RU173772U1 - Induced voltage indicator for shielding and protective (shunt) kits - Google Patents

Abstract

The proposed utility model relates to safety measures, namely, to devices for the non-contact detection of induced voltage for shielding and protective (shunt) kits. The induced voltage indicator contains a board on an electrically insulating base and two conductive contact nodes mounted on it, which are mounted on the board with the possibility of contact with clothing items. Three LEDs are installed on the indicated board by means of fastening elements, each of which is designed for its own current value, and the electrical connection between the LEDs is made in parallel. Each of the two common points of electrical contact of the LEDs, formed by their parallel connection, is connected to its contact node, and these conductive contact nodes are fixed on opposite edges of the specified board. In addition, the contact nodes, LEDs and their electrical connections are galvanically isolated from all the edges of the electrically insulating base. The technical result is to provide the possibility of reliable detection of the level of risk for a person when he falls into the zone of influence of the induced (step) voltage. 4 s.p. f-ly, 3 ill.

Description

Technical field

The proposed utility model relates to safety, and in particular to devices for contactless detection of induced voltage for shielding and protective (shunt) kits.

State of the art

Known individual non-contact voltage indicator pointer, designed to be fixed on a clothing item of personnel, containing an antenna and an indication unit, is equipped with a microcontroller that discriminates the number of voltage pulses and compares their amplitude with a given value, while the input of the microcontroller is connected to the antenna, and its output is with the input of the display unit, the microcontroller is configured to discriminate the frequency of the voltage pulses, placed on a plastic base (climbed main model RU No. 28561, G08B 29/06, G01R 19/00, publ. 03/27/2003).

The disadvantage of the personal protective equipment (PPE) described above is that the user does not have the ability to notify him of the induced (step) voltage and the corresponding currents flowing along parallel paths through the human body (minimum current ensuring electrical safety), and shielding or protective (shunt) set (induced or caused by step voltage current along the paths arm-arm, arm-legs or foot-foot).

Utility Model Disclosure

The technical result, which the proposed technical solution is aimed at, is to provide the possibility of reliable detection of the level of risk for a person when he falls into the zone of influence of the induced (step) voltage.

The indicated technical result is achieved by creating an induced voltage indicator containing a board on an electrically insulating base and two conductive contact nodes mounted on it, which are mounted on the board so that they can be contacted with clothing elements, moreover, three LEDs are installed on the specified board through fastening elements, each of which is designed for an eigenvalue of the current, and the electrical connection between the LEDs is parallel, and each of the two common points nical contact LEDs formed of a parallel connection, connected to its own node contact, said conductive contact assemblies mounted on opposite edges of said board, in addition, the contact assemblies, the LEDs and their electrical connections are electrically isolated from all edges of the electrically insulating base.

In one embodiment, the diodes are designed for current 1A, 5A and 10A, respectively.

In another embodiment, the conductive contact nodes are flat surfaces of an electrically conductive material.

In another embodiment, the conductive contact nodes are metal half buttons.

In another embodiment, the conductive contact nodes are in the form of metal pins.

Thus, the claimed technical solution with its entire set of essential features allows us to provide reliable detection of the level of risk for a person when he falls into the zone of influence of the induced (step) voltage.

Brief Description of the Drawings

In FIG. 1 shows the design of the indicator.

In FIG. 2 - general view of the indicator with contact nodes in the form of buttons.

In FIG. 3 is a general view of the indicator with contact nodes in the form of pins.

Utility Model Implementation

The need to use such an indicator is dictated by the fact that the level of the induced current is usually not high (there are rare cases when the currents are 10A or more). Therefore, the user has a subjective idea of the level of risk, from which he is protected by a shielding or protective (shunt) kit.

 The indicator (Fig. 1) is a board on an electrically insulating base with one or more LED indicators designed for one or more current values (for example 3 LEDs: 1A, 5A and 10A, as shown in Fig. 1), connected in parallel.

According to FIG. 1, the LEDs (1), rated for current 1A, 5A and 10A, respectively, are installed on a board with an electrically insulating base (3). Electrically conductive contact nodes (2), which are connected by electric wires or buses (4) with LEDs (1), are also installed on the board by means of fasteners. Moreover, the contact nodes are installed on the board so that they are galvanically isolated from the board. In addition, the board is a rectangular plate with diodes mounted on one side (the front side of the plate contains LEDs for visualizing the detected current values), and on the other, conductive contact nodes for contact with clothing elements or elements of a protective kit designed to protect a person from exposure to high voltages.

The current values can be applied to the external (front side) of the LEDs on the surface of the product opposite the corresponding LED, including fluorescent paint. Moreover, the general conclusions of the parallel-connected LEDs are connected to the conductive contact nodes, which are located on the edges of the board and can be made in the form of:

  flat contact surfaces in the case of stitching the product into the sleeve, pants, clothing and / or glove (figure 1),

 one, two or more pairs of metal half buttons (figure 2 is a bottom view of the product) with counterparts sewn or riveted to the sleeve, trousers and (or) glove,

 one, two or more metal pins (Fig. 3 is a bottom view of the product) pinned to a sleeve, trousers and / or glove.

The goal can be achieved by simultaneously connecting to a shielding or protective (shunting) set of two or more indicators (for example, trousers and a sleeve, both gloves, both sleeves). It is also possible to install in addition to the wired one or more removable (for example on pins) indicators.

Without fail, contact surfaces, like LEDs with buses, in any of the embodiments shown in Figs. 1-3, from the external and lower sides must be galvanically isolated from all edges of the electrically insulating base.

Principle of action: when the user of the sets gets under induced or step voltage and the currents of the corresponding values flow through clothing and / or gloves, different LEDs will light up.

Thus, the use of a simple device allows users of shielding or protective (shunt) kits to objectively assess the presence and level of risk of electric shock when operating in the conditions of induced or step voltage, which is very important from the point of view of the reliability of the use of sets.

At the same time (additional useful properties): the product can be used separately, for different shielding or protective (shunt) sets (you can use push-button or pin contacts), and sew products into clothing (gloves) at the production stage. In addition, along with embedded devices, you can optionally install products on pins.

All elements of the proposed device are combined functionally and constructively into a single product - an indicator.

The achievement of the technical result is due to the presence of LEDs, boards on an electrically insulating base, contact nodes (as well as options for their implementation) and electrical connections between circuit elements.

Claims (5)

1. Induced voltage indicator, containing a board on an insulating base and two conductive contact nodes mounted on it, which are mounted on the board with the possibility of contact with clothing elements, characterized in that three light-emitting diodes are mounted on said board through fastening elements, each of which is designed on the eigenvalue of the current, and the electrical connection between the LEDs is made parallel, and each of the two common points of the electrical contact of the LEDs, formed and x by a parallel connection, connected to its electrically conductive contact node, said electrically conductive contact nodes being fixed on opposite edges of said board, in addition, the contact nodes, LEDs and their electrical connections are galvanically isolated from all edges of the electrically insulating base. 2. Induced voltage indicator by. 1, characterized in that the diodes are designed for current 1A, 5A and 10A, respectively. 3. Induced voltage indicator by. 1, characterized in that the conductive contact nodes are flat surfaces of electrically conductive material. 4. Induced voltage indicator by. 1, characterized in that the conductive contact nodes are metal half-buttons. 5. Induced voltage indicator by. 1, characterized in that the conductive contact nodes are made in the form of metal pins.

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