or the grounding point of the line in time to avoid personal electric shock injury caused by step voltage.

Images