Electrical safety tests group 4 2017-2019

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As promised, I am making literature and files on the topic freely available.
• Tickets for an extraordinary electrical safety exam / File with tickets, which are given in the article. Attention! No answers provided. For the purpose of fruitful learning, print the file and transfer the answers from the article., pdf, 305.32 kB, downloaded: 21462 times./ • Tickets for the new POTEE / Another option for tickets for the extraordinary exam, pdf, 401.18 kB, downloaded: 15591 times./ • POTEE-2014 / Rules on labor protection during the operation of electrical installations. Because of which all decent electricians have to take an extraordinary additional exam)), pdf, 927.76 kB, downloaded: 7985 times./ • Comparison of old and new OT rules / Comparison of old and new OT rules.
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Posters on electrical safety can be downloaded here and here.

Industrial consumers group 4 up to 1000V general questions from 07/09/2021

Apply to EPT from 02/01/2021 (as amended from 07/09/2021)

Apply to EPT from 02/01/2021 (as amended from 07/09/2021 and October 2022)

The update was officially carried out in January 2022. It should be noted that the RTN website contains questions approved on 07/09/2021. These questions were also revised in October 2022 and posted on the EPT without official notification. Some questions from the update:

Who is responsible for drawing up annual plans (schedules) for the repair of main equipment of electrical installations?
For what types of repairs of major electrical installation equipment should annual plans (schedules) be drawn up?
When does it become necessary to conduct a technical inspection of electrical equipment?
What work must be carried out in the organization before the main equipment of electrical installations is taken out for repair?
During what time is the main equipment of electrical installations that has undergone a major overhaul subject to load testing?
How often should the electrical circuits of electrical installations be checked for compliance with actual operational ones?
Which of the following is not included in the set of documentation stored at the workplace of operational personnel?
How often should manufacturing instructions for operating electrical installations be reviewed?
What should be done if solid deposits from oil products more than 3 mm thick form on the gravel backfill of oil receivers of transformers?
How often do loads and transformer voltages be measured in electrical distribution networks with voltages up to 20 kV inclusive?
Who is obliged to organize training, knowledge testing, and instruction of personnel in accordance with the requirements of state standards, these Rules, labor safety rules and local instructions?
Where is the knowledge testing of Consumer employees whose numbers do not allow them to create their own commission?
How are the results of testing personnel knowledge on electrical safety documented?
How should emergency lighting luminaires differ from task lighting luminaires?
What knowledge testing is carried out on personnel upon appointment or transfer to another job if new duties require additional knowledge of rules and regulations?
How often should emergency lighting be inspected and tested?
When is an extraordinary personnel knowledge test carried out?
Which electrical safety group should the chairman of the commission for testing the knowledge of personnel of an organization with electrical installations up to 1000 V have?
Under what conditions is parallel operation of transformers allowed?
In what case should the fan motors on transformers with a cooling system turn on automatically?
When should transformers be inspected at transformer points without shutting them down?
In which of the following cases should the transformer be taken out of operation in an emergency?
Which of the provisions does not comply with the requirements of the Rules for the maintenance of switchgear premises?
In what case is the requirement of the Rules for the Technical Operation of Consumer Electrical Installations violated?
Who should clean switchgear rooms and clean electrical equipment?
Who approves the Consumer's schedule for periodic inspections of overhead lines?
When are extraordinary inspections of overhead power lines carried out?
What data should be indicated on cable tags at the beginning and end of the line?
How often should cable manholes be inspected for lines with voltages up to 35 kV?
Who should periodically conduct random inspections of cable lines?
Who should approve the List of responsible mechanisms involved in self-starting?
Which of the provisions does not correspond to the Rules for the technical operation of consumer electrical installations during the operation of electric motors?
Which of the following should operational personnel perform?
How are grounding conductors connected to the ground electrode and grounding structures?
What color should exposed grounding conductors be painted?
What is the frequency of inspections of grounding devices with selective opening of the soil?
How many overhead line supports with grounding devices are subject to selective soil excavation to inspect these grounding devices?
How is the size of the area of the grounding device subject to selective soil excavation determined?
In what case should the grounding element be replaced?
Is it possible to use the ground as a phase or neutral wire in electrical installations up to 1000 V?
When is the surge protection status of switchgears checked?
What kind of water should be used to top up batteries?
How often should periodic inspections of portable and mobile electrical appliances be carried out?
Who carries out repairs of portable electrical receivers?
What voltage should be used to power portable (hand-held) lamps used in hazardous areas?
How are premises classified in relation to the risk of electric shock to people?
Which premises are classified as premises with an increased risk of electric shock to people?
Which rooms, according to the PUE, are called damp?
Which rooms, according to the PUE, are considered wet?
Which rooms, according to the PUE, are called dry?
How should zero working (neutral) conductors in electrical installations be designated?
How are protective grounding conductors, as well as neutral protective conductors, designated in electrical installations with voltages up to 1 kV with a solidly grounded neutral?
What color should the three-phase current buses be marked with?
How are tires designated for single-phase alternating current?
How are DC buses designated?
What, according to the Electrical Installation Rules, is called an electrical energy receiver (electrical receiver)?
What, according to the Electrical Installation Rules, is called an electrical energy consumer?
What, according to the Electrical Installation Rules, is called the normal mode of an electrical energy consumer?
What, according to the Electrical Installation Rules, is called an independent power source?
On what basis, according to the Electrical Installation Rules, are categories of power receivers determined based on the reliability of power supply in the process of designing a power supply system?
Which category, according to the Rules for the Construction of Electrical Installations, include electrical receivers, the interruption of the power supply of which may entail a danger to human life, a threat to state security, significant material damage, disruption of a complex technological process, disruption of the functioning of particularly important elements of public utilities, communications and television facilities ?
Which category, according to the Electrical Installation Rules, includes electrical receivers, the uninterrupted operation of which is necessary for an accident-free shutdown of production in order to prevent a threat to human life, explosions and fires?
Which category, according to the Rules for the Construction of Electrical Installations, includes electrical receivers whose power supply interruption leads to a massive undersupply of products, massive downtime of workers, machinery and industrial transport, disruption of the normal activities of a significant number of urban and rural residents?
What is the minimum number of independent mutually redundant power sources, according to the Electrical Installation Rules, that should provide electricity to first category electrical receivers in normal modes, if an interruption in their power supply in the event of a power failure from one of the power sources can only be allowed for the duration of automatic power restoration?
What is the minimum number of independent, mutually redundant power sources, according to the Electrical Installation Rules, that should provide electricity to electrical receivers of a special group of the first category in normal modes, if an interruption in their power supply, in the event of a power failure from one of the power sources, can only be allowed for the time of automatic power restoration ?
What is the minimum number of power sources, according to the Electrical Installation Rules, that should provide electricity to third category power receivers in normal modes, provided that power supply interruptions necessary to repair or replace a damaged element of the power supply system do not exceed 1 day?
What is a TN system for electrical installations with voltages up to 1 kV?
What is the TN-C system for electrical installations with voltages up to 1 kV?
What is the TN-S system for electrical installations with voltages up to 1 kV?
What is the TN-CS system for electrical installations with voltages up to 1 kV?
What is an IT system for electrical installations with voltages up to 1 kV?
What is the TT system for electrical installations with voltages up to 1 kV?
What is the definition of the term "Protection against direct contact"?
What is the definition of the term “Indirect Touch Protection”?
What is the definition of the term "Grounding"?
What is the definition of the term "Artificial Grounding"?
What is the definition of the term "Natural Earther"?
What is the definition of the term "Grounding"?
What is the definition of the term "Protective Grounding"?
What is the definition of "Basic Insulation"?
What is the definition of the term "Double Insulation"?
What is the definition of the term "Reinforced Insulation"?
Are paint coatings insulating against electric shock?
What should be the resistance of the grounding device to which the terminals of the transformer source are connected, at a linear voltage of 380 V of a three-phase current source?
What can be used as natural grounding agents?
What is the minimum cross-section of a copper grounding conductor connecting the working (functional) grounding conductor to the main grounding bus in electrical installations with voltages up to 1 kV?
What can be used as PE conductors in electrical installations with voltages up to 1000 V?
What should be the minimum cross-section of separately laid protective aluminum conductors?
How should the connection of grounding and neutral protective conductors and potential equalization conductors be made to open conductive parts?
What can be used to protect against indirect contact in circuits powering portable electrical receivers?
What is not allowed, jointly, to be laid in steel and other mechanically strong pipes, hoses, boxes, trays and closed channels of building structures?
What must be ensured when laying wires and cables in pipes, blind boxes, flexible metal hoses and closed channels?
What should be taken into account when choosing the type of electrical wiring and the method of laying wires and cables?
What wires should be used if there are oils and emulsions in the places where they are laid?
Is combined laying of current conductors and process pipelines on common supports allowed?
At what distance should tags be placed on cables laid in cable structures?
When is it permissible to transfer cables from blocks to the ground without cable wells?
Is it allowed to have one output in a cable structure?
How should cable ducts and double floors in switchgears and rooms be covered?
What should be the distance in industrial premises between power cables laid in parallel and pipelines with flammable liquids?
What type of supports are installed in places where the route of an overhead power line changes direction?
What type of supports are installed on straight sections of overhead power lines?
Is it allowed to pass overhead lines through the territory of stadiums, educational and children's institutions?
What, according to the Electrical Installation Rules, is called a lighting supply network?
What, according to the Electrical Installation Rules, is called a distribution network?
What, according to the Electrical Installation Rules, is called a group network?
What conditions for the usual design of lamps, according to the Electrical Installation Rules, must be observed when using fluorescent lamps in lighting installations?
Lamps of what protection class, according to the Electrical Installation Rules, must be used (with the exception of lamps serviced from cranes) in high-risk and especially dangerous rooms when the installation height of general lighting lamps above the floor or service area is less than 2.5 m, provided that Is the circuit not protected by a residual current device?
Lamps of what minimum protection class, according to the Electrical Installation Rules, are allowed to be used (with the exception of lamps serviced from cranes) in high-risk and especially dangerous rooms when the installation height of general lighting lamps above the floor or service area is less than 2.5 m, provided that Is the circuit protected by a residual current device?
What voltage, according to the Electrical Installation Rules, should be used to power portable lamps in high-risk areas and especially hazardous areas?
What types, according to the Electrical Installation Rules, are emergency lighting divided into?
What, according to the Electrical Installation Rules, is safety lighting intended for?
What, according to the Electrical Installation Rules, can be used to power groups of luminaires instead of group panels when using busbars as lines of the lighting supply network?
At what maximum height above the floor level, according to the Electrical Installation Rules, should luminaires serviced from stepladders or ladders be installed?
At what height, as a rule, should plug sockets with a rated current of up to 16 A and voltage of up to 250 V be installed in industrial premises?
Is it allowed, according to the Electrical Installation Rules, to build built-in or attached substations in dormitory buildings of various institutions, in schools and other educational institutions?
In what cases, according to the Electrical Installation Rules, is it allowed to place built-in and attached substations using dry-type transformers in residential buildings if the sanitary requirements for limiting noise and vibration levels are fully met in accordance with current standards?
What is the minimum distance, according to the Electrical Installation Rules, from the installation site of the VU, ASU, main switchboard to the pipelines (water supply, heating, sewerage, internal drains)?
What, according to the Electrical Installation Rules, should be the cross-section of PE conductors that are not part of the cable?
What is used when connecting a portable or mobile electric welding unit directly to a stationary electrical network?
What should be the length of the flexible cable connecting the welding power source and the switching device?
At what voltage should cabinets of complete devices and housings of welding equipment (machines), having non-insulated current-carrying parts, be equipped with a lock that ensures that when opening doors (doors), devices located inside the cabinet (housing) are disconnected from the electrical network?
Provide a correct list of comprehensive first aid measures. (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
Provide a comprehensive list of first aid measures. (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
Indicate the sequence of actions to restore airway patency and determine signs of life in the victim. (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
List of conditions for which first aid is not provided in accordance with Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n?
List the measures to perform cardiopulmonary resuscitation until signs of life appear. (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
What actions are taken to maintain airway patency? (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
List the measures for a general examination of the victim and temporary stopping of external bleeding. (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
What actions of the person providing assistance do not relate to measures for a detailed examination of the victim in order to identify signs of injuries, poisoning and other conditions that threaten his life and health, and to provide first aid in the event of detection of these conditions: (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n )?
At what stage are emergency medical services and other special services called, whose employees are required to provide first aid in accordance with federal law or a special rule? (Order of the Ministry of Health of Russia dated May 4, 2012 No. 477n).
Which of the listed insulating electrical protective equipment are the main insulating electrical protective equipment for electrical installations with voltages up to 1000 V?
Which of the listed insulating electrical protective equipment refers to additional insulating electrical protective equipment for electrical installations with voltages up to 1000 V?
What should be done if protective equipment is found to be unsuitable?
Is it permissible to use expired protective equipment?
Which of the listed electrical protective equipment and personal protective equipment are not numbered for accounting when putting them into operation?
How often should the presence and condition of protective equipment be checked by the employee responsible for their condition, recording the inspection results in a journal?
How can a worker determine during direct use that electrical protective equipment has passed performance tests and is suitable for use?
How should protective equipment that fails the test be marked?
What voltage value should be used to test basic insulating electrical protective equipment intended for electrical installations with voltages above 1 to 35 kV inclusive?
What should, as a rule, be the duration of application of the full test voltage for insulating protective equipment made of laminated dielectrics?
What training must employees undergo in order to obtain permission to work on site?
With what number of people present on the floor of a building at one time, should evacuation plans be posted in visible places?
In what case, in addition to the evacuation plan, should instructions be developed that determine the actions of personnel to evacuate people?
How often should practical training on evacuation of people in case of fire be conducted at facilities with large numbers of people?
Where should used oily cleaning materials go?
What electrical installations and electrical devices must be switched off at the end of working hours?
How often should fire hoses be rerolled?
How often should the head of the organization ensure that the functionality of the facility’s fire protection systems and means is checked?
Under what conditions is it permissible to use the water reserve intended for fire extinguishing needs?
How often is the functionality of fire warning systems checked?
Indicate the time frame for testing the knowledge of newly appointed employees belonging to the category of administrative and technical personnel or support personnel?
What factors determine the need and duration of each stage of training for a new position of operational personnel?
What determines the amount of knowledge to be tested for each position by the requirements of the “Rules for working with personnel in electric power industry organizations of the Russian Federation”?
In what cases is an extraordinary knowledge test carried out?
To conduct a knowledge test, the head of the organization must appoint a permanent commission of the organization consisting of at least:
How long does it take for a person who receives an unsatisfactory assessment on a knowledge test to be retested?
What is the procedure for allowing newly hired employees or those who have had a break in work for more than 6 months to work independently?
How often should each employee from among the dispatch, operational and operational maintenance personnel be tested in fire control training?
What actions should be taken in relation to employees who receive an unsatisfactory assessment of their actions during training (emergency or fire)?

Operation of electrical installations of electrical facilities with electrical installations above 10,000 V

EB 1342.2. Testing the knowledge of technical managers, chief engineers, chief power engineers (power engineers), those responsible for electrical facilities (deputies responsible for electrical facilities) of organizations operating electrical installations
EB 1343.2. Testing the knowledge of technical managers, chief engineers, chief power engineers (power engineers), those responsible for electrical facilities (deputies responsible for electrical facilities) of organizations operating electrical installations

Frequency of certification and composition of the commission

Electrical safety knowledge testing for group 4 is carried out several times during the work of electrical network personnel. Therefore, it is divided into the following types:

primary - at the beginning of work at a new enterprise;
periodic - within certain periods established by the rules;
extraordinary - due to accidents, promotion, or the appearance of new legislative documents.

Order of the Ministry of Labor No. 328n regulates the timing of the periodic examination for group 4 in electrical safety up to 1000 V. It looks like this:

technical personnel, fitters servicing electrical installations - once a year;
labor safety inspector, engineer - once every 3 years.

Certification at the Rostechnadzor branch is carried out in the form of testing. If electricians are trained in a special educational institution, then they can pass certification there. Then a representative of Rostechnadzor must be present on the commission.

In the case of certification of electricians and power engineers at an enterprise with more than 50 workers, a committee of examiners of five people is appointed by order of the institution.

The composition of the expert commission for the examination for group 4 electrical safety clearance up to 1000 volts is determined by the level of the test subject. The obligatory members of this commission are a safety engineer, a representative of Rostechnadzor, and the chairman is the chief power engineer of the enterprise.

Differences between electrical safety groups

The Rules for the Technical Operation of Consumer Electrical Installations and the Safety Rules require 5 categories of electrical safety qualifications for employees in the electrification field. Main characteristics of each group:

Assigned to persons who are not in direct contact with electrical installations (technical personnel, loaders). These persons must be aware of the dangers of electric shock. You can get the first group after completing the instructions.
Provides for the work of personnel in electrical installations with voltages up to 1000 V. To obtain group II in electrical safety, it is necessary to be certified at a branch of Rostechnadzor or at an enterprise before a specially created commission. The person being examined may not have the appropriate education, but then she is required to undergo training lasting at least 72 hours on the topic “Norms and rules for working in electrical installations.” If an employee has a specialized technical education, then he must work for 2-3 months before passing the exam. Persons who have received a certificate of assignment of this access group do not have the right to independently connect electrical devices. Their operation and maintenance should only be carried out under the supervision of qualified persons. Assigned primarily to young specialists, as well as elevator operators and welders.
Allows electrical personnel to independently work in networks with voltages up to 1000 volts. Operation at higher voltages is permitted if the certificate contains a permission entry “up to and above 1000 V.” Certification is carried out at the Rostechnadzor branch or directly at the company before a specially created commission. Persons who have a higher electrical engineering education and have worked for at least a month with group 2 are admitted to it. Graduates of vocational schools - only after working for at least six months. Persons with group 3 are allowed not only to operate electrical devices, but also to issue permits for their maintenance to persons with less qualifications.
You can obtain group IV in electrical safety with a higher electrical engineering education after 2 months of work; without education - after 6 months of working with group 3. You can undergo certification at the Rostechnadzor department or at the enterprise under certain conditions.
Is the maximum in this category. Therefore, a person who has the fifth electrical safety clearance group has the right to perform any operations with electrical installations and mechanisms, and can also be appointed to a leadership position in the electrical sector. You can pass the exam for this category only after 3 months of work with the appropriate education, and without it - after two years of work with the 4th group.

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Lineman electrician (profession). Test with answers (2021) - option 1

contents .. 1 2 ..

Question No. 1

Which group does the “Do not include” poster belong to? People are working." — Prohibiting (+)

— Warning — Indicative
Question No. 2
What is the protection zone from the outermost wires on a 35 kV overhead line. – 10 meters – 15 meters (+)

— 20 meters
Question No. 3
Which group does the “Don’t get in.” poster belong to? He will kill." — Index — Warning (+)

— Prohibiting
Question No. 4
Specify the frequency of inspection without shutting down capacitor units with voltages above 1000 V. — According to local instructions — According to local instructions but at least once a month (+)

- 1 according to local instructions once a year - 1 according to local instructions once every 6 months - 1 according to local instructions once every 3 months
Question No. 5
What determines the value of the ground electrode resistance. — From the type, location and number of elements and electrodes, soil resistivity (+)

— On the resistivity of the soil and the size of the ground electrodes — The number and relative position of the electrodes — On the type, number of elements and electrodes, the resistivity of the soil
Question No. 6
What do the numbers mean in the grades of steel-aluminum wire AC 300/39 AC 70/72 AC 95/141? — Wire cross-section and number of cores in the wire — Cross-section of the aluminum part and cross-section of the steel part of the wire (+)

— The number of cores and the cross-section of the wire — The cross-section of the aluminum part and the total cross-section of the wire — The cross-section of the steel part and the cross-section of the aluminum part of the wire
Question No. 7
What is the minimum distance you can approach an overhead line wire that has fallen from a support? — 4m — 6m — 8m (+)

— 7m
Question No. 8
Should the bodies of lifting machines be grounded? — Must — Must, with the exception of tracked vehicles (+)

— Must, with the exception of special equipment — Should not
Question No. 9
Who approves calendar schedules and organizes preventive tests of electrical equipment and equipment, electrical installations and networks managed by the organization. — Head of the enterprise — Person responsible for the electrical equipment of the enterprise (+)

— Chief engineer
Question No. 10
The territory where outdoor installations are located in relation to electric shock to people are classified as: — Particularly dangerous (+)

- Very dangerous - Non-hazardous - With increased danger - Dangerous
Question No. 11
Name the main personal protective equipment for an electrician - lineman - Cotton suit, mittens, signal flags, first aid kit, boots - Special mittens, signal flags, cotton suit, construction helmet, first aid kit (+)

— Boots, cotton suit, mittens, first aid kit — Cotton suit, construction helmet, special mittens, signal flags, first aid kit, boots
Question No. 12
What is the maximum load that a lineman’s claw is tested with for lifting to a support during operational tests. — 150 kg — 125 kg — 135 kg (+)

- 225 kg - 300 kg
Question No. 13
What can be said about the currents flowing in parallel-connected resistors. — Equal to each other — Inversely proportional to resistance (+)

— Directly proportional to the resistances — Directly proportional to the voltages across the resistors — Inversely proportional to the voltages across the resistors
Question No. 14
Correctly indicate the dependence of the resistance of the material, the resistance of the conductor. Can be determined by the formula: - R=pL/S (+)

— R=pLS — R=LS/p
Question No. 15
Where is grounding installed when working on an overhead line in the span of intersection with another overhead line — On the crossed overhead line — On the support where the work is being done, on the initial anchor and final support (+)

— On both overhead lines
Question No. 16
Indicate the validity period of the work order for electrical installations. — One day — 30 days — 15 days (+)

- 10 days - 5 days - 20 days
Question No. 17
Specify a complete list of basic protective equipment for installations up to 1000 V. - Insulating rods, clamp meters, voltage indicators, dielectric gloves, tools with insulated handles (+)

— Clamp gauges, voltage indicators, dielectric gloves, galoshes, tools with insulated handles — Clamp gauges, voltage gauges, dielectric gloves, tools with insulated handles
Question No. 18
What phenomenon is the operation of a transformer based on? — On the phenomenon of mutual induction (+)

— Based on the phenomenon of magnetic induction — Based on the phenomenon of self-induction
Question No. 19
Purpose of grounding. — Reducing touch and step voltage to safe values (+)

— Protection of electrical equipment — Trigger maximum protection — Reduce touch and step voltage to a level not exceeding permissible values
Question No. 20
How voltage is tested for electrical devices (switches, disconnectors, etc.) 6 kV with porcelain insulation. – 65 kV – 32 kV (+)

— 42 kV
Question No. 21
How is the overall span determined? — Normalized vertical dimension from wires to ground when installing supports on level ground (+)

— The mass of the wires, which is perceived by the support — The pressure of the mass of ice, the wind load perceived by the support
Question No. 22
Indicate the minimum cross-section of the conductor between the platform and the overhead line. — Not less than 10 mm2 (+)

— Not less than 16 mm2 — Not less than 25 mm2
Question No. 23
What is used to check the absence of voltage in electrical installations up to 1000 volts. — Measuring instruments — Voltage indicators (+)

— Indicator lamps
Question No. 24
Specify the frequency of electrical tests of dielectric carpets during operation — once every 6 months — Not carried out (+)

— once every 12 months
Question No. 25
Which category includes electricity consumers whose power supply interruption is allowed during automatic power restoration? — II category — IIа category — IIIа category — I category (+)

- Category III
Question No. 26
Techniques for freeing a victim from the action of electric current on an overhead line with a voltage above 1000 V. - Disconnect the line, providing for the possibility of a fall. Ground the wire and perform a surge, ground the fallen wire, remove it from the danger zone - Turn off the overhead line, separate the victim from the action of electric current using basic and additional protective equipment, remove it from the danger zone (+)

— Separate from the action of electric current, using basic and additional protective equipment, throw on the line
Question No. 27
Which of the following must be done at the end of the working day in electrical installations without permanent operating personnel. - Put the workplace in order, leave the posters, grounding and fencing in place, the work manager must sign the work order and keep it until the next working day - Put the work place in order, leave the posters, grounding and fencing in place, in the work order sign the work manager and leave it in the folder of existing work orders (+)

— The work place should be put in order, posters, grounding and fencing should be left in place, the work manager must sign the work order and hand it over to the person who issued the work order Question
No. 28
What rule determines the direction of the force acting on a current-carrying conductor in a magnetic field. — Right hand rule — Left hand rule (+)

— Rule of the screw
Question No. 29
What electrical protective equipment is basic in electrical installations up to 1000 V, and additional in electrical installations above 1000 V? — Dielectric gloves (+)

— Dielectric boots — Insulating rods
Question No. 30
How are they divided according to the level of supply voltage, based on electrical safety conditions — 35 kV and above 35 kV — Up to 1 kV and above 1 kV (+)

— 12 V and 42 V
Question No. 31
What does Lenz’s rule say? — In the conductors of an electrical circuit, when the magnetic field changes, an emf is generated (induced) — The induced emf is always directed so as to create a current that counteracts the passing changes (+)

— The induced EMF is always directed so as to create a current that counteracts the EMF — In the conductors of an electrical circuit, when the direction of the current changes, an EMF arises (induced)
Question No. 32
Indicate the frequency of medical examination of electrical personnel servicing existing electrical installations. — When hiring and then periodically within the time frame established by the management of the enterprise — When hiring and then periodically within the time frame established by the health authorities (+)

— When hired and then once every 3 years — When hired and then periodically within the time limits established by the energy supervision authorities
Question No. 33
Methods for fastening wires to pin insulators? — Wire tied, clamp — Double fastening, special clamp, clamp, wire tied (+)

— Special clamp, clamp — Wire knitted, special clamp, clamp — Double fastened, special clamp, wire knitted
Question No. 34
Which group does the “WORK HERE” poster belong to — Indexical — Prescriptive (+)

— Warning
Question No. 35
In what units is illumination expressed — Candela — Lux (+)

— Lumen — Lux/meter2
Question No. 36
Which personnel are allowed to work with class 1 power tools in premises with an increased risk of electric shock and outdoors. — With a group of at least 3 — With a group of at least 2 (+)

— With group 1
Question No. 37
What voltage is tested for a 6 kV power cable with rubber insulation. — 6U nom. — 3 U nom — 2 U nom (+)

— 1.5 U nom — 2.5 U nom
Question No. 38
Which electrical installations are subject to the operating rules for consumer electrical installations. — For electrical installations up to 35 kV inclusive — For all electrical installations — For electrical installations up to 220 kV inclusive (+)

— For electrical installations up to 500 kV inclusive
Question No. 39
What devices are used to protect lines up to 10 kV from damage due to lightning strikes? — Grounding devices, arresters — Spark gaps, grounding devices, arresters (+)

— Lightning protection cables, lightning rods, tubular arresters
Question No. 40
Which of the following must be done at the end of the working day in electrical installations without permanent operating personnel. — Put the workplace in order, the foreman must sign the work order and hand it over to the person who issued the work order — Put the work place in order, leave posters, groundings and fences in place, the work manager must sign the work order and leave it in the folder of existing work orders ( +)

— Put the workplace in order, leave posters, grounding and fences in place, the work manager must sign the work order and keep it until the next working day
Question No. 41
The permissible minimum distance from the overhead line wire - 10 kV to the road surface and with solid covered – 6m – 8m – 7m (+)

— 5 m — 9 m
Question No. 42
Indicate the frequency of medical examination of electrical personnel servicing existing electrical installations. — When hiring and then periodically within the time frame established by the management of the enterprise — When hiring and then periodically within the time frame established by the health authorities (+)

— Upon hiring and then once every 2 years
Question No. 43
In what cases is it permissible to straighten supports with voltage 0.4: 10 kV — When special instructions are drawn up — According to instructions drawn up in accordance with the safety regulations and approved by the person responsible for the electrical economy (+)

— In accordance with safety regulations for the operation of consumer electrical installations — According to instructions drawn up in accordance with the PUE and approved by the person responsible for the electrical economy
Question No. 44
What voltage are electrical devices tested (power switches, load switches, disconnectors, etc.) 6 kV with porcelain insulation. – 42 kV – 65 kV – 32 kV (+)

- 15 kV - 20 kV
Question No. 45
What is the ratio of artificial respiration and chest compressions - 1:5 (+)

— 1:1 — 5:1
Question No. 46
In what case is it permissible to use test lamps to check the absence of voltage? — Allowed to be used at line voltages up to 220 V — Not allowed to be used (+)

- Allowed to be used at phase voltages up to 220 V
Question No. 47
Name the types of overhead line supports. — Intermediate, anchor, corner, branch, anchor-transition, corner — Anchor-transition, corner, intermediate, anchor, anchor-end, special, transposition (+)

- Intermediate, cross, anchor-corner, anchor-end, transition, transposition, special - Intermediate, anchor, anchor-end, special, tension, anchor-transition, corner
Question No. 48
What should be the resistance of the grounding device for installations with a voltage of 380 V with solidly grounded neutral. — No more than 2 Ohms — 4 Ohms or less (+)

— Up to 8 Ohms — No more than 4 Ohms — No more than 8 Ohms — 2 Ohms or less
Question No. 49
How to write down the brand of cable with copper conductors, rubber insulation, and PVC sheath. — V.V.G — V.R.G (+)

— P.V.G — V.B.G — P.G.V
Question No. 50
The principle of operation of a DC motor. — Based on the phenomenon of electromagnetic induction — Based on the phenomenon of a conductor with current in a magnetic field (+)

— Based on the phenomenon of self-induction — Based on the phenomenon of a conductor in a magnetic field — Based on the phenomenon of mutual induction
Question No. 51
Indicate the frequency of electrical tests of dielectric carpets during operation. — 1 time a year with a voltage of 6 kV — 1 time every 12 months — Not carried out (+)

— once every 3 months with a voltage of 6 kV
Question No. 52
What are the requirements for the neutral wire. — Conductivity must be at least 50% of the phase wire, without switching equipment. It is laid without the possibility of a break, without fuses, and is grounded repeatedly (+)

— It is laid with the exception of the possibility of breakage, with a conductivity of at least 50% of the phase wire — Switching devices are installed in the neutral wire and eliminated — The conductivity must be at least 50% of the phase wire.
It is laid with the exception of the possibility of a break, without fuses, and is repeatedly grounded Question No. 53
Which of the listed groups of electrical protective equipment include dielectric gloves used in electrical installations with voltages above 1000 V? — Additional protective equipment (+)

— Basic protective equipment — Collective protective equipment
Question No. 54
Name the brands of steel-aluminum bare wires. — AS, ASO, ASU, ASKS, ASK, ASKP (+)

- AS, ASO, PS, AO, ASU, X, ASUS - AS, ATP, AT, AN, AZh
Question No. 55
How is the overall span determined - Normalized vertical clearance from wires to the ground when installing supports on level ground (+)

— The mass of the wire, which is perceived by the support — The pressure of the mass of ice, the wind load, the perceived support — The rated vertical dimension from the wire to the top of the support when installing supports on flat terrain
Question No. 56
What work is classified as steeplejack work. — At a height of more than 5 meters (+)

— At a height of more than 3 meters — At a height of more than 10 meters
Question No. 57
How is reinforced concrete poles of type SV slinged during installation? — Hook two twisted slings into the loops — Using a ring sling onto the noose, passing the reinforced concrete posts through the loop (+)

— Using a ring sling on a noose — Using a ring sling on a noose, hook two twisted slings to the loops
Question No. 58
What voltage is tested for electrical devices (switches, disconnectors, etc.) 6 kV with porcelain insulation. – 65 kV – 32 kV (+)

- 15 kV - 24 kV
Question No. 59
What groups are insulating protective equipment divided into - Additional and basic (+)

— Auxiliary and additional — Protective means for electrical installations up to and above 1000 V — Basic and auxiliary — Additional and protective — Basic and protective
Question No. 60
What determines the defectiveness coefficient of wire connections. — The ratio of the resistance of the wire at the junction to the resistance of the same length of a section of the whole wire — The ratio of the cross-section of the wire at the junction to the cross-section of the whole section of the wire — The ratio of the length of the wire at the junction to the length of the whole section of wire (+)

— The ratio of the length of an entire section of wire to the length of the wire at the junction
Question No. 61
How are settings determined by the level of supply voltage based on electrical safety conditions. — Up to and above 1 kV (+)

— With an insulated and solidly grounded neutral — Dangerous, especially dangerous, with increased danger
Question No. 62
To what height is a team member with qualification group III allowed to climb onto an overhead line support — Up to the top of the support for all work (+)

— To the top of the support with stress relief — Not higher than to the level of the bottom wire
Question No. 63
Which group does the “Stand.Voltage” poster belong to? — Prohibiting — Indicative — Warning

(+)
Question No. 64
Name the brands of steel-aluminum bare wires - ASO, ASU, ASUS, AS, PS, AO - ASO, ASKS, ASK, ASKP, AS, ASU (+)

- AS, ATP, AT, AN, AZH - ASU, ASUS, AS, PS, AO
Question No. 65
Name the methods for connecting grade A wire. - Die, pressed, twisted oval joints, thermite welding (+)

— Bolted, die, pressed electric welded, twisted — Bolted, pressed or twisted by oval joints, gas welding
Question No. 66
Checking the strength of supports against rotting with digging to a depth of at least: — Not less than 10 mm2 — Not less than 0.5 m (+) — Not less than 25 mm2

Question No. 67

In what cases is a responsible work manager appointed? - When working according to a work order - Determines the issuing work order (+)

— In electrical installations above 1 kV
Question No. 68
How is the serviceability of the voltage indicator determined when determining the absence of voltage in an electrical installation. — The expiration date indicated on the voltage indicator — Visual inspection — Checking the operation when approaching live parts that are energized (+)

— The integrity of the sign surface, the presence of special symbols
Question No. 69
How many repair connections are allowed on one span — No more than two (+) — No more than one — No more than three

Question No. 70

Which electrical installations should be grounded or neutralized in premises without an increased risk of electric shock. — For voltages of 220 V and above AC and 110 V and above DC — For voltages of 380 V and above AC and 440 V and above DC (+)

— For voltages of 380 V and above AC and 220 V and above DC
Question No. 71
Is the minimum permissible distance between the wires of a 1 kV overhead line and a 10 kV overhead line when suspended on a common support? — 2.5m (+)

— 2m — 1.5m — 1m
Question No. 72
Which group does the “Do not include” poster belong to? People are working." — Prohibiting (+)

— Warning — Indicative
Question No. 73
Disabling disconnectors by hand should be performed: — Slowly and carefully, when an arc appears, turn on the disconnector — Quickly and decisively, when an arc appears, continue to retract the knives (+)

— Slowly and carefully, when an arc appears, continue to withdraw the knives
Question No. 74
The principle of operation of a direct current generator. — The operation of the generator is based on the phenomenon of a conductor with current in a magnetic field — The operation of the generator is based on the use of the phenomenon of electromagnetic induction (+)

— The operation of the generator is based on the phenomenon of mutual induction
Question No. 75
What determines the frequency of the generated alternating current. — From the angular speed and efficiency of the generator — From the number of pairs of poles and the voltage value — From the number of pairs of poles and the number of pairs of revolutions of the generator (+)

— From the number of revolutions and the number of pairs of poles of the motor — From the angular speed and the number of pairs of poles — From the number of pairs of poles of the generator
Question No. 76
What number of persons, from what personnel and with what electrical safety groups in electrical installations up to 1000 V are allowed to perform all operations on applying and removal of portable grounding connections. Please indicate any special requirements. — One person from the operational staff with a group not lower than 4. The application must be carried out from the ground using an insulating rod - One person from the operating personnel with a group of at least 3. There are no special requirements (+)

— One person from the operational or operational-repair personnel with a group not lower than 3. The application must be performed from the ground with an insulating rod
Question No. 77
Kirchhoff’s second law states: — In a closed electrical circuit, the sum of the emf is equal to the sum of the voltage drop across the elements (+)

- In a closed electrical circuit, the sum of the currents in the node is equal to zero - The power of the current source must be equal to the power of the consumer - In a closed electrical circuit, the EMF difference is equal to the sum of the voltage drop across the elements
Question No. 78
What posters should be hung on temporary fences in electrical installations - “Stop. Voltage!" (+)

- “Don’t get in, it’ll kill you” - “People are working not to open it!”
Question No. 79
The following installations are considered operational: - Installations or areas that are fully or partially energized, or to which voltage can be applied at any time (+)

— Which are fully or partially energized — Which are energized at the moment — Installations or areas that may be fully or partially energized, or to which voltage may be applied at any time
Question No. 80
Portable grounding can be installed on overhead lines: — Work foreman and one team member with group 3 (+)

— Work foreman and two team members with group 3 — One team member with group 4 — One team member with group 3 and one team member with group 5
Question No. 81
Indicate the validity period for work in consumer electrical installations. — One day — 30 days — 15 days (+)

— 10 days — 5 days — 20 days
Question No. 82
Specify the lowest permissible breakdown voltage of transformer oil for transformers with a voltage of 35 kV. — Not less than 25 kV — Not less than 35 kV (+)

— Not less than 20 kV — Not less than 42 kV — Not less than 65 kV
Question No. 83
Which electrical personnel is exempt from medical examination by order of the enterprise. — Administrative and technical personnel who do not directly participate in operational, repair, adjustment work in electrical installations and do not organize them (+)

— Electrical technical personnel with more than 10 years of experience — Personnel.
Performing auxiliary work in existing electrical installations Question No. 84
What is the distance from the outermost wires that determines the security zone of a 10 kV overhead line. — 15 m from the outermost wires — 10 m from the outermost wires (+)

- 5 m from the outermost wires in both directions
Question No. 85
What can be said about the ratio of currents in parallel branches if the network voltage doubles. — Does not change (+)

— Increases by two — Decreases by two
Question No. 86
What is the maximum period of validity of an order for work on electrical installations. — At the discretion of the person issuing the order — Within one business day (+)

— Within one day
Question No. 87
Which group of posters does the “Do not turn on” poster belong to? Work on the line" - To the directional posters - To the prohibitory posters (+)

- To warning posters and signs
Question No. 88
Name the correct answer about sources of electric current - direct current: - Generator, galvanic cell, thermogenerator (+)

— Synchronous generator, battery, thermostat — thermal power plant, hydroelectric power station, nuclear power plant
Question No. 89
In what ratio are artificial respiration and direct cardiac massage performed? — 1:1 — 1:5 (+)

— 5:1
Question No. 90
In 35 kV electrical installations, it is prohibited for people to approach live parts that are energized at a distance of less than: — 0.6 m (+)

- 0.5m - 0.7m - 0.8m
Question No. 91
What responsibilities of those responsible for the safety of work in electrical installations can be combined by one person. — Permitting, responsible manager, issuing work order — Work performer, responsible manager, issuing work order (+)

- Responsible manager, permitting, work performer - Issuing order, responsible manager
Question No. 92
What is “Power factor”. — Ratio of apparent power to active — Ratio of reactive power to apparent — Ratio of active to apparent power (+)

— Ratio of active power to reactive power
Question No. 93
The highest permissible resistance of the grounding device of the reinforced concrete support on which the disconnector is mounted — 20 Ohm — 30 Ohm (+) — 10 Ohm

Question No. 94

Name the brands pressed or mounted by twisting oval connectors - SAS, SOAS (+)

- NGAS, RAS, NS - NBN, NKK, PTN - SUS, SUOS - SAO, SOS
Question No. 95
The operating principle of a direct current generator. — Based on the phenomenon of a conductor with current in a magnetic field — Based on the phenomenon of electromagnetic induction (+)

— Based on the phenomenon of self-induction
Question No. 96
How is the term “Overhead Line ROUTE” defined — Supports of various types on which the wire is hung — A device for transmitting and distributing electrical energy — A strip of land on which the line is built (+)

— A strip of land along which the line is built — A strip of land above which the line is built
Question No. 97
During a two-phase repair of an overhead line where the wire is grounded. — In RU — At the workplace (+)

— In switchgear and in the workplace — Not grounded
Question No. 98
Joule-Lenz law: — P=UI cos — Q =R t I*I (+)

— R= p I/S — Q = I*JR t — Q = I/JR t
Question No. 99
Kirchhoff’s first law. — The algebraic sum of currents for any point in the circuit is zero (+)

— The current in a section of an electrical circuit is directly proportional to the voltage at the ends of this section and inversely proportional to the resistance — In a closed circuit, the sum of the emf is equal to the sum of the voltage drop across the individual resistances — The algebraic sum of the emf for any point in the circuit is zero
Question No. 100
Joule–Lenz law — Q= J Rt — R=pL/S — Q=JJ Rt (+)

— Q=JJ/Rt — Q=JI Rt

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Recommendations for preparing for the exam

Testing knowledge on electrical safety can be carried out in the form of oral answers to questions or through testing. The subject must be informed in advance about the type of examination.

It is advisable to familiarize yourself with examination tickets for electrical safety for group 4 directly on the Rostechnadzor website. If the person being certified wants to receive a certificate marked “up to 1000 v”, you need to know the answers to 1794 questions, and “up to 1000 v and above” - to 2109.

For self-study on electrical safety for group 4, you can use the Olympox or Testsmart test programs. They consist of 7 sections studying:

construction of electrical installations;
operating and maintenance instructions;
use of protective equipment;
design of lightning protection equipment;
basic safety rules at work;
fire safety;
first aid measures in case of accidents.

The convenience of these computer programs is that they contain electrical safety tickets for the 4th admission group with answers. Therefore, you can prepare for the exam yourself, which will allow you to pass it as quickly and without problems as possible.

If a specialist wants to receive a certificate marked “up to 1000 in and above,” it is necessary not only to memorize the test answers, but also to thoroughly understand all the issues that cause difficulties. Answers on electrical safety for group 4 can be found in the relevant literature, the main one of which is:

Rules for the technical operation of power plants and networks of the Russian Federation.
Instructions for the use and testing of protective equipment used in electrical installations (IPISZ).
Safety rules for operating electrical installations.

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