Lighting process scheme for electrical construction

Mechanical use plan of immigrant complex building

Chapter I Project Overview

The first section engineering characteristics

This project is located in the south of Shen Yan Road and the east of Yantian River, Yantian District, Shenzhen. Yantian villagers' residence is adjacent to Yantian in the south and Yantian River in the west, covering an area of 5343m2 with a total construction area of 32,000m2. It consists of two towers, including Block A on the 20th floor and Block B on the 25th floor, with a height of 79.9 meters ... The design elevation of the basement on the second floor is 0.000, which is equivalent to the absolute elevation of 6.7m The buried depth of the basement is about 8.6m The foundation form is punched cast-in-place pile foundation, and the structural form is frame-supported shear wall structure.

Section 2 Construction Conditions

The planned road on the north side of this project can be used as the construction road exit, and the road on the west side of Yangang New Village Community can be used as the pedestrian passage and vehicle passage in the office area. During the construction of this project, measures must be taken to ensure the safety of pedestrians on the road in Yangang New Village Community, ensure the standardization, standardization and institutionalization of the construction site, reduce the construction interference such as silt layer and noise, and maintain and establish a good image of the enterprise.

The third quarter time limit for a project requirements

According to the construction period requirements of the construction unit, our project department has compiled a detailed construction progress plan. For details, please refer to the Construction Progress Plan of Shen Yan Second Passage Demolition and Resettlement Complex.

The planned commencement date is March 20th, 2009, and the project department will start independent construction on February 6th, 2009. The completion time of this project is 2011July 15, and the total construction period is 845 days.

The fourth quarter management characteristics and overall requirements

This project adopts the management form of project management and project manager responsibility system to conduct comprehensive construction management of this project. The project manager is responsible for the implementation of all the contract contents for the demolition and resettlement of the complex building in Shenyang-Yanshan Second Passage, and is specifically responsible for organizing various resources to achieve the contract objectives within the time required by the construction unit.

Section 5 Construction Procedure and Overall Arrangement

I. Construction Procedures

The key control of this project is the structural construction, which is carried out reasonably and scientifically.

The key to ensure the smooth progress of the construction is to arrange the construction sequence, organize the flow and interpenetration of working procedures, and reduce the mutual interference between working procedures. In structural construction, the construction procedures are as follows:

According to the architectural layout and structural characteristics of this project, it is divided into two large flow sections, starting from the second floor of the basement, in which block B is the main construction line.

Each superstructure has 1 flow section, and the whole project is divided into two flow sections. The construction period of standard layer structure in each water section is 5 days, and the concrete pouring time is staggered.

Second, the overall arrangement of the construction organization

First the main body, then the enclosure, first the structure, then the decoration, and then the installation and coordination of civil works.

Chapter II Construction Progress Plan

The first section construction site plan

My project department has compiled a detailed construction progress plan. For details, please refer to the Resettlement and Resettlement Progress Plan of Shen Yan Second Passage Complex.

The planned commencement date is March 20th, 2009, and the basement floor cushion construction will start from June 5438+February, 2009. The completion time of this project is 2011July 15, and the total construction period is 845 days.

My project department formulates the corresponding time limit for each division as follows:

1, 20 10, the basement structure was capped on June 20th, 20 10, and the structure of Building A was capped on February 30th, 20 10.

2. Masonry works started from 20 10 year125 October, starting from the second floor of the basement. Plastering works began two weeks after masonry, and the completion time was 20 1 1 year on April 29th.

3. Building A of roofing project starts from February 1 10, with a construction period of 40 days, and building B starts from February 20 1 10, with a construction period of 50 days.

4. Exterior wall decoration works in Area A started on February 20th, 201year, with a construction period of 70 days, and in Area B started on February 30th, 201year, with a construction period of 95 days.

5, large machinery in and out arrangement

The tower crane is installed in the basement. After the foundation pit excavation is completed, it is planned to be completed on February 5, 20 10. After the construction elevator is demolished, the tower crane demolition plan will start on June 30th, 20 1 1 year.

After the elevator is installed in the basement roof structure, it is planned to be completed on June 20, 20 10. After the construction of exterior wall paint is completed, it is planned to start dismantling on June 25th, 20 1 1 year.

After the structure of Zone B 10 is completed, the derrick will be installed. The installation is planned to be completed on September 20th, 20 10, and the external wall paint will be removed after it is completed. It is planned to be June 20th, 2010/year.

The third chapter mechanical equipment resource control plan

The first section machinery use schedule

Electrical equipment number, name, specification, model, unit quantity, entry time and exit time remarks

1 attached tower crane h336b12010.2.1201.6.15

2. Construction elevator SCD 20022010.6.152011.6.1

3 derrick JJM- 10 set 2 2010.9.20 2011.6.20

Four HBT-60 concrete delivery pumps and two 2010.2.10 2011.30.

5 Plate vibrator ZB- 1 1 station 2010.2.10 201.1.30.

6 plug-in vibrator ZX50 8 2010.2.10 2011.30

7 feeding platform 2 2010.2.10 201.1.30

8 steel bar straightening machine CT-6//KOOC-0/4 sets/KOOC-0/20/KOOC-0/.2./KOOC-0/0 20/KOOC-0/.30

9 Steel bar cutting machine GJ40- 1 Taiwan 22010.2.10 201.1.30.

10 GW32 steel bending machine 3 2010.2.10 201.1.30

12 rebar butt welding machine UN- 100 sets 22010.210 2011.30.

1 1 air compressor VHP400 sets 2010.3.20 2010.6.20

12 high-pressure water tank pumps DA 1- 100 sets12010.6.3201.7.10.

13 submersible pump kwis 50-30 8 sets 2009.12.252010.1.10.

14 welding machine BX 1-330-330 sets 3 2010.2.10 201.1.30.

15 mixer JZ750 sets 22010.8.10 20110.5.10.

16 transplanter department12010.12.25 2005438+00.6.20

17 Bouncing Car Part II 2010.3.20 2011.6.20

18-passenger freight car department12009.3.20 201.7.15

19 bus department12009.12.1201.7.15.

20 woodworking circular saw MJ 104 set 3 2009.3.20 201.1.20

2 1 total station1March 20, 2009 201.5.30

22 Grade II 2009.3.20 20115.30

23 theodolite1March 20, 2009 20 1 1.5.30

24 plumb hammer instrument 2 March 20, 2009 20 1 1.5.30

25 laser projector1March 20, 2009 20 1 1.5.30

26 woodworking planer MB 504b1201.3.20 201.20

Mechanical equipment staffing plan in the second quarter

Number Machine Name Number of Personnel (Person) Number Machine Name Number of Personnel

1 tower crane (H3/36B type) 3+6 = 9 10/0/

2 Construction elevator 2× 4 = 8 1 1 dumper 1

3 Derrick 2× 2 = 4 12 Woodworking Table Saw 4

4 concrete pumps, 4 sets 13 total station measuring and setting out, totally 8 people.

5 mortar mixer

(model 750) 4 14 level

6 loader 1 15 theodolite

7 Electric welding machine (BX-500-2) 4 16 plumb hammer instrument

8 High pressure water pump 2 17 bus 1

9 Bouncing Car 2

Chief Project Engineer (signature): Chief Cost Officer (signature):

Audit opinion:

Mechanical equipment rental center: date of audit: year month day.

Audit opinion:

Engineering Department: Date of Approval: MM DD YY.

Audit opinion:

Chief Engineer: Audit Date: MM DD YY.

Audit opinion:

Deputy general manager: date of approval: year month day.

In the third quarter, mechanical construction plan declaration plan

The installation and disassembly scheme of major large-scale construction machinery involved in this project is prepared by the project technology department in conjunction with the leasing department. The plan is as follows:

Number scheme name preparation department declaration time

2 Installation and disassembly scheme of tower crane (H3/36B type) Mechanical leasing department 20 10. 1. 10

3 1 # Elevator Installation and Dismantling Scheme Mechanical Leasing Department 20 10.5.20

4 2 # Elevator Installation and Disassembly Scheme Mechanical Leasing Department 20 10.5.20

5 1 # Derrick Installation and Dismantling Scheme Mechanical Leasing Department 20 10.5.20

6 2 # Derrick Installation and Disassembly Scheme Mechanical Leasing Department 20 10.5.20

7 Emergency Plan for Overturning of High-rise Building Machinery Mechanical Leasing Department 20 10.3.20

Chapter IV Construction Plan

For details, please refer to the attached drawings: Basement Structure Construction Layout, Main Structure Construction Layout and Decoration Construction Layout of Deep Salt Second Passage Demolition and Resettlement Complex Building.

The fifth chapter machinery cost pre-control indicators and instructions

See the next page for details.

Chapter VI Safety and Risk Prevention of Mechanical Equipment

A, tower crane safety and risk prevention and requirements

1 H3/36B tower crane is adopted in this project, and the boom of the tower crane is 60m long, and the rotary range includes Yangang New Village, residential road, living area and office area. The following measures should be taken to ensure safety.

1. Set the rotary limit (including voice alarm) to control the crane boom to enter Yangang New Village.

2. When the front arm of the tower crane enters the residential road, a voice-activated prompting device is set to strengthen the lookout and command to avoid the lifting objects from entering the road section.

3. When the front arm of the tower crane enters the living area, set up a voice-activated prompt device to strengthen the lookout and command, and try to avoid lifting objects from entering the area.

4. The foundation of this project is pile foundation with complicated geological conditions. The tower crane pile foundation is designed according to the technical parameters of the tower crane provided by the manufacturer, and steel bars and embedded parts are installed to ensure a solid foundation.

Other considerations are as follows:

1. Before installation and disassembly, we must carefully study the operation plan, divide the work in strict accordance with the erection procedures, and conduct unified command.

2, tower crane installation must ensure the stability of the installation process under various conditions, must use special bolts, shall not be arbitrarily substituted.

3. The arrangement and spacing of the wall parts attached to the tower crane shall comply with the provisions of the manual.

4. The tower crane must be installed with safety devices such as lifting moment limiter, lifting weight limiter, amplitude limiter, lifting height limiter and rotation limiter in accordance with the current national standard Safety Regulations for Tower Cranes (GB5 144) and specifications.

5. In order to prevent accidents, the tower crane must be installed and disassembled by a qualified professional team, and the driver must hold relevant certificates. After the installation is completed, it will be put into use after passing the acceptance by the special equipment safety testing center of the Technical Supervision Bureau or the safety supervision station of the Construction Management Bureau, and make a good record.

6. When the tower crane driver operates, he must operate in strict accordance with the operating procedures, and illegal operation is not allowed. "Ten Don't Hang" must be strictly implemented. Before operation, there must be safety technical disclosure records and signature procedures.

7, tower crane installation, jack-up, demolition must first prepare the construction plan, approved by the project chief engineer.

8, all scaffolder must hold relevant certificates, ten wear personal protective equipment, construction in strict accordance with the plan, completes the tower crane node installation, to prevent the collapse of the shelf.

Second, the elevator safety and risk prevention and requirements

1. During the installation, it is absolutely forbidden to use the elevator with the installer.

2. To drive the hanging cage to run, the button box or operation box must be moved to the top of the hanging cage for manipulation, and manipulation is not allowed in the hanging cage.

3, wind speed > is not allowed; 13m/s and severe weather conditions such as lightning and rainstorm.

4. When using the installation boom set at the top of the hanging cage for installation, the maximum lifting weight of the boom is 200KG, and overloading is not allowed. The load of the hanging cage is also not allowed to exceed the rated installation load.

5. No one is allowed to be under the rotating crane.

6. When the hanger is installed on the derrick, the hanging cage shall not be started.

7. When the hanging cage is running, the head, hands and transported objects of personnel are absolutely not allowed to extend out of the hanging cage guardrail.

8, unless the total power supply has been completely cut off, otherwise can't let anyone in the fence on the ground, on the top of the fence or leaning on the fence, and in the elevator passage, rail frame column and wall frame and other unsafe places.

9. Unless the misoperation prevention switch of the additional button box is turned to the stop position or the emergency stop button on the operation box has been pressed, the installation work shall not be carried out at the top of the hanging cage.

10. Any incompetent personnel are not allowed to do electrical wiring work, and the power supply must be cut off during this work.

1 1. Do not drive the hanging cage until all the connecting bolts are completely fastened and the lifting appliance is removed from the newly installed standard joint.

(2) Safety measures for elevator operation

1, wind speed >; 20m/s, don't operate the elevator.

2. Do not operate the elevator before confirming the "daily safety inspection" and "maintenance and repair".

3, hanging cage load and the number of passengers are not allowed to exceed the rating specified on the sign.

4, can't let the goods beyond the hanging cage. When the joint is added, the suspender set at the top of the hanging cage should be removed.

5, in addition to the driver, the cab is not allowed to carry other people or goods.

6, ensure that all protection and safety devices can work normally, otherwise the elevator shall not run.

7. Confirm that there are no obstacles and personnel in the hanging cage and heavy passage before operating the elevator.

8. When the elevator is running in the cage, no one is allowed to be at the top of the cage.

9, found fault or endanger the safety of the situation, should immediately report to the site safety director; Don't operate the elevator until the fault and the situation endangering safety are eliminated.

(3) Other safety requirements

1. Before installing the elevator, the installer must carry out strict visual inspection on the installed parts, and the parts damaged during storage, transportation and installation must be repaired or replaced.

2. After the foundation of the elevator is poured, the elevator can only be installed after the concrete reaches 80% strength, and the installation usually takes 7-8 days.

3, the construction of elevator operators must be trained, have a license, elevator listing clear specialist is responsible for the operation, the elevator must be formulated in the process of using safety technical operation procedures, put signs and warning signs in eye-catching parts.

4. When the elevator is installed, take the elevator as the center, set a warning zone with a radius of 10 meter, enclose the warning zone with ropes, and hang signs, and be guarded by full-time security officers, and other personnel are not allowed to enter.

5, elevator installation should have professional and technical personnel present, installation personnel should be trained and show certificates.

6. After the elevator is installed, it shall be inspected and accepted in strict accordance with the specifications, and the test report shall be submitted. It can only be used after it is accepted by the competent department. In the process of use, we should operate in accordance with safety regulations and strengthen management.

7. After the elevator is installed, it shall be accepted by the relevant departments and meet the safety requirements before it can be put into use.

8, the elevator must carry out daily safety inspection and regular inspection and test.

9, elevator operators should abide by the job responsibilities, strictly abide by the job, after stopping work, should put the hanging cage on the ground, pull down the electric knife, lock the electric box, and leave the post after ensuring safety.

10, installation and driving personnel must strictly abide by the safety regulations for aerial work, that is, wear safety helmet and safety belt, and wear non-slip shoes.

Three. Derrick safety and risk prevention and requirements

1. Except one side near the floor, three sides of the derrick must be covered with safety nets.

2. Before installing the derrick, the installer must conduct strict visual inspection on the installation site and repair or replace the damaged parts during storage, transportation and installation.

3, the operator must be trained, using hanging cage, automatic tipping bucket, hoist electric operating system, etc. , must be familiar with its operating procedures to ensure safe production.

4. It is forbidden to carry people into the hanging cage. No one is allowed to enter the steel pipe derrick when the hanging cage or skip is running or parked in the floor gap. Safety regulations must be strictly observed.

5, must set up reliable safety stop device and broken rope protection device.

6. The hanging basket should be provided with a safety door to prevent materials from falling during transportation. Double-layer superelevation limiting device should be installed at the top of the derrick to make the hanging basket play a role in limiting power failure.

7, all circuit equipment and circuit installation should comply with the specification requirements.

8, derrick installation, demolition, should set up a warning zone, warning zone with guide rail as the center, the radius of 10 meters, and set up rope loops, hanging signs, supervised by full-time security officer, other people are not allowed to enter the site.

9, derrick installation, demolition should have professional and technical personnel present, installation, demolition personnel should be trained and show certificates.

10. After the derrick is installed, the inspection and test report shall be carried out in strict accordance with the specifications, and it can only be used after it is accepted by the competent department. In the process of use, we should operate according to the specifications and strengthen management.

1 1. Derrick removal is contrary to the installation procedure, and it is removed one by one from top to bottom.

Technical specification for secondary wiring

Scope of application: 1 Suitable for secondary wiring of high and low voltage switchgear, power box and three boxes (distribution box, metering box and terminal box).

2 General requirements for insulated wires and cables of secondary circuit:

2. 1 The working voltage of insulated wires and control cables in the secondary circuit shall not be lower than 500 V. ..

2.2 In addition to the electromagnetic closing coil of the circuit breaker, copper core control cable and insulated conductor shall be used for the measurement, control and protection circuits. In other cases, when all indoor equipment, instruments and terminals are equipped with cables and insulated wires dedicated to connecting aluminum cores.

2.3 According to the requirements of mechanical strength, the minimum cross section of cable core or insulated conductor is: the copper wire connecting the high-voltage terminal is not less than1.5mm2; ; Aluminum wire should not be less than 2.5mm2；; The diameter of the copper-core cable used by the moving device connected to the weak current terminal shall not be less than 0.5mm2 ..

2.4 The selection of insulated conductor and cable core section shall also meet the following requirements:

A) Current loop: the current measuring loop shall ensure that the instrument works within the specified accuracy range, and the protection loop shall ensure that the current transformer works within the error range of 10%.

B) Voltage circuit: The voltage loss from the voltage transformer to the meter shall not exceed 0.5% of the rated voltage. Under normal load, the voltage loss from voltage transformer to measuring instrument should not exceed 1~3% of rated voltage. When all protection devices and instruments are working (that is, the voltage transformer is under the maximum load), the voltage loss from the voltage transformer to the protection and automatic screen should not exceed 3% of the rated voltage.

C) Control loop: Under normal maximum load, the voltage loss from the control bus to each device should not exceed the rated voltage.

10%。

D) Oil-resistant insulated wires and cables should be used where insulated wires and cables may be immersed in oil.

3 Wiring requirements in the screen:

3. 1 The internal connecting wires of the screen generally adopt plastic insulated copper core wires.

3.2 For the shield installed in a dry room, the internal wiring can be insulated wire without protective layer, which can be directly laid on the metal shield with antiseptic surface.

3.3 The wiring between devices of the same installation unit in the screen generally does not pass through the terminal board.

3.4 Insulated wires and cables connected to terminals and equipment shall be marked.

4 Process preparation

4. 1 Understand the drawings and standards and carefully consider the wiring scheme.

4.2 According to the task nature and product technical requirements, collect the wire varieties that meet the requirements of the drawings.

4.3 Obtain the required number of installation parts, such as wiring board clips, pressure plates and fasteners.

4.4 Check whether the electrical components of the secondary circuit are complete and whether the models and specifications are consistent. If you find any quality problems such as chipping, rust and mildew on the surface of electrical appliances, you should contact the warehouse to return them.

5 process

5. 1 Electrical components can only be installed with certificates.

5. 1. 1 instrument: Install the instrument on the instrument panel as shown in the figure.

5. 1.2 relay: the relay connected behind the board. First, screw the connecting screw to the terminal and press it down with the nut. For the relay connected in front of the board, the wire guide is installed at the terminal and needs to be tightened with a spring washer. Be careful not to slip your teeth. If there are sliding teeth, the insert or the entire relay must be replaced. If it is found that the screw hole of relay terminal insert is blocked by bakelite, it can be tapped before use.

5.2 Other secondary circuit components, such as signal lights and buttons, shall be installed in the switchgear according to the drawings, and shall be vertical, tidy and firm.

5.3 Terminal board and clamp

5.3. 1 Select terminals and terminal holders according to the drawings.

5.3.2 Fix the base in the proper position of the switch cabinet, and insert the terminals into the base in turn.

5.3.3 The clamp shall be installed on the leg according to the actual number of teeth. If it exceeds the sixth gear, it must be arranged in two ways. When the position is limited, it is allowed to use a circular fixture to round the wire harness.

5.4 The test line shall be cut according to the required length, and the cut material shall be tightened and straightened.

5.5 Bundle the general route from top to bottom, put it in the trunking, or arrange the cables externally. The total routing bundle is required to be arranged in a square or rectangle, and then branched. Put the straight wire harness up and down into the external gear, and the winding wire harness up and down (elbow) enters the internal gear in turn. The wire harness should not cling to the metal surface, and must be suspended for 3 ~ 5 mm. The wire harness should be fixed with steel cardboard, glass fiber board or colored tape (or binding tape) at intervals, without shaking.

5.6 For the shunt part, connect the end that can be connected first, bend the elbow into a corner by hand, walk in a straight line, and be horizontal and vertical.

5.7 The wiring harness from the shunt part to the relay should be horizontally centered and separated on both sides. Each wire to the relay terminal should be connected with a small loop potential margin, and the loop potential of various relays connected in the same screen should be consistent. See figure 1.

Figure 1

Figure 2

5.8 The wiring harness from the shunt part to the double-row instrument can be arranged in a square with the middle branch line. See figure 2.

5.9 See Figure 3 for the wiring harness layout from the shunt part to the single-row instrument.

Figure 3

5. 10 The wiring harness layout from the shunting part to the buttons, signal lights, fuses, control switches and other components shall, in principle, walk in a transverse symmetry, as shown in Figures 4 and 5. However, due to the limitation of location, it is allowed to take a straight and symmetrical road.

Figure 4 Figure 5

5. 165438+

6 wiring

6. 1 Use wire stripping pliers to strip the head according to the required length and wire diameter without damaging the surface of copper wire.

6.2 Select the corresponding wire number group according to the wiring diagram, and the wire number group is not allowed to be reversed.

6.3 Set the wire number sleeve, and the distance between the end (or cold-pressed wire nose) and the wire number sleeve is 2mm. The claw ring should be bent into a whole circle, the direction should be in the tightening direction, and its inner diameter should be 1~2mm larger than the diameter of the fastening screw. See figure 6.

Figure 6

6.4 For more than two threads, put a flat washer between the two threads; When multiple wires are connected to the terminal, if the lead screw is long enough, it is allowed to use a bowl washer plus a spring washer, leaving out a flat washer.

7 seasonings

7. 1 Tie one wire harness every 100~200mm and fix it with fastening tape.

7.2 In order to prevent the wire harness of the moving part from rubbing against the metal, in principle, all wire harnesses should be wrapped with binding wires.

8 check

8. 1 terminal screw is loose.

8.2 Whether all lines are flat, straight and firm.

8.3 All terminals without component connection shall be equipped with screws or nut washers.

9 others

9. 1 When the conductor passes through the hole of the iron plate, the protector with appropriate size should be fastened, such as rubber band and insulating tube.

9.2 All threads that need to be welded must be welded firmly, and there shall be no false welding.