(1) equipment unpacking and inventory: before the delivery of equipment on-site installation, the general contractor is responsible for the owner (or his representative) or supplier **** with the equipment packing list and equipment and technical documents for the installation of machinery and equipment one by one, registration and inspection, the important parts and components need to be checked according to the quality standards of inspection and acceptance, inspection, both sides Signature authentication, handover.
(2) foundation line (equipment positioning): according to the equipment layout and the relevant building axis or edge line and elevation line, delineate the installation baseline. Connected to each other, articulation or arrangement of equipment, should be put out *** with the installation of the baseline; if necessary, should be buried general or permanent standard plate or reference point; set up a specific base position line and base elevation line.
(3) equipment foundation inspection:
● foundation construction unit should provide equipment foundation quality certificate: mainly check its concrete ratio, concrete maintenance and concrete strength in accordance with design requirements.
●If there is any doubt about the strength of the equipment foundation, the strength of the foundation can be re-tested by rebound meter or steel ball impact method.
●Examination of the appearance of the foundation: mainly to see whether the surface of the foundation has honeycomb, pitting and other quality defects.
●The position of the foundation, geometric measurement and inspection: the main items of inspection are the coordinate position of the foundation, the elevation of the different planes, the plane dimensions, the plane dimensions, the dimensions of the convex plane, the dimensions of the concave hole, the level of the plane, the degree of plumbing of the foundation, the elevation of the pre-buried anchor bolts and the center of the distance, the pre-buried anchor holes, the center of the hole, the depth of the hole and the degree of plumbness of the hole wall, the elevation of the pre-buried anchor plate of the movable anchorage bolts, and the depth of the hole wall, and the depth of the pre-buried anchors. Elevation and center position of anchor plate, horizontal level of anchor plate with groove and anchor plate with thread.
●The pre-pressure test of the foundation of heavy equipment is a preventive measure taken to prevent the installation of heavy equipment from failing due to the uneven sinking of the foundation after installation. Foundation pre-pressure test of the pre-pressure should not be less than the full load operation of the equipment acting on the foundation of the equipment and the sum of the force, the observation of the reference point should not be affected by the settlement of the foundation, the observation point around the foundation of not less than four evenly distributed points. Observations should be regular and should be until the basic stability of the foundation. Observation period should be recorded in detail.
The installation level is not too high requirements of heavy equipment in the installation of the foundation before the pre-pressure test, but only in the trial operation of the equipment for the foundation settlement observation.
(4) equipment in place: equipment safely placed on the foundation, in the industrial equipment installation project accounted for a large amount, it is mainly on the lifting operation requirements. A large weight, volume, installation location and high equipment, the difficulty of lifting and consumption costs are very high. For dismantled equipment, the equipment base should be put into position first.
(4) precision testing and adjustment: precision testing and adjustment is a key part of the mechanical equipment installation project. Is an important indicator of the quality of the installation project. It includes almost all the positional accuracy items and part of the shape accuracy items, involving error analysis, the principle of dimensional chain and precision measurement technology.
Accuracy testing is the detection of equipment, parts and components of the relative positional errors, such as perpendicularity, parallelism, coaxiality errors.
Adjustment is based on the technical requirements of the equipment installation (specified by the specification or equipment random technical documents) and the results of the accuracy test, adjusting the equipment itself and the mutual position of the state, such as the installation of the equipment level, verticality, parallelism and tilt and so on.
(5) equipment fixed: in addition to a small number of mobile machinery and equipment, the vast majority of machinery and equipment must be firmly fixed in the equipment base. Especially for heavy, high-speed, vibration machinery and equipment, if not firmly fixed, may lead to major accidents.
For disassembled equipment, the base should be fixed in place first, and then assembled.
(6) disassembly, cleaning and assembly: for the dismantling of mechanical equipment and more than the anti-corrosion preservation period of the whole mechanical equipment, should be disassembled, cleaning and assembly, which is required to be more delicate procedure, if the cleaning is not clean or improperly assembled, it will be normal operation of the equipment in the future to cause the impact. The general steps of equipment assembly are as follows:
Familiarize yourself with the equipment assembly diagrams, technical instructions and equipment structure, clean the assembly site, understand the structure of the equipment, with the precision, to determine the assembly method, ready to work tools and materials.
The collection and inspection of parts include appearance inspection and accuracy inspection, inspection should be recorded.
Cleaning parts and lubricating oil (grease): equipment assembly with the surface must be clean and coated with lubricating oil (grease) (except for special requirements), which is to ensure that the surface is not easy to rust, easy to disassemble the necessary measures.
Component assembly: first from the combination of parts, from small to large, from simple to complex.
Assembly of components: assembly of components into parts.
Total assembly: total assembly from components, first main engine and then auxiliary engines.
(7) lubrication and equipment refueling: this is to ensure the normal operation of machinery and equipment necessary conditions. Lubricating oil and lubricating parts to be clean, lubricant selection is reasonable, the quality to meet the requirements of the equipment and lubricant oil and lubricant to add the appropriate amount.
(8) adjustment and test run: it is a comprehensive test of equipment manufacturing and equipment installation quality is an important part of the process, involving a number of professions, personnel, must be carefully organized, unified command.
(9) acceptance of the project: after the equipment test run, should be timely for the acceptance of the project.
2, factors affecting the accuracy of equipment installation and installation accuracy control methods
Factors affecting the accuracy of equipment installation
● Foundation construction quality (accuracy): including the foundation of the shape of the geometric dimensions, location, the elevation of different planes, on the plane of the smoothness and parallelism with the horizontal plane deviation; the foundation of the strength, stiffness, settlement, tilt and seismic performance. Performance, etc.
●The installation quality (precision) of the pad iron and ground bolt: including the quality of the pad iron itself, the contact quality of the pad iron, the perpendicularity of the ground bolt and the horizontal plane, the quality of the secondary grouting, the degree of compression of the pad iron and the tightening torque of the ground bolt.
●Equipment measurement reference selection, directly related to the installation of the entire equipment to find the final quality of leveling. Installation of the measurement reference is usually selected in the equipment base, body, shell, machine base, bed, table plate, foundation plate and other processing surface.
●Bulk equipment assembly accuracy; including the relative motion accuracy between the moving parts, fit between the surface of the precision and contact quality, these assembly accuracy will directly affect the quality of equipment operation.
●The precision of the measuring device must be compatible with the precision requirements of the measuring device, otherwise it will not meet the quality requirements.
●Equipment impact of internal stress: equipment in the manufacturing and installation process of internal stress will make the equipment to produce deformation and affect the accuracy of equipment installation. Therefore, in the equipment manufacturing and installation process should be taken to prevent the equipment to produce internal stress technical measures.
●Temperature changes have a great impact on the foundation of the equipment and the equipment itself (including the foundation, equipment and measuring devices), especially large-scale, precision equipment.
●Operation error: operation error is unavoidable, the key to the problem is to control the operation error within the allowable range. Installation accuracy control methods
Installation accuracy should be improved from the method of people, machines, materials, methods, environment and other aspects of the start, in particular, to emphasize the role of entry, should be selected and sent with the appropriate level of technology to engage in the corresponding work, the use of appropriate, advanced construction techniques, equipped with good and appropriate construction machinery and appropriate accuracy of the measuring instruments, in the appropriate environment for the operation, in order to improve the quality of the installation to ensure the installation of the accuracy. Ensure the installation accuracy. Installation accuracy control methods have the following points;
●Try to exclude and avoid factors that affect the installation accuracy.
●According to the design accuracy and structural characteristics of the equipment, choose appropriate and reasonable assembly and adjustment methods. Adopt the position of compensable parts or choose to install a suitable fixed compensation parts or a group of methods for adjustment, offsetting the excessive cumulative error of installation.
●Select reasonable testing methods, including testers and measurement methods, the accuracy level should be compatible with the accuracy requirements of the equipment to be tested.
● If necessary, the use of repair method: repair method is to compensate for the additional processing of parts to offset the excessive cumulative error of installation. This method is used when the adjustment method cannot be solved.
●Reasonable determination of deviation and its direction: equipment installation is allowed to have a certain degree of deviation, if the installation accuracy is within the permissible range, the equipment installation is qualified. But some deviations have direction, which is generally specified in the equipment technical documents. When the equipment is not specified in the technical documents, can be carried out in accordance with the following principles:
Beneficial to offset the impact of the weight of the equipment after the installation of ancillary parts,
Beneficial to offset the impact of the force generated by the operation of the equipment;
Beneficial to offset the impact of wear and tear of components,
Beneficial to offset the impact of the friction surface of the oil film between the friction surfaces,
Equipment accuracy Determination of the direction of deviation is a complex, highly technical work, for a deviation direction, often take into account a variety of factors, should be the main factors to determine the direction of deviation of the installation accuracy.
3, elevator construction technology
Construction site elevator project is the whole elevator without the combination of the manufacturer's loose parts, in the construction project to provide the conditions of compliance with the requirements of the combination, to become a whole device to meet the functional requirements. Therefore, it can be considered that the elevator project is the continuation of equipment manufacturing. Special equipment supervision regulations, manufacturing units to be responsible for the installation of the combination of calibration and commissioning results.
Because the elevator project in the high and deep shaft operation, each floor in the layer door installation before leaving a large doorway, this situation to the operating personnel or other casualties there is the risk of falling from a height; shaft operation has three-dimensional cross phenomenon, so the development of safety measures to prevent safety accidents in the construction of the safety technology is essential.
Construction procedures:
● Written report to the project location of special equipment safety supervision and management department.
●The elevator shaft civil engineering testing and identification to determine whether the shape and size of the elevator to be installed in accordance with the civil layout and other requirements.
●Provide protective railings for the reserved holes of the floor doors and temporary covers for the reserved holes of the machine room leading to the shaft.
●The shaft is installed with guide rails after placing the reference line.
●Installation of equipment in the equipment room and piping and wiring in the shaft.
●After assembling the car, install the floor door and other related accessories.
●Electrification and no-load test run after passing the load test run, and check whether the action of each safety device is normal and accurate.
●Arranging the records, ready to declare for use.
Elevator construction management requirements
(1) such as the implementation of general contracting unit equipment (elevator) procurement and supply and supervision of manufacturing, the choice of the manufacturer should be licensed by the State Council Special Equipment Safety Supervision and Administration Department of the manufacturer, bidding for procurement, only licensed manufacturers can be shortlisted.
(2) elevator installation, open box inspection into the acceptance, whether it is self-procurement, or construction units to provide, in addition to checking the specifications and models, the number of parts and accessories, the appearance of the inspection, such as conventional inspection, can not be ignored is to verify the elevator body and its safety accessories, safety protection devices, the production license, the proof of which may be a written document may also be marked on the nameplate. License number. At the same time on the elevator factory accompanying documents for inspection, including: design documents with safety specifications, product quality certification, installation and use of maintenance instructions, supervision and inspection certificates.
(3) elevator installation unit can be constructed, the same to obtain the State Council special equipment safety supervision and management department of the permit, and thus the general contractor needs to choose the elevator installation of professional sub-contracting units, but also only in the selection of units in the permit. Licensed units include manufacturing units (installed by the license) or manufacturing units through the contract commissioned by the consent of the licensed units.
(4) elevator installation should be informed in writing before the start of the municipalities or cities directly under the Central Municipality of special equipment safety supervision and management department, otherwise the construction can not be.
(5) elevator installation must strictly comply with the requirements of the safety specifications, accept the guidance and monitoring of the manufacturing unit. After the end of the installation by the self-test, by the manufacturing unit inspection and commissioning, and the results of inspection and commissioning to inform the State Council's special equipment safety supervision and management department approved by the inspection and testing organizations require supervision and inspection. Only supervision and inspection of the elevator can be delivered for use.
(6) elevator installation within 30 days after acceptance, the construction unit will be transferred to the use of relevant technical information, the use of technical information from the unit will be deposited in the unit's special equipment safety and technical files.
(7) elevator installation units to maintain appropriate professional and technical personnel and skilled workers, these personnel should be trained and qualified before taking up their posts; also to maintain the construction machinery and testing instruments and meters, so that they are in good condition. At the same time in the implementation of the installation to check the effectiveness of the management system to prevent failure.
(8) elevator manufacturing and installation license is not a life-long system, is a dynamic change, so the order or selection of construction teams, pay attention to the collection of information to prevent mistakes.
4, equipment management
(1) equipment manufacturing
Equipment manufacturing quality is good or bad, not only affects the quality of the installation, but also directly affects the processing accuracy of the product, thus affecting the use of functionality, especially in the electromechanical installation projects, including equipment turnkey projects, is a very important, very critical link. Equipment in the total cost of the project accounted for a significant proportion of the equipment quality failure may cause significant economic losses. Therefore, it is necessary to supervise and control the manufacture of the equipment, and carry out inspection and acceptance after the completion of manufacture.
(1) the main technical points of equipment manufacturing supervision
Preparation of equipment manufacturing supervision outline, the development of supervision and manufacturing program, including packaging, storage and transportation, shipment of technical points.
(2) the main technical content of the equipment monitoring
● According to the role of the operational reliability of the equipment to determine the classification of the equipment and list, according to the role of the equipment in the production process, generally categorized into three categories: a class of equipment is that the failure of its equipment will immediately suspend the production process; the second class of equipment is not immediately suspend the production process, but only after the switch or start to restore the production process; the third class of equipment does not belong to the above two categories of equipment, the production process is not immediately suspend the production process. Three types of equipment is not one of the above two types of equipment.
● According to the category of equipment, that is, the importance and characteristics of the different categories of equipment, respectively, for the manufacturing plant verification, including supervision of manufacturing, factory test acceptance, intermediate strengthening of supervision.
●Equipment supervision of quality supervision and quality assurance system, equipment supervision is a supervisory process, which involves the entire equipment design and manufacturing process, verification of equipment design, manufacture of important quality characteristics and ordering contracts, as well as the provisions of the applicable standards, drawings and professional codes of conformity. If a major incident occurs, a quality assurance system audit is required, including technical documents such as:
Quality assurance documents related to the manufacturing process, such as manuals or outlines, including a list of major procedures;
Control procedures for nonconformity and corrective action during the processing of the equipment, including procedures for reporting and approving major nonconformities;
Supervision of the manufacturing process records, inspection and supervision of the inspector. Periodic reports of work, such as subcontractor's quality memorandums and reports.
●Supervision points:
Supervision and control points are set up according to the classification of the equipment to be supervised, including the handling of discrepancies between the design process and the contract requirements. The main supervision point requirements are as follows:
Stop point supervision: for equipment safety or performance of the most important relevant inspection, test and set up, supervisors in the field to monitor the operation. Supervisors monitor the operation according to the standard regulations, confirm the point of the process operations, focusing on verifying the quality and compliance with the requirements of the operating conditions of the workforce.
Evidence monitoring: for equipment safety or performance of important relevant inspection, test and set up, supervisors on the scene to monitor the operation, such as for some reason the supervisors to attend, the manufacturer can carry out this point of the corresponding process operations, after passing the test, can be transferred to the next process, but must be submitted to the supervisory staff to review the relevant results afterward.
Documentation point supervision: require the manufacturer to provide quality compliance inspection records, test reports, raw materials and supporting parts of the certificate of conformity or warranty and other technical documents for recognition, so that the general contractor is convinced that the corresponding process of equipment manufacturing and testing has been in a controlled state.
(3) the main technical content of equipment supervision and acceptance:
(1) equipment supervision and acceptance of the main basis for acceptance
● equipment ordering contract all the parameters, models, quantities, performance and other requirements related to the equipment and progress, scope of supply.
●Design unit of the equipment specifications, drawings and materials inventory.
●The general contractor to develop the supervision and manufacture of the outline.
(2) The main technical content of the equipment manufacturing supervision and acceptance
Including equipment design, manufacturing and inspection of the whole process, the main technical points are:
●Important design drawings, documents and technical agreements required for the review of the differences between the main manufacturing process and the review of the differences between the design and technical requirements.
●Key raw materials and components quality documentation review, including key raw materials, collaborative parts, supporting components of the warranty and incoming inspection report of the data and the consistency of design requirements.
●Inspection, test reports and records of key parts and components, as well as key process test reports and inspection, test records and review.
●Tests on the machining quality characteristics of equipment parts, components and assemblies defined as the most important points and important points, monitoring of the process and verification of the relevant records.
●Checking the quality of finished equipment in terms of appearance, interface dimensions, painting, nitrogen filling, protection, packaging and crating, or related documents, drawings and guarantee measures.
●Inventory of equipment, accessories and spare parts to confirm completeness of scope of supply.
●Review the completeness and correctness of drawings, documents, information, manuals and completion documents delivered under the contract.
●Confirm packaging, shipment and transportation.
●Signing witnessing/acceptance documents, or follow-up action plans.
The common procedures for purchasing are:
●Preparation of purchase list.
●Conclusion of a contract.
●Supervision of equipment construction.
●Packaging, transportation and delivery of equipment.
●Acceptance of equipment includes acceptance at the site of equipment manufacturing and acceptance at the site of equipment construction.
Equipment acceptance
●Equipment acceptance includes equipment manufacturing site acceptance and equipment acceptance at the construction site.
●When the contract specifies the need for on-site acceptance of equipment manufacturing, on-site acceptance will be carried out during the process of equipment supervision and manufacturing.
●The requirements for equipment acceptance shall be implemented in accordance with the requirements of "1M412142 Main Technical Contents of Equipment Acceptance".
●Incoming acceptance is the equipment transported to the construction site, the project manager shall organize the relevant personnel in accordance with the requirements of acceptance. This work is generally divided into the field and the installation of the two sections before the field, that is, after the field on the appearance of the equipment packages check, the requirements of the incoming inspection procedures implemented; equipment before the installation of the storage, unpacking inspection requirements of the equipment storage, unpacking inspection requirements implemented.
Acceptance of imported equipment should first apply for customs clearance and customs clearance procedures, after passing the commodity inspection, and then according to the provisions of the imported equipment, equipment acceptance work.
5, materials management
(1) the procurement of materials to meet the requirements of the relevant provisions
● electromechanical installation of the main materials required for the project and bulk materials (Class A materials) should be made by the material department of the enterprise procurement plan, validation of the supplier, the establishment of a qualified supplier directory, the supply side of the assessment, the signing of a supply contract to ensure the supply of quality work and material quality.
● Class A materials should be ordered by the enterprise material department or market procurement, according to the plan to supply to the project management department. The project management department should provide the material requirement plan to the enterprise material department in time. The project management department which is far away from the headquarter of the enterprise can purchase locally under the authorization of the legal representative.
●Class B and C materials shall be purchased by the project management department under the authorization of the contractor. The project management department shall prepare the procurement plan, submit it to the enterprise material department for approval, and purchase according to the plan. Special and sporadic material varieties, agreed in the "project management objectives and responsibilities".
(2) The materials should be filled in the field acceptance form and reported to the supervisor for approval
●The materials should be accepted and certified in quantity and quality, and the corresponding acceptance records and labels should be made. Unqualified materials should be replaced, returned or concessions to receive (degraded use), the use of unqualified materials is strictly prohibited.
●Materials measuring equipment must be qualified by the regular inspection of the organization to ensure that the measurement of the required accuracy. Unqualified measurement equipment is not allowed to use.
● Incoming materials should be the manufacturer's material certification (including factory name, species, factory date, factory number, test data) and factory certificate. Requirements for re-inspection of the material should be sampled and sent to the inspection report. New materials without test identification, shall not be used in the project. Site preparation of materials should be test-mixed, should be certified before use.
(3) materials approved by the supervisor, can be stored in the warehouse for storage and management
● storage of materials, should be according to the type, variety of district stacking, and were numbered, labeling. To achieve reasonable palletizing, careful maintenance, careful inspection, reduce losses, so that the material in the custody period, the quality is perfect, the number of accurate, convenient delivery, the use of zoning, classification and numbering of goods to be stored, as far as possible to reduce the cost of storage.
●In the material storage period should be achieved:
Materials account, card, material and its quality assurance documents are complete and consistent.
Reasonable storage layout, the material type of library, according to the material shelf, according to the specifications of the varieties of sub-layer sub-position, and make obvious signs.
To take reasonable quality assurance means and measures. Such as flammable and explosive materials should be specialized storage, special custody, and strict fire, explosion-proof measures. Easy to damage the material should protect the packaging to prevent damage.
The quality of unclear marking or loss of marking of the material, where there is an accurate basis, the custodian should be in the verification of quality assurance documents on the basis of information, and re-do the corresponding marking; for although there is a basis, but the correspondence is not strong, should be necessary means of inspection, in order to find out what it is made of, and then re-make the marking.
(4) the establishment of material use limit collaterals system
● material distribution warehouse personnel should be based on the management or technical personnel issued by the warehouse vouchers or collaterals vouchers to the need for the unit of the construction team to issue materials. Materials should be reviewed, strictly in accordance with the provisions of the bill of materials issued. Over the limit of materials, materials should be handled before the procedures, fill out a material receipt, indicating the reasons for overconsumption, approved by the project manager materials management personnel.
●Use of material units or construction team material collector should carefully fill out the material receipt, write down the name of the material, material, specifications, models, quantities, construction parts, according to the provisions of the approval of the warehouse administrator issued.
●In the issuance of materials at the same time, should show the corresponding quality assurance documents. For important projects (e.g. boilers, pressure vessels) materials, inspectors to carry out the necessary checks, after the receipt of materials signed on the confirmation.
●Necessary marking is done by the warehouse manager at the same time as the material is issued to ensure that both issued and remaining materials are marked with the same content for traceability.
(5) Establishment of material usage account and implementation of material usage monitoring system
●Material usage account should record the status of usage and savings.
●Materials management personnel shall supervise the use of materials and establish a record of supervision.
●Out-of-stock materials, residual materials, as well as materials identified by the quality inspector as unqualified materials, must be recycled procedures to achieve the completion of the work, materials, clean field; the existence of problems should be analyzed and dealt with in a timely manner.
●The team should handle the remaining material return procedures. Facility materials, packaging and containers should be recycled, and establish a recycling account.
●Development of the system of storage and use of turnover materials.
6, coordination management
(1) internal coordination management
Construction enterprises engaged in electromechanical installation, the management of its construction activities and technical composition of the construction activities with other construction activities with different characteristics, mainly in the management of the object of multi-disciplinary division of labor, both construction and manufacturing, involving machinery, electronics, light industry, heat engine, heat, electric power, water supply, water supply, transportation, pharmaceuticals, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, food and beverage, and food and beverage, and food and beverage, and food and beverage. Pharmaceuticals, food and other industries related disciplines, and therefore the composition of its staff, especially the quality and number of technical managers and operators should be equipped with the construction of objects commensurate with the construction machinery, testing equipment and instruments to meet the capacity, precision and the number of electromechanical installation project construction activities to ensure that different types of construction activities can be carried out smoothly.
Electromechanical installation project includes equipment installation, electrical installation, pipeline installation, ventilation and air-conditioning installation, automatic control and instrumentation installation, metal structures or tanks and containers assembled, kiln installation, weak power intelligent installation and other professional construction activities, so the coordination and cooperation between the various professions of the project, such as scheduling, exchange of work surfaces, process convergence, the comprehensive layout of the pipeline of various professions should be in line with the objective rules of the installation process. Electromechanical installation process of the objective law, this law is reflected in line with the requirements of the project design, mutual creation of construction conditions, to ensure the quality of the project, to achieve the commissioning of the program needs and other aspects.
(2) external coordination management
Electromechanical installation project in the construction process, the project manager should be a comprehensive organization and control of the production factors to ensure that construction can be scientific, effective and smooth. External coordination refers to the mechanical and electrical installation project manager and the coordination between the relevant parties. Installation engineering construction of external coordination mainly in the following areas:
(1) and civil engineering coordination
● regardless of the characteristics of the electromechanical installation project, are inseparable from the coordination of civil engineering, just according to the nature of the project to distinguish between the complexity of coordination and the degree of closeness.
● civil mechanical and electrical installation works are mainly dependent on civil engineering, civil engineering schedule, quality control, safety and civilized construction and other project management is the main line, mechanical and electrical installation works for the auxiliary line, the auxiliary line must obey the main line.
●Industrial mechanical and electrical installation projects should be based on the production process and its various types of power stations (power substations, air pressure stations, heat stations, acetylene stations, oxygen stations, gas stations, water pumping stations, etc.) to arrange the overall progress of the order of commissioning plan, there is no doubt that the mechanical and electrical installation project is in the position of the main line of civil engineering to comply with the principle of this arrangement is in the position of the auxiliary line.
● If the project implementation of electromechanical installation of general contracting, the implementation of electromechanical installation of the general contractor for the overall management of the project, the coordination of the leading responsibility.
(2) and other related parties to coordinate
Electromechanical installation project coordination and coordination with the project between the external parties, in addition to special materials order procurement, should pay attention to the following parties to coordinate with the timing and conditions, otherwise it will affect the smooth commissioning of the project has been completed or use:
●Imported equipment and materials inspection.
●Power supply line introduction.
●Water supply pipeline connection.
●Sewerage pipe network.
●Communication network introduction.
●Municipal gas and heat.
●If the implementation of electromechanical installation of large-scale industrial projects, often involves the construction of railroads, ports, waterways, trunk highways, its connection and operation is also not to be ignored.
(3) and regulatory interface
Electromechanical installation projects have government supervision of special equipment installation, fire equipment installation, etc., should be in accordance with national laws and regulations and the relevant provisions of the local regulatory authorities, listed in the plan, according to the inspection, process supervision, and ultimately allowed to use the procedures for all legal procedures.
7, the completion of the project acceptance P143
8, engineering warranty
Engineering warranty reflects the project contractor responsible for the project in the end of the spirit of the construction enterprise "service-oriented, responsible for the user" purpose, the construction unit in the project after the completion of acceptance of the delivery of the use of the construction unit should fulfill the contractual obligations of the warranty.
(1) the scope of responsibility for the warranty
● quality problems is indeed due to the construction of the construction unit's construction responsibility or construction of poor quality caused by the construction unit is responsible for the repair and bear the cost of repair.
●Quality problems are caused by the responsibility of both parties, should be negotiated, agreed on their respective financial responsibility, the construction unit is responsible for repair.
●Quality problems are caused by poor quality of equipment and materials provided by the construction unit, the construction unit shall bear the cost of repair, and the construction unit to assist in the repair.
●Quality problems occur due to the responsibility of the construction unit (user), repair costs borne by the construction unit.
●The repair of foreign-related projects shall be carried out according to the provisions of the contract, and the economic responsibility shall be dealt with according to the above principles.
(2) warranty time
from the completion of the day after the date of acceptance of the second day of calculation, electrical piping, water supply and drainage piping, equipment installation warranty period of two years, heating and cooling works for two heating period or two cooling period.
9, construction organization
10, construction schedule
11, quality control
How to control the quality of the project quality control of the main content of quality control will analyze the quality of the project.
12,Engineering quality problems
13,Engineering quality accidents
14,Quality inspection
15,Engineering cost
Simple calculations using the fixed amount method and list method.
16,Tendering and Bidding
Procedures
17,Contract Management
The most important point
18,What are the methods of risk identification which one of them is necessary to be used?