Classification of substations according to the degree of complexity of developing PPR

Substation voltage, kV

Developer

Source of financing

Considers

Approves

Responsible for implementation

Not complicated

Production and technical department of mechanical column

Overhead

Mechanical Column Technical Council

Chief Engineer

Chief engineer, line personnel of mechanical column

Medium difficulty

Technical department of the trust

Trust Technical Council

Particularly difficult

750, 1500 and reconstructed 500 and above

Technical department of a trust or specialized organization

Due to design work according to the consolidated estimate

4.2. Contents of the work project (title page)

4.2.1. The title page must be issued for the entire set of work plans, as well as for its component parts by type of work, if they contain more than 3 drawings.

The title page must contain:

a) situation plan for substation construction;

b) inventory of documents;

c) a list of applied and referenced documents;

d) statement of the main volumes of construction and installation work (CEM);

e) general instructions.

4.3. Work production schedule and comprehensive network schedule

4.3.1. As part of the PPR for simple substations, as well as for certain types of work, a work schedule is carried out, which must contain:

a) linear work schedule;

b) operating schedule of main construction machines;

c) labor flow schedule broken down by profession.

The schedule plan is drawn up according to labor costs, based on the physical volumes of work taken from the working drawings of the “Unified Standards and Prices for Construction, Installation and Repair Work”, in accordance with the optimal construction time frame and the breakdown of work by executing organizations.

4.3.2. For substations of medium complexity and particularly complex ones, a comprehensive network diagram is developed.

It defines:

a) the order of construction;

b) technological sequence;

c) duration of work;

d) delivery dates for building structures, electrical equipment and other material and technical resources;

e) the need for labor resources;

f) the need for mechanisms;

g) timing and scope of work by performing organizations;

h) deadlines for issuing design and estimate documentation, including PPR.

4.3.3. A comprehensive network schedule is developed in accordance with the “Guidelines for the development of network diagrams and their application in construction” and the “Guidelines for network planning and construction management” of the Orgenergostroy Institute.

4.3.4. The network schedule, drawn up taking into account the possibility of developing unified documentation for the production and technological configuration, must be accompanied by work identification cards.

4.4. Stroygenplan

4.4.1. A construction master plan is a general plan of a construction site, which shows all existing, under construction and auxiliary facilities necessary for construction (warehouses, administrative premises, temporary utility networks, etc.).

4.4.2. The construction plan should be developed based on a comparison of its various options with the most rational layouts of sites and temporary buildings with engineering and transport communications of a minimum length.

For simple and medium-complexity substations, a construction plan is developed once for the facility as a whole. For particularly complex substations, a construction plan is developed both for the entire substation as a whole, and for individual complex buildings and structures, including for individual queues and stages of construction.

4.4.3. The construction plan should show:

a) open switchgears, buildings and structures located within the construction site in question, both existing and newly constructed;

b) engineering communications necessary for the execution of work;

c) existing underground communications in the excavation area;

d) permanent and temporary overhead power lines indicating the boundaries of the dangerous zone, work in which requires the issuance of work permits;

e) temporary and permanent roads;

f) enlargement - assembly and storage areas with designation of storage locations and locations of stands for enlargement assembly;

g) solutions for surface water drainage;

h) permanent and temporary fencing of the construction site;

i) inventory temporary buildings and structures;

j) general site safety and industrial sanitation devices (bridges, pedestrian roads, stairs, fire extinguishing equipment, toilets, etc.);

k) hazardous areas, including areas of operation of lifting and earth-moving mechanisms; operating cells at reconstructed substations; individual electrical installations under voltage;

l) for medium complexity and particularly complex substations, the position of the geodetic alignment grid signs must be indicated;

m) for medium complexity and particularly complex substations, buildings and structures of the launch complex and subsequent stages and stages of construction should be highlighted on the construction plan.

4.4.4. The source documents for the development of the construction plan are:

a) general plan of the substation;

b) transport scheme adopted in the project;

c) launch complex;

d) internal title list;

e) time sheet of temporary buildings and structures for the construction of substation 35 kV and above;

f) standard drawings of inventory buildings and structures;

j) standard solutions for temporary roads, assembly sites;

h) regulatory documents;

i) as-built surveys of existing underground communications at existing substations (routes of power and control cables, grounding, water supply, oil drains and sewerage) with reference to capital structures.

4.4.5. The drawing of the construction plan shows:

a) explication of buildings and structures;

b) list of roads and sites;

c) information about the source materials for drawing up a construction plan;

d) text instructions.

4.4.6. When developing a construction plan, the following calculations are made:

a) the need for temporary buildings and structures, including warehouses, cultural and residential buildings;

b) the need for construction needs of electricity, water, compressed air, etc.

4.4.7. The construction plan must take into account fire safety requirements and provide circular or through passages. When locating temporary buildings, the following fire clearances (m) must be observed:

fireproof from fireproof - 10

fireproof from combustible - 16

combustible from combustible - 20

Fire hydrants are located at least 100 m apart, no closer than 5 m to buildings and no further than 3 m from the road.

4.4.8. To determine the effectiveness of the construction plan at medium and particularly complex substations, the options are compared according to the following indicators:

a) at given costs, including costs for the construction of temporary buildings and structures.

Construction plan options for the same site are compared by comparing the estimated costs of temporary construction, and different ones - by comparing the unit cost of construction, i.e. cost per unit area or unit of measurement of a building under construction;

b) according to the compactness of the construction plan, calculated as the percentage ratio of the building area of ​​the facility under construction to the area of ​​the construction plan;

c) in relation to the total area of ​​construction of temporary buildings and structures to the area of ​​the substation or individual unit under construction.

4.5. Schedule of requirements for building structures, parts, semi-finished products, materials and equipment

4.5.1. The schedule is carried out according to Form 5 of Appendix 3 "Instructions for the development of construction management projects and work production projects", SN 47-74.

4.5.2. Attached to the schedule are delivery lists for the delivery of technological kits.

4.5.3. For substations of medium and special complexity, if electric grid trusts have departments for production and technological configuration, unified documentation for production and technological configuration, compiled according to forms SN 47-74, is attached to the schedule.

4.6. Schedule of workforce requirements for the facility

4.6.1. The traffic demand for workers for medium and particularly complex substations is carried out according to Form 6 of Appendix 3 of CH 47-74.

4.6.2. Traffic is carried out based on the technological sequence, timing of work and output in monetary or in kind terms.

4.6.3. The need for workers is indicated separately for the general contracting and subcontracting organizations.

4.7. Schedule of requirements for basic construction machines and small-scale mechanization equipment

4.7.1. The demand schedule for main construction machines is carried out on the basis of the work schedule in accordance with the technological schemes and technological maps developed in the PPR for certain types of work.

The schedule is carried out according to Form 7 of Appendix 3 CH 47-74.

4.8. Technological diagrams of work production and technological maps, unit-by-unit technological models

4.8.1. When developing technology for carrying out work in PPR of all degrees of complexity, the following materials should be used:

a) previously developed PPR for re-use;

b) standard technological maps;

c) technological schemes for reuse and standard maps of labor processes.

All listed documents must necessarily be linked to local conditions of work.

4.8.2. In the absence or impossibility of linking standard or re-using the listed documents for complex work and work performed by new methods, process flow diagrams or individual process maps must be developed; For particularly complex substations, unit-by-unit technological models can be developed.

4.8.3. The technological scheme for the work must contain:

a) work flow diagram;

b) statement of quantities;

c) statement of requirements for structures and materials;

d) statement of requirements for construction machinery, small-scale mechanization equipment and vehicles;

e) a list of inventory of installation devices and equipment with reference to the relevant standard, manufacturer or set of working drawings;

f) instructions for the performance of work with the necessary explanations on the adopted technology for performing the work, with links to source documentation and a list of measures to implement quality control and ensure safe working conditions.

4.8.4. Standard technological maps for the construction of substations of all degrees of complexity are developed by the Institute "Orgenergostroy" in accordance with the "Guidelines for the development of standard technological maps in construction" of the Central Research Institute of Transport and Equipment of the USSR State Construction Committee.

4.8.5. Individual technological maps are developed by the author of the work project. The content, scope and methodology for developing these technological maps must comply with the “Guidelines for the development of standard technological maps in construction” of the TsNIIOMTP Gosstroy of the USSR.

4.8.6. For particularly complex substations as part of the PPR, unit-by-unit technological construction models can be developed consisting of:

a) node-by-node network diagram;

b) statements of quantities;

c) labor movement schedule;

d) delivery schedule for technological kits;

e) operating schedule of main machines and mechanisms;

e) technological scheme.

4.8.7. For substations of simple and medium complexity, standard technological maps and technological diagrams should be used.

4.8.8. As part of technological maps and technological diagrams, references should be given to standard inventory installation devices and equipment indicating GOST, a standard or a set of standard drawings.

4.8.9. For particularly complex substations and for new types of work, in the absence of standard inventory installation devices, the PPR, upon special order, may include the development of working drawings of these devices.

4.8.10. Working drawings of non-standard devices must be carried out in accordance with the requirements of the Unified System of Design Documentation (ESKD).

4.8.11. For simple devices, the manufacture of which is expected at the construction site, it is allowed to place the assembly drawing of the device, its parts and specifications on one sheet.

4.9. Geodetic works

4.9.1. The initial data for compiling the geodetic part of the PPR are:

a) technical report on the construction of a geodetic alignment base at the construction site;

b) working drawings of the facility under construction;

c) technological maps or work flow diagrams;

d) master plan of the construction site;

e) construction plan of the facility.

4.9.2. The geodetic part of the PPR must contain:

a) diagrams for placing signs for performing geodetic constructions and geodetic control of the position of structures;

b) standards of accuracy during work execution;

c) a list of technical means to perform the work.

4.9.3. The project for geodetic work for the preparatory period of construction of the facility should include:

a) organizational and technical measures, including a technological scheme for the production of geodetic work, the quantitative composition of the geodetic service, the necessary material and technical resources and the timing of geodetic work;

b) decisions on the acceptance of a geodetic alignment base, including requirements for accuracy standards for control geodetic measurements and technical means for achieving them; methods and methods of their production, requirements for signs for fixing points of the geodetic alignment base; the procedure for formalizing the acceptance of a geodetic alignment base and the scheme for operational control of its construction;

c) decisions on geodetic support for engineering preparation of a construction site when performing vertical planning, constructing roads and laying underground and above-ground communications.

4.9.4. The geodetic part of the PPR for the main period of construction of the facility should include:

a) calculation of the required accuracy of geodetic work;

b) instructions for carrying out geodetic work at individual stages of construction;

c) safety requirements.

4.10. Organization of continuous construction of particularly complex substations

4.10.1. For particularly complex substations, issues of organizing continuous construction are being developed as part of the work project.

4.10.2. When developing the section for organizing continuous construction in the PPR, the following technological issues are resolved:

a) list and sequence of leading and combined specialized flows;

b) the volume of work on specialized flows in general and by sections;

c) labor intensity and duration of operation of mechanisms (in machine shifts) according to ENiR data or calculations;

d) intensity of specialized flows;

e) the number of workers for each specialized stream;

f) the duration of each specialized flow at each site;

g) duration of deployment of specialized flows;

h) the duration of organizational and technological breaks between adjacent flows, so that the scope of work for the subsequent flow is accumulated;

i) type and number of leading machines for each specialized flow;

j) parameters of specialized flows (power, pace, intensity, duration);

k) cyclogram of the object flow (based on previously performed calculations and parameters of specialized flows).

4.11. Requirements for PPR for particularly complex substations

4.11.1. In the PPR for particularly complex substations, along with the requirements of this manual, the following must be developed:

a) the main provisions of the PPR;

b) organizational structure of construction;

c) node-by-node transport scheme;

d) working drawings of the construction base (construction yard);

e) PPR for the construction of housing, construction base;

f) technology of flow-high-speed construction;

g) dispatch and communication scheme;

h) fundamental decisions on technology and mechanization of main types of work;

i) schedule of requirements for structures, materials, equipment, broken down by year of construction;

j) schedule of personnel requirements broken down by years of construction;

k) schedule of the need for basic construction machinery and equipment and means of small-scale mechanization, broken down by year;

l) a list of the most complex devices and mounting equipment, the production of which requires a long time;

m) statement of temporary inventory of buildings and structures;

o) schedule for issuing design estimates and design and technological documentation.

4.11.2. PPR should be carried out in the form of unit-by-unit technological models.

4.11.3. The PPR must include both site-wide safety decisions and for each of the individual types of work. In this case, special attention should be paid to the safe organization and production of combined work in accordance with the “Instructions for the safe organization and production of combined and especially hazardous work on construction sites of the USSR Ministry of Energy” (Informenergo, Moscow, 1977).

4.12. Requirements for PPR of reconstructed and expanded substations

When developing PPR for reconstructed and expanded substations, the following features must be taken into account:

a) the PPR must be reviewed, agreed upon and approved by the operating organization;

b) in the work project it is necessary to indicate the procedure for admission, conduct and completion of work. Samples of relevant documents and examples of their completion should be provided;

c) in addition to the work schedule or network schedule, a schedule for disconnecting existing cells and individual electrical equipment that is energized is drawn up. The schedule indicates the sequence, timing and duration of outages, as well as the names of cells, outgoing overhead lines and other electrical installations that must be turned off to ensure the safety of workers;

d) when developing a construction plan, instructions must be made to clarify the locations of underground communications, especially cable lines by constructing pits;

e) on the construction plan, when developing technological diagrams and linking technological maps, energized cells and equipment must be highlighted, hazardous areas must be indicated, and minimum safe distances to live parts must be indicated;

f) biological protection measures must be provided;

g) in the safety section of the explanatory note and on the drawings it must be indicated that all work at an existing substation is permitted only with a work permit and other documents provided for by the “Safety Rules for Construction and Installation Work on and near existing power lines ", "Rules for the technical operation of consumer electrical installations" and "Safety rules for the operation of consumer electrical installations", as well as safety standards of operating enterprises;

h) in the safety section there should be a list of the inventory of protective equipment against electric shock and brief instructions on providing first aid to an electric shock victim;

i) indicate in the technological maps and explanatory note that the operation of lifting mechanisms without boom rotation limiters and crane lift height limiters, as well as those not equipped with voltage indicator devices, is prohibited;

j) all construction and installation work at reconstructed and expanded substations must be carried out under the guidance of engineering and technical personnel.

4.13. Requirements for PPR for the Northern zone

4.13.1. When developing a PPR for the Northern zone, the following should be taken into account:

a) long duration of the cold period, strong winds, snow drifts, permafrost soil conditions, polar day and night, territorial disunity of construction, seasonality in the delivery of material and technical resources to create the necessary reserves, the need to use special types of transport (river, hovercraft) , special types of tracked vehicles);

b) the short duration of the navigation period, the presence of deep-water berths, posts and transshipment bases in newly developed areas;

c) the need to increase costs for economic and household equipment to ensure normal living conditions and activities of people;

d) shift method for construction organizations. Work in winter conditions must be carried out according to a special work plan and justified by a technical and economic calculation.

4.14. Requirements for PPR for deep input substations

4.14.1. Deep input substations, as a rule, are built within the city, in dense urban areas rich in underground communications.

When developing the PPR, the following factors should be taken into account:

a) the need to clarify the locations of underground utility routes;

b) the need to carry out combined work;

c) the need to use special mechanisms;

d) organization of installation of structures mainly using the method of installation from wheels;

e) development of special safety measures.

4.15. Safety precautions, industrial sanitation, fire safety and explosion safety

4.15.1. Issues of safety, industrial sanitation, fire safety and explosion safety should be covered in the PPR in the form of specific technical solutions both for the site as a whole and for individual types of work.

These decisions should be part of the technological map or diagram, as well as the construction plan and presented in the form of graphic and text materials in the corresponding section of the PPR.

4.15.2. The development of safety issues in the PPR should be based on the following documents:

6. "Rules for the design and safe operation of lifting mechanisms."

7. Regulatory materials on labor protection for the development of PIC and PPR.

In addition, the PPR must take into account the provisions provided for by the integrated safety management system (IMS TB) and the enterprise safety standard (STP TB), if such have been developed in the trust, mechanical column or operating organization.

General safety instructions should be highlighted in a separate section in the explanatory note, for substations of medium and special complexity, as well as for expanded and reconstructed substations.

4.15.3. The safety section of the explanatory note should indicate the following:

a) climatic and soil-hydrological conditions of work;

b) requirements for the organization of work in the conditions of an existing substation;

c) the procedure for starting and completing work at an existing substation, examples of the execution of documents are provided;

d) requirements for organizing work in winter conditions;

e) organization of three-stage control during construction work;

f) list of inventory protective equipment;

j) the PPR for expanded and reconstructed substations contains methods of providing first aid to victims of electric current;

h) when reconstructing medium-complexity and particularly complex substations, biological protection measures must be provided.

4.15.4. When developing a construction plan, the following issues must be addressed:

a) the dimensions of hazardous areas and their fencing;

b) the order of construction of roads and access roads to facilities under construction (the width of the roads must ensure the transportation of transformers);

c) lighting of the construction site;

d) placement of fire hydrants;

e) arrangement of pedestrian paths;

f) placement of toilets.

4.15.5. When developing technological diagrams and maps for transport, loading and unloading and installation work, it is necessary to provide for:

a) the connection of machines and mechanisms and the dimensions of the danger zone during their operation;

b) carrying out combined work;

c) storage of structures with provision of passages and passages, safe dimensions of stacks, provision of access to slinging parts of structures;

d) schemes for slinging structures, ensuring their rigidity and stability;

e) schemes for transporting structures and securing them in transport position;

f) schemes for temporary fastening of structures during installation;

g) a list of regulatory documents regulating the safe conduct of work with lifting mechanisms;

h) registration of cranes with the Gosgortekhnadzor authorities, inspection and testing of slinging devices and test frequency;

i) test reports and operating instructions for new installation equipment and devices, if any.

4.15.6. For electrical safety of work, the following should be developed as part of the PPR:

a) power supply diagram;

b) security zones;

c) solutions for grounding construction machines and mechanisms with electric drives, step-down transformers, starting devices, electrified tools, lighting installations;

d) solutions for grounding and lightning protection of metal scaffolding.

4.15.7. The excavation project must include:

a) conditions for the approach of mechanisms to communications of all types (underground, aboveground), to the edges of pits, boundaries of dumps, etc., with the designation of the danger zone;

b) measures for safe working conditions when loosening frozen soil using a mechanical or explosive method, with a hydromechanized method of soil development, electrical heating, indicating the boundary of the danger zone;

c) measures to ensure the stability of slopes of pits and trenches;

d) safety requirements for water reduction and grounding of installations.

4.15.8. In the project for driving piles and installing sheet piling, the following must be determined:

a) conditions for storing piles (sheet piling), ensuring the safety of work on pulling and installing piles in a vertical position;

b) technology for welding pile heads;

c) dimensions of the danger zone.

4.15.9. When performing work at height, the PPR must define:

a) methods of scaffolding (scaffolding, scaffolding, cradles, etc.), structures and means of scaffolding;

b) installation locations and methods of fastening fencing, including fencing of openings;

c) places for attaching safety belts for workers at heights;

d) the need to install protective canopies, canopies over the entrances to buildings under construction, etc.;

e) the size of dangerous areas and methods of fencing them;

f) technical means for removing debris from heights.

4.15.10. In particularly difficult work conditions, the following safety measures must be taken:

a) when working in cramped conditions and lack of direct visibility between workers - limitation of the angle of rotation or lifting height of the crane boom, the need to use signalmen, sound and light alarms, etc.

b) when working at existing substations of the security zone of power lines, combining different types of work on one site - mandatory execution of work permits, which stipulate special safety measures, and appoint a person responsible for the safe conduct of these works;

c) compliance with the minimum permissible distances between fire-hazardous installations, materials and structures, provision of fire extinguishing means (water, sand, fire equipment, etc.); entrances must be provided and evacuation routes for people and equipment must be provided in the event of a fire;

d) systematic monitoring of gas contamination, radiation levels, temperature, humidity and other conditions in places where the level of these indicators may exceed permissible standards, providing workers performing work in such places with appropriate protective clothing and personal protective equipment (respirators, gas masks, safety glasses and so on.);

e) proper control over the condition of vessels under pressure, control in places where the formation of explosive mixtures is possible; Prohibition in these places of welding, lighting open fires, smoking, and performing operations that may cause sparks.

Projects for work near power lines, underground and overhead communications must be coordinated with the enterprise operating them.

4.16. Development of working drawings and diagrams for the installation of technical dispatch equipment

For particularly complex substations, as part of the work project, if necessary, the following should be developed:

a) organizational diagram of construction dispatch and communication;

b) working drawings and diagrams for the installation of technical means of dispatching and communication.

4.17. Explanatory note

As part of the work project, the following text material should be provided to justify and explain the design decisions made:

a) selection and justification of work methods with calculation of economic efficiency;

b) requirements for work in winter;

c) solutions for the installation of temporary lighting of the construction site and workplaces;

d) requirements for the quality of work;

e) calculation of the need for inventory buildings and structures, storage and consolidation-assembly sites;

f) decisions on ensuring sanitary standards and safety regulations, fire and explosion safety;

j) environmental protection measures;

h) technical and economic indicators of the decisions made.

Justification of work methods should include:

a) selection of main machines and mechanisms;

b) method of fastening the slopes of pits and trenches;

c) water reduction and drainage;

d) scaffolding when working at height;

e) the need for fastening structures.

A technical and economic comparison of the options under consideration must be carried out in accordance with the requirements of section.

Requirements for work in winter should reflect:

a) specific requirements for materials, structures, work technology when working in winter conditions;

b) methods of maintaining a positive temperature in the work area, insulating structures or other methods to prevent freezing of structures;

c) methods of protecting bases from freezing;

d) methods for developing frozen soil;

e) methods of heating with steam or electric current and specific safety requirements when performing these works;

f) specific methods of quality control of work performed in winter conditions.

For temporary lighting of the construction site and workplaces, the following must be provided:

a) description of the site lighting system, installation locations of floodlight towers and power supplies;

b) requirements for lighting of bulk storage areas, transport routes and individual workplaces.

As part of the PPR, measures are being developed to protect the environment during construction and installation work and for land reclamation upon completion of construction work. The work project must include the following technical and economic indicators:

a) duration of construction according to the network schedule or calendar plan;

b) reducing the cost of construction work - according to a comparative table for calculating economic efficiency, compiled in accordance with the normative;

c) reduction of labor costs - according to the comparative table for calculating economic efficiency, compiled in accordance with the subsection in comparison with the normative ones;

d) specific labor costs:

per unit volume of the structure as a whole;

per unit volume of work performed;

e) output in kind and in monetary terms per worker;

f) expected economic effect from implementation.

4.18. Documentation for monitoring and assessing the quality of work

4.18.1. To monitor and evaluate the quality of work, a comprehensive quality management system for construction and installation works (KSUK SMR) and an enterprise standard (STP) are being developed. The PPR should contain references to the relevant KSUC SMR and STP. In the absence of such, individual operational control schemes should be developed as part of the PPR.

4.18.2. Operational control schemes must be developed in accordance with the “Recommendations for the implementation of operational quality control of construction and installation works” of the TsNIIOMTP Gosstroy of the USSR, agreed upon with the department of technical regulation and standardization of the Gosstroy of the USSR, and must contain:

a) design sketches indicating permissible deviations according to SNiP (if necessary);

b) main characteristics of the quality of materials and structures (strength, frost resistance, fire resistance);

c) a list of operations, the quality of which must be checked by the workman or foreman;

d) data on the composition of the control established on the basis of the requirements of regulatory documents for construction and working drawings, indicating the need to check the reinforcement and the location of the reinforcing bars, compliance of the actual dimensions with the design ones, etc.;

e) instructions on the method of quality control of performed operations (visually, instrumentally) with a list of measuring instruments and instruments;

c) timing of control;

g) a list of technological operations controlled with the participation of the construction laboratory and geodetic service;

h) a list of open works that are subject to inspection by a representative of the customer’s technical supervision with the drawing up of a report.

4.18.3. When developing a scheme for operational control of the construction of substations of all degrees of complexity, it is recommended to use “Tolerances and deviations for the installation of individual elements of substations” developed by the Elektrostroypodstantsiya trust.

4.19. Measures for organizing work using the brigade cost calculation method

As part of the PPR for work performed using the brigade cost calculation method, the following should be developed for each brigade:

a) calculation of labor costs and wages;

b) a calendar schedule for the production of work, combined with schedules for the need for construction machinery and the movement of labor, broken down by profession;

c) schedule of requirements for structures, products, parts and materials (indicating size, brand or other specification data);

d) schedule of vehicle needs;

e) standard set according to the adopted technology, linking the volume of work and the timing of their completion.

The development of self-supporting documentation and measures is carried out directly by the construction organization with the involvement of design and technological institutes.

4.20. Passport for the work project for particularly complex substations

The work project passport, drawn up in accordance with clause, must contain:

a) the name of the organization, the general designer who developed the PPR;

b) a brief description of the facility being constructed;

c) basic installation mechanisms;

d) scheme for unfastening mechanisms;

e) volume of construction and installation work;

f) technical and economic indicators of PPR.

5. TECHNICAL AND ECONOMIC ASSESSMENT OF THE WORK PROJECT

5.1. Composition of the technical and economic assessment of the PPR

The technical and economic assessment of the work project consists of:

a) technical and economic comparison of possible options for technological schemes for the production of work to select the optimal one;

b) economic assessment of the chosen option.

5.2. Technical and economic comparison of options

5.2.1. A technical and economic comparison of possible options and the choice of option for detailed development and implementation should be carried out at a minimum of given costs, determined in accordance with " " using the formula:

Where P- reduced costs for the option (RUB);

WITH- cost of construction and installation work (RUB);

Yong- standard capital investment efficiency ratio equal to 0.12.

TO- capital investments in fixed production assets of a construction organization (rub.).

5.2.2. When calculating the cost options for construction and installation work, the following indicators are taken into account:

a) the cost of materials at their estimated prices;

b) the basic wages of workers - according to the labor intensity of the work, determined by the calculation of labor costs and the daily tariff rate for the average type of work;

c) operation of machines - according to the required number of machine shifts of construction machines and the cost of a machine shift, determined according to price list No. 2 with an adjustment factor of 1.2, taking into account the transition to a five-day work week;

d) overhead costs depending on the basic salary of workers (0.16 rubles per 1 ruble of basic salary);

e) overhead costs, depending on the labor intensity of the work (0.6 rubles per person day);

f) overhead costs depending on the duration of work (conditionally fixed overhead costs, which in the option with a longer duration are half of the overhead costs determined from direct costs, in accordance with the accepted rate of overhead costs according to the estimate; in the option with a shorter duration, conditionally fixed overheads costs decrease in proportion to the decrease in construction duration).

5.2.3. The calculation of capital investments according to the options includes the costs of the mechanization equipment used on the basis of their book value and the time of their operation under the PPR, as a share of the standard annual time of their operation.

5.3. Economic assessment of the selected option

5.3.1. An economic assessment of the selected work project option should be made by comparing the corresponding design and estimate indicators. This comparison shows a possible reduction in the estimated cost from the implementation of work production methods developed in the PPR.

The main indicators for comparison are the labor intensity and cost of operating the machines.

5.3.2. Estimated indicators are determined according to the working estimate, and in its absence, according to the “Unified Regional Unit Prices” (EREP) or the “Enlarged Construction Standards” (USN).

When determining the estimated cost according to the simplified tax system, the cost of all work included in the simplified tax system is multiplied by a coefficient equal to the relative cost of the types of work considered in the PPR of the total estimated cost according to the simplified tax system. This coefficient can be approximately determined from working estimates, financial estimates and project planning plans for similar objects and types of work.

5.3.3. Indicators for PPR and estimates are summarized in a comparative table, in which for each type of work the following is given:

a) estimated cost;

b) cost of operating machines in rubles:

at estimated unit prices -;

according to the project - ;

c) labor intensity in man-days:

at estimated unit prices - D cm;

according to the project - D pr ".

To simplify the calculation and due to the extremely insignificant impact on the final result, savings in overhead costs for drivers' salaries are not taken into account.

5.3.4. Calculation amounting to E n ´ (TO 1 – TO 2), is carried out according to the methodology set out in the "Instructions for determining the economic efficiency of capital investments in construction", while the estimated cost of fixed production assets is determined by the corresponding tables of Part IV of SNiP shown in EREP (the name of the machines, the number of machine shifts, their work and estimate of their operation at estimated prices).

In order to significantly simplify calculations, instead of formula (), the following approximate formula can be used:

Where q- coefficient taking into account the influence of the component E n (TO 1 - TO 2) on the final result obtained by analyzing the statistical data of a number of calculations performed.

When value E n= 0.12 can be acceptedq= 1.2 for the economic assessment of methods for the installation of building structures of converting devices (CU) buildings of 1500 kV substations with heavy tower cranes KB-1000 and heavy-duty crawler cranes such as MKG-100, DEK-50.

For other types of work at sites, PS should be adoptedq = 1,04.

The coefficient should be clarified based on calculations performed by the developers for similar work.

5.3.5. When compiling a table, one should strictly observe the comparability of single-digit indicators, correctly link estimate and production standards to local construction conditions, taking into account working conditions, the area where the construction site is located, the duration of the working day established on it, etc. in accordance with SNiP, Part IV, Vol. I and instructions in the technical part of the relevant standards. The cost of machine shifts should be taken at estimated prices.

5.3.6. As part of the PPR, it is necessary to take into account the work at the consolidation-assembly and warehouse sites (with the exception of unloading of incoming goods), as well as the costs of transporting parts, structures and materials from the on-site warehouse to the workplace.

The cost of on-site transportation by road and rail should be taken according to the calculations of mechanical columns and trusts.

The cost of transportation by rail is determined in the PS project based on calculations for specific or similar construction conditions.

5.3.7. If design decisions for the production of work provide for savings in materials (replacement of materials, use of reusable inventory devices, changes in the delivery scheme, etc.), it should be taken into account in the calculation of economic efficiency.

5.3.8. If the compared options differ in construction duration, it is necessary to take into account the effect of the influence of the time factor in accordance with the “Instructions for determining the economic efficiency of capital investments in construction.”

5.3.9. The estimated economic effect is agreed upon by the customer of the project in accordance with the established procedure as an integral part of it.

6. IMPLEMENTATION OF THE WORK PROJECT

6.1. In the process of implementing PPR, the actual effect of implementing PPR is taken into account in comparison with the calculated one. This work can be carried out by its developer together with the construction organization in the manner of designer supervision.

6.2. Payment for this work is made under an agreement with the general contractor (technical assistance) or with the general designer (author's supervision).

6.3. When conducting designer's supervision, it is necessary to take into account changes that arise during construction in comparison with the conditions provided for by the work project by making appropriate changes to the drawings.

6.4. The PPR developer must analyze the reasons for the resulting discrepancies between the calculated and actual effect and, together with the construction organization, strive to use the discovered reserves to increase labor productivity and reduce construction costs.

6.5. The actual economic effect is an indicator for a construction organization. It can be taken into account for the entire volume of work or for part of this volume performed during the reporting period. The share of the design organization-developer of the PPR in the actual economic effect is assumed to be 30%.

6.6. The actual economic effect should be determined according to the data of the construction organization and, if necessary, the NIS "Energostroytruda".

The work of construction machines should be accounted for according to the time actually worked, labor costs - according to the crew orders issued for these types of work, transportation costs from the on-site warehouse to the place of work - according to accounting documents.

6.7. In the absence of construction site records of the data specified in paragraph, it is allowed to determine the actual economic effect as a share of the actual economic effect received by the construction site for the period under review, in proportion to the cost of the work performed.

6.8. The estimated and actual economic effect for the reporting period is formalized by a bilateral act, by the developer of the PPR and the construction organization.

6.9. Reports on the implementation of PPR developed by institutes of technology must be sent quarterly to the technical departments of the respective institutes.