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EB 122.4. Preparing for the delivery of the third group of electrical safety

I continue to publish materials on the category of electrical safety. This article is a continuation of my previous post , where the surrender to group II was considered.
As it turned out, the materials for the surrender of group III are slightly supplemented materials for the surrender of group II. All admission groups are based on the same regulatory documents, questions and manuals. In order not to duplicate information, in this article I cite only what is necessary for putting on group III, and what was not in the previous article. Under a cat regulatory documents, it is a little about preparation and questions with the correct answers. To prepare for surrender to group III, you need to familiarize yourself not only with this article, but also with the previous one. You need to take it as an addition. Ducks are present, but few.


Regulations


Let's look at the legal framework. Dates of issue of orders - in fact, those dates when the documents were last changed.
Quote all
Interindustry rules on labor protection (safety rules) in the operation of electrical installations POT R M-016-2001 RD 153-34.0-03.150-00
Agreed: Gosenergonadzor, Ministry of Energy of Russia, December 22, 2000.
The rules come into effect on July 1, 2001. Approved by the Resolution of the Ministry of Labor and Social Development of the Russian Federation
of January 5, 2001, N 3. Approved by Order of the Ministry of Energy of the Russian Federation of December 27, 2000, N 163.

Order of the Ministry of Energy of the Russian Federation of January 13, 2003 N 6 “On approval of the Rules for the technical operation of electrical installations of consumers”
APPROVED by the Ministry of Energy of Russia N 6 of January 13, 2003. REGISTERED by the Russian Ministry of Justice N 4145 of January 22, 2003.

Electrical installation rules (as amended on 06/20/2003)
Approved by the order of the Ministry of Energy of the Russian Federation of July 8, 2002, No. 204. Entered into force on January 1, 2003. Prepared by VNIIE.
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Instructions for installation of lightning protection of buildings, structures and industrial communications WITH 153-34.21.122-2003
Approved by Order of the Ministry of Energy of Russia of June 30, 2003, N 280

Instructions for use and testing of protective equipment used in electrical installations [CO 153-34.03.603-2003 (RD 34.03.603)]
APPROVED by order of the Ministry of Energy of Russia dated June 30, 2003 N 26

Interindustry instructions for first aid in case of accidents at work
The instruction was developed according to the technical task of the Department of Labor Conditions and Labor Protection of the Ministry of Labor and Social Development of the Russian Federation. The instruction was approved by the Department of Research and Educational Medical Institutions of the Ministry of Health of the Russian Federation and recommended for training persons who do not have medical education, but are obliged to be able to provide first emergency medical assistance (letter N 16-16 / 68 dated June 28, 1999).



Obviously, they are supplemented or revised extremely rarely.

How to prepare, the process of putting


At enterprises where the Labor Code of the Russian Federation is observed, personnel working with various electrical installations (computer in particular) will have to take the group, at least II.
I'm getting ready on the system
Anti-advertising. I do not blame anyone, but ...
OLIMPOX
The process of preparation is reduced to the resolution of exam questions. If the answer is incorrect, the reference to the explanation leads straight to the huge regulatory documents (listed in the previous paragraph, there is no navigation, of course, no references; neither are there any brief references). At enterprises, such systems are needed (are they needed?) To automate the delivery and accounting of “passed / not passed”. Given the above, and its cost for large companies - in my humble opinion, the system is useless. Documents and free can be read.
Delivery takes place in two stages - testing on any system (even on the on-line service, there are free, recently found paid), or in writing, and an oral conversation with the engineer on TB. The conversation is not always held.

The problem of studying for a group is that there are several huge documents that are required to learn (and it is convenient to sleep only for them), and a formal approach to passing. Testing does not cover everything you need to know, does not structure knowledge. In addition, the employer is sometimes interested in having the employee start work as soon as possible, and the EB team is required for the employee to be allowed to do this work.
The real benefits of this approach are few.



Questions ticket with the correct answers. Split on 7 themes in spoilers


There were 151 questions for the surrender of group II 113, and 151 for the surrender of group III. Many questions (but not all) from group II moved to the surrender of group III. Many new ones have been added. As before, the questions are harsh, similar to the EGE, but occasionally there is useful information.

Topic 1. General information about electrical installations
  1. What electrical installation is considered valid?
    Electrical installation or its part, which is under voltage, or to which voltage can be supplied by switching on switching devices
  2. How are zero working (neutral) conductors?
    Denoted by the letter N and blue
  3. What letter and color designation should protective earth conductors have in electrical installations?
    Should have letter designation PE and color designation alternating longitudinal or transverse stripes of the same width (for tires from 15 to 100 mm) of yellow and green colors
  4. What letter and color designation should have zero protective and zero working conductors combined?
    Must have a letter designation PEN and color designation: blue color along the entire length and yellow-green stripes at the ends
  5. What kind of letters and colors should tires have for alternating three-phase currents?
    Tires of phase A - yellow, phases B - green, phases C - red
  6. What kind of letters and colors should tires have at constant current?
    Positive bus (+) - red, negative (-) - blue and zero working M - blue
  7. What voltage should be used to power portable AC receivers?
    Not higher than 380/220 V
  8. What neutral should 10 kV power grids work with?
    With isolated neutral
  9. What are the power consumers in terms of ensuring the reliability of power supply belong to the second category power consumers?
    Electrical receivers, the interruption of the power supply of which leads to a massive shortage of products, massive downtime of workers, machinery and industrial transport, disruption of the normal activities of a significant number of urban and rural residents
  10. Which power consumers in terms of ensuring the reliability of power supply are classified as power consumers of the first category?
    Electrical receivers, the interruption of the power supply of which may entail: a danger to human life, a threat to the security of the state, considerable material damage, the breakdown of a complex technological process, disruption of the functioning of especially important elements of public utilities, communications and television facilities
  11. How many power sources are needed for the organization of power supply of power consumers of the second category?
    Two independent mutually redundant power supplies
  12. What safety requirements are imposed on OES for enclosing and closing devices?
    Must be designed to remove or open them only with keys or tools.
  13. What is the maximum voltage value that should be used to power portable (hand-held) lamps used in rooms with increased danger?
    Not higher than 50 V
  14. What is the maximum voltage in the electrical distribution networks to which the sources of welding current are connected?
    Not higher than 660 V
  15. How are power tools classified according to their method of protection against electric shock?
    Divided into 4 classes - zero, first, second and third
  16. At what height should industrial receptacles be installed in industrial premises?
    0.8-1.0 m from the floor level
  17. What luminaires are recommended for emergency lighting?
    Fluorescent lamps or incandescent lamps
  18. How many incandescent bulbs each up to 60 W can be connected to single-phase staircase lighting groups?
    Not more than 60 incandescent bulbs
  19. How many fluorescent lamps, each up to 80 W each, are allowed to be connected per phase to power the ceiling light?
    Not more than 60 lamps
  20. How many fluorescent lamps, each up to 40 watts in power, are allowed to be connected per phase to power the ceiling light?
    Not more than 75 lamps
  21. How many fluorescent lamps each up to 20 watts in power are allowed to be connected per phase to power the ceiling light?
    No more than 100 lamps
  22. At what height above the carriageway of streets is it recommended to install lamps?
    At a height of at least 6.5 m
  23. At what height above the trolleybus contact network from the level of the roadway is it recommended to install lamps?
    At a height of at least 9.0 m
  24. At what height on the footpath from the ground level should lamps be installed?
    At a height of at least 3, 0 m
  25. At what maximum voltage is it allowed to use receptacles to control lights?
    At voltage up to 50 V
  26. At what maximum height is it recommended to install receptacles in administrative buildings?
    At a height of not more than 1.0 m
  27. At what height from the floor level should the switches be installed for luminaires of general lighting in administrative buildings?
    At a height of 0.8 to 1.7 m from the floor


Topic 2. General provisions of existing rules and regulations when working in electrical installations
  1. What electrical installations are covered by the requirements of the Electrical Installation Rules?
    On newly constructed and reconstructed electrical installations of direct and alternating current with voltage up to 750 kV,
  2. Requirements of any regulatory and technical documents must comply with the device electrical installations?
    PUE, PTEEP, IPBEE, GOST, SNiP and other regulatory and technical documents
  3. How are electrical installations divided according to electrical safety conditions?
    Electrical installations with voltage up to 1000 V and above 1000 V
  4. To whom do the Inter-sectoral rules on labor protection (safety rules) apply when operating electrical installations?
    On employees of organizations, regardless of the form of ownership and organizational-legal forms, and other individuals engaged in maintenance of electrical installations, conducting operational switching in them, organizing and performing construction, installation, commissioning, repair work, testing and measurement
  5. Who is affected by the Rules of technical operation of electrical installations of consumers?
    On organizations, regardless of the form of ownership and legal forms, individual entrepreneurs operating current electrical installations with voltage up to 220 kV inclusive, and citizens - owners of electrical installations with voltage above 1000 V
  6. What is the responsibility for violating the rules and regulations in the operation of electrical installations?
    In accordance with current legislation
  7. What are the personal responsibility of employees who directly serve electrical installations?
    For violations that occurred through their fault, as well as for the improper elimination of violations in the work of electrical installations in the serviced section
  8. What are employees responsible for repairing electrical installations personally responsible for?
    For violations in the work caused by the poor quality of repair
  9. What should an employee do when he notices electrical installation or protective equipment faults?
    Immediately report this to your immediate supervisor, in his absence to your supervisor
  10. How are premises classified in terms of electrical shock hazard?
    Premises without increased danger, premises with increased danger, especially dangerous premises and the territory of open electrical installations
  11. What premises belong to premises with the increased danger?
    Any of the listed rooms refers to high-risk rooms.
  12. What premises belong to especially dangerous premises?
    Any of the listed rooms is classified as especially hazardous.
  13. What premises belong to the electric rooms?
    Premises or parts of a room fenced in (for example, with grids) where electrical equipment is located that is accessible only to qualified service personnel
  14. What rooms are called raw?
    Rooms in which the relative humidity exceeds 75%
  15. What rooms are wet?
    Rooms in which the relative humidity of air is more than 60%, but does not exceed 75%
  16. What rooms are called dry?
    Rooms in which the relative humidity does not exceed 60%
  17. What rooms are called especially raw?
    Rooms in which the relative humidity is close to 100%
  18. Who carries out state supervision over the observance of the requirements of the rules and standards of electrical safety in electrical installations?
    Rostekhnadzor
  19. How long does it take for a comprehensive testing of the main and auxiliary equipment of the electrical installation prior to acceptance into operation?
    Within 72 hours
  20. How long does it take for a comprehensive testing of the operation of the power line before acceptance into operation?
    Within 24 hours
  21. How is the voltage applied to electrical installations approved in the prescribed manner for operation?
    After obtaining permission from Rostechnadzor and having an agreement with the energy supplying organization
  22. Who should ensure the reliability and safety of electrical installations?
    Consumers


Topic 3. Requirements for personnel and its preparation
  1. What groups are divided electrotechnical personnel of the organization?
    On operational, administrative and technical, operational and repair and repair
  2. How often is the electrical safety knowledge test carried out for electrical personnel?
    At least once a year
  3. What is the periodicity of the electrical safety knowledge test set for electrical installation personnel?
    At least once a year
  4. When is an extraordinary testing of staff knowledge?
    In any of these cases
  5. During what time from the date of the last test of knowledge can an employee who has received an unsatisfactory grade re-test knowledge?
    Not later than 1 month from the date of the last inspection
  6. How long should an internship be held for electrical personnel at the workplace before being assigned to independent work?
    2 to 14 shifts
  7. Who has the right to conduct a test of knowledge of non-electrical personnel with assignment of I group of admission?
    An employee from among the electrical personnel of this Consumer with a group of electrical safety not lower than III
  8. Who belongs to the electrotechnological staff?
    Personnel who carry out maintenance of electrical installations, and uses electric machines, portable power tools and lamps
  9. Who are the operating personnel?
    Personnel engaged in the operational management and maintenance of electrical installations (inspection, operational switching, preparation of the workplace, approval and supervision of workers, performance of works in the order of current operation)
  10. Who are the maintenance personnel?
    Personnel providing maintenance and repair, installation, commissioning and testing of electrical equipment
  11. Who belongs to the operational maintenance staff?
    Repair personnel specially trained and trained for operational service in the approved scope of electrical installations assigned to it
  12. What kind of personnel are non-electrical?
    Personnel that do not fall under the definition of "electrical", "electrical technology" personnel
  13. What are the age limits for the assignment of the third group on electrical safety?
    Group III can only be assigned to employees upon reaching the age of 18
  14. How long is the duplication before the electrical personnel is allowed to work independently?
    2 to 12 shifts
  15. For how long can duplication be extended for an employee, if he has not acquired sufficient production skills in the allotted time?
    2 to 12 shifts
  16. What responsibilities are assigned to maintenance personnel?
    Providing maintenance and repair, installation, commissioning and testing of electrical equipment
  17. What is the minimum work experience a person with a higher electrical education should have in order to switch from the third electrical safety group to the fourth?
    2 months in the previous group
  18. What initial electrical safety group should an employee have when transferring him from servicing electrical installations with voltages up to 1000 V to servicing electrical installations with voltages above 1000 V?
    No higher than third
  19. Who has the right to carry out maintenance of batteries and chargers?
    Specially trained personnel with a group of III on electrical safety


Topic 4. The procedure and conditions for the safe production of works in electrical installations
  1. What works are related to works with stress relief?
    Work when the live parts of the electrical installation, where the work will be carried out, disconnect the switching devices, disconnect buses, cables, wires, remove the voltage and take measures to prevent the supply of voltage to the current carrying parts
  2. Which electrical safety team should have workers from among the operating personnel, solely serving electrical installations?
    Not lower than group III
  3. Who has the right to solely serve electrical installations with voltage up to 1000 V?
    Employees from among the operational or operational-repair personnel of the organization, having a group on electrical safety not lower than III
  4. Which of the following activities are organizational? Give the most complete answer.
    Registration of work by order, order or list of work performed in the order of current operation, admission to work, supervision during work, registration of a break in work, transfer to another place, termination of work
  5. Who can be responsible for the safe conduct of work? Give the most complete answer.
    Issuing order, giving the order, approving the list of work performed in the order of current operation, responsible manager of work, allowing, work foreman, supervising, team members
  6. For how long is issued an outfit for the work in electrical installations?
    Not more than 15 calendar days from the date of commencement of work
  7. For how long is an order issued for the work in electrical installations?
    The order is a one-off character, its duration is determined by the duration of the working day of performers
  8. In which electrical installations can work be performed in the order of current operation?
    In electrical installations with voltage up to 1000 V
  9. Which of the following can be attributed to work performed in the order of current operation in electrical installations with voltage up to 1000 V?
    Removal and installation of electricity meters, other devices and measuring instruments
  10. What kind of instructions should an electrical engineer have to do before commencing an order?
    Trust
  11. In what sequence it is necessary to perform technical measures to ensure the safety of works with stress relief?
    Make the necessary disconnections, post prohibitory posters, check for lack of voltage on current-carrying parts, establish grounding, post demonstrative posters
  12. When is a responsible work manager usually appointed?
    In electrical installations with voltage above 1000 V
  13. What electrical safety group should be allowed to work in electrical installations?
    In electrical installations up to 1000 V - the third, and in electrical installations above 1000 V - the fourth
  14. What is the observer responsible for in electrical installations?
    For the safety of brigade members with regard to electrical shock
  15. What works on disposal in electrical installations with a voltage higher than 1000 V can be carried out by one worker who has the third electrical safety group?
    Works on electric motors and mechanical parts of fans and oil pumps of transformers and compressors
  16. How can brigade members with the third group on electrical safety provide temporary departure from the workplace in the Republic of Uzbekistan?
    With the permission of the manufacturer, independently
  17. How many workers and with which electrical safety group should perform the absence of voltage test on overhead lines with voltage up to 1000 V?
    Two workers with group III
  18. According to what document are electrical equipment tested using a mobile test set?
    Along along
  19. How often should the electrical installation electrical circuits be checked for compliance with the actual operational ones?
    At least once every two years with a check mark
  20. Who should have operational schemes of electrical installations of a separate section?
    Workplace operational staff
  21. In which case should electric motors be disconnected from the mains immediately?
    In any of these cases
  22. Who should carry out the replacement and routine verification of electricity meters?
    The owner of metering devices in coordination with the power supplying organization
  23. Who in the organization monitors the operation of electricity meters?
    Operational staff
  24. What document should be in the hands of electrical personnel to measure the megohmmeter in electrical installations with voltage up to 1000 V?
    Order
  25. How many people should be in the brigade performing work on hauling and replacing wires on air lines with voltage up to 1000 V?
    At least two people, and the manufacturer must have IV electrical safety group
  26. What safety measures must be taken to prevent erroneous switching on of switching devices in the absence of fuses in the circuit during a scheduled electrical installation repair?
    You can take any of these measures, or carry out the splitting or disconnection of the cable, wires from the switching device or from the equipment on which the work will be performed
  27. What prohibiting posters are posted on the drives of switching devices in order to avoid supplying voltage to the workplace during the repair or scheduled inspection of equipment?
    "Do not turn on! People work
  28. What prohibitory posters are hung on the gate valves, which close the access of air to the pneumatic actuators of the disconnectors, in order to avoid supplying voltage to the workplace during repairs or scheduled inspection of equipment?
    "Do not open! People work


Topic 5. Grounding and protective measures of electrical safety. Lightning protection
  1. What is meant by the voltage of touch?
    Tension between two conductive parts or between the conductive part and the ground while simultaneously touching a human or animal
  2. What is meant by step voltage?
    The voltage between two points on the surface of the earth at a distance of 1 m from one another, which is assumed to be equal to the length of a person’s step
  3. What protective measures are used to protect people from electric shock if they are indirectly touched in the event of insulation damage?
    Safety ground
  4. When should protection be performed with indirect contact?
    In all cases, if the voltage in the electrical installation exceeds 50 V AC and 120 V DC
  5. What should be the measures of direct contact?
    Any of the above measures individually or in combination
  6. What can be used as natural grounding?
    Metal water pipes laid in the ground
  7. What material should be made artificial earthing?
    Black or galvanized steel or copper
  8. What is called protective grounding?
    Electrical grounding
  9. What is a working ground?
    Grounding point or points of current-carrying parts of electrical installations performed to ensure the operation of electrical installations (not for electrical safety purposes)
  10. How do you connect the grounding conductors to the grounding and grounding structures?
    By welding
  11. What is the frequency of visual inspection of the visible part of the grounding device?
    According to schedule, but at least once every six months
  12. What is the frequency of inspections of grounding devices with selective soil digging?
    According to the schedule, but at least once every twelve years
  13. In which case should the grounding element be replaced?
    If more than 50% of its section is destroyed
  14. What objects belong to special objects according to the degree of danger of being struck by lightning?
    Objects that pose a danger to the immediate environment, social and physical environment
  15. What objects belong to ordinary objects according to the degree of danger of being struck by lightning?
    Buildings not exceeding 60 m in height intended for trade and industrial production, as well as residential and administrative buildings
  16. What structural elements of buildings and structures can be considered as natural interception rods?
    Any items listed
  17. When is the inspection and inspection of lightning protection devices?
    Once a year before the start of the storm season
  18. When are extraordinary measurements of the resistance of lightning protection devices?
    After performing repair work both on the lightning protection devices and on the protected objects themselves and near them
  19. In what color should open grounding conductors be painted?
    In black color
  20. What color should be painted artificial earthing?
    They should not have coloring


Topic 6. Rules for the application and testing of protective equipment used in electrical installations
  1. What protection means are the main insulating electroprotection means for electrical installations with voltage up to 1000 V?
    Insulating rods of all kinds, insulating pliers, voltage indicators, electrical pincers, dielectric gloves, hand insulating tools
  2. What kind of protective equipment is related to additional isolating electrical protective equipment for electrical installations with voltage up to 1000 V?
    Dielectric galoshes, dielectric carpets and insulating supports, insulating caps, coatings and linings, ladders, step-ladders insulating fiberglass
  3. What protection means are the main insulating electroprotection means for electrical installations with voltage over 1000 V?
    Insulating rods of all kinds, insulating clamps, voltage indicators
  4. What remedies are personal?
    Protective equipment for head, eyes, face, respiratory organs, hands, from falling from a height, special protective clothing
  5. What is the frequency of inspection of the state of protective equipment used in electrical installations?
    At least once every six months
  6. Is it possible to use expired protection?
    Not allowed
  7. How can a worker, with the direct use of protective equipment, determine that electrical protective equipment has passed operational tests and is suitable for use?
    Stamped or labeled for protection
  8. In which electrical installations can control lamps be used as voltage indicators?
    The use of test lamps is prohibited
  9. In which electrical installations do you need to wear dielectric gloves when using a voltage indicator?
    In electrical installations with voltage above 1000 V
  10. How long should direct contact of the voltage gauge with controlled current-carrying parts be ensured when checking the absence of voltage in electrical installations with voltage up to 1000 V?
    Not less than 5 s
  11. What is electrical clamp for?
    For any of the listed measurements
  12. In which electrical installations dielectric gloves are used as the main insulating means of protection?
    In electrical installations up to 1000 V
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Topic 7. Rules for the release of victims of electrical current and the provision of first aid to them
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PS or what else


I repeat, this article is a continuation of the previous post , you can look at a bit of theory in it (some minimum is stated there in brief), addresses of on-line services for preparation in the same place.
The peculiarity of my situation is that for working with network equipment I need group III. First, II is dealt, then group III (according to the rules, in two months, it seems, months). Good luck to us, and safe electricity!
And use grounded bracelets!

Source: https://habr.com/ru/post/178855/

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