Portable step voltage early-warning apparatus
A step voltage and early warning device technology, applied in the direction of measuring devices, measuring current/voltage, measuring electrical variables, etc., can solve the problems of wires falling on the ground, circuit interruption, etc., and achieve the effect of compact structure and ensuring life safety
Inactive Publication Date: 2016-09-07
GAOTANG COUNTRY POWER SUPPLY BUREAU OF STATE GRID SHANDONG ELECTRIC POWER CO
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Problems solved by technology
At the same time, in order to transmit high-voltage electricity, a large number of high-voltage transmission circuits have been built in my country. However, with some unpredictable factors such as weather, geology, and man-made, it is easy to cause the interruption of high-voltage transmission circuits, causing the wires to fall to the ground. , near the high-voltage line tower, sometimes there will be step voltage on the ground due to problems such as leakage or induction
Method used
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Embodiment 1
[0022] Example 1, such as figure 1 , figure 2 As shown, the present embodiment provides a portable step voltage early warning device, including detection electrodes 1 for placing on the front and rear ends of insulating shoes and a circuit board (not shown) for setting the voltage acquisition circuit, which is different from the existing The difference between placing the detection unit on the two feet of the staff is that in this embodiment, the detection electrode 1 is placed on one foot of the staff. Of course, the foot that is placed must be the staff’s first foot. In this way, it can be reminded first that the maximum voltage that people can bear is 36V, so in this embodiment, when the voltage reaches about 10V~20V, an alarm is raised, so it can be set at On a single pin, and the voltage acquisition circuit is an existing relatively mature technology, so in this embodiment, the detailed description and drawings of the circuit are not carried out. In this embodiment, the...
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The invention belongs to the field of auxiliary power maintenance equipment, and specifically relates to a portable step voltage early-warning apparatus which comprises detection electrodes disposed on front and rear ends of an insulated shoe and a circuit board for arranging a voltage acquisition circuit, wherein the detection electrodes are electrically connected with the circuit board, and the circuit board is arranged in an apparatus housing. A voltmeter and a processor in communication connection with the voltmeter are arranged in the apparatus housing, an alarming horn for giving off an alarm is arranged on the external surface of the apparatus housing, and a band for binding the apparatus housing on a leg is arranged on the external surface of the apparatus housing. The portable step voltage early-warning apparatus is disposed on one insulated shoe of a worker, which changes conventional bi-feet prediction method, measures step voltage earlier, and ensures life safety of the worker. The apparatus is small, portable, convenient and rapid, and can be used only by sleeving on a foot. The apparatus is worthy of wide promotion.
Description
technical field [0001] The invention belongs to the field of electric power maintenance auxiliary equipment, and relates to step voltage, in particular to a portable step voltage early warning device. Background technique [0002] Step voltage is the voltage generated between the limbs of people or animals passing near the grounding point after the electrical equipment is grounded. This voltage can cause electric shock accidents. Step voltage often appears near the fault grounding point of electrical equipment and where the power transmission and distribution line breaks and lands. In addition, there is also a step voltage near the ground electrode of the lightning rod during a lightning strike. Usually, there is a danger of step voltage electric shock within 20 meters of these fault points. [0003] In order to meet the growing demand for electricity, my country's HVDC transmission technology has developed rapidly and has become the leading technology for long-distance l...
Claims
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CPCG01R19/16533
Inventor 任晓蕾赵金洋杨春霞赵海忠李治国卢生许帅崔玉铸
Owner GAOTANG COUNTRY POWER SUPPLY BUREAU OF STATE GRID SHANDONG ELECTRIC POWER CO