CN112348393A - Power transmission and transformation project cost technical and economic index analysis method - Google Patents
Power transmission and transformation project cost technical and economic index analysis method Download PDFInfo
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Abstract
The invention relates to the technical field of construction cost of power transmission and transformation projects, which is characterized in that a power transmission and transformation project construction cost index analysis system is composed of a power transmission and transformation project construction cost index system and a line project construction cost index analysis, the power transmission and transformation project construction cost index system is composed of an installation project cost related index analysis, a building project cost related index analysis, an equipment cost related index analysis and other cost related index analyses, and the line project construction cost index analysis is composed of an earth-rock square project, a foundation project, a pole tower project, a stringing project and an accessory project. The invention has the beneficial effects that: through researching historical power transmission and transformation project data and total cost analysis indexes, a power transmission and transformation project cost index system is constructed, cost key indexes are identified and mined, weight, trend and abnormal change analysis of the cost indexes is carried out, and a power transmission and transformation project cost index analysis and evaluation system is constructed. Finally, a key index library for cost analysis of the power transmission and transformation project is formed, and investment decision and cost analysis work of the power transmission and transformation project are assisted.
Description
Technical Field
The invention relates to the technical field of construction cost of power transmission and transformation projects, in particular to a method for analyzing the technical and economic indexes of the construction cost of the power transmission and transformation projects.
Background
In the existing cost management working mode, cost data such as project estimation, approximate calculation, bid inviting, process settlement, completion settlement and the like run through the whole process of engineering construction and are dispersed in different power enterprise departments, mainly comprise units such as provincial company development planning department, design unit, material unit, construction department, financial department and the like, centralized and unified management on the data cannot be formed, and when cost analysis and evaluation are carried out on the project or investment decision related work is carried out in an auxiliary mode, the collection of the cost data of each stage of the project is difficult, so that technical staff often overload work is caused.
At present, the processing means of the power grid engineering cost information still stays at the level of traditional manual statistics collection and analysis, on one hand, the subjective experience dependency of the engineering cost scheme compilation quality is high, and the quality levels are different; on one hand, the statistical rules and the variation trends of the engineering quantity, the price and the cost reflected by massive electric power construction engineering cost data are difficult to find and utilize, effective investment control is carried out at each stage of engineering construction, and perfect combination of technology and economy is realized.
Foreign countries, the countries with advanced technology level in the aspect of engineering cost technology and economic research are developed countries in Europe and America, such as the United kingdom, Norway, the United states, Japan and the like. In the field of power grid engineering construction, a plurality of data analysis and statistical structures of the countries relatively deeply analyze and research power grid engineering technology and economy, so as to seek the optimal combination of technical factors and economic factors, and how to obtain expected output with minimum input or obtain maximum output with equal input, and the like, and finally, the formed indexes fully react and measure the ratio of input and output of the engineering construction. However, such research methods deviate from the judgment standards of the technical and economic effects to a certain extent, and only the best combination is sought, but the economic effect is good or bad, and the technical means is advanced or laggard, so that the judgment is not always made.
At home, the research on technical and economic indexes related to power transmission and transformation projects is still in the initial stage, and the research degree is not deep enough. Currently, the major units for research and application in the world network include national network institute, Zhejiang institute, Sichuan institute, etc.
At present, relevant technical and economic indexes of power transmission and transformation projects in engineering stages such as development, initial setting, construction and completion need to be improved in system integrity, a unified platform is lack of technology and economic indexes of a whole quantity, a data island phenomenon is common, data sources are not unified, the same technology and economic index data are repeatedly quoted, and the development of the whole technology and work of the power transmission and transformation projects is hindered to a certain extent.
Therefore, a set of technical and economic index system of the power transmission and transformation project is established, a technical and economic index sample library is established, the quality improvement and the efficiency improvement of technical works are facilitated, and a good data base is laid for developing the standardized rolling revision and application of technical indexes.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a method for analyzing the technical and economic indexes of the construction cost of the power transmission and transformation project, and solves the problems in the background art.
Technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a power transmission and transformation project cost technical and economic index analysis method comprises a power transmission and transformation project cost index analysis system (1), and is characterized in that: the power transmission and transformation project cost index analysis system (1) is composed of a power transmission and transformation project cost index system (2) and a line project cost index analysis (3), the power transmission and transformation project cost index system (2) is composed of an installation project cost related index analysis (4), a building project cost related index analysis (5), an equipment cost related index analysis (6) and other cost related index analyses (7), the installation project cost related index analysis (4) is composed of a main transformer system A (8), a power distribution device A (9), a reactive compensation A (10), a station power utilization system A (11), a cable and grounding A (12) and a communication and telemechanical system A (13), and the main transformer system A (8): according to the analysis of historical data of the transformer substation, the generation cost of a main transformer system of the electrical installation project of the transformer substation mainly comprises the installation cost of main transformer equipment and the installation cost of related devices, such as a lightning arrester, a bus, an insulator, a sleeve and the like; power distribution device a (9): according to the historical data analysis of the transformer substation, the cost of the power distribution device of the electrical installation project of the transformer substation mainly comprises a circuit breaker, a power distribution device type, an open type combined electrical appliance, a lightning arrester, an isolating switch, a current transformer, a voltage transformer, a high-voltage complete set of power distribution device, a bus, a wall bushing, a post insulator, a suspension insulator, an iron component manufacturing installation and a protection network and the like; reactive compensation a (10): according to the analysis of historical data of the transformer substation, the reactive compensation generation cost of the electrical installation project of the transformer substation mainly comprises a high-voltage reactor, a low-voltage capacitor, an isolating switch and the like; station power system a (11): according to the analysis of historical data of the transformer substation, the cost of the power utilization system of the electrical installation engineering station of the transformer substation engineering mainly comprises a transformer for the station, a power distribution device for the station, illumination of a station area and the like; cable and ground a (12): according to the historical data analysis of the transformer substation, the cost for electrical installation engineering cables and grounding of the transformer substation engineering mainly comprises power cables, control cables, cable auxiliary equipment, cable fire prevention, grounding, chemical resistance reducing agents and the like; communication and telecontrol system a (13): according to the analysis of historical data of the transformer substation, the cost of the electrical installation project communication and telemechanical system of the transformer substation mainly comprises a communication system, a telemechanical and charging system and the like. The building engineering cost related index analysis (5) is composed of a main production building (14), an outdoor power distribution device building (15), a station area water supply system (16), a station area building (17), a fire fighting system (18), a special structure (19), station area floor treatment (20), foundation treatment (21), an off-station road (22), an off-station power supply (23), an off-station water source (24) and an off-station communication line (25), and specifically, the main production building (14): according to the analysis of historical data of the transformer substation, the main production and construction cost of the transformer substation engineering and construction engineering mainly comprises a main control building, a relay room, a power distribution device room and the like; outdoor power distribution equipment building (15): according to the historical data analysis of the transformer substation, the cost of the outdoor power distribution device of the engineering and construction engineering of the transformer substation mainly comprises a main transformer system, a high-voltage reactor system, a framework and equipment foundation, a series compensation system, a low-voltage capacitor, a low-voltage reactor, a static reactive power compensation device, a transformer system for the station, a barrier, a terrace, a ground seal of a power distribution device area, a lightning rod tower, a cable channel and the like; station water supply system (16): according to the analysis of historical data of the transformer substation, the station water supply cost of the engineering and construction engineering of the transformer substation mainly comprises a station water supply pipeline, water supply system equipment, a comprehensive water pump room, a reservoir and the like; site-specific building (17): according to the analysis of historical data of the transformer substation, the station regional building cost of the transformer substation engineering construction project mainly comprises the steps of site leveling, station road and square, station drainage, enclosing wall, gate and the like; fire protection system (18): according to the analysis of historical data of the transformer substation, the generation cost of the fire-fighting system of the engineering and construction engineering of the transformer substation mainly comprises a fire-fighting water pump room, a deluge valve chamber, station fire-fighting pipelines, fire-fighting equipment, a special fire-fighting system, a fire-fighting water pool and the like; special structure (19): according to the analysis of historical data of the transformer substation, the cost of the special structures of the engineering and construction engineering of the transformer substation mainly comprises retaining walls, slope protection, flood control drainage ditches and the like; station terrace treatment (20): according to the analysis of historical data of the transformer substation, the terrace treatment cost of the engineering and construction engineering station area of the transformer substation mainly comprises site cost and the like; foundation treatment (21): according to the analysis of historical data of the transformer substation, the generation cost of the foundation treatment of the engineering and construction engineering of the transformer substation mainly comprises the foundation treatment and the like; off-station road (22): according to the analysis of historical data of the transformer substation, the cost of the off-station road of the engineering and construction engineering of the transformer substation mainly comprises the off-station road and the like; an external power supply (23): according to the analysis of historical data of the transformer substation, the generation cost of the off-station power supply of the engineering and construction engineering of the transformer substation mainly comprises the off-station power supply and the like; off-site water source (24): according to the analysis of historical data of the transformer substation, the cost of the off-station water source of the engineering and construction engineering of the transformer substation mainly comprises the off-station water source and the like; out-of-station communication line (25): according to the analysis of historical data of the transformer substation, the generation cost of the off-station communication line of the engineering construction engineering of the transformer substation mainly comprises the off-station communication line and the like. The equipment cost related index analysis (6) is composed of a main transformer system B (26), a power distribution device B (27), a reactive compensation B (28), a station power utilization system B (29), a cable and grounding system B (30), a communication and telecontrol system B (31) and an auxiliary production system (32), and specifically, the main transformer system B (26): according to the analysis of historical data of the transformer substation, the cost of engineering equipment of the transformer substation for the main transformer system mainly comprises main transformer system equipment and the like; power distribution device B (27): according to the analysis of historical data of the transformer substation, the cost of the transformer substation engineering equipment cost power distribution device mainly comprises power distribution device equipment and related technical economic parameter indexes thereof; reactive compensation B (28): according to the analysis of historical data of the transformer substation, the reactive compensation generation cost of the engineering equipment cost of the transformer substation mainly comprises reactive compensation equipment and relevant technical economic parameter indexes thereof; station power system B (29): according to the analysis of historical data of the transformer substation, the cost of a station electricity utilization system of the transformer substation engineering equipment mainly comprises station electricity utilization system equipment and the like; cable and ground B (30): according to the analysis of historical data of the transformer substation, the cost of the engineering equipment of the transformer substation for cables and the cost of grounding generation mainly comprise cables, grounding equipment and the like; communication and telecontrol system B (31): according to the analysis of historical data of the transformer substation, the cost communication of the engineering equipment of the transformer substation and the cost generation of a telemechanical system mainly comprise communication and telemechanical system equipment and the like; auxiliary production system (32): according to the analysis of historical data of the transformer substation, the cost of the transformer substation engineering equipment cost auxiliary production system mainly comprises auxiliary production system equipment and the like. The other cost related index analysis (7) consists of construction site acquisition and cleaning cost (33), project construction management cost (34), project construction technical service cost (35) and subsystem debugging and whole set of starting trial operation cost (36), and specifically, the construction site acquisition and cleaning cost (33): according to the analysis of historical data of the transformer substation, the generation cost of other expense construction sites of the transformer substation project and the clearing expense mainly comprises the cost of site investigation, land investigation compensation and the like; project construction management fee (34): according to the analysis of historical data of the transformer substation, the cost of other project construction management fees of the transformer substation project mainly comprises the management cost during the project construction period; project construction technical service fee (35): according to the analysis of historical data of the transformer substation, the cost of construction technology service of other cost projects of the transformer substation mainly comprises the expenses of investigation, design cost, supervision cost and the like; subsystem commissioning and full set of start-up commissioning fees (36): and (4) according to the historical data analysis of the transformer substation, the cost of system debugging, the whole set of starting trial run and the like in other cost of the transformer substation project. The line engineering cost index analysis (3) is composed of an earth and stone engineering (37), a foundation engineering (38), a pole tower engineering (39), a stringing engineering (40) and an accessory engineering (41), and specifically, the earth and stone engineering (37): according to the analysis of the historical data of the overhead line engineering, the cost of the overhead line engineering earth-rock engineering mainly comprises the cost of a foundation pit, grounding and the like; foundation engineering (38): according to the analysis of the historical data of the overhead line engineering, the cost of the overhead line engineering foundation engineering mainly comprises the cost of various types of foundations, concrete masonry and the like; pole tower engineering (39): according to the analysis of the historical data of the overhead line engineering, the cost of the tower engineering of the overhead line engineering mainly comprises the cost of tower erection and the like; stringing engineering (40): according to the analysis of the historical data of the overhead line engineering, the overhead line engineering cost mainly comprises the costs of the construction site transportation of overhead line engineering materials, the erection of ground wires, the spanning erection of the ground wires, other overhead line engineering and the like; attachment engineering (41): according to the analysis of the historical data of the overhead line engineering, the overhead line engineering accessory engineering cost mainly comprises the costs of accessory installation engineering material construction site transportation, insulator string and hardware fitting installation and the like.
Advantageous effects
The invention provides a method for analyzing the technical and economic indexes of the construction cost of a power transmission and transformation project. The method has the following beneficial effects:
and constructing a regional power transmission and transformation project cost index system by deeply researching the regional historical power transmission and transformation project data and the total cost analysis index. By identifying and mining the key cost indexes, carrying out weight, trend and transaction analysis of the cost indexes and constructing a regional power transmission and transformation project cost index analysis and evaluation system. Finally, a key index library for analyzing the construction cost of the regional power transmission and transformation project is formed, and investment decision and construction cost analysis work of the regional power transmission and transformation project is assisted to be carried out.
The method is characterized in that a national energy bureau cost analysis index is further combed based on analyzing a national grid company cost analysis basic data collection table and a national grid company cost analysis index system, and different levels of indexes are collected and arranged by a cluster analysis method according to the actual needs of cost analysis work of regional and related regional companies to form a regional power transmission project cost index system. The qualitative index is judged by a service expert to give trial application suggestions manually, and the quantitative index continuously participates in subsequent contribution degree and further weight and transaction analysis and calculation.
The method is characterized in that a regional power transmission and transformation project cost index system is constructed as a basis, a regional power transmission and transformation project cost index library is formed by combining historical data of 2010 and the current, and a basic data source is provided for subsequent technical research in a rolling updating mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a power transmission and transformation project cost index analysis system; 2. a power transmission and transformation project cost index system; 3. analyzing the cost index of the line engineering; 4. analyzing related indexes of installation engineering cost; 5. analyzing related indexes of the construction engineering cost; 6. analyzing related indexes of equipment cost; 7. analyzing other cost related indexes; 8. a main transformer system A; 9. a power distribution device A; 10. reactive compensation A; 11. a station power utilization system A; 12. a cable and ground A; 13. a communication and telemechanical system A; 14. mainly producing buildings; 15. an outdoor power distribution equipment building; 16. a station area water supply system; 17. a site-based building; 18. a fire protection system; 19. a special structure; 20. treating the terrace of the station area; 21. treating a foundation; 22. an off-site road; 23. an off-station power supply; 24. an off-site water source; 25. an out-of-station communication line; 26. a main transformer system B; 27. a power distribution device B; 28. reactive compensation B; 29. a station power utilization system B; 30. cable and ground B; 31. a communication and telemechanical system B; 32. an auxiliary production system; 33. levying and clearing fees for construction sites; 34. project construction management fees; 35. project construction technical service fee; 36. debugging the subsystem and starting the whole set of trial operation cost; 37. earthwork engineering; 38. basic engineering; 39. pole tower engineering; 40. stringing engineering; 41. and (5) accessory engineering.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, as shown in fig. 1, a method for analyzing a power transmission and transformation project cost technical and economic indicator includes a power transmission and transformation project cost indicator analysis system (1), and is characterized in that: the power transmission and transformation project cost index analysis system (1) is composed of a power transmission and transformation project cost index system (2) and a line project cost index analysis (3), the power transmission and transformation project cost index system (2) is composed of an installation project cost related index analysis (4), a building project cost related index analysis (5), an equipment cost related index analysis (6) and other cost related index analyses (7), the installation project cost related index analysis (4) is composed of a main transformer system A (8), a power distribution device A (9), a reactive compensation A (10), a station power utilization system A (11), a cable and grounding A (12) and a communication and telemechanical system A (13), and the main transformer system A (8): according to the analysis of historical data of the transformer substation, the generation cost of a main transformer system of the electrical installation project of the transformer substation mainly comprises the installation cost of main transformer equipment and the installation cost of related devices, such as a lightning arrester, a bus, an insulator, a sleeve and the like; power distribution device a (9): according to the historical data analysis of the transformer substation, the cost of the power distribution device of the electrical installation project of the transformer substation mainly comprises a circuit breaker, a power distribution device type, an open type combined electrical appliance, a lightning arrester, an isolating switch, a current transformer, a voltage transformer, a high-voltage complete set of power distribution device, a bus, a wall bushing, a post insulator, a suspension insulator, an iron component manufacturing installation and a protection network and the like; reactive compensation a (10): according to the analysis of historical data of the transformer substation, the reactive compensation generation cost of the electrical installation project of the transformer substation mainly comprises a high-voltage reactor, a low-voltage capacitor, an isolating switch and the like; station power system a (11): according to the analysis of historical data of the transformer substation, the cost of the power utilization system of the electrical installation engineering station of the transformer substation engineering mainly comprises a transformer for the station, a power distribution device for the station, illumination of a station area and the like; cable and ground a (12): according to the historical data analysis of the transformer substation, the cost for electrical installation engineering cables and grounding of the transformer substation engineering mainly comprises power cables, control cables, cable auxiliary equipment, cable fire prevention, grounding, chemical resistance reducing agents and the like; communication and telecontrol system a (13): according to the analysis of historical data of the transformer substation, the cost of the electrical installation project communication and telemechanical system of the transformer substation mainly comprises a communication system, a telemechanical and charging system and the like. The building engineering cost related index analysis (5) is composed of a main production building (14), an outdoor power distribution device building (15), a station area water supply system (16), a station area building (17), a fire fighting system (18), a special structure (19), station area floor treatment (20), foundation treatment (21), an off-station road (22), an off-station power supply (23), an off-station water source (24) and an off-station communication line (25), and specifically, the main production building (14): according to the analysis of historical data of the transformer substation, the main production and construction cost of the transformer substation engineering and construction engineering mainly comprises a main control building, a relay room, a power distribution device room and the like; outdoor power distribution equipment building (15): according to the historical data analysis of the transformer substation, the cost of the outdoor power distribution device of the engineering and construction engineering of the transformer substation mainly comprises a main transformer system, a high-voltage reactor system, a framework and equipment foundation, a series compensation system, a low-voltage capacitor, a low-voltage reactor, a static reactive power compensation device, a transformer system for the station, a barrier, a terrace, a ground seal of a power distribution device area, a lightning rod tower, a cable channel and the like; station water supply system (16): according to the analysis of historical data of the transformer substation, the station water supply cost of the engineering and construction engineering of the transformer substation mainly comprises a station water supply pipeline, water supply system equipment, a comprehensive water pump room, a reservoir and the like; site-specific building (17): according to the analysis of historical data of the transformer substation, the station regional building cost of the transformer substation engineering construction project mainly comprises the steps of site leveling, station road and square, station drainage, enclosing wall, gate and the like; fire protection system (18): according to the analysis of historical data of the transformer substation, the generation cost of the fire-fighting system of the engineering and construction engineering of the transformer substation mainly comprises a fire-fighting water pump room, a deluge valve chamber, station fire-fighting pipelines, fire-fighting equipment, a special fire-fighting system, a fire-fighting water pool and the like; special structure (19): according to the analysis of historical data of the transformer substation, the cost of the special structures of the engineering and construction engineering of the transformer substation mainly comprises retaining walls, slope protection, flood control drainage ditches and the like; station terrace treatment (20): according to the analysis of historical data of the transformer substation, the terrace treatment cost of the engineering and construction engineering station area of the transformer substation mainly comprises site cost and the like; foundation treatment (21): according to the analysis of historical data of the transformer substation, the generation cost of the foundation treatment of the engineering and construction engineering of the transformer substation mainly comprises the foundation treatment and the like; off-station road (22): according to the analysis of historical data of the transformer substation, the cost of the off-station road of the engineering and construction engineering of the transformer substation mainly comprises the off-station road and the like; an external power supply (23): according to the analysis of historical data of the transformer substation, the generation cost of the off-station power supply of the engineering and construction engineering of the transformer substation mainly comprises the off-station power supply and the like; off-site water source (24): according to the analysis of historical data of the transformer substation, the cost of the off-station water source of the engineering and construction engineering of the transformer substation mainly comprises the off-station water source and the like; out-of-station communication line (25): according to the analysis of historical data of the transformer substation, the generation cost of the off-station communication line of the engineering construction engineering of the transformer substation mainly comprises the off-station communication line and the like. The equipment cost related index analysis (6) is composed of a main transformer system B (26), a power distribution device B (27), a reactive compensation B (28), a station power utilization system B (29), a cable and grounding system B (30), a communication and telecontrol system B (31) and an auxiliary production system (32), and specifically, the main transformer system B (26): according to the analysis of historical data of the transformer substation, the cost of engineering equipment of the transformer substation for the main transformer system mainly comprises main transformer system equipment and the like; power distribution device B (27): according to the analysis of historical data of the transformer substation, the cost of the transformer substation engineering equipment cost power distribution device mainly comprises power distribution device equipment and related technical economic parameter indexes thereof; reactive compensation B (28): according to the analysis of historical data of the transformer substation, the reactive compensation generation cost of the engineering equipment cost of the transformer substation mainly comprises reactive compensation equipment and relevant technical economic parameter indexes thereof; station power system B (29): according to the analysis of historical data of the transformer substation, the cost of a station electricity utilization system of the transformer substation engineering equipment mainly comprises station electricity utilization system equipment and the like; cable and ground B (30): according to the analysis of historical data of the transformer substation, the cost of the engineering equipment of the transformer substation for cables and the cost of grounding generation mainly comprise cables, grounding equipment and the like; communication and telecontrol system B (31): according to the analysis of historical data of the transformer substation, the cost communication of the engineering equipment of the transformer substation and the cost generation of a telemechanical system mainly comprise communication and telemechanical system equipment and the like; auxiliary production system (32): according to the analysis of historical data of the transformer substation, the cost of the transformer substation engineering equipment cost auxiliary production system mainly comprises auxiliary production system equipment and the like. The other cost related index analysis (7) consists of construction site acquisition and cleaning cost (33), project construction management cost (34), project construction technical service cost (35) and subsystem debugging and whole set of starting trial operation cost (36), and specifically, the construction site acquisition and cleaning cost (33): according to the analysis of historical data of the transformer substation, the generation cost of other expense construction sites of the transformer substation project and the clearing expense mainly comprises the cost of site investigation, land investigation compensation and the like; project construction management fee (34): according to the analysis of historical data of the transformer substation, the cost of other project construction management fees of the transformer substation project mainly comprises the management cost during the project construction period; project construction technical service fee (35): according to the analysis of historical data of the transformer substation, the cost of construction technology service of other cost projects of the transformer substation mainly comprises the expenses of investigation, design cost, supervision cost and the like; subsystem commissioning and full set of start-up commissioning fees (36): and (4) according to the historical data analysis of the transformer substation, the cost of system debugging, the whole set of starting trial run and the like in other cost of the transformer substation project. The line engineering cost index analysis (3) is composed of an earth and stone engineering (37), a foundation engineering (38), a pole tower engineering (39), a stringing engineering (40) and an accessory engineering (41), and specifically, the earth and stone engineering (37): according to the analysis of the historical data of the overhead line engineering, the cost of the overhead line engineering earth-rock engineering mainly comprises the cost of a foundation pit, grounding and the like; foundation engineering (38): according to the analysis of the historical data of the overhead line engineering, the cost of the overhead line engineering foundation engineering mainly comprises the cost of various types of foundations, concrete masonry and the like; pole tower engineering (39): according to the analysis of the historical data of the overhead line engineering, the cost of the tower engineering of the overhead line engineering mainly comprises the cost of tower erection and the like; stringing engineering (40): according to the analysis of the historical data of the overhead line engineering, the overhead line engineering cost mainly comprises the costs of the construction site transportation of overhead line engineering materials, the erection of ground wires, the spanning erection of the ground wires, other overhead line engineering and the like; attachment engineering (41): according to the analysis of the historical data of the overhead line engineering, the overhead line engineering accessory engineering cost mainly comprises the costs of accessory installation engineering material construction site transportation, insulator string and hardware fitting installation and the like.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A power transmission and transformation project cost technical and economic index analysis method comprises a power transmission and transformation project cost index analysis system (1), and is characterized in that: the power transmission and transformation project cost index analysis system (1) is composed of a power transmission and transformation project cost index system (2) and a line project cost index analysis system (3), the power transmission and transformation project cost index system (2) is composed of an installation project cost related index analysis (4), a building project cost related index analysis (5), an equipment cost related index analysis (6) and other cost related index analyses (7), the installation project cost related index analysis (4) is composed of a main transformer system A (8), a power distribution device A (9), a reactive compensation A (10), a station power utilization system A (11), a cable and grounding A (12) and a communication and telemechanical system A (13), and the building project cost related index analysis (5) is composed of a main production building (14), an outdoor power distribution device building (15), a station area water supply system (16), The system comprises a station regional building (17), a fire fighting system (18), a special structure (19), station terrace treatment (20), foundation treatment (21), an off-station road (22), an off-station power supply (23), an off-station water source (24) and an off-station communication line (25), wherein the equipment cost related index analysis (6) comprises a main transformer system B (26), a power distribution device B (27), a reactive compensation B (28), a station power utilization system B (29), a cable and grounding system B (30), a communication and telemechanical system B (31) and an auxiliary production system (32), the other cost related index analysis (7) comprises construction site expropriation and cleaning cost (33), project construction management cost (34), project construction technical service cost (35) and subsystem debugging and whole set of commissioning cost (36), and the line cost index analysis (3) comprises an earth-stone project (37), The system comprises a foundation project (38), a tower project (39), a stringing project (40) and an accessory project (41).
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