GOST high voltage sign. electrical safety signs: classification, interpretation, rules and regulations for placement (105 photos)

Our offers

Our capabilities allow us to accept orders for a large number of signs. Depending on the application, electrical safety warning signs can be made of materials with varying degrees of strength. If you intend to mark hazardous areas in interior spaces, where the signs will not be exposed to atmospheric influences and temperature changes, it is more advisable to use self-adhesive film. This type of marking can be done on a scale where an equilateral triangle has side lengths:

1. 50 mm
2. 100 mm
3. 150 mm
4. 200 mm
5. 250 mm
6. 300 mm

These dimensions are provided for by national and international standards and are also used for external warning signs.

We offer external options in the following versions: on non-flammable hard PVC plastic, with a thickness of 1.5 to 2 mm, and also on a metal base made of galvanized steel. The metal sign has rounded corners and curved edges, and, if necessary, a bracket on the back side (with aluminum rivets or spot welding).

Additional features

When accepting an order, our specialists draw up a detailed technical specification, where they indicate not only technical parameters, but also other wishes of the customer. This includes, for example, brackets and stands, applying a fluorescent layer or using reflective film instead of the usual colored self-adhesive.

In addition to the standard sign, we accept orders for posters, signs and shields informing about the location of electrical wiring or warning about the danger of unauthorized work in the area of ​​high-voltage transmission lines.

In this case, a pilot layout is compiled in a graphic editor, which, after approval by the customer, is launched onto the cutting plotter. The entire process is carried out with high precision, thanks to new technologies for transferring digital images to the plotter. The number of copies per order is unlimited.

About the sign itself

The Electrical Hazard sign is a black lightning bolt or zigzag icon on a yellow background. Lightning is directed from top to bottom, from the top of an equilateral triangle to its base. The triangle has rounded or sharp edges edged in black.

International standards also provide a warning message: “Caution, high voltage” or “Caution, electrical voltage”. We offer both the standard version without an inscription, and both of the above options, where the image is accompanied by text

Signs installed at the entrance warn that their effect extends to the entire territory. They must be clearly visible at any time of the day, so the use of reflective or fluorescent film is allowed.

The order price depends on the material and parameters of the sign.

Electric current is a source of increased danger, therefore all actions on power installations and lines must be carried out taking precautions against sudden switching on of units and power supply. To perform functions of notifying workers or other persons about ongoing repairs, posters and electrical safety signs are installed on the panel or main line, which must be of a certain size and content.

This topic discusses the types of such posters, their purpose and size, as well as the scope of application and the principles by which they are divided into groups.

Pointing

This category of safety signs includes only one poster, with the inscription “grounded”. It indicates that this electrical equipment is connected to a grounding conductor and it is strictly prohibited to supply power to it from power supply systems.

We have reviewed almost all the posters, signs and inscriptions that are used to ensure human safety when carrying out various work on electrical installations. Below we will provide information about the features of the manufacture and use of these products, which provide protection to people from electric shock.

Warning

Safety warning posters are designed to inform people when approaching areas or equipment where the possibility of electrical shock exists. The following signs belong to this type of information signs.

1. A poster with this inscription is posted at the site where testing work is carried out for electrical installations under high voltage. The work site has a special fence on which this safety sign is installed.

2. Notifies personnel and bystanders about the possibility of electric shock to a person when touching current-carrying elements of equipment or electrical networks that are powered by life-threatening voltage.

3. This sign warns of the presence of dangerous voltage on various electrical installations and equipment. It is the most common of all electrical safety warning posters.

4. Triangular safety sign for permanent placement. It is installed on the doors of various power supply facilities and warns of the presence of voltage that is dangerous to human life.

All warning signs and electrical safety posters can be stationary or portable, as well as prohibitory ones.

Types of email signs safety according to GOST

There is a division of safety signs into the following groups:

• prohibiting;
• warning;
• prescriptive;
• index.

This classification is established by GOST 12.4.026-2015.

Prohibitions imply a complete restriction on any actions that could cause harm to workers located in the area of ​​electrical installations and carrying out any actions there. They also prohibit working or carrying out any manipulations without protective equipment inside certain premises and installations.

Prohibiting

Warnings serve to indicate possible dangers not only to human health, but also to life, as well as harmful production factors

They perform the following task: to increase attention or warn workers and third parties about an object that is potentially dangerous. Failure to comply with special safety measures can lead to irreparable consequences, severe injuries, injuries, or even death.

For your information! The "Dangerous Voltage" sign is a typical example of a warning sign. It is permanent. An example of a portable poster: “Tests are life-threatening!”

Maintenance personnel should notice the warning sign from afar. Sometimes, for clarification, they are supplemented with electrical safety warning signs in the form of a rectangle.

Warning

In electrical safety signs, according to GOST, lightning indicates the presence of voltage in the network. An example of a prohibitory poster: “DO NOT TURN ON! People are working." The prohibitory poster has the shape of a rectangle and is suspended on handles and levers that supply voltage.

Prescriptive ones are needed to identify safe places in which repairs or maintenance of electrical equipment can be carried out. Their purpose is also to indicate safe passage to the area where manipulations are carried out. Example of a portable instructional poster: “Work here.”

Prescriptive

The purpose of the signs is to show the location of electrical equipment and devices that require strict adherence to safety regulations.

Pointing

Important! Sometimes it is allowed to use two signs at once: a prohibition sign and an instruction sign. Then the second one is always located higher than the first one

The table clearly shows the distribution of signs by groups:

Warning posters

Warning posters warn against approaching dangerous distances from live parts.

"STOP!" voltage" - warns of the danger of approaching live parts of electrical installations that are energized. The poster is used in electrical installations with voltages up to 1000 V and higher (applies to portable ones).

Poster dimensions – 300X150 mm. The red arrow is made in accordance with GOST 12.4.026. The width of the red border is 15 mm. The inscription is made in black letters on a white background.

"DO NOT COME IN!" will kill" - this poster warns of the possible approach to live parts that are energized when climbing a structure.

The dimensions of the sign are 300x150 mm. The arrow is red. The width of the red border is 15 mm. The inscription is made in black letters on a white background.

“THE TEST IS DANGEROUS TO LIFE” - the poster warns of the danger of electric shock when conducting high-voltage tests. Such signs are posted on the fences of workplaces during high-voltage tests.

Overview of Electrical Safety Warning Signs

When it is dangerous to approach nearby live parts, the following signs are posted (in the form of stationary posters and plates, or painted on the body of the electrical installation):

“Stop! Voltage!" A portable sign warning that it is dangerous to approach an electrical installation. The inscription in black letters on a white background. “He will kill! Don't get in!" It is prohibited to climb inside the room or shield. “A test is being carried out! Don't come closer! They are hung directly during work involving high voltage. "Electric field. High danger. Passage without protective equipment is prohibited!”

Prohibition on movement near high-voltage installations to avoid remote electric shock. “The electrical installation is live! Be careful." The sign is posted on electrical equipment and installations of various classes to prevent electric shock.

It can also be applied with paint to the surface of concrete.

Indicative and mandatory electrical safety signs

When you need to inform about a specific place where work can be carried out, about the condition of the electrical installation, these types of signs are used:

• “Work here!” A direct indication of where it is recommended to be while performing any work.
• "Grounded." Characteristics of equipment condition. The electrical safety sign explains that the electrical installation is grounded.
• "Connected." A message indicating that electric current is being supplied to the input contacts. And you can’t get in without turning it off, you can’t repair it!
• "Live parts". A message about specific elements of an electrical installation that are energized.
• "Rotating mechanisms." Such signs are used to indicate the dangerous zone of rotation of stationary machines - milling, turning, grinding.
• "High voltage. Do not open!". This sign can be classified as a warning sign. But it also carries an indication of what cannot be done, prescribes certain limits of behavior, beyond which it is absolutely forbidden to go.
• "The line is live." The current state of power lines is characterized.
• “Get in here!” A sign indicating where you need to go up to get to your workplace.
• “Get up here!” Like the previous sign, it guides along a safe route.
• “Come here!” The sign indicates the direction of travel that must be followed when moving through a dangerous area.

Letter messages are accompanied by arrows indicating direction. It is important not to ignore what is written so as not to get injured.

The dimensions of the sign plate are 100x100 or 80x200. Usually this is a black inscription inside a rectangle on a white background.

Thus, by understanding what the sign that catches our eye is telling us, you can save your life and health, and not get into places where you don’t need to. Electricity is invisible, but nevertheless has the same danger as an earthquake, flood, or strong gusts of wind. And you should always be careful when interacting with it.

Features of application

There are certain requirements for both the manufacturing process and the operation of electrical safety signs:

• It is advisable to apply paint using stencils on metal and concrete surfaces of doors and supports. Another method is products with self-adhesive film;
• it is necessary to take into account production and climatic conditions to ensure color stability when choosing paints and varnishes;
• In case of insufficient visibility and in the dark, normal lighting of signs is required. In this case, it is mandatory to maintain visibility parameters in daylight.

Appendix 8 to clause 18.5 of the PEES contains all the information about the conditions of the installation area, sizes, shape and a complete list of posters.

To protect personnel from the consequences of electric shock during preventive and repair activities is the main purpose of the posters and signs used in electrical installations, which you have read in this article.

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Requirements for the production and operation of electrical safety signs

If you need to “leave” a sign on a stone, reinforced concrete or wooden surface, then the finished product, presented in the form of a film of the required dimensions with the appropriate inscription, is very problematic to use. Therefore, the required inscription - warning or prohibiting - is applied with paint through a stencil. A self-adhesive label can be applied to metal, painted or other smooth surfaces.

To obtain all the necessary information regarding the installation, size and shape of signs, you must read paragraph 18.5 ( PEES appendix. The overall dimensions of information posters and signs can be increased or decreased, but in a certain ratio to the sizes specified in GOST. Increase/ the reduction is a multiple of 2. For example: 2:1, 4:1, etc. Old-style signs can be replaced with modern analogues as they wear out.

Installed on poles and fences of power lines, electrical equipment and devices, doors of power panels, electrical panels and cabinets.

Our company sells posters and signs on electrical safety. They are used to warn strangers, as well as specialists working in the power supply system, about the danger of high voltage electric shock.

As a rule, safety signs are placed in electrical installations, as well as:

• on high-voltage line towers:
• on electrical equipment and electrical appliances under high voltage;
• on the doors of electrical switchboards and substations;
• in control rooms;
• on electrical panels and cabinets;
• on fences that prevent strangers from entering dangerous areas where there is a risk of electric shock.

Other posters and signs

In addition to the protective equipment from regulatory documents that are mandatory for use, there are a number of “amateur” type signs and posters. They are not mandatory, but are used to prohibit or permit certain actions with electrical equipment.

Some of them are informational and report on the technical characteristics of a line or electrical installation.

A version of a sign that reports the voltage in the network or in an electrical installation is 380 V. Today you can also find three-phase 380 V circuits in private homes

Others are variations of statutory posters and contain a prohibition or warning.

Some posters can be classified as educational. They are hung not in workplaces associated with danger, but in utility rooms, classrooms, offices - as additional educational material.

The information posted on the poster can be useful not only to workers involved in electrical installations, but also to ordinary people.

Sometimes they try to attract attention, partially using the rules for designing posters and adding something of their own:

Sometimes the signs are humorous. But the main thing is that they perform the main function - they warn or prohibit.

After reading the information on the sign, it is unlikely that anyone will want to relieve themselves in a secluded corner - both health and nature will remain safe

There are no prohibitions on the placement of posters made in loose or imprecise design. The principle “more is better” applies here, since we are talking about preserving the health and lives of people.

Examples in pictures with explanations

The decoding of signal objects is as follows:

1. Prohibiting:

   They reflect life- and health-threatening factors. These include, for example, clamping. Employees who do not comply with these guidelines risk receiving disciplinary action or being fired for gross misconduct.

2. Demonstratives:

   Help staff navigate inside the enterprise. Especially useful for beginners or students and employees of other organizations.

3. Warning:

   Serve as an indication of particularly dangerous factors that may arise during the performance of the employee’s job duties. They also mean that it is unsafe to work here.

4. Prescriptive:

   The most common information signs that contain information about the use of equipment and protective clothing in a specific area.

Prohibiting

The very name of such posters determines their main goal - this is to impose a ban on any manipulations with switching devices (switches, circuit breakers, etc.), so that when carrying out electrical work, someone does not accidentally supply electricity to the power supply network of an electrical installation. Let's look at each of the prohibition signs in order.

1. The sign indicates an area where there is a strong electric field that is dangerous to life. Passage through such an area without special protective equipment is strictly prohibited. A sign is installed on open switchgears (OSD) with a voltage of more than 330 kV and an electric field strength of more than 15 kV/meter. Placement of the poster: fencing the area at a height of at least 1.8 meters.
2. The poster is hung on switching devices such as switches, buttons, keys and so on. The sign prohibits the supply of voltage until maintenance or repair work is completed. If there are no switching elements, the poster is installed near the removed fuses. Used to ensure electrical safety in electrical installations with voltages up to 1 kV and higher.
3. The functions and installation locations of this poster are no different from the previous safety sign. Area of ​​use: underground cable and open overhead lines for supplying electrical energy, on which preventive or repair work is carried out. The poster prohibits any manipulation of switching devices until the work is completed and the poster is removed.
4. This prohibitory poster is hung on keys that are designed to control switches on high-voltage lines (VL). Functionally, the sign establishes a ban on erroneously manually turning on the power of a high-voltage power line while maintenance or repair work is being carried out on it, which could lead to electric shock to people.

The entire above list of electrical safety signs is prohibitive, as it prohibits certain actions. Posters can be either portable or stationary, installed on a permanent basis.

Product classification

According to the nature of their use, signs and inscriptions to ensure safety during operation and maintenance of electrical installations are divided into portable and stationary. Portable ones are used for the duration of certain work, and stationary ones are used for permanent use in a specific place. Depending on the functionality of the application, posters and safety signs are divided into the following four types.

1. Prohibiting. Designed to prohibit any actions with switching devices, the inclusion of which could endanger the lives of people, and also prohibit work without protective equipment inside certain objects under certain conditions.

2. Warning. Inform staff or third-party visitors about the danger of electric shock when approaching current-carrying elements of electrical equipment, equipment or electrical networks that are under voltage dangerous to human life.

3. Prescriptive. They allow preventive and repair work to be carried out at a specific location of electrical installations in compliance with occupational safety requirements, and also indicate a safe approach to this work area.

4. Index marks. Indicate the placement of various devices that impose additional requirements for electrical safety. When prohibiting and warning posters are used simultaneously, safety signs are placed on top.

Below we will look at plates, inscriptions, signs and posters on electrical safety of each type separately, with a description of installation locations and other features of use.

Prescriptive posters

Prescriptive posters are used to indicate workplaces (locations of work) in electrical installations, as well as safe approaches to them.

“WORK HERE” - indicates the workplace.

The dimensions of the prescriptive poster are 100X100 or 250X250 mm. Made in the form of a white square with sides of 80 or 200 mm, respectively, on a blue background. The inscription is made in black letters inside a square. The poster is portable.

“GET IN HERE” is also a prescriptive poster and is used when the workplace is located at a height; it indicates a safe way to climb to the workplace.

Poster dimensions – 100X100 or 250X250 mm. Just like the “work here” poster, it is made in the form of a white square with sides of 80 or 200 mm on a blue background. The inscription is made in black letters inside a square.

Prescriptive

This type of inscriptions and signs indicates a clearly defined location for a set of repair and maintenance work in various electrical installation systems, as well as completely safe approaches to this equipment. The following posters are included with these electrical safety products.

1. This poster indicates to personnel and interested parties where preventive and repair work on electrical installations and equipment is to be carried out. Installed directly at the work site.

2. This sign informs personnel of the safest route to access when carrying out any work on electrical equipment. Most often installed in passages and on stairs.

Prescriptive signs are usually used in the construction of various energy supply system facilities.

Kinds

There are a huge number of these objects. Their specificity depends on:

1. Appointments.
2. Transmitted information.
3. Colors.
4. Manufacturing material.

Based on this data, several types of signaling signs are distinguished:

1. Warning:
   bright yellow color. This is due to the fact that this symbol must be clearly visible and immediately catch the employee’s eye;
2. have the shape of an equilateral triangle, which is outlined in black at the edges. Inside such an object there is a pictogram, which most often carries information about the consequences of violating labor safety standards;
3. must warn the employee of the presence of hazards and that it is best to be vigilant and attentive to avoid accidents.
4. Prohibiting:
   have a white background with a black pictogram on it. It depicts an action that is completely forbidden to do;
5. the signal object itself is circled in red, and in the middle the pictogram is crossed out with a red line, which further emphasizes the prohibition of certain actions.
6. Demonstratives:
   their shape is square or rectangular. The signs themselves are entirely blue;
7. as a rule, they do not have a frame of a different color from the background. In the middle there is a white icon that indicates the presence of a certain object or place nearby;
8. for example, a sign with a glass and cutlery indicates that there is a food service nearby. Often used in schools for children.
9. Prescriptive:
   of blue color. There may be a white frame;
10. They are usually round in shape;
11. in the center there is a pictogram on which an object or action is drawn, without which it is impossible to fulfill one’s duties. For example, this could be a sign about wearing protective clothing to comply with electrical safety regulations or about the use of specific appliances.
12. Evacuation:
    have a green background color, in some cases they may have a white frame;
13. in the center of the sign there is a pictogram depicting the direction of movement in case of evacuation or the presence of an emergency exit;
14. In an emergency, these signs help employees find their way out as quickly as possible.
15. Fire safety:
    are on a bright red background. There is a white border around them that touches all sides;
16. they are square in shape, with a pictogram in the center depicting information regarding fire exits, direction of travel, emergency staircase, cabinet and fire extinguisher;
17. These signs must hang directly at the location of the fire extinguishing equipment.

There are also 8 types of signal objects - combined and group. All of them must be regulated in accordance with GOST 12.4.026-2015.

On this sign, there is one main symbol in the center, but in addition to it, there are others - additional ones. They can be in any order, for example, below, on the side. Positioning on top or in a corner is prohibited.

These signs are rectangular in shape, their color is white, and the pictograms are printed in black. Such signs help save work space by reducing the number of signaling objects.

A color classification of signs is provided. It is as follows:

1. Informing about the most dangerous situations and conditions, as well as strictly prohibiting specific actions, have a bright red or bright yellow signal color.
2. Those that prescribe something or are of an informational nature are indicated in blue. The equipment, tools, and special clothing required for work are depicted in the same way.
3. Signs with green color always indicate the presence of an emergency exit, as well as the directions in which you should move to get to it. They must be taken into account at the construction stage.

The enterprise may also provide special markings:

• red indicates a danger zone that must not be crossed, as this may result in injury;
• white most often delimits objects in an enterprise;
• yellow for convenience and speed of movement of the loader.

Warning signs and posters

All maintenance personnel run the risk of approaching dangerous distances from live parts without even knowing it. Warning signs and posters installed near potentially dangerous objects will help to eliminate such situations.

In such cases, the “STOP!” sign is used. voltage”, signaling the danger of contact with electric current. This poster is portable and is used in equipment with a voltage of 1000 volts and other values ​​higher or lower. The standard size is 150x300 mm, the configuration of the red boom is defined in GOST 12.4.026. There is a red border 15 mm wide along the perimeter. The letters of the inscription are black, on a white background.

The “KEEP OUT!” sign performs exactly the same function. will kill."

The "Dangerous TEST" poster clearly states the danger of electric shock during the period when high voltage testing is being carried out. It is installed on the fence of the workplace. Overall dimensions 150x300 mm, a red border 21 mm wide is applied along the perimeter. On a white background there is a red lightning bolt and black letters.

The same warning functions are performed by the sign “DANGEROUS ELECTRIC FIELD, passage is prohibited without protective equipment.” It warns of the potentially dangerous effects that a worker’s body may be exposed to under the influence of an electric field. In such cases, personnel are prohibited from moving around the facility without protective equipment.

It is located in electrical installations with a voltage of more than 330 kV at a height of 1.5-2 m. The specific installation location is the fencing of areas with an electric field strength of more than 15 kV/m. Dimensions according to GOST – 100x200 mm, border width – 10 mm. The general background of the sign is white, the letters and border are red.

CAUTION electrical voltage signs most commonly used to alert personnel. They directly indicate the danger of electric shock and are displayed in electrical installations of all classes and subclasses involved in power plants and substations

The sign is an equilateral triangle with a side of 300 mm.

These dimensions are provided when installing it on the doors of a particular room. If the sign will be placed on machines, mechanisms, or used with other electrical equipment, its sides can be 25, 40, 50, 80, 100 and 150 mm. The color of the arrow and border is black on a yellow background. To apply it to concrete surfaces, black paint and a stencil are used.

Groups of electrical safety posters

There are 13 posters and signs in total. According to the instructions, according to their intended purpose, they are divided into 4 types:

• prohibiting – to prohibit switching devices from turning on/off in order to eliminate the risk of supplying voltage to the work area;
• warning - to warn workers that live parts are nearby and protective equipment is required;
• prescriptive - for permission to work, but taking into account compliance with safety requirements;
• indicative - to indicate places where devices or objects are located (in particular, those related to grounding).

The second group is the largest. It includes 4 posters and 2 signs. There are no signs in other categories.

The sizes of signs, like posters, are regulated by GOST. Depending on the installation location (on the door, on the wall or on an electrical appliance), the dimensions may vary

Based on the nature of their use, posters are divided into 2 groups:

• permanent (this also includes signs);
• portable.

All types of posters are made exclusively from electrical insulating materials, but permanent signs can be applied with spray paint or a brush to metal and concrete surfaces - walls, parts of structures. Metal parts with marked marks must be kept away from live circuits and devices.

And now in more detail about the types of electrical safety posters.

Group #1 – prohibiting

The category includes four signs, united by the same purpose, rectangular shape and the use of a red and white color scheme.

DO NOT TURN ON people working

A rectangular portable poster, which is used at construction sites and at electrical installation sites (up to 1000 V and above) in order to protect the workplace from voltage supply.

The background is white, the letters are red. Along the perimeter of the rectangle, at a distance of 1.25 mm from the edge, there is a red stripe 5 mm wide for a 100x50 mm poster and 10 mm wide for a 200x100 mm poster.

Installation locations:

• wires of switches and disconnectors;
• switches and automatic machines up to 1000 V;
• remote control control buttons.

If a circuit with voltages up to 1000 V does not include switching devices, remove the fuses before starting work, and hang a poster near their installation site.

DO NOT ENABLE line work

A portable poster similar in design informs that people are working on the line, so supplying voltage is prohibited.

The background is red, the letters are white. Along the perimeter of the rectangle there is a white border 1.25 mm wide from the edge, the size of the posters is 100x50 mm or 200x100 mm

The purpose is the same as the first poster in the group - prohibition of actions with switching devices: buttons and switch levers, drives that supply voltage to the power cable with which installers work.

DO NOT OPEN people are working

A poster announcing the prohibition of actions that result in the supply of gas or compressed air.

The background is white, the letters are red. Along the perimeter of the rectangle, at a distance of 1.25 mm from the edge, a red stripe 5 mm wide is drawn. Poster size 200x100 mm

The poster is used at power plants and substations, in areas where electrical installations are located, so that gas or compressed air is not accidentally supplied to people performing electrical installation or repair work.

Installation locations:

• air duct valves;
• pipeline valves.

If you operate a switch or disconnector, move a valve or turn a valve, compressed air or gas (carbon dioxide, hydrogen, etc.) can cause harm to the health of electricians.

OPERATION UNDER VOLTAGE Do not switch on again

A portable poster prohibiting reactivation. Relevant for high-voltage line switches operating in automatic mode. If the line is automatically disconnected by a differential device or RCD, it can be switched on only after agreement with the maintenance personnel.

The background is white, the letters are red. Along the perimeter of the rectangle, at a distance of 1.25 mm from the edge, a red stripe 5 mm wide is drawn. Poster size 100x50 mm

The poster is hung on the control levers of the high-voltage line during repair work that involves supplying voltage.

Group #2 – warning

The group includes four posters in a red and white color scheme and two triangular signs with the image of a lightning bolt (arrow).

CAUTION ELECTRICAL VOLTAGE

A bright yellow sign warns that an electrical hazard exists and is posted or painted where live lines and devices are installed.

The background is yellow, the arrow and the border around the perimeter are black. The side size of the sign for doors is 30 cm, for equipment – ​​from 2.5 to 15 cm. Design is regulated by GOST R 12.4.026

This is a permanent sign that can most often be found at substations and power plants.

Installation locations:

• entrance doors of control chambers, transformers and switch chambers;
• doors of electrical panels with voltage up to 1000 V;
• fencing structures of industrial premises, workshops of enterprises, repair areas.

For populated areas - villages, towns, cities, ports, agricultural enterprises, railway stations, beaches, etc., the same version of the sign is used.

The sign is mounted on metal or wooden supports of high-voltage lines at a height of 2.5-3 m from the ground surface. If the distance between the supports is more than 100 m, as well as when crossing the road, the sign must hang on each support. If the spans are less than 100 m, then it is hung not on each support, but through one.

CAUTION ELECTRICAL VOLTAGE

Like the previous sign, it warns of the risk of electric shock. The design is the same, but the background color is different.

The background is white, the arrow and the border around the perimeter are black. The side size of the sign is from 2.5 to 30 cm. Design is regulated by GOST R 12.4.026

A permanent sign designed specifically for placement on reinforced concrete supports and concrete fences of outdoor switchgear.

STOP voltage

A portable rectangular poster warning of the dangers of electric shock.

The background is white, the letters are black, the arrow and stripe are red. A strip 15 mm wide is drawn along the perimeter of the rectangle at a distance of 1.25 mm from the edge. The arrow image is regulated by GOST R 12.4.026. Poster size – 300x150 mm

The poster is intended for use in substations and power plants.

Installation locations:

• temporary fencing for live devices and lines;
• barriers placed in aisles;
• permanent fencing of cells adjacent to the working area.

In switchgears located on the street, the poster is hung on cords that serve as fencing, as well as on structures made of wood, concrete or metal located close to live lines.

TEST is life threatening

A portable poster used during test work - when high voltage is applied and there is a threat to health.

The background is white, the letters are black, the arrow and stripe are red. A strip 15 mm wide is drawn along the perimeter of the rectangle at a distance of 1.25 mm from the edge. The arrow image is regulated by GOST R 12.4.026. Poster size – 300x150 mm

The poster is hung before carrying out work on testing high voltage lines. It is mounted on equipment or enclosing structures with the inscription facing outward.

Danger! Keep out

A portable poster that warns of the risk of electric shock when climbing on structures or devices.

The background is white, the letters are black, the arrow and stripe are red. A strip 15 mm wide is drawn along the perimeter of the rectangle at a distance of 1.25 mm from the edge. The arrow image is regulated by GOST R 12.4.026. Poster size – 300x150 mm

Usually the poster is hung not on a structure with a staircase leading to a workplace located at a height, but on an adjacent one.

DANGEROUS ELECTRIC FIELD without protective equipment, passage is prohibited

The poster is permanent and prohibits staying near the electric field without protective equipment. If this requirement is not followed, there is a risk of electric shock.

The background is white, the letters are red. Along the perimeter of the rectangle, at a distance of 1.25 mm from the edge, a 10 mm red stripe is drawn. Poster size 200x100 mm

The poster is intended for outdoor electrical devices with voltages above 330 kV.

Installation locations:

• routes along which distribution devices are bypassed;
• workplaces located near an electric field.

A prohibitory poster is hung at a height of 1.5-2 m either on a fence or on a specially installed pole.

Group #3 – prescriptive

Signs in this group do not prohibit or warn, but serve to indicate places of work. They are distinguished by their square shape and blue and white color scheme.

WORK here

The prescription is obvious - a specific place for the repair team or maintenance personnel to work is indicated.

The background is white, the letters are black. A blue stripe is drawn along the perimeter of the square, at a distance of 1.25 mm from the edge. Size – 100x100 mm, 250x250 mm

A portable poster is hung at substations and power plants to indicate workplaces. If the switchgear is located on the street, the best installation location is in the area of ​​passage behind the fence.

CLIMB HERE

The regulation defines where you need to climb to a high-lying workplace to avoid danger.

The background is white, the letters are black. A blue stripe is drawn along the perimeter of the square, at a distance of 1.25 mm from the edge. Poster size 100x100 mm, 250x250 mm

Installation sites are stationary ladders or other structures specially designated for safe ascent to the workplace.

Group #4 – index

In this group there is only one portable poster indicating the prohibition of supplying electric current to a separate grounded section of the device or electrical installation.

GROUNDED

The poster is relevant for power plants or substations; it is mounted on switches, drives and remote keys that regulate the supply of electricity to grounded areas.

The background is blue, the letters are white. Along the perimeter of the rectangle there is a white border 1.25 mm wide. Poster size 100x50 mm and 200x100 mm

In addition to standard posters, it is allowed to hang larger ones if the equipment in electrical installations is large in size. The dimensions are regulated by the same GOST R 12.4.026.

Pointing

The only instructional poster is “Grounded,” which indicates that the electrical installation is grounded and no voltage must be applied to it. Installation location – drive of switching devices. If a prohibition and an instruction sign are used at the same time, the latter must be posted in the foreground.

So we have provided posters and safety signs used in electrical installations

Please note that it is allowed to increase the size of the plates when installing them on large equipment. In this case, the magnification must be done in a ratio of 2:1, 4:1 or even 6:1

You can get additional information about sizes in SO 153-34.03.603-2003. We hope you now know what types of electrical posters and signs are divided into, and what are the conditions of use for each classification.

Finally, we recommend watching a video that explains all the safety signs:

It will be useful to read:

• Tests on the operation of electrical installations
• Programs for drawing electrical circuits
• How to become an electrician from scratch

Published: 05/18/2016 Updated: 08/18/2017

Difference between signs and posters

The main difference between them is their purpose. In short, the function of signs is to inform about permanent factors, for example, to warn maintenance and repair personnel about the possibility of accidental contact with live structural elements. Accordingly, fixed places are provided for the location of these.

ES signs can be made of metal or dielectric materials; it is allowed to paint them or apply a film with a pattern. In the first case, when a metal base is used, the installation is carried out at a safe distance from live elements.

These safety equipment are displayed in accordance with their intended purpose. Unlike signs, they can be permanently located or portable.

Manufacturing requirements

The production of milestone signs is clearly regulated by GOST 12.4.026-2001.

• Warning signs should have a triangular shape with a yellow signal color. The same GOST defines the basis for prohibitory signs. The main signal color here is red. The prescribed predetermined shape is a round shape with a blue signal color.
• Dielectric materials are used to make signs. GOST recommends the use of non-flammable PVC plastic with a thickness of 2 to 4 mm with a photoluminescent or reflective base. Metal may only be used for signs remote from electrical installations.
• It is allowed to print safety signs and explanatory notes on film with a self-adhesive backing.
• It is allowed to mark and place stationary electrical safety signs with paint using stencils. At night, all electrical safety information should be backlit.
• If safety signs are voluminous, then the quality of the design must be durable, the sign must be securely attached. Installation and dismantling for maintenance and repair should be as simple as possible.
• Safety signs in electrical installations that are intended to be placed outside buildings must be resistant to various atmospheric influences: rain, snow, frost, dust, fog and sunlight.

For your information! Sign All sizes of signs are calculated from the point of view of readability and are given in GOST 12.4.026-2001.

Features of manufacturing electrical safety signs

All information products intended to ensure electrical safety must be made of dielectric materials. Metal can only be used for products that are located away from parts of equipment and electrical installations that are under voltage that is dangerous to humans. Signs of permanent use (stationary), to be placed on concrete and metal structural elements of buildings and equipment, can be applied with special durable paints using stencils or using products based on self-adhesive film. At night, all electrical safety posters and signs must be illuminated.

Posters as means of protection

Brightly colored images with explanatory inscriptions or symbols are called posters or safety signs. They have a certain geometric shape: rectangular, triangular, square.

Posters are needed to warn both workers and bystanders about the potential hazards posed by electrical installation equipment. Some posters directly prohibit performing certain actions, others carry an informational load, others allow and order work.

To make posters or signs catch the eye, contrasting or signal colors and their combinations are used for the background and inscriptions: red/white, blue/white, black/white, black/yellow

The document applies to any means of protection used by organizations of various forms of ownership - both state enterprises and private property, especially if the voltage in electrical installations is above 1000 V.

The main document in which you can find information about posters and safety signs on electrical safety is SO 153-34.03.603-2003. It is called “Instructions for the use and testing of protective equipment used in electrical installations”

Workers involved in work in electrical installations must be provided with protective equipment, including posters, and explained how and where they should be used in order to ensure the safest possible working conditions. Portable signs must be part of the inventory that field teams are armed with.

Like other means of protection, signs and posters need to be properly stored and transported, and permanent ones must be in proper condition, that is, clean, dry, undamaged, with clearly readable inscriptions

Posters and signs are made in accordance with GOST. Unlike tools and clothing, they do not require markings and do not need to be numbered or otherwise marked.

Posters as one of the important elements of protection

Posters are installed to warn technical personnel about the possible danger that may come from existing electrical installations.

The posters are highlighted in bright colors and have certain inscriptions written on them.

Technical employees working with operating high-voltage equipment are provided with protective equipment.

Signs must be properly stored, transported and located in specially designated areas.

Classification

Safety signs can be seen in the form of portable signs, posters, stencils, as well as symbols printed on the surface of the electrical installation body or fence

It is important to understand the meaning inherent in them - protection. They require appropriate behavior where they are established; they symbolize rules that must not be violated under any circumstances.

All electrical safety signs shown in the photo are standardized in size. The text may vary depending on the scope and purpose.

When they are applied to the housing or enclosure of an electrical installation, they are subject to specific requirements.

Depending on their purpose, all safety signs are divided into the following types:

• Stationary;
• Pointing;
• Prohibiting;
• Prescriptive;
• Portable;
• Warning.

Prohibition posters

The “LOGINE OPERATION DO NOT RE-ON” sign is used to prohibit manual re-closure of overhead line switches after they have been automatically switched off. Such actions must be coordinated with the work manager.

These electrical safety posters must be posted on the control keys included in the overhead line switches. They are hung when performing repair work under voltage. The standard size of the poster is 100x500 mm, with a red border 5 mm wide running along the perimeter. The inscription's letters are red and printed on a white background.

Poster “DO NOT TURN ON! People are working” is figurative. It prohibits applying voltage to the line in all cases. It is hung on buttons, keys and switchgear control drives. When you turn it on, the voltage will definitely get to the line, so this should not be done under any circumstances. These posters are used in electrical installations with voltages not only up to 1000 volts, but also above this value.

The poster dimensions are standard – 100x200 mm, with a perimeter border 5 mm wide. The inscription uses red letters on a white background.

Portable poster “DO NOT TURN ON! operation on the line" prohibits the supply of voltage to the line. It is also hung on the control elements of the switching equipment of electrical panels, when turned on, voltage can be supplied to the line. The inscription is written in white letters on a red background without a border. Overall dimensions are standard – 100x200 mm.

Prohibitory signs “DO NOT OPEN by people working” are also portable. They are hung on valves and gate valves that shut off the air supply to pneumatic switching equipment. An error when opening these devices may cause the equipment on which the work is being performed to turn on. This symbol also applies to gas cylinders, as well as hydrogen or oxygen pipelines, which, if opened, could cause injury to workers with serious negative consequences. The dimensions of the sign are standard; there is a red border around the perimeter.

Review of prohibitory signs on electrical safety

To prevent the unintentional supply of current to disconnected equipment during repair and maintenance activities, portable signs with bright letters on a snow-white background are used:

• “Do not turn it on again! Work under tension! It is hung on the device responsible for turning on the voltage after it has been directly turned off. You cannot remove the sign or do anything without the permission of the repair supervisor.
• “People are working! Do not turn on!". Mobile sign. Placed on control buttons, switches, switches to prevent voltage supply during repair and maintenance activities.
• "Do not turn on! Work on the line! Also prohibits the supply of voltage to a disconnected cable. It is hung on voltage supply devices directly to the disconnected power line.
• "Do not open! People are working! Placed on various oxygen, hydrogen cylinders, pipelines, the opening of which can cause harm.