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2021 Project Plan Template
I am personally quite confident about this project planning, because my major is planning. The following is my carefully planned plan. The following is the "2021 Project Plan Template" compiled by me for everyone. It is for reference only. You are welcome to read it. 2021 Engineering Project Plan Template 1
The 2021 Anti-corrosion Insulation and Waterproof Engineering Project Business Plan is written in accordance with the standard text format commonly used by international practices. It comprehensively introduces the company and project operations, and elaborates on the product market. and competition, risks and other future development prospects and financing requirements.
The anti-corrosion, thermal insulation and waterproofing project summary section condenses the essence of the business plan, covers the key points of the plan, and provides a clear interpretation of the business purpose, making it easier for readers to review the plan and make judgments in the shortest possible time.
This part of the product (service) introduction of anti-corrosion, thermal insulation and waterproofing engineering projects is one of the issues that investors are most concerned about. We have comprehensively analyzed the extent to which products, technologies or services can solve real-life problems. , helping customers save money and increase income.
The anti-corrosion, insulation and waterproofing project personnel and organizational structure section details the composition and background of the core management team. It also focuses on elaborating on key managers, introducing their management capabilities, duties and responsibilities in the company, and their detailed past experiences and backgrounds. At the same time, the functions and responsibilities of each department of the company, the heads and members of each department, the company's salary system, shareholder list, shareholding ratio, etc. are also explained.
Market forecast for anti-corrosion, thermal insulation and waterproofing engineering projects: whether there is demand for products (services), what is the degree of demand, whether it can bring expected benefits to enterprises, how big is the market size, what are the future development trends, and influencing factors What are they, the competitive landscape currently faced by the company, who are the main competitors, etc. are elaborated in detail.
The marketing strategy for anti-corrosion, thermal insulation and waterproofing engineering projects combines the characteristics of consumers, the characteristics of products, the company’s own situation and market environment factors, fully considers the feasibility of strategy implementation, and also considers the marketing channels Selection, marketing team management, promotion plans, advertising strategies and price setting are fully formulated.
The financial plan of the anti-corrosion, thermal insulation and waterproofing project is inseparable from the enterprise's production plan, human resources plan, marketing plan, etc., and needs to be based on a full analysis of the cost and output scale of the product (service) On this basis, we made detailed calculations on the cash flow statement, balance sheet and profit and loss statement based on the actual situation of the company. 2021 Engineering Project Plan Template 2
Project name: xx
Startup time: xx
Registered capital to be prepared: xx
Project progress : (Describe the progress since the inception of the project to the present)
Main shareholders: (List the names, investment amounts, investment forms, units and contact numbers of current shareholders.)
Organization structure: (represented by a diagram)
Main business: (Main business to be operated.)
Profit model: (Details describe the business profit model of this project.)
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Development strategy and business goals for the next three years: (Industry status, sales revenue, market share, product brand, etc.)
2.1 Board of Directors to establish the company: (Director members, names, Position, work unit and contact number)
2.2 Introduction to the senior management: chairman, general manager, main technical person in charge, main marketing person in charge, main financial person in charge (name, gender, age, education, Major, professional title, graduate school, contact number, main experience and performance, mainly describing management experience and successful cases in this industry)
2.3 Incentive and restraint mechanism: (The company’s management and key personnel. What incentive mechanisms and reward measures will be adopted for personnel.
)
4.1 Analysis of technical feasibility and maturity of the project
4.1.2 Discussion of technological innovation of the project
(1) Basic principles and key technical content
(2) Technological Innovation Points
4.1.2 Project Maturity and Reliability Analysis
4.2 Project R&D Results and Main Technology Competitors: (Product Whether it has been appraised by international and domestic industry authoritative departments and institutions at all levels; domestic and international conditions, domestic and foreign competitors of the project in terms of technology and product development, and measures taken by the project to improve competitiveness)
4.3. Follow-up R&D plan: (Please describe the R&D focus of the project and the new products that are being developed or are planned to be developed in the next 3 years in order to ensure product performance, product upgrading and maintain technological advancement.)
4.4 R&D investment: ( The total investment in technology development of the project so far, how much development funds are planned to be invested, and a list of annual purchase of development equipment, staff costs and other development-related expenses)
4.5 Technical resources and Cooperation: (The existing technical resources and technical reserves of the project, whether to seek technical development support and cooperation, such as universities, scientific research institutes, etc., if so, please explain the cooperation method.)
4.6 Technical confidentiality and Incentive measures: (Please describe the technical confidentiality measures adopted by the project and what kind of incentive mechanism is used to ensure the security of the project’s technical documents and the stability of key technical personnel and technical teams.)
5.1 Industry status: ( Development history and current situation, which changes have a greater impact on product profits and profit margins, technical barriers to entry into the industry, trade barriers, policy orientations and restrictions, etc.)
5.2 Market prospects and forecasts: (industry-wide. Sales development forecast and indicate the source or basis of the data)
5.3 Target market: (Please provide a detailed description of the main user types for the product/service.)
5.4 Main competition Opponents: (Describe the main competitors in the industry, mainly describe the competitors in the main sales markets, their market shares, competitive advantages and competitive disadvantages)
5.5 Market barriers: (Please explain the market Whether there are industry controls on sales, the difficulty and countermeasures for the company's products to enter the market)
5.6 SWOT analysis: (the advantages and disadvantages of products/services compared with competitors, and the opportunities and threats they face)
5.7 Sales Forecast: (Forecast the company’s sales revenue and market share in the next three years)
6.1 Price Strategy: (Composition of sales cost, basis for setting sales price and discount policy)
6.2 Marketing Strategy: (Please describe the strategies and implementation methods in establishing sales network, sales channels, advertising and promotions, establishing agents, distributors and after-sales services)
6.3 Incentive Mechanism: (Describe the establishment of Strategies and methods for a good-quality sales team, and what kind of incentive and restraint mechanisms are adopted for sales staff)
7.1 Product production (whether the product is produced by itself or commissioned for processing, production scale, production Site, process flow, production equipment, quality management, raw material procurement and inventory management, etc.)
7.2 Production staffing and management
9.1 Financing quantity and equity of equity small and medium-sized enterprises: (hope to start a business The number of equity projects the fund participates in, other sources and quotas of funds, and the equity of each investment participant in the company)
9.2 Purpose and use plan of funds: (Please list the post-financing project implementation plan of small and medium-sized enterprises , including capital investment progress, effects and start and end time, etc. )
9.3 Return on investment: (Explain the average annual return on investment in the next 3-5 years after financing for small and medium-sized enterprises and relevant basis.)
9.4 Financial forecast: (Please provide financing for small and medium-sized enterprises Finally, the balance sheet, profit and loss statement, and cash flow statement of the project forecast for the next three years are provided, and the basis for the preparation of financial forecast data is explained.
)
11.1 Main risks: (Please describe in detail the policy risks, R&D risks, operation and management risks, market risks, production risks, financial risks, exchange rate risks, and key risks to the project that may be encountered during the implementation of this project. Risks of personnel dependence, etc.)
11.2 Risk Countermeasures: (If the above risks exist, please describe the control and prevention countermeasures.) 2021 Project Plan Template 3
System Overview:
The piping in this project uses PVC pipes concealed in the walls and floors, and the power pipes use galvanized steel pipes.
1. Construction sequence
Follow the conventional construction method from bottom to top to cooperate with civil construction. Pipelines within concrete slabs, walls, beams and columns are constructed according to the main construction progress, and pipelines within the masonry are constructed at the same time as the masonry construction. Some pipelines cannot be pre-buried and must be cut and buried after the masonry reaches a certain strength.
2. Construction process
1. Concealed pipe laying process: construction preparation → prefabrication → pipeline and wire box marking → pipeline and wire box positioning → pipeline connection → pipeline, Wire box reinforcement.
2. Exposed pipe laying process: construction preparation → prefabrication → pipeline marking → pipeline connection.
3. Construction method
1. Pipeline bending: Use a pipe simmering device for PVC pipes, and use stamping elbows for welding steel pipes.
2. Pipeline cutting: Use a hand saw for small pipe diameters, and a pipe cutting machine for larger pipe diameters.
3. Pipeline connection: (PVC pipe): Use special FST series joints, FSJ/Q series lock nuts and special bonding glue.
4. Fixing of concealed pipes and boxes: fixed within the board, and the wooden mold uses nails and thin wire to tie and fix the box. The steel formwork is fixed with high-grade cement mortar. The wiring boxes on walls and columns are fixed by binding. The pipelines are bound and fixed with iron wire and steel bars, with a fixed spacing of 1 meter, and a reinforced binding within 150mm next to the line box. The fixed spacing between pipe clamps for exposed pipes is: the distance between the pipe clamp and the middle, the middle of the turn, the edge of the appliance or wire box is 150 to 500 mm. The distance between the middle pipe clamps is set according to Table 14.2.6 of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002 . If the number of wires entering the lamp head box and switch box exceeds 4, use a large box.
5. Laying of concealed distribution electrical pipelines: When piping, pay attention to the bending radius of the pipeline not being less than 10 times the outer diameter of the pipe. If the pipeline length is ≥30m without bends, ≥20m with one bend, ≥15m with two bends, and ≥8m with three bends, a junction box must be added. There cannot be four bends in a single section of pipeline layout. When laying pipes embedded in concrete walls or the ground, they should be tightly bound and fixed to the inside of the steel bars to minimize the overlap height. It is important to note that the pipelines must have at least a 15mm protective layer.
6. Laying of exposed electrical pipelines: When laying exposed pipelines, pay attention to the bending radius being greater than 6 times the outer diameter of the pipe. The pipeline layout should be smooth and straight.
7. Ground wire connection: Make a jumper ground wire at the connection between the power pipe and the box after piping. The ground wire connection of the welded steel pipe shall be made of ≥φ6 round steel jumper, the welding length shall not be less than 6 times of the outer diameter of the steel pipe, and welding shall be performed on both sides.
4. Key points of construction quality control
1. The key point of pre-embedding electrical piping in this project is the pre-embedding of pipelines in the concrete floor slab of the bathroom floor, because all water supply pipelines in the bathroom of this project are It is buried underground. Once the pipes in the slab are blocked, the secondary piping will inevitably affect the laying of water supply pipelines. Therefore, it is necessary to ensure that the penetration rate of the intra-board piping reaches 100. During construction, attention should be paid to the firmness of the piping and the quality of the joints. When welding the connection, attention should be paid to ensuring that the casing length is 2.2 times the pipe diameter, the casing diameter should match the pipe diameter, and the counterpart should be placed in the middle of the steel pipe. After connecting the electrical conduits and plastic pipe joints, wrap them together with tape.
2. Layout of concealed distribution electrical pipelines: When laying internal pipelines, attention should be paid to avoiding the locations where water supply, drainage or other professional risers penetrate the floor, especially pipelines in the bathroom floor. When piping on concrete walls and columns, in order to ensure the accuracy of the same indoor elevation, use secondary pipes and reserve corresponding slots on the concrete wall. Pipe piping will be carried out after the civil construction is completed.
For the ground throw-out pipe and the switch throw-out pipe on the top plate, attention should be paid to the finished product protection of the throw-out pipe to prevent pipeline blockage. When piping on a masonry structure, try to pipe it at the same time as the masonry construction. If simultaneous piping is not possible, use a cutting machine to cut and lay the pipe after the masonry strength increases. It should be noted that the slot width should not be greater than 5mm of the outer diameter of the pipe. After the pipeline is laid, the trench should be sealed with cement mortar higher than the masonry mortar grade.
3. Arrangement of switches, sockets, and lamp holder boxes: The position of the lamp holder box should be centered in the room. The position of the switch box should be paid attention to the distance from the door and window. Consideration should be given to decorating the back door (window) cover. The installation dimensions and the position of the socket and electrical box should be paid attention to whether it is affected by the radiator or radiator. The pre-embedded height of wire boxes of the same type in the same room should be consistent. When embedding boxes in concrete walls and columns, you may consider enlarging the size of the pre-embedded hole appropriately for adjustment during installation.
4. Connection of electrical piping: When using PVC pipes for concealed piping, attention should be paid to ensuring that the casing length is 2.2 times the pipe diameter, and the casing diameter should match the pipe diameter.
5. Multiple pipes enter the box side by side, with even spacing and neat arrangement; when the pipes enter the box, locking nuts should be fixed inside and outside the box; when entering the floor-standing distribution box cabinet, Pipelines should be arranged neatly, and the pipe openings should be 50 to 80mm higher than the foundation floor.
6. Before construction, professional technicians will prepare a special technical explanation of the system based on the design drawings and drawing review content, and implement it after approval by the project engineer and quality inspector. During the entire process of electrical piping construction, professional technicians and quality inspectors conduct inspections in accordance with the construction drawings and the requirements of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002. After passing the inspection, a quality inspection sheet shall be posted and the inspection data shall be noted and submitted to the supervision unit for acceptance.
5. Wiring installation in the conduit
1 Construction sequence
Wiring in the conduit shall be carried out after the piping project or trunking installation project is completed.
2 Process flow
The process flow of threading in the conduit: Clean the pipeline → Thread the lead wire → Select the wire and color → Lay out the wire → Bundle the lead and wire → Thread the wire → Break the wire → Insulation test.
3 Construction methods
1. Clean the pipeline: Use a cloth tip to clean the water and debris in the pipe and trunking before threading.
2. Threading in the pipe: Use steel wire to penetrate the wire and introduce the wire into the pipe. Pay attention to the wires to avoid kinks, joints, disconnections, and back buckles in the pipe.
3. Phase separation of wires: phase separation and color according to the design drawings and GB50303-2002 15.2.2 requirements.
4. Broken wires: The reserved length of wires in the wire box is 150mm, and the reserved length of wires in the distribution box is 1/2 of the circumference of the distribution box.
5. Wire connection: Use the tin rinsing method to connect the wires. Ensure the contact area and mechanical strength when wrapping, and wrap at least 5 turns. The solder should be full, the surface should be smooth, there should be no false soldering or slag inclusions, and the soldering should be uniform. The joints should be clean, and the humidity of the tin should be controlled to minimize burning of the insulation layer of the wires. Insulating tape should be wrapped in the gaps between them. After rinsing the tin, it should be bandaged immediately, with rubber insulation tape wrapped inside and black tape wrapped tightly outside.
6. Insulation test: After the wiring is completed, perform an insulation shaking test on the line. Use a 500V megohmmeter with a range of 1 to 500MΩ to measure. The insulation resistance value of the lighting line is not less than 0.5MΩ. The insulation resistance of the power line is not less than 0.5MΩ. The resistance is not less than 1MΩ.
4 Key points of construction quality control
1. Pay attention to the threading in the pipe, and keep the box and box clean and free of debris. The mouthguards and wire sheaths must be complete and installed firmly, and the wires must be tightly wrapped and well insulated without damaging the wire core.
2. After the wires are threaded, roll the wire connectors into the box or box. Protect the finished product, lock the door of the distribution box, and put a temporary cover on the wire box before installing the panel. .
3. Before construction, professional technicians will prepare a special technical explanation of the system based on the design drawings and drawing review content, and implement it after approval by the project engineer and quality inspector.
During the entire process of installation and construction of wiring in conduits, professional technicians and quality inspectors conduct inspections in accordance with the construction drawings and the requirements of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002. After passing the inspection, a quality inspection sheet shall be posted and the inspection data shall be noted and submitted to the supervision unit for acceptance.
6 Electrical lighting and appliance installation
1 Construction sequence
The ceiling, wall decorative paint and floor cleaning work is coming to an end, the wiring work in the pipe is completed, and the installation work Can be carried out when fully developed.
2 Lamp installation process
Lamp inspection → Assembly → Lamp installation → Power on and trial operation
3 Construction method
1. Lamps Inspection: Perform a visual inspection before installing the lamp to ensure that the lamp is in good condition. The emergency lights must indicate the correct direction, be reliable and sensitive.
2. The wiring inside the lamp is strictly prohibited from being exposed. The lamp accessories are complete and there is no mechanical damage, deformation, peeling paint, cracked lampshade or lamp box, or warping.
3. Lamp installation: For lamps installed with a height less than or equal to 2.4m from the ground, BV-2.5mm2 wires should be used as PE protective wires for the metal shell. The lamps and lanterns must be installed firmly and straightly. For lamps with suspended ceilings or lamps weighing more than 3Kg, an independent hanging rod or embedded parts should be added to the ceiling to bear the entire weight of the lamp. The wooden platform for installing lamps and lanterns on the ceiling should be installed after the civil construction is completed. The wooden platform should be installed firmly without gaps or exposed black edges. For daylight lamps installed in rows, when pre-embedding the lamp head box, lay out the wires first and leave a spacing according to the lamp type. The allowable deviation of the center line of lamps installed in rows is 3mm.
4. Before construction, professional technicians will prepare a special technical briefing for the project based on the design drawings and drawing review content, which will be implemented after approval by the project engineer and quality inspector. The entire process of electrical lighting and appliance installation is inspected by professional technicians and quality inspectors in accordance with the construction drawings and the requirements of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002. After passing the inspection, a quality inspection sheet shall be posted and the inspection data shall be noted and submitted to the supervision unit for acceptance.
7 Installation of switches, sockets and user terminals
1 Construction sequence
The ceiling, wall decorative paint and floor cleaning work is coming to an end, and the wiring work in the pipe is completed. Installation work can be carried out when it can be fully carried out.
2 Construction process flow
Wire box cleaning → Wiring → Installation → Power on and trial operation
3 Construction method
1. Switch, Installation of sockets and user terminals: Install switches and sockets according to page JD8-108, concealed installation. The wiring of the switch should be correct and the switch must cut off the phase wire. The switch position should be consistent with the lamp position, and the opening and closing directions of the rocker switch in the same unit project should be consistent. The switch edge is 150~200mm away from the door frame and 1.4m from the ground. ≤5mm for parallel installation in the same room and ≤0.5mm. The verticality is ≤0.5mm for row installation. ≤2mm. The height of the socket concealed installation from the ground is according to the design requirements. The installation requirements in the same room are consistent.
2. When the single-phase two-hole socket is installed horizontally, the socket facing the socket is "zero on the left and hot on the right". When installed vertically, the socket facing the socket is "low zero and hot". Single-phase three-hole and three-hole sockets The protective grounding wires of the four phase holes are all at the top.
3. The protective wires of all sockets should be copper core wires with the same cross-sectional area and insulation level as the phase wires. All kinds of wires in the power distribution circuit are not allowed to be connected to other branch circuits at the terminal blocks of switches and sockets by means of sheathing and crimping wires.
4. The installation height and spacing control of switches, sockets, and user terminals should be consistent. The wiring of the switch should be correct and the switch must cut off the phase wire. The switch position should be consistent with the lamp position, and the opening and closing directions of the rocker switch in the same unit project should be consistent.
5. During construction, attention should be paid to the fact that the screws of the panel are made of galvanized parts. When installing, they should be close to the surface of the building without eating into the wall, black edges or gaps. When the depth of the wire box is greater than 150mm, it must be sleeved. Side processing.
6. Before construction, professional technicians will prepare a special technical briefing for the project based on the design drawings and drawing review content, which will be implemented after approval by the project engineer and quality inspector. The entire process of installation of switches, sockets and user terminals is inspected by professional technicians and quality inspectors in accordance with the construction drawings and the requirements of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002. After passing the inspection, a quality inspection sheet shall be posted and the inspection data shall be noted and submitted to the supervision unit for acceptance.
8. Installation of distribution boxes (cabinets)
1 Construction sequence
The concealed assembly of distribution boxes is carried out before plastering of civil works.
2. Process flow
Low-voltage distribution box installation process: Equipment unpacking and inspection→Equipment transportation→Elastic wire setting→Distribution box installation→Grounding installation→Exposed installation (concealed installation) ) Distribution box (pan) fixation → secondary control line adjustment and simulation test → acceptance of power transmission operation.
3 Construction methods
1. Order according to the design requirements, reserve the size of the distribution box hole, find the elevation, level, and verticality, and fill the surrounding area of ??the box with mortar .
2. Fixing of concealed assembly distribution box: Install the distribution box in the reserved hole, and find the elevation and horizontal dimensions of the box. After stabilizing the box, arrange the box inlet pipes neatly, fill the periphery with cement mortar and smooth it. After the cement mortar solidifies, install the panel and face. If the bottom of the box is flush with the exterior wall, the metal mesh should be fixed on the exterior wall before plastering the wall. Do not plaster directly on the bottom of the box. The installation surface must be flat. The surrounding gaps are even and symmetrical, the face (door) is straight and not skewed, the screws are evenly stressed vertically, and the box is stable, and the piping is straight.
3. The colors of each phase conductor are clear and consistent. The tinned parts of multi-strand wires should be wrapped with insulating tape of the same color as the conductors. The winding length should be consistent. Plastic protection is required at the entrance of the wire tube. mouth.
4. Before construction, professional technicians will prepare a special technical briefing for the project based on the design drawings and drawing review content, which will be implemented after approval by the project engineer and quality inspector. During the entire installation process of distribution boxes (cabinets), professional technicians and quality inspectors conduct inspections in accordance with the construction drawings and the requirements of the "Construction Quality Acceptance Code for Building Electrical Engineering" GB50303-2002. After passing the inspection, a quality inspection sheet shall be posted and the inspection data shall be noted and submitted to the supervision unit for acceptance.
9 Grounding Construction and Installation
1 System Overview
This project adopts TN-S combined grounding method to protect the grounding of equipment, various metal pipes, etc. Potential grounding and other special grounding devices should be used, and the grounding resistance should not be greater than 1Ω. Equipment protective grounding, equipotential grounding of various metal pipes and other special grounding devices, the grounding resistance should not be greater than 1Ω.
2 Construction sequence
The lightning protection and grounding system of this project will be constructed according to conventional construction methods and according to the civil construction progress. The basic grounding grid and down conductors are laid from bottom to top along with the main body. The local equipotential bonding is installed after the water supply and drainage pipelines are installed
3 Construction Technology
Installation of basic grounding grid → Installation of lightning protection down conductors → Installation of air terminals and horizontal lightning protection nets → Equipotential bonding → Ground resistance test
4 Construction methods:
1. Welding of basic grounding grid and lightning protection belt (net): All welding work is performed by welders with welding qualifications. The connection between steel and round steel adopts lap welding. The lap length of flat steel is twice the width of flat steel, and welding is performed on three sides. The overlap length of round steel is 6 times that of round steel, and both sides are welded. When flat steel and round steel are welded, the overlap length is 6 times that of round steel. When welding flat steel and steel pipes (angle steel), bend the flat steel into an arc or a right angle, tightly attach it to the steel pipe or angle steel, and then weld on both sides. Clean the welding slag from the welding area before painting.
1. Basic grounding grid: According to the design requirements, two adjacent Φ16 or above steel bars in the column are overlap-welded with the bottom plate steel bars. And mark the main ribs inside the column. Install grounding test disconnect cards on each down conductor between 0.3 and 0.5m away from the ground.
When steel bars and steel columns in concrete are used as natural down conductors and a basic grounding body is used at the same time, there is no need to set up breakers. However, when steel bars are used as down conductors, a number of connecting plates should be installed at appropriate locations indoors and outdoors. The connecting plates It can be used for measurement and equipotential bonding. The upper end should be clearly marked with the connection plate or steel column welded connection plate, and concealed acceptance records should be made.
2. Equipotential approach: This project adopts the main equipotential connection. The main equipotential board is made of TMX-500×25×4 copper plate and is located under the main distribution box and in all buildings. The incoming and outgoing metal pipes are connected to the equipotential system. The general equipotential bonding line is made of -40×4 hot-dip galvanized flat steel. The general equipotential bonding uses special equipotential clamps of various types. Welding on metal pipes is not allowed.
5. The steel mesh in the ground must be connected to the equipotential box connection line. The embedded connecting plate and the lead-out wiring board must be coordinated with the civil engineering profession. The embedded connection plate is located at the corner of the concrete column, and the lead-out wiring board Lead out through the wall.
6. Metal hoops are used to connect the equipotential bonding wires to the metal parts of the sanitary appliances. The contact surfaces between the hoops and the pipes must be scraped clean, and protective paint should be applied after installation. The embedded parts are located near the installation position of the sanitary equipment. Use wires larger than BV-4mm2 to connect the embedded parts to the galvanized bolts for installing the sanitary equipment. The copper wires need to be protected by passing through pipes in the wall or ground and connected to the LEB terminal board. connect.
7. Local equipotential bonding: The equipotential bonding method must strictly follow the requirements specified in the drawings, and pay attention to the welding quality and flatness of the flat steel. Connections to equipment ground must be in place.
8. Before the start of the project, professional technicians will prepare a special technical explanation of the system, which will be implemented after approval by the project engineer and quality inspector. During the entire construction process, professional technicians and quality inspectors conduct inspections in accordance with the construction drawings, "Code for Construction Quality Acceptance of Building Electrical Engineering" GB50303-2002 and "Code for Construction and Acceptance of Grounding Devices in Electrical Installation Projects" GB50169-92. After passing the inspection, affix a quality inspection sheet indicating the inspection data and submit it to the supervision unit for acceptance. 15 Equipment system debugging
1. Lighting system debugging: Test the insulation resistance of each circuit, which should be no less than 0.5MΩ. The light cord of the lamp cannot withstand tension, and the lighting switch must be sensitive and reliable.
2. The installation of switches, sockets, and user terminals should meet the design requirements. Switches installed in the same area should have the same opening direction, flexible operation, and reliable contact. All sockets need to be fully checked with a calibrator to meet the specifications, and the reliability of the leakage protector must be simulated to check. The user terminal connection line must be reliable and the contacts must be in correct contact.
5. The height error of lamps installed in rows shall not exceed 3mm. The switch must control the phase line. Only after passing the system inspection can the power test be carried out. Public lighting must be continuously tested through load for 24 hours. And the operating status is recorded every 2 hours, and there is no fault within a continuous period.
6. When the circuit insulation resistance of low-voltage distribution boxes and cabinets is 10MΩ, the withstand voltage test needs to be measured with a 2500V megger for 1 minute. There is no flashover breakdown.
7. If there are no abnormalities during the 24 hours of trial operation, please report to the supervision engineer and submit relevant electrical product certificates, instructions, change negotiation records, test reports and user instructions for electricity use prepared by the construction unit.
8. Equipotential bonding test: After installation, a continuity test should be carried out. The power supply for testing can be a DC or AC power supply with a no-load voltage of 4 to 24V. The test current should not be less than 0.2A. When the measured resistance between the equipotential bonding terminal board and the ends of metal pipes and other metal bodies within the equipotential bonding range does not exceed 3Ω, the equipotential bonding can be considered effective. If a pipe connection with poor conduction is found, jumper the wires again and test again.
9. Grounding device testing: The grounding device should check the material specifications, materials, installation location, connection quality, spacing, quantity, burial depth, grounding electrode connection method, anti-corrosion condition, etc. For grounding down conductors made of structural steel bars, the quantity, specifications, overlap length, welding quality, and welding conditions with connection points such as ground electrodes should be checked.
And use a ground resistance tester to check, and then conceal it after reaching the designed 1Ω.
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