Preparation of technical inspection reports for electrical equipment. General requirements for carrying out work on technical examination of electrical equipment of power plants and networks

Changing the owner of an electrified facility or re-issuing documents indicating the owner’s authority is a fairly common practice in the modern legal field. But no matter how far the competence of lawyers is from the energy supply sector, all of the above operations related to the re-registration of documentation necessarily entail technical examination of electrical installations.

The corresponding clause prescribing mandatory inspection is specified in the permitting documentation for connecting power consumption. If this item is not included in the permitting documentation, then the inspection (examination) procedure is not mandatory.

During the inspection process, certain inconsistencies may be identified that must be corrected. In this regard, specialists carrying out this procedure initiate work to adjust the power supply design, agree on technological documentation, etc. The cost of work related to the inspection of electrical installations depends on the conditions power connection permits. That is, it depends on what consumption parameters are specified in this permit. The price for the examination is the same for all subscribers, and it is determined by the requirements of the organization that has passed specialized accreditation with MOESK. As for the cost of additional work: it depends on the pricing principles adopted in a particular organization involved in the technical inspection of electrical installations.

The need for a technical inspection is based on the relevant government regulation, which determines the sequence of use of electrical installations by subscribers. In cases where it is made connection to electrical networks of an object when the owner changes or when registration documents are reissued, a special MOESK regulation comes into force, which requires the subscriber to undergo a mandatory technical inspection of his energy-consuming equipment.

Work performed during technical examination

The procedure for checking an electrical installation, as a rule, comes down to performing a certain list of works:

Familiarization with the submitted documentation and its comprehensive verification.
Inspection of electrical installation.
Checking electrical installations for compliance with the data specified in the design documentation.
Checking how well it was done installation of electrical equipment.
Checking the functionality of auxiliary tools and protective equipment.
Checking working components of electrical installations for faults.
Checking the status of energy consumption meters.
Checking the installed connections for compliance with single-line wiring diagrams.
Checking the functionality of fire extinguishing equipment, emergency lighting systems and warning systems.

Required documents

Preparation for a technical inspection involves collecting the necessary documentation. We present to your attention a short list of it:

Certificate confirming ownership.
Permits for electric installation work related to power connection.
Single line diagram of the power supply system.
List of completed electrical installation work.
Act on checking the performance of metering devices.
Data on the availability of protective and fire extinguishing equipment, as well as information on their quantity.
Test certificates that are carried out electrical installation organizations.

In conclusion, we would like to remind you once again that the need for a technical examination is determined on the basis of the information contained in the permitting documentation for power connection.

For electrical installations that are newly installed, as a rule, a standard documentation package is sufficient. A technical inspection certificate is required when receiving an approval certificate for an installation that has not been used for a long time.

In many cases, the only way to legalize an installation that has been operated without undergoing an official commissioning procedure is a technical examination. If the balance holder does not have technical documents, the Rostekhnadzor inspector orders a technical examination. For technological equipment, such a survey is carried out after the passport service life expires. Its purpose is to establish the possibility of using electrical equipment in the future. Electrical equipment refers to the entire set of electrical equipment, including household and lighting. The lifespan of household equipment is always longer than that of technological equipment. For this reason, inspection of technological systems (air conditioning, ventilation, heating, etc.) is most often required.

Technical examination

According to the PUE, the consumer must provide maintenance of the installation and carry out scheduled preventive maintenance. Responsibility for carrying out these activities lies with the head of the company. The plan and list of all types of work, based on the changing operating conditions of the equipment, are approved by the head of the company. After the service life established by the regulatory technical documentation expires, there is a need to conduct a technical examination in order to establish new terms and operating modes. The inspection must be carried out using an electrical measuring laboratory certified by Rostekhnadzor. The person responsible for electrical equipment for all types of work draws up ready-made plans and schedules, which are approved by the technical manager of the consumer.

Also, the requirement for a technical inspection of the building may be put forward by OJSC MOESK when the owner of the facility changes and documents are reissued at existing facilities. The basis for its holding is a record of permission to join.

1. Introduction

1.1 The scope of technical inspection of electrical equipment includes the following work:
1.1.1 Inspections of electrical equipment assigned to site personnel, carried out at least once a month. For power equipment classified as basic, as well as for equipment operating in conditions of increased danger and aggressive environments, inspections are carried out at least 2 times a month.
1.1.2 Shift inspection by operating personnel of substations assigned to brigades. In this case, special attention should be paid to:

on the state of the power supply circuit of the electrical installation;
on the position of the keys (automatic transfer switch, alarm system);
on the position of blinkers;
on the state of control machines;
for the absence of burning smell and smoke;
for any other manifestations of abnormal operation of the equipment (rattling, etc.);
operating modes of equipment, in particular loads.

Monitoring their compliance with the requirements of the Rules for the Technical Operation of Consumer Electrical Installations (hereinafter referred to as PTEEP) and the Interindustry Rules for Labor Safety during the Operation of Electrical Installations POT R M–016–2001 (hereinafter referred to as MPOT), instructions from manufacturers and production instructions for the operation of relevant types of equipment.

In addition, it is necessary to monitor the condition of the construction part of substations in accordance with the requirements of clause 3.5 of this appendix.

1.1.2 Shutting down equipment in emergency situations, in accordance with the requirements of PTEEP and MPOT in the manner prescribed by production instructions I.SMK 15E3 “On the operational maintenance of electrical installations and production instructions for the operation of relevant types of equipment.
1.1.3 Conduct a technical inspection of stationary technical diagnostic systems at least once a month.

2. Inspection requirements

2.1 The scope of inspections carried out both as a technical inspection and according to a schedule, as independent operations, includes the following work:
2.1.1 Monitoring the readings of thermometers, pressure gauges, vacuum gauges, the oil level in oil-filled bushings and expanders, monitoring electrical equipment loads, monitoring monitoring systems, readings of control devices, recording climatic indicators.
2.1.2 Monitoring the condition of casings, seals, taps; checking the absence of oil leaks, the condition of thermosiphon filters and moisture-absorbing cartridges, oil collecting devices.
2.1.3 Visual check of the condition of the insulators, absence of dust, cracks, chips, discharges, etc.; inspection of insulator fastening.
2.1.4 Checking the presence of malfunctions and compliance with the requirements of PTEEP and MPOT fencing, warning posters and inscriptions, protective equipment and the timing of their testing, fire fighting equipment.
2.1.5 Checking the density and seals of meters and relays, checking the operation of meters.
2.1.6 Checking the condition of the busbar, cables, the absence of heating of contact connections, checking the absence of glow and burnt contacts, changes in the color of paints and films.
2.1.7 Thorough check of the condition of the grounding network, including places where portable groundings are applied, checking the reliability of grounding of the equipment being tested.
2.1.8 Checking the serviceability of the alarm system, the position of keys, indicators, the state of breakdown fuses, checking the position of the machines.
2.2 Defects (except for the defects provided for in clause 3.5.13 of these instructions) discovered during inspections are recorded in the defect list (Appendix 19).
2.3 The dispatcher at the daily operational meeting (and if urgent troubleshooting is necessary, immediately) informs the engineering and technical personnel about problems detected on the equipment assigned to them.
2.4 After eliminating the defect, a corresponding note is made in the defect sheet.
2.5 After completing the technical inspection, a technical inspection log (Appendix 19) is filled out for each unit of inspected electrical equipment. The technical inspection log and defective statement are stored in the information system.

3. Technical inspection of main types of electrical equipment.

3.1. Current-limiting reactors

3.1.1 When inspecting current-limiting reactors, the following is checked:

concrete columns for the absence of cracks and chips;
strength of installation of fastening bolts and contact clamps into concrete;
integrity of the varnish coating of concrete columns;
serviceability of turns insulation;
absence of deformation of the turns and their short circuit to each other;
no damage to the support insulators and reliability of their fastening to concrete columns.

3.1.2 Inspections of reactors without shutting them down are carried out once a month.
3.1.3 Extraordinary inspections are carried out:
after unfavorable weather influences (sharp temperature changes);
when disabled by protection.

3.2. Oil circuit breakers, load switches and disconnectors

3.2.1 When inspecting oil switches, load switches and disconnectors, the following is checked:

contact status;
condition of the drive mechanism;
state of buffers;
state of trip springs;
condition of oil level indicators;
condition of knives;
no oil leakage;
insulation condition (dustiness, presence of cracks, discharges);
fastening secondary circuit connectors;
air pressure in the drive system;
no air leakage.
serviceability and correctness of indications of position indicators and locking devices.

3.2.2 Inspections of oil switches without turning them off are carried out once a month and always during commissioning.

3.3 Current and voltage transformers

3.3.1 When inspecting current transformers, the following is checked:

no traces of overheating of current-carrying parts and magnetic circuits;
lack of insulating mass;

serviceability of secondary circuits.
3.3.2 Inspection of current transformers is carried out when putting them into operation and during inspection of the switchgear.

3.4 Power transformers

3.4.1 Inspection of power transformers without disconnecting them is carried out within the following periods:

PGV-110/6 kV – once a day;
at transformer points - at least once a month.

3.4.2 The scope of inspections of power transformers includes:

transformer load control;
monitoring the readings of thermometers, pressure gauges, vacuum gauges, the oil level in tanks and conservators;
monitoring the condition of valve casings and seals;
checking for oil leaks and the condition of oil collecting devices;
visual check of the condition of the insulators, absence of dust, cracks, chips, discharges, etc.;
checking the presence and serviceability of grounding, fencing, inscriptions;
color control of indicator silica gel;
monitoring the operation of the cooler and circulation pumps.

3.4.3 Extraordinary inspections of transformers are carried out:

after gas protection has been activated;
after a short circuit in the 0.4 kV network;
before starting work.

3.4.4 Emergency shutdown of transformers is necessary when:

strong uneven noise and crackling inside the transformer;
abnormal and constantly increasing heating of the transformer under normal load;
release of oil from the conservator or exhaust pipe;
oil leaks with a decrease in its level below the level of the oil level glass;
based on the results of thermal imaging diagnostics.

3.5 Switchgear

3.5.1 When inspecting switchgears, it is necessary to check:

condition of the premises;
serviceability of doors and locks;
serviceability of blinds on windows;
absence of leaks in the roof and interfloor ceilings;
heating serviceability;
serviceability of lighting and grounding network;
closeness of cabinets;
operation of alarm and communication systems;
completeness of protective and fire-fighting equipment, timing of their testing;
availability of single-line switchgear diagrams.

3.5.2 The room must be cleaned using a wet method.
3.5.3 All keys, buttons, and control handles must have inscriptions indicating the operation for which they are intended.
3.5.4 Warning posters, signs and inscriptions of the established type must be posted or applied on the doors of the switchgear, the gates of transformer chambers.
3.5.5 The connection fuses must have inscriptions indicating the rated fuse-link and the name of the drive.
3.5.6 The air temperature inside the indoor switchgear in the summer should be no more than 40°C.
3.5.7 Stationary stairs at service platforms must be locked.
3.5.8 Supply and exhaust ventilation must be turned on constantly.
3.5.9 Distribution devices must be equipped with drive handles.
3.5.10 There should be no foreign objects in the electrical installation rooms.
3.5.11 The network for connecting welding stations must be de-energized. Supply to this network is possible with a permit for hot work.
3.5.12 Full inspections of switchgear devices must be carried out at least once a month.
3.5.13 Defects discovered during inspection of switchgears are entered into the “Log of TP and RTP defects” and transferred to the information system.
3.5.14 After eliminating the defect, the results are transferred to the information system, and a corresponding note is made in the TP and RTP defect log.

3.6 Electrical networks

3.6.1 Inspections of electrical networks (power cable lines, control cable lines and overhead power lines) are carried out without removing voltage.
3.6.2 When inspecting cable lines, you must:

control the compliance of cable sections with the actual load;
conduct an inspection of the entire route, intersections with other communications;
pay attention to the absence of failures in trenches with cables, to the absence of heavy objects on the cable route, to the integrity of the coating of cable channels;
pay special attention to the condition of the outer surface and fastening of cables passing along overpasses, walls of buildings and other structures, to the condition and fastening of structures along which cables are laid;
inspect the places where cables exit the walls of the building (exit holes for cables from pipe blocks must be tightly sealed with fireproof materials);
check the presence of protection (its condition and fastening) of cables from mechanical damage, check the condition of grounding of cables and end couplings, grounding of pipe lines;
check the serviceability and condition of the end couplings, as well as their fastenings;
inspect the approaches to distribution points and pantographs;
inspect fireproof partitions;
restore damaged cable markings, markers, warning signs and posters.

3.6.3 In cable structures and other premises, systematic monitoring of the thermal operating conditions of cables, air temperature and operation of ventilation devices must be organized.
3.6.4 Inspections of cable lines must be carried out within the following periods:

cable routes laid in the ground are checked at least once every 3 months;
Cable routes laid on overpasses, in tunnels, galleries, along the walls of buildings are checked at least once every 6 months.

3.6.5 Periodically, at least once every 6 months, engineering and technical personnel perform random inspections of cable networks.
3.6.6 When inspecting overhead power lines, you must check:

fire safety condition of the route within the security zone and support trenches;
absence of breaks and melting of individual wires;
absence of foreign objects under the wires (trees, buildings, etc.);
wire sag;
absence of fights, burns, cracks in insulators;
condition of supports and their grounding;
presence and condition of warning posters and other signs;
presence of bolts and integrity of welds on metal supports;
condition of reinforced concrete supports;
condition of arresters and cable funnels on slopes.

3.6.7 Inspection of overhead power lines along their entire length is carried out at least once a year.
3.6.8 During the inspection of the overhead power line, it is not allowed to carry out any repair or restoration work, or to climb onto the support and its structural elements.

3.7 Electrical apparatus up to 1000 V

3.7.1 The scope of inspections of electrical devices with voltage up to 1000V includes:

checking the compliance of devices with operating conditions and load;
cleaning of devices;
checking the serviceability of the electrical wiring and grounding network connected to the devices;
external and internal inspections of devices, elimination of visible damage;
tightening fasteners;
cleaning contacts from dirt and deposits;
checking the serviceability of casings, handles, locks, handles, and other fittings;
checking the oil level and temperature for leaks and adding oil if necessary;
checking the heating of resistance elements and contacts in all ballasts;
checking the presence of appropriate inscriptions on shields, panels and devices;
checking the presence of heating elements and thermal relays and their compliance with the rated current of pantographs;
regulation of the simultaneity of turning on and off the blades of switches and switches;
replacing fuses;
checking the operation of signaling devices and the integrity of seals on relays and other devices.

3.7.2. The duty personnel, if necessary, must carry out minor repairs or replace failed devices.
3.7.3 When performing technical inspection and repair of explosion-proof devices, you should be guided by the “Production Instructions for the Repair and Maintenance of Explosion-Proof Electrical Equipment”
3.7.4 The frequency of technical inspections of electrical devices must correspond to the duration of maintenance and repair cycles established at the enterprise.

3.8 Electrical machines

3.8.1 The scope of inspections of electrical machines includes:

monitoring compliance with operating and safety rules by operators and machinists working on equipment;
load control;
bearing temperature control;
temperature control of windings and housing;
monitoring the temperature of incoming and outgoing air of the engine ventilation system;
control over the presence of lubricant;
checking the absence of extraneous noise, hum and vibration, as well as the absence of sparking on the collectors and rings;
monitoring the serviceability of explosion protection and grounding elements.

3.9 Capacitor units

3.9.1 During inspections of capacitor units, the following is checked:

condition of fences;
absence of foreign objects on the fence;
absence of dirt, dust, cracks on insulators;
no swelling of the walls of the capacitor housings, no traces of leakage of impregnating liquid;
integrity of fusible links in fuses;
current value and load uniformity of individual phases of the battery;
value on tires;
serviceability of the discharge device circuit;
serviceability of grounding, disconnectors, switches;
availability and serviceability of interlocks to ensure safety.

3.10 Batteries

3.10.1 When inspecting batteries, you should check:

integrity of cans;
presence and serviceability of jumpers;
no electrolyte leakage;
operation of supply and exhaust ventilation.

3.10.2 Inspections of batteries are carried out by personnel on duty once a day; maintenance - by an ETL specialist at least once a month.
3.10.3 For each battery installation, a battery log (Appendix 19) must be kept to record the results of inspections and the scope of work performed. The magazine is stored in the battery room.

3.11 Relay protection, electrical automation, telemechanics and secondary circuits

3.11.1 Personnel of the ETL relay protection group must periodically inspect:

all panels and control panels;
relay protection panels;
electrical automation panels;
telemechanics panels;
alarm panels;
secondary contact connectors.

In addition, during inspections it is necessary to pay attention to the correct position of switching devices (circuit breakers, control keys, etc.) and their compliance with the circuits and operating modes of electrical equipment.
3.11.2 Inspections are carried out at least once every 6 months and always before starting up the installations.
3.11.3 Operating personnel are responsible for the correct position of those elements of relay protection of automation and telemechanics with which they are allowed to perform operations, regardless of periodic inspections by the personnel responsible for the equipment.
3.12 All electrical equipment in hazardous areas must be subject to external inspection by responsible persons from among the administrative personnel to the extent specified in clauses 3.4.20–3.4.30 of the PTEEP (section 6 of this appendix). The distribution of objects between responsible persons and the frequency of inspections are determined by the “Inspection Schedule for Explosion-Proof Electrical Equipment.”
3.13 Electrical equipment in explosive zones of the LAB-LABS group of workshops must be subject to external inspection by the person responsible for the electrical equipment of the LAB-LABS group of workshops at least once a month. The scope of the inspection is defined in section 6 of this appendix.

4. Safety requirements

A single inspection of electrical installations and the electrical part of process equipment can be performed by an employee with group no lower than III, from among the operational personnel on duty, or by an employee from among the administrative and technical personnel with group V - for electrical installations with voltages above 1000 V, and an employee with group IV - for electrical installations up to 1000 V and the right to individual inspection on the basis of a written order from the manager.
It is not allowed to touch insulators or insulating parts of live equipment without using electrical protective equipment.
In electrical installations with voltages above 1000 V, staff members who solely service electrical installations or shift supervisors must have an electrical safety group of at least IV, and the rest of the shift workers must have a group of at least III.
In electrical installations with voltages up to 1000 V, operational personnel servicing electrical installations must have a group of at least III

5. Documentation

The results of the technical inspection are recorded in the technical inspection log (for each type of electrical equipment) and the defect sheet. It is recommended to have at least two copies of the journals: on paper and electronic journals).

Electrical installations operated by organizations must be subject to professional inspection from time to time, the result of which is the formation of a special act.

FILES

Basic rules for inspecting electrical installations

Typically, the procedure for inspecting electrical installations is prescribed in the organization’s local documentation. Thus, this procedure is always individual, but there are general principles for its implementation.

To begin with, the enterprise issues an order on behalf of the director, which appoints a commission and states its goals and objectives. Then, at the specified time, selected persons inspect the equipment and, based on its results, draw up a special report.

The inspection report acts as a reporting form, on the basis of which all further actions are carried out in relation to the inspected electrical installations.

Creation of a commission

As mentioned above, a special commission is involved in inspecting electrical installations. It consists of employees from different structural divisions of the organization, including those with special education and the necessary qualifications: an electrician, a labor protection engineer and, if necessary, for example, a lawyer or accountant.

Considering that we are talking about electrical installations, experts from third-party companies may also be involved in the inspection.

Why is an electrical installation inspection report drawn up?

The formation of this act is necessary to solve several problems at once:

it records all visible faults, defects and damage to the electrical installation;
control is carried out regarding its completeness and suitability for further work;
it is checked to what extent the equipment complies with the accompanying documentation, including the technical passport, etc.;
it is determined whether the electrical installation complies with electrical and fire safety standards, as well as other labor protection rules adopted at the enterprise.

Frequency of inspections

The frequency of inspection of electrical installations is determined on an individual basis. They can be carried out one time, but more often, they are still done on a regular basis.

Systematic inspections make it possible to prevent breakdowns and disruptions in current production work, and therefore avoid financial losses.

What to do if faults or defects are found during the inspection

Even with frequent checks, malfunctions cannot be ruled out. In this case, the commission conducting the inspection must give a conclusion that the electrical installation being inspected is not suitable for further operation.

The act includes a detailed description of the equipment, the degree of wear or characteristics of damage, the preliminary cost of repairs and its duration.

If the electrical installation is recognized as faulty to such an extent that its repair is impossible, then on the basis of this act, the accounting department subsequently writes it off.

Document form

Even before 2013, representatives of enterprises and organizations were required to use unified forms of acts. Today, this norm has been abolished, so now company employees can safely draw up acts in any form. The exception is those cases when the company has its own document template approved in its accounting policy - then the act must be created according to this standard.

Drawing up an electrical installation inspection report

Just like the format of the act, there are no strict criteria for its execution. That is, this act can be filled out on a computer or written by hand.

Only one condition must be met: if the act is done electronically, it will need to be printed. This is necessary so that the commission members involved in its preparation have the opportunity to sign for it.

It is not necessary to certify the act with a seal (it is needed only when its use is an instruction from the company’s management).

For printing, both a letterhead (with the details and logo indicated on it) and an ordinary sheet of paper are suitable.

How and where to record information about a document

Any forms generated in the organization (orders, acts, official and memos, contracts, accounts, etc.) must be registered in a special way.

Usually, accounting journals are used for this, which are kept for each document title separately. Such a log should also be kept in relation to equipment inspection reports - the name of the document, its number and the date of compilation are entered here.

Storage of the act

The general storage rules apply to this act. To begin, the completed and signed act must be placed in a separate file or folder that contains all previously generated similar documents. Here it should be located for a period of time specified in the law or prescribed in the company’s local documentation.

After this period (but not earlier), the report form should be sent to the archives or disposed of according to the established regulations.

Sample electrical installation inspection report

If you are faced with the task of creating an inspection report for an electrical installation that you have not dealt with before, we recommend that you look at the example below - based on it you can create your own form.

At the beginning of the act write:

Name of the organization;
Title of the document;
number, place (locality) and date of its compilation.

After that, move on to the main part. Please indicate here:

the facility in which the electrical installations are located, as well as the address at which it is located;
composition of the commission: positions and names of the organization’s employees and other persons present during the inspection;
information about the electrical installations themselves: their name, type, number, year of manufacture, service life and other identification parameters;
inspection results. Namely, if during the event any damage was identified or malfunctions were found, this must be reflected in the report. If everything is normal, this should also be noted in the report.

At the end, the commission makes its verdict, and each of its members certifies the document with their signature.