What applies to power tools and auxiliary equipment. Portable power tools and lamps, manual electric machines, isolation transformers. What is electrical equipment

What is electrical equipment

At present, specialists understand electrical equipment as the totality of all machines, mechanisms, devices, which are united by a common technological scheme for generating and processing energy. Electrical equipment is an integral part of all engineering systems, consisting of a wide variety of parts and assemblies.

So, in particular, electrical equipment includes:

Industrial low voltage installations, as well as ballasts (contactors, starters, relays, switches, etc.);

All kinds of signaling and control systems, including frequency converters and so-called soft starters;

- a variety of auxiliary devices and devices;

Industrial sensors, logic modules, cable systems, household electrical equipment (sockets, lamps, etc.).

In modern life, electrical equipment, and electricity itself, are not considered something unusual. We use electricity in all areas of economic activity and are accustomed to the fact that comfort and normal conditions for work and life largely depend on it. Mankind is very dependent on electricity, because its very existence depends on it. Well, electrical equipment in this case is the conductor that brings electricity to our homes. Many people are not even aware that the world of electrical equipment is simply huge and covers not only light bulbs and meters in our apartments. There are huge research institutes whose main task is to develop ever newer and more efficient instruments and devices. Nowadays, there are even firms on the market that can develop and implement your individual projects.

Electrical equipment can be purchased from a variety of places, including specialist shops, markets and supermarkets. The purchase of such devices, as well as their installation, should be carried out only in those companies that have proven themselves in the market, have an impeccable reputation and can perform work of any complexity in the shortest possible time. Many of them, by the way, offer customers and repair of electrical equipment, which will allow you to achieve significant cost savings and bring your power systems to the state of the art in this area.

Portable power tool classes

0 - electrical receivers with working insulation, without elements for grounding and not classified as class II or III

I- electrical receivers with working insulation and an element for grounding. The wire for connecting to the power source must have a grounding conductor and a plug with a grounding contact. The designation at the grounding contact is PE or white-green stripes or the word "earth" in a circle

II- having double or reinforced insulation and not having elements for grounding. Designation - double square

III- electric receivers for operation at safety extra-low voltage, which do not have either external or internal electrical circuits operating at a different voltage. Designation - rhombus with III

Extra low (low) voltage- not exceeding 50 V AC or 120 V DC.

When working with class I, gloves, boots, galoshes, rugs are used

When connecting a class I tool through an RCD, electrical protective equipment can be omitted.

To work with portable tools and hand-held electric machines of class I in rooms with increased danger, personnel with group 2 in electrical safety should be allowed

Before starting work with hand-held electric machines, portable tools and lamps, you should:

1. determine the class of the machine or tool according to the passport
2. check the completeness and reliability of fastening parts
3. make sure by external inspection that the cable, its protective tube and plug are in good condition
4. check the operation of the switch
5. perform (if necessary) RCD testing
6. check the operation of the tool at idle
7. it is not allowed to use manual electric machines, portable tools and lamps that are defective or have not passed periodic checks or tests.
8. for class I machines, check the serviceability of the ground circuit

Employees using electric tools and manual electric machines are not allowed to:

1. transfer machines and tools, even for a short time, to other employees
2. take apart
3. make repairs
4. hold on to the wire
5. touch rotating parts or remove chips/chips until they come to a complete stop
6. install the working part in the tool chuck and remove it from the chuck, adjust the tool without disconnecting it from the mains
7. work from ladders; for work at height, portable scaffolding and scaffolding should be arranged

When transferring a power tool from one workplace to another or a break in work, the tool must be disconnected from the mains with a plug. The tool should be carried by holding it only by the handle.

In the event of a sudden stop, the power tool or hand-held electrical machines must be disconnected from the mains.

The Government of the Russian Federation has expanded the list of technically complex goods, supplementing it with a new position - electrified tools (hand-held and portable electric machines) (Decree of the Government of the Russian Federation of September 17, 2016 No. 929 "). These include, for example, electric drills, electric grinders and electric cutting machines, electric wrenches, electric hammers, etc. ().

Such a change means a special procedure for regulating the rights of consumers when defects in goods are discovered. In particular, they may refuse to fulfill the contract of sale and demand a refund of the amount paid or exchange the goods for a similar one, but as a general rule within 15 days from the date of sale (clause 1, article 18 of the Law of the Russian Federation of February 7, 1992 No. 2300-I ""; hereinafter referred to as the consumer protection law).

But at the same time, these actions can be performed after 15 days, but only in the established list of cases: if a significant defect in the goods is found (for example, which cannot be eliminated), if the deadlines for eliminating defects are violated. This also applies to cases where the product cannot be used during each year of the warranty period in the aggregate of more than thirty days due to the repeated elimination of its various shortcomings ().

If the seller, at the conclusion of the contract, stipulated that he was selling the goods with defects, are the relevant requirements of the buyer subject to satisfaction? Learn from the material "The rights of the buyer in case of defects in the goods" in "Home Legal Encyclopedia" Internet version of the GARANT system. Get 3 days free!

By the way, technically complex goods currently include: digital photo and video cameras and lenses for them, refrigerators, computers, game consoles with a digital control unit, wrist and pocket mechanical watches, as well as electronic ones, etc. The same applies to some vehicles - cars, motorcycles, floating vehicles with an electric motor and others (Decree of the Government of the Russian Federation of November 10, 2011 No. 924 "").

There is a wide range of power tools on the market, but not everyone knows how to make the right choice. Therefore, it is worthwhile to understand the classification and purpose of products before starting. Each requires its own equipment and tools. Understanding this issue is not so difficult. And today we will consider the types of power tools, purpose, application and features.

Main differences

There are several different classifications. The first one is by appointment.

1. To create holes, various recesses and carving, there are: drills, screwdrivers, rotary hammers, jackhammers and thread cutters. There are other options, but this list is the most common and frequently seen on the market.
2. For wood finishing. These are planing, sawing, and milling. This includes a jigsaw, a planer, a variety of saws, milling cutters and a grinder. These are the main types of power tools that a person needs. If needed, you can buy something else.
3. To make the part flawless, it is ground and polished. It is not always possible to do this manually. So, there are files, and wall chasers. With them, the detail becomes flawless in a short period of time.
4. There are also such types of power tools, without which it is difficult to imagine any work. These are hair dryers, a vacuum cleaner, a soldering iron and other related equipment. They are classified as home appliances. These are available in every house or apartment.

There are different types of hand power tools. These are the ones that can be carried and used anywhere. They can be used depending on the need, which is very convenient. But there are those with which you can do some work, but you can’t transfer it all the time.

It is clear that portable ones are capable of performing a wide variety of functions, but the advantage of a stationary one is the performance of complex and high-quality work. It's good to have both of these options at hand to get the job done.

Types of power tools by type of email. security

You can find the following classification:

• 0 - this includes tools in which all parts are energized, there are no components for grounding;
• 0I - also all parts with current, while there is grounding and working insulation;
• I - power tools with the same component as the first two (the presence of insulation and grounding contact);
• II - all parts are energized and well insulated, but there is no grounding;
• III - voltage not more than 50 V, the power tool is powered by safe low voltage.

Another subdivision method

Today, the entire tool is divided into classes. They make it easier to understand what to choose and how to work. The main types of power tools for their intended purpose:

• industrial;
• heavy duty;
• professional;
• hobby.

Each of them has its own characteristics and features. In addition, it is worth understanding how they work. Some are able to perform tasks for long periods of time, while others will need to be given a break or recharge. Before making a purchase, it is worth considering this. Otherwise, the service life may be reduced.

Industrial

This is the name of tools that work for a long time without breaking. Most often they are attributed to the conveyor process, so they do not turn off for 15-18 hours. Such units are distinguished by a long service life and reliability. In addition, repairs are often not required. There is one feature. Power tools of this type usually work in enclosed spaces, which means they must be completely environmentally friendly.

Ergonomics is another requirement for such installations. Calling Industrial devices multifunctional will not work, because they have limited capabilities. They are allowed to people with special education, so the level of security is low. Before starting work, it is worth creating certain conditions for operation:

• the desired level of voltage in the network and the maximum reliability of the wiring;
• humidity indicator in the room;
• temperature at which the device will not fail;
• dustiness level.

Only in this way will the tools be able to fully work and perform their tasks. If the conditions are not met, devices can quickly fail, although this is unusual for them.

heavy duty

Translated from English, this means "heavily loaded." This includes such types of instruments that, in terms of their characteristics, can be compared with the first. Although there is a significant difference, there is no need to create certain conditions. This is achieved by changing the design:

• additional protection against moisture;
• dust trap;
• high level of impact resistance.

But the positive aspects do not end there. It is possible to use consumables and parts from simpler models during operation. They cannot be found on the shelves of ordinary stores, as this is a specialization of a narrow spectrum. If necessary, they are made and delivered by special order.

professional

This is the most popular type of professional tool. They are actively used at work. With their help, the most durable components and parts are created. The whole structure is highly reliable during operation. In addition, these devices have the following properties:

• assembly accuracy;
• high level of work and a long period of operation;
• ease of maintenance;
• adaptability to severe loads and adverse conditions.

Devices can function without stopping up to 9 hours. This is enough for one shift for workers. In terms of environmental performance, this tool is inferior to the first two, but only slightly. But the ergonomics are lower, since the period of work is no more than 9 hours. Although there is a big plus - this is an increase in the level of safety during the period of work. This means that not only masters can work with them. In the event of failure, it will be easier to find a replacement part than to power tools of the first two types.

hobby

Many people need a household power tool. Hobby can be amateur, garden, garage. And it is not used often (from period to period). From this it is clear that he will not be able to work for a long time without stopping. When assembling, high-power engines are not used, since a high efficiency index is not required at the output. But devices can work during the day up to five hours. However, minor breaks are made in the process so that the unit does not fail.

There are also significant drawbacks. So, much attention is not paid to ergonomics, namely the protection of the user. But these types of tools are used by many, since additional skills and experience are not required. The entire arsenal of units should not be subjected to harsh operating conditions, because most often one person works with it. But the level of maintainability is low. Maintenance is not required (except for a personal inspection before starting work).

These are the main types of power tools into which the entire commercially available composition is divided. From this list, everyone understands what exactly he needs to purchase. Although there is another group that is worth knowing about.

Universal Devices

Today on sale you can find such power tools that have a wide variety of functions. In addition to their main purpose, they are able to do something additional. This is not even one operation, but several. This includes a screwdriver, because it: tightens screws, makes holes, can act as a construction mixer, but subject to high power. A drill is another representative of such a group. His abilities are great - puncher, screwing, making holes. In such electrical equipment, you only need to change the nozzle and add or reduce power.

But giving preference to units that have many functions, do not forget about a slight minus. Not always additional work will be performed qualitatively. And to understand why this happens is not difficult. Any process implies its speed, power and duration. From this it can be seen that sometimes it is necessary to have highly specialized electrical installations in order to achieve the desired result and quality in work. Performing actions at the limit of its capabilities, the tool will simply fail or the consumable will break.

Conclusion

So, we examined the types of power tools and the area their applications. Types can be very diverse. Also, the devices differ significantly in price. In such a situation, it is clear that in some works one cannot do without a highly specialized power tool. Not everyone needs such a unit all the time. In this case, you can take the device for a while or rent. But work with him will turn out much better and faster. The main thing you need to know: choose the right types of power tools. The scope is what you need to pay attention to.

General provisions.

1.1. The instruction was developed on the basis of DNAOP 0.00-8.03-93 "Procedure for the development and approval by the owner of labor protection regulations in force at the enterprise", DNAOP 0.00-4.15-98 "Regulations on the development of labor protection instructions", DNAOP 0.00-4.12-99 " Standard regulation on training on labor protection", DNAOP 0.00-1.28-97 "Rules for labor protection in road transport", NAPB A.01.001-95 "Fire safety rules in Ukraine".

1.2. The instruction on labor protection when working with power tools establishes safety requirements that must be observed when working with power tools.

1.5. The instruction is issued to all those working with power tools against signature. The worker must always have the instructions with him when working with power tools.

1.6. For violation of the requirements of the instructions, the perpetrators are liable in accordance with the current legislation.

1.7. Only tools that comply with the regulations for a particular type of tool may be used.

1.8. Work must be performed only that which is entrusted to the immediate supervisor, and carried out with a serviceable tool, using it only for its intended purpose.

1.9. Drilling holes and punching furrows in the structures of buildings in which hidden electrical wiring, pipelines, etc. are located, should be done only after the voltage has been removed from the corresponding electrical networks (the corresponding pipelines have been blocked).

It is necessary to carry out these works according to a work permit, which indicates the layout of hidden electrical wiring, pipelines, etc., as well as the necessary additional security measures.

Mandatory requirements for personnel working with power tools.

2.1. Persons who have been trained in safe working methods, tested knowledge on labor protection issues, have received an appropriate certificate with a record of admission to work with power tools, who have a qualification group for electrical safety, as well as practical skills in working with power tools, are allowed to work with power tools.

2.2. In order to prevent vibration diseases, all workers engaged in work with vibration-action power tools must undergo a medical examination at least once a year.

2.3. Persons working with power tools must know:

Techniques for providing first aid to victims;

Standard (or developed at the enterprise) instructions for labor protection when working with power tools.

Classification of power tools and requirements for it.

3.1. A power tool includes a tool that is powered by an electric current source: an electric hammer, an electric chisel, an electric drill, an electric planer, an electric saw, an electric grinder, an electric soldering iron, etc.

3.2. The classification of power tools with respect to safety is shown in table 1.

3.3. Class II power tools are only available for voltages above 42 V and are marked.

3.4. The plug of a class III tool must be designed so that it cannot be mated with a socket-outlet rated at voltages greater than 42 V.

3.5. To connect the power tool to the power supply, only the cable (cord) supplied with the tool must be used.

If it is necessary to extend the cable (cord) of the power supply, it is allowed to use a hose wire, for example, of the ShRPL or ShPRS type with a cross section corresponding to the power of the tool. In the absence of such wires, it is allowed to use flexible wires (for example, PRG type) with insulation for a voltage of at least 500 V, enclosed in a rubber hose.

Table 1

Power tool classification

3.6. The grounding of the body of the power tool must be carried out using a special core of the wire for power, which should not simultaneously serve as a conductor of the working current. It is forbidden to use a neutral working wire for this purpose. In this regard, a four-wire hose wire must be used to power a three-phase power tool, and a three-wire hose wire for a single-phase power tool.

The class 1 power supply cord of a class 1 tool must have a plug at the end with the appropriate number of working contacts and one for grounding. The design of the plug must ensure that the contact for grounding is turned on ahead of time and it is turned off after the other contacts are disconnected. If such plugs are not available, it is allowed to ground the tool with a bare flexible copper wire with a cross section of at least 4 mm2, which must be connected to a special ground bolt located on the body of the tool.

3.7. In cases where the power tool is powered by a step-down transformer, the body of the power tool must be earthed by connecting the earth conductor to the earth terminal of this transformer.

3.8. All power tools must be inventoried, have a serial number on the body and be recorded in a special journal in which its periodic inspections are noted.

3.9. Power tools should be stored in a dry, heated room in cabinets or on shelves.

3.10. For work, it is allowed to use a power tool that has been tested for the absence of a short to the ground, a broken core for grounding or a power wire, as well as an insulation resistance test (the test must be carried out with a 500 V megger at least 1 time in 6 months).

Repair of power tools should be carried out in specialized enterprises (divisions).

4. Rules for the use of power tools.

4.1. The possibility and rules for using power tools are determined by the category of the room in which the tool is used, according to the degree of danger of electric shock.

4.2. Determining the degree of danger of all industrial premises and assigning them to the categories indicated in the table is issued by order for the enterprise.

4.3. Power tools should be used according to table 2.

4.4. If it is impossible to provide workers performing work (except for construction and installation work) in rooms with increased danger with tools of classes II and III, and in rooms with special danger and outdoors with tools of class III, it is allowed to use tools of classes I and II, provided that the tool (and only one) is powered by a stand-alone engine-generator set, isolation transformer, or via a residual current device.

Work is carried out using personal protective equipment and grounding of the tool body class I.

table 2

Conditions for the use of power tools depending on the category of the room

4.5. When performing construction and installation work, it is allowed to use only power tools of classes II and III and only with personal protective equipment.

4.6. Outdoor work is only permitted with a power tool that is protected from moisture (the marking of the tool contains "a drop in a triangle" or "two drops"). With a tool that does not have such marking, outdoor work is allowed only in dry weather, and in case of rain and snowfall - under a canopy on dry ground or flooring.

5. Safety requirements before starting work

5.1. Before starting work, you must:

Wear work clothes;

If necessary, prepare special anti-vibration gloves (soft gloves with double padding), goggles (safety glasses), knee pads, elbow pads, earmuffs, safety belt;

Inspect the workplace, remove objects that interfere with work, and clear the aisles.

5.2. Depending on the nature of the work, you need:

Obtain a work permit when performing the work specified in clause 1.8;

Check the conformity of the tool class (according to the marking) to the nature of the work performed;

Wear protective goggles, as well as special vibration-protective gloves when working with a percussion tool;

Fasten the cuffs of the sleeves and remove the hanging ends of the clothing when working with a tool that has rotating parts;

Prepare and put on a safety belt when working at a height of more than 1.5 m;

Wear knee pads and elbow pads when working lying down;

Wear anti-noise headphones when working inside any vessels with significant noise technological operations.

5.3. Make sure that the workplace is sufficiently illuminated and, if necessary, use a portable electric lamp, which must be equipped with a safety net with a reflector and a hook for hanging, after checking the serviceability of the lamp wire. In rooms with increased danger, it is allowed to use portable electric lamps with a voltage of not more than 42 V, and in especially dangerous rooms and outdoors - no more than 12 V.

5.4. Check: tightness of the screws securing the components and parts of the tool; the condition of the wire, the absence of external damage to its insulation and a break in the cores; serviceability of the switch and grounding; idle operation of the tool. At the same time, it is only allowed to connect the power tool to the power supply when the switch is in the "Off" position.

The following defects are not allowed:

Damage to the plug connection, power cable (cord) or its insulation;

Fuzzy operation of the switch;

Damage to the brush holder cover;

Cracks and other damage that reduce the strength of the body, handle;

Oil leakage from gearbox or ventilation ducts.

5.5. The power cord of the power tool should, if possible, be suspended. In the case of laying the wire on the ground (floor), it should be protected from mechanical damage: close, install fences, hang warning posters.

Direct contact of the wire with metal, hot, wet and oily surfaces is not allowed.

5.6. When working with an electric drill, objects that are to be drilled must be securely fastened.

6. Safety requirements during work

6.1. The tool must be immediately switched off by the switch in case of a sudden stop (due to power failure, jamming of moving parts, etc.).

6.2. The tool must be switched off from the power supply:

In the event of a sudden stop due to the reasons specified in clause 6.1.;

During a break in work;

When transferring a tool from one workplace to another;

During the absence of the employee from the workplace;

After the end of work or work shift;

With strong heating of the tool body;

When a weak action of an electric current is detected;

When the circuit breaker fails;

When installing, replacing or adjusting the working tool.

6.3. If a malfunction of the power tool, strong heating of its body or weak action of electric current is detected after turning off the tool from the power supply, inform the work manager (immediate supervisor) about the need to replace the power tool and hand over the faulty power tool for inspection (for repair).

6.4. When chopping, riveting and other similar work, in which the flying of metal particles is possible, it is necessary to use goggles and install portable fencing shields so that people working or passing near the work site do not get injured.

6.5. When working with an electric drill, remove metal chips with special hooks and brushes after stopping the drill.

6.6. When working with a heavy electric hammer, grinder and other tools weighing more than 10 kg, it is necessary to hang them on a spring balancer or a special suspension.

6.7. Workpieces must be placed on work tables or other devices in an appropriate way and in such a way that they cannot be moved during work.

7. Safety requirements after work is completed.

7.1. Turn off the tool with the switch, disconnect the power cord of the power tool from the power supply and remove the working tool from the power tool chuck.

7.2. If necessary, carry out preventive maintenance of the power tool in accordance with the instruction manual.

7.3. Tidy up your workspace.

7.4. Take the power tool to the pantry or put it away in the place provided for storage.

8. When working with a power tool, IT IS FORBIDDEN:

Work in explosive areas;

Use for work a power tool that has the defects specified in paragraph 5.4 .;

Ground the tool body of classes II and III;

Exceed the duration of continuous operation specified in the tool passport;

Transfer the power tool, at least for a short time, to other persons who do not have the right to work with it;

Touch the cutting or rotating parts of the power tool;

Hold on to the cord of a power tool;

Remove shavings or sawdust with your hands;

Work with ladders;

Treat frozen and wet wooden parts;

Pull and bend the power cables of the power tool;

Cross the power cables of the power tool with other cables, cables, electric welding wires and gas cutter hoses;

Use an autotransformer to power the power tool;

Cool the body of the power tool in case of overheating with snow or water;

Continue to work if: smoke or smell characteristic of burning insulation; circular fire on the collector due to increased sparking of the brushes; increased noise, knocking, vibration; damage to the working tool.

9. Actions in emergency situations.

9.1. When working with power tools, the following emergencies are possible:

Short circuit in the power supply network of the power tool with possible further ignition of the electrical wiring;

Damage to hidden electrical wiring with possible short circuit and fire;

Damage to hidden pipelines with possible release of hazardous liquids, vapors, gases;

Electric shock to a worker;

Damage to an employee by dangerous liquids, vapors, gases;

Other emergencies not directly related to the operation of a power tool.

9.2. Each worker, who was the first to identify the threat of an emergency situation, must immediately stop working and give the STOP command.

9.3. The "STOP" command given by any employee must be immediately followed by all employees who hear it.

9.4. The employee is obliged to immediately inform the work supervisor (immediate supervisor) about the threat of occurrence or the occurrence of an emergency.

9.5. If a short circuit occurs in the power supply network of the power tool or in another electrical network (electrical installation), immediately stop work and turn off the damaged electrical network (electrical installation).

It is forbidden to eliminate the short circuit on your own.

9.6. If the electrical wiring (electrical installation) catches fire, immediately stop work, turn off the electrical network (electrical installation) and start extinguishing the fire with a carbon dioxide fire extinguisher.

Extinguishing fires in electrical installations with foam fire extinguishers is prohibited.

A fire in the electrical network (electrical installation) must be reported to the fire brigade.

9.7. If hidden pipelines are damaged, stop work, close the damaged pipelines if possible and leave the danger zone.

9.8. If an employee is struck by an electric current, release the victim from the action of electric current: turn off the power supply: separate the victim from current-carrying parts using dielectric protective equipment or other insulating things and objects (dry clothes, dry stick, rubberized material, etc.); cut or cut the wire with any tool with an insulating handle.

9.9. If an employee is hit by hazardous liquids, vapors, gases, remove (take out) the victim to a safe place.

9.10. In all cases, call a doctor to the victim, and before his arrival, provide the victim with first aid.

9.11. In the event of a threat or other emergencies that are not directly related to the operation of a power tool, act in accordance with their duties in accordance with the Accident Response Plan.

(head position

Subdivisions

/organization/developer)____________________________________________________________

AGREED:

Head (specialist)

Security Services

Labor of the enterprise ________________________________________________________

(personal signature) (surname, initials)

Legal Counsel ________________________________________________________

(personal signature) (surname, initials)

Chief technologist ________________________________________________________

(personal signature) (surname, initials)

• 10.1. Portable power tools and lamps, hand-held electrical machines, isolation transformers and other auxiliary equipment must meet the requirements of state standards and technical specifications regarding electrical safety and be used in compliance with these Rules.
• 10.2. Group II personnel must be allowed to work with portable power tools and hand-held electric machines of class I in rooms with increased danger.

Connecting auxiliary equipment (transformers, frequency converters, residual current devices, etc.) to the electrical network and disconnecting it from the network must be carried out by electrical personnel of group III operating this electrical network.

• (in
• 10.3. The class of portable power tools and hand-held electric machines must correspond to the category of the premises and the conditions for the production of work with the use of electrical protective equipment in some cases in accordance with the requirements given in Table. 10.1.
• 10.4. In rooms with increased danger and especially dangerous, portable electric lamps must have a voltage of not more than 50 V.

When working in particularly unfavorable conditions (switch wells, switchgear compartments, boiler drums, metal tanks, etc.), portable lamps must have a voltage of no higher than 12 V.

• 10.5. Before starting work with hand-held electric machines, portable power tools and lamps, you should:
  • determine the class of the machine or tool according to the passport;
  • check the completeness and reliability of fastening parts;
  • make sure by external inspection that the cable (cord), its protective tube and plug are in good condition, that the insulating parts of the body, the handle and covers of the brush holders, and protective covers are intact;
  • check the clarity of the switch;

Terms of use in the work of power tools and hand-held electric machines of various classes

(As amended by the Amendments and Additions, approved by the Ministry of Labor of the Russian Federation on February 18, 2003, the Ministry of Energy of the Russian Federation on February 20, 2003)

• perform (if necessary) testing of the residual current device (RCD);
• check the operation of the power tool or machine at idle

Check the serviceability of the ground circuit of the class I machine (housing

machine - the grounding contact of the plug).

It is not allowed to use hand-held electric machines, portable power tools and lamps with related auxiliary equipment that have defects and have not passed periodic checks (tests).

• (in ed. Changes and additions, approved. Ministry of Labor of the Russian Federation 18.02.2003, Ministry of Energy of the Russian Federation 20.02.2003)
• 10.6. When using power tools, hand-held electric machines, portable lamps, their wires and cables should, if possible, be suspended.

Direct contact of wires and cables with hot, wet and oily surfaces or objects is not allowed.

The power tool cable must be protected from accidental mechanical damage and contact with hot, damp and oily surfaces.

It is not allowed to pull, twist and bend the cable, put a load on it, and also allow it to cross with cables, cables, gas welding hoses.

If any malfunctions are found, work with hand-held electric machines, portable power tools and lamps should be stopped immediately.

• 10.7. Hand-held electric machines, portable power tools and lamps, auxiliary equipment issued and used in work must be accounted for in the organization (structural unit), be checked and tested within the time limits and volumes established by GOST, technical specifications for products, the current volume and standards for testing electrical equipment and electrical devices.
• (in ed. Changes and additions, approved. Ministry of Labor of the Russian Federation 18.02.2003, Ministry of Energy of the Russian Federation 20.02.2003)

To maintain good condition, conduct periodic tests and checks of manual electric machines, portable power tools and lamps, auxiliary equipment, a responsible employee with group III must be appointed by order of the head of the organization.

• 10.8. In the event of a power failure or a break in work, power tools and hand-held electric machines must be disconnected from the electrical network.
• 10.9. Employees using power tools and hand-held electric machines are not allowed to:
  • transfer hand-held electric machines and power tools, even for a short time, to other employees;
  • disassemble hand-held electric machines and power tools, make any repairs;
  • hold on to the wire of an electric machine, power tool, touch rotating parts or remove chips, sawdust until the tool or machine comes to a complete stop;
  • install the working part in the chuck of the tool, machine and remove it from the chuck, as well as adjust the tool without disconnecting it from the mains;
  • (in ed. Changes and additions, approved. Ministry of Labor of the Russian Federation 18.02.2003, Ministry of Energy of the Russian Federation 20.02.2003)
  • work from ladders; to perform work at height, strong scaffolding or scaffolding should be arranged;
  • bring inside the drums of boilers, metal tanks, etc. portable transformers and frequency converters.
  • 10.10. When using an isolating transformer, the following must be observed:
  • only one electrical receiver is allowed to be fed from an isolation transformer;
  • grounding of the secondary winding of the isolating transformer is not allowed;
  • the transformer case, depending on the neutral mode of the supply network, must be grounded or zeroed. In this case, grounding of the housing of the power receiver connected to the isolating transformer is not required.

• The classes of power tools and hand-held electric machines according to the method of protection against electric shock are regulated by the current state standards.
• Categories of premises according to the degree of danger of electric shock to people are given in the current Electrical Installation Rules (PUE).