Author introduction: Wang Duan
Part I fiber optic cable line construction specifications
General principles of the communications systems engineering industry construction standards, fiber optic cable line project construction quality inspection, with the work of the inspection and acceptance of the completion of the project should be
Conform to the "China's communications systems engineering industry construction standards fiber optic cable line Engineering Acceptance Specification" and other relevant national line engineering construction
Work and acceptance of the technical specifications of the requirements of the construction in accordance with the implementation.
Section I poles and wires
Article I
Routing: lines and buildings, highways, trucks through the countryside, railroads and other lines (power lines, broadcasting lines
and other communication lines) parallel to the intersection of spacing should be in line with the long-distance communication lines specified requirements.
Second
Selected according to the routing and terrain and environmental changes in the characteristics of the determination of the pole (standard pole distance of 50 meters), the configuration of the pole height (standard pole height
8 meters), poles shall not wear iron caps elevated. Pole road should avoid sharp turns and right-angle (table angle) turns.
Article 3
Crossing angle shall not be arbitrarily changed, and the railroad crossing angle should be greater than or equal to 45 degrees, and other communication lines crossing should be greater than or equal to
30 degrees. Poles should be located in the sidewalk side of the green belt or highway drainage ditch outside one meter away.
Article 4
The depth of the pole must meet the requirements of the regulations, pole hole depth shall not exceed plus or minus 5 centimeters. Pole in a straight section of all poles must
become a straight line, shall not occur eyebrow bend, S bend phenomenon. Pole slightly before and after, left and right deviation shall not exceed 13 pole slightly. Pole erection
straight, pole root left and right shall not exceed 5 centimeters.
Article 5
The pulling line shall be stranded wire, its program should be pulled according to the wind using 72.2 stranded wire.
Sixth
The position of the pulling line hoop on the pole: terminal pull, top head pull, corner pole pull, along the line expansion pull are installed in the top of the hanging line hoop.
Windproof pull, side pull line installed in the lower part of the hoop. The distance between the hoop is 10 cm ± 2 cm. Pulling distance
than equal to 1; shall not be less than 0.75.
Article 7
Pulling line tie handle are used 3.0 wire another winding method or U-shaped clevis fixed, the end must be sealed. Each tie must be tightly and evenly wound,
No obvious flare.
Section II hanging line
Article 1
In order to ensure that the cable and the ground spacing requirements, the hanging line should be installed from the top of the pole 40 to 60 cm is appropriate (except in special circumstances), the same
a straight line on the hanging line should be installed in the same horizontal line.
Second
Suspension line is generally used 72.2 stranded wire. Hanging line original droop can only be less than the specified value and can not be greater than the specified value.
Article 3
Pole distance in 70 to 120 meters for the spanning file, the pole should be installed on the auxiliary hanging line. Auxiliary cable program should be larger than the official cable level
appropriate. Auxiliary hoisting line should be installed in the official hoisting line above 60 centimeters, the middle of the pole stalls set 2 to 3 places to connect iron will be the vice hoisting line connected
connection.
Article 4
Pole distance of 120 meters above the flying line, its construction requirements according to the design.
Article 5
Hanging line connection should be used 3.0 iron wire another winding or U-shaped clevis fixed method.
Article 6
The corner depth of the inner corner of the hanging line in the 3 to 8 meters with 4.0 iron wire as a tie-down auxiliary device. Corner depth of more than 8 meters with stranded wire as an auxiliary
device, stranded wire is generally 50 centimeters - 60 centimeters long.
Article 7
When the change of slope is large (110 poles), it should be equipped with pitch and elevation auxiliary devices.
Article 8
The inner corner lifting line auxiliary line and the pitch, elevation angle auxiliary line shall be stressed at the same time with the main lifting line.
Appendix: Communication Pole and Road Engineering Process Inspection Table
Serial No. Inspection Items Technical Requirements Importance Inspection Results
One Pole
1 Position of Pole and Depth of Hole 7m pole: 1.3m for ordinary soil, 1.2m for hard soil, must be inspected
2 Verticality of Pole Pole Pole itself shall be vertical up and down; must be inspected
3 Angle of Pole The value of internal displacement of cement pole is 10-15cm; optional inspection
4 Return soil tamping of pole holes Return soil tamping of pole holes must be inspected
5 Pole number The pole number is 2.5m from the ground, facing the highway, and arranged from A end to B end; generally, one relay is the unique
numbering. Must be inspected
6 Across the power line two poles need to do direct burial grounding protection 4.0 grounding wire must be covered with a plastic pipe, and grounding rod welding Must be inspected
Second pulling line and bracing rods
1 pulling line program, specifications, quality The two sides of the pulling line with 72.2 galvanized stranded steel wire, the angle rod pulling line usually 72.6 galvanized
stranded steel wire Must be inspected
2 Pulling line orientation and wrapping clamping specifications Pulling line and wrapping clamping specifications Pulling line and wrapping clamping specifications Pulling line and wrapping clamping specifications Wrapping and clamping specifications pulling the line solidification method has another wrapping method, clamping method, card solid method three, to design for
quasi-construction. Must check
3 ground anchor quality, out of the ground and displacement (1) ground anchor block should have steel distribution, ground anchor block size: 60 × 40 × 15
cm (2) the depth of the ground anchor pit, usually deeper than the pole hole about 10 cm, measuring way to measure (pulling the wire liner out of the ring 60 cm, the error
difference is not more than 5 cm)
(3) the ground anchor handle Out of the ground point deviation to be less than 5 centimeters. Must check
4 Pulling pit back to the soil back to the soil should be tamped soil must check
5 Pulling line, bracing distance, height ratio Pulling distance ratio is usually 1, shall not be less than 0.75, shall not be greater than 1.25; due to the terrain location
restrictions of less than 0.75, should be used in a higher specification of stranded steel wire. Selective inspection
Three hanging line
1 hanging line specification hanging line is usually used 72.2 galvanized stranded wire, must be inspected
2 erection position is usually from the top of the pole 40-60 cm, under special circumstances from the top of the pole 25 cm. Optional inspection
3 installation specifications (1) the connection between the hanging line need to add egg-shaped isolation electronics (specifications 5 tons);
(2) hanging line per kilometer need to be directly buried ground connection Must be inspected
4 Hanging line end and the quality of the connection Hanging line in the terminal pole and the corner of the depth of more than 15 meters, should be done when the end of the end. Optional inspection 5 hanging line auxiliary device quality When the adjacent pole slope change for pole distance 5% -10%, need to install hanging line elevation, pitch angle auxiliary device. Mandatory inspection
6 hanging line of the vertical Temperature 20 ℃, pole distance of 50 meters, under light load, 72.2 stranded steel strand original verticality of 18.2 cm. Mandatory inspection
7 Installation of power protection sleeve The length of the power protection sleeve is 1.5 m at each end of the power protection sleeve must be inspected
Note: "Inspection results" column fill in the "all qualified", "x% qualified "or" unqualified "
Section III fiber optic cable
Article 1
Distribution of excessive bending is not allowed. The bending radius shall not be less than 20 times the outer diameter of the fiber optic cable. Do not allow small buckle "α" and twisting phenomenon, shall not damage the outer protective layer of fiber optic cable.
The second
Cable deployment should be in the corner of the pole, the four-way pull for a reserve. Reservation and the pole close to the use of leather wire or dissected plastic pipe sleeve protection cable 40 cm, and bundled with the pole.
Third
Cable hooks should be selected according to the outer diameter of the cable. Hook spacing of 50 cm ± 3 cm. Hooks in the direction of the buckle on the hanging line should be the same. Hook pallet complete, flat, tilt shall not exceed 30 degrees.
Article 4
Overhead fiber optic cable across 380V, 220V power lines, should be used to insulate the line for insulation protection board. The length of the insulating board shall exceed one meter each of the power line sideline.
Article 5
Fiber optic cable connector box should be installed in 50 to 100 centimeters from the pole, with the connector box hoop will be fixed in the connector box on the hanging line.
Article 6
The residual line on both sides of the joint box shall be 8 to 20 meters. Fix the residual line with a reserve frame on the opposite side of the two adjacent poles of the joint pole. Remaining line should be coiled into a round shape and bundled neatly and firmly.
Section IV fiber optic cable connection and installation
Article 1
Engine room end, the installation of client-side fiber optic cables, according to the design, leave enough length at the time of installation.
Second
The fiber optic cable in the server room end, the client terminal form: ① ODF frame; ② hub box; ③ fiber optic terminal box, etc., in strict accordance with the equipment manual operation, pigtail and fiber optic cable splicing is connected strictly in accordance with the order of design, and at the same time in the pigtail labeling, and make a good record.
Article 3
Fiber optic coiled in the fusion splicing disk should be greater than the specified radius of curvature, the use of fiber optic cable in the fiber optic connection, the connection loss should be consistent with the design requirements. In the fusion splicing test, must be strictly with OTDR meter test. (Taking into account the current actual situation, the Ministry to arrange for OTDR instrument testing)
Article 4
Cable splicing:
1)Cable splicing content: fiber optic splicing, reinforcing the core, the fixing of the sheath, the measurement of the joint loss, the encapsulation of the connector box, and the installation of the connector protection.
2)Fiber optic cable joints should be checked before the cable program selection of the joint box, according to the length of the joint reserved peeling.
3)Cable stripping in the connector box bracket should be firmly fixed, do not damage the optical fiber. The environment should be clean, fiber core splicing must be
designed in the order of the corresponding phase connection, no error. Especially divergent joints when the cable according to the provisions of the connection and make a good record. Aerial fiber optic cable joint box to strengthen the core is not grounded, not connected.
4) with a fusion splicer for core splicing, fiber optic splicing of the whole process should be taken to monitor the quality, and can estimate the joint loss. In order to ensure the quality of the splicing, the construction of the application of OTDR monitoring, measuring the splice loss, while recording the splice point to the test point of the core distance. Ensure that the average loss of fiber optic splicing to meet the provisions of the design documents.
5)Fusion splicing core protection with heat shrink tubing, optical fiber in the fusion disk fixed and coiled radius of curvature should be greater than 37.5mm, to avoid additional attenuation of 1.55μm wavelength. After coiling the core is fixed with tape in the fusion disk.
6) When encapsulating the fiber optic cable connector box, the sealing tape should be filled, the fiber optic cable connector box fastening screws should be tightened, the sealing performance should be good, to ensure that no water ingress. In the case of no leakage can be erected to the pole, or buried in the hand hole.
Part II cable line construction acceptance specifications
Section 1, the construction of five categories of lines in the building
Article 1
The five categories of lines in the building of the client's layout according to the customer's recommendations, to the operation of the neat specification.
The second
The five categories of wire in the shaft as far as possible to go to the bridge, if not possible, then in the shaft of the vertical deployment, with the tie wire bundled firmly.
Third
If there is no shaft in the building, the need for wiring along the wall outside the building, it must be operated in accordance with the specifications, fixed with a wire card, a meter with three wire cards, and to make the appearance of neat, does not affect the building's fa?ade.
Article IV
Client and switch category 5 line must be labeled, indicating the name of the unit and switch port number. And test with a category five line tester to ensure that the line is open.
Section II: Outside construction of cables
Article 1
Outdoor cable deployment refers to the deployment standards of fiber optic cables.
Article 2
The cable placement on the client side will be done according to the client's suggestion, and the operation will be neat and standardized.
Article 3
When wiring along the wall outside the client's building, it must be operated in accordance with the standard, fixed with cable cards, one meter with three cards, and to make the appearance of neat and tidy, without affecting the fa?ade of the client's unit.
Article 4
The cables of the client and the uplinked information building must be labeled with the name of the unit and the information of the uplinked building. And test with a cable tester to ensure that the line is smooth.
Part III Construction specification of handover box
I. Construction specification of new handover box
1. Construction specification of overhead handover box:
Operation process: selecting the location - erecting the pole - fixing the channel steel - lightning protection and grounding - measuring the level - installing station - installing handover box - cleaning up the site Specific considerations:
(1), Choose a reasonable location to install the handover box, there needs to be enough installation space.
(2), according to the fixed position spacing of the channel steel, to determine the reasonable spacing of the poles, digging 1.2 ~ 1.3 m deep pole pit, standing 8 m poles on both
The side of the disk fiber, the left side of the upper fiber, the pigtail shall indicate the name of the unit and the date of construction (the name of the unit should match the name of the unit of the mission statement).
2), access to the cable residual cable shall not be hung on the transfer box.
3), the transfer box capacity of 12 cores of direct-fusion disk, access to fiber optic cables into the box fusion splicing, in principle, need to use the full capacity of direct-fusion disk before the use of new disks.
Part IV voice project construction specifications and management requirements
1. After the completion of the survey, the construction contractor should be submitted within two working days in accordance with the communications industry standards for a complete construction program, the program should be complete and feasible. The program includes the name of the person in charge of construction, schedule, materials and accessories used, construction content and structural topology diagrams, plans and other relevant drawing information. If the project has opened the data application before, the data and voice should be considered as a whole system. Projects that have not opened data applications should consider the placement of data lines in the vertical wiring.
2. After the completion of the survey equipment manufacturers should be based on the customer's existing resources within two working days to submit the equipment configuration program, the program should be complete and feasible. Program content includes the name of the person in charge of construction, schedule, the model of the equipment used, the main devices and accessories, equipment schematic and structural topology diagrams, solutions and other related drawings;
3. Survey completed outside the construction vendor should be submitted within 2 working days after the routing diagrams of the outside line, the exact number of the handover box.
4. Construction process in strict accordance with the construction design and acceptance of standard specifications. Netcom engineering department will reduce or cancel the construction project of the contractor who does not follow the construction program, whose construction quality does not meet the standards and who delays the completion of the project without special circumstances.
5. During the construction process, the part of the original program that really needs to be modified should be notified to the relevant personnel of Netcom by means of a construction contact form, and the construction can be continued only after confirmation.
6. construction process, such as the need for third-party cooperation, should be notified early agents and Netcom personnel, consulting with the specific details of the project, so that all parties to rationalize the arrangements for mutual support, with the construction. If it involves a shared cable shaft, equipment room and technical mezzanine and other public occasions, we must focus on research, and agents to properly deal with such issues.
7. The construction personnel with the construction orders, and show the relevant certificates to the property management department. Line construction requirements with Netcom's relevant project leader signed the construction order to enter the construction, the construction order should be a copy of a copy of the agent through the property management department; installation of construction needs to be based on the "installation of construction orders" to enter the construction; construction personnel uniformly wear badges, civilized construction.
8. Do a good job of testing the line to ensure that the link is smooth, in line with the requirements of the indicators; early discovery of the problem, such as the need for Netcom to assist in solving, should be informed of the relevant personnel in a timely manner.
9. Strengthen the management of construction materials and accessories, according to the need to receive, to avoid man-made damage or loss, so as not to delay the construction progress and economic losses.
10. All construction personnel to strengthen the safety of construction and civilized management education, the implementation of construction safety officer, strengthen supervision, clear responsibilities at all levels, to achieve civilized construction, safe production, and strive not to casualties.
11. Construction should be installed after the end of the construction of the remaining equipment and equipment and cable inspection and organization, categorization and proper storage, the completion of the transfer to the netcom operations and maintenance personnel. At the same time to clean up the construction site, keep the site clean and tidy.
12. Strengthen the management and organization of all kinds of documents during the construction process. Detailed records and organize the construction process of raw data and information, as an attachment to the completion of the document.
13. After the completion of the project within 15 working days, the completion data will be organized and filed, and handed over to the relevant personnel of Netcom. Completion information includes "Summary Table of Installation Quantity", "Engineering Description", "Opening Test Record", "Completion Drawing", "Engineering Change Order", "Major Engineering Quality Accident Report Form", "Detailed List of Installed Equipments", "Commencement Report", "Certificate of Acceptance", and other kinds of engineering documents.
14. Before the start of the installation of construction are required to notify the agent to send staff to the site during construction, to coordinate the construction process of the accident.
15. Installation of the construction process in strict accordance with the information provided in the construction order to carry out construction, shall not be changed at will. No special circumstances must be completed within four working days, when there is a number segment or installed address error and other special circumstances should be promptly notified to Netcom engineering
Department. If there is a late installation is not completed, need to have a reason to explain in advance; if unauthorized changes in the construction content, thus causing billing disputes or user complaints caused by the loss of the construction unit to bear. For the construction team Netcom engineering department will be reduced or cancel the construction of the contractor's installation tasks.
16. We will try our best to meet the reasonable requirements of the users during the construction, and do the construction in a civilized way and treat people politely. Restore the original appearance of the site after construction is completed, and do a good job of cleaning the site after completion.
17. The documents involved in the construction are: "Survey Task List", "Customer Survey Resource List", "2M Resource Application Form", "Departmental Contact List", "Installation and Opening Form", "Distribution Frame Information", "Construction Program", "Equipment Application Program", "Voice Access Program", "Project Feasibility Report", "Construction Progress Table for Voice Private Line", "Notice of Removal and Replacement of Voice Equipment", "Notice of Removal and Replacement of Voice Equipment", and "Project Feasibility Report". Notice", "Voice Business Equipment Commissioning Task Sheet", "IP Supermarket Cable Project Task Sheet", "Server Room Construction Task Sheet", "Voice In-Building Cabling Project Task Sheet", "Building Installation Summary Sheet", and "Construction Contact Sheet for IP Private Line In-Building Users".
Part V Hotel Construction Management Specification
General
In order to cooperate with the company in the hotel digital TV panning and triple-play work of the market to promote and business negotiation
The work of the smooth development of the hotel, but also in order to the hotel's broadband network and broadcasting and television network renovation or new construction of a substantial increase in the situation of better maintenance of the company's image, improve service quality, and in time to improve the quality of service, and to improve the quality of service, and to improve the quality of service. Image, improve the quality of service, as well as timely response to market demand, the completion of the relevant projects on time and in quantity, the Department has developed this management system to regulate the construction behavior, construction quality, construction technology, to achieve "rules to follow, rules to follow".
Construction management
The hotel engineering management personnel received the remodeling task, drafting the project task book, the task book to explain the content of the installation, the time to enter the field. Engineering task book by the hotel engineering management department relevant personnel issued to the installation unit. The construction unit shall not undertake the installation task of the remodeling project and set-top box installation project without the engineering mission statement.
Installers in the hotel during the installation, all installers clothing must be uniform, neat, must wear a work plate, pay attention to civilized language, enter the guest room needs to be accompanied by the store personnel, no store personnel present shall not enter any room. After the installation of a single guest room, the store personnel should be the last to leave the guest room, and lock. When you leave the room, take away all the garbage produced by the installation.
Should abide by the hotel's work and rest time, do not leave without permission on the way of installation, do not make a lot of noise in the hotel, floor up and down to use the staff elevator, do not use the hotel elevator and do not enter and exit the hotel lobby without permission.
Each project, the construction unit must have an on-site installation management personnel, as the installation management personnel, for the installation of technical problems, in a timely manner to be resolved on-site, if the site to resolve the difficulties, the first time to notify the project manager, the project manager to arrange for personnel to solve the problem. Afterwards, the project manager should get the feedback on the solution of the problem.
On-site installation management personnel, should effectively take up the installation of personnel and hotel management between the communication link. To explain to the hotel management personnel some of the installation process of all kinds of hotels need to cooperate with the work.
Set-top box installation period, installation managers should be held twice a day on-site morning and evening installers meeting, the installation tasks and summarize the installation of the day, and at the same time record the daily on-site installation of the situation, the next day to the project manager to report to the project manager of the work during the transformation of the network should be set up to the daily report system, the daily timed to report to the hotel project management personnel on the work situation of the day as well as the work of tomorrow's arrangements to allow project management personnel to understand the site transformation in a timely manner, so that the project management personnel. So that the project manager can understand the on-site reconstruction situation in time and make the next step of work instructions. After the construction work is finished, the completion data should be submitted within one month.
Construction process:
A, wiring
1. network cable, telephone line test: respectively, do crystal head, with a network tester (FLUKE) test break;
2. cable TV line test: test break with a multimeter;
3. other cables: with the corresponding professional instrumentation to test the pass;
4. Estimate the length of the switchboard to the end of each point;
5. All types of cables will be cut to a certain length and then labeled on both ends of the line, and indicate: the type of weak electricity - room - serial number.
6. Need to add PVC pipe, confirm the number of lines in the pipe: the cross-sectional area of the line in the pipe shall not exceed 80% of the cross-sectional area of the pipe.
7. If you need to groove, first determine the groove route, follow: the principle of the shortest route, do not destroy the original principle of strong electricity, do not destroy the principle of waterproofing. Then determine the width of the slot: according to the number of signal lines to determine the number of PVC pipe, and then determine the width of the slot. Then determine the depth of grooving: if you choose 16mm PVC pipe, the depth of grooving is 20mm; if you choose 20mm PVC pipe, the depth of grooving is 25mm. Wire groove appearance requirements: horizontal and vertical, uniform size.
Two, network equipment installation:
1. Cabinets, hubs, switches must be installed in line with the requirements of the installation of the server room, all types of wires must be organized, preferably equipped with wire racks, so that the entire residual line looks neat, beautiful.
2. Each switch needs to be labeled, and routers and core switches also need to be labeled with Hangzhou Netcom's asset labels.
3. Whether the output signal of the optical machine is between 95-105dB, the difference between high and low frequency is not more than 5dB.
4. The output signal of each amplifier needs to be between 95-105dB, and the difference between high and low frequency is not more than 5dB.
Three, the set-top box installation
1. Attention to installation process should be paid to the installation of set-top box, all lines shall not be dragged behind the TV set. All the lines should not be dragged behind the TV set, and should be organized;
2. After installation, the set-top box should be powered on and tested to check whether all the channels can be watched normally, and in particular, it is necessary to check whether the foreign stations are in line with the number of authorized programs.
3. Check the authorization information of the set-top box to make sure that the set-top box is authorized to receive normally; after the installation is finished, register the set-top box number and the room number, and ask the store personnel to accept and sign on the spot to confirm the end of the installation.
4. Check whether the 2-in-1 remote control is all learned, the total **** there are six keys need to learn.
5. In the process of installation, the guest room which has installed the set-top box, due to the failure of the set-top box, need to replace the set-top box, the construction personnel need to re-correspond to the new set-top box number and the guest room number, and make a record.
5. After the completion of the transformation of the entire hotel, the construction unit needs to cooperate with the project management personnel to carry out pre-acceptance. After the pre-acceptance, notify the maintenance department colleagues formal acceptance.
7. Formal acceptance, the construction unit needs to be submitted to the hotel completion information (electronic version) to the project management personnel, and then forwarded by the project management personnel to the maintenance department, in order to prepare for future maintenance needs.
Part VI Engineering Construction Safety Management Specification
I. Purpose
In order to ensure that the engineering construction work is safe and smooth, and to ensure that the implementation of the project under construction is safe, this specification is formulated.
Two, the scope of application
This specification applies to all new construction, expansion and reconstruction projects of communication system engineering. All construction units and personnel involved in the above projects shall comply with the provisions of these regulations.
Third, safety management requirements
(a) basic safety system
1, the implementation of national policies and regulations on production safety and various production safety rules and regulations, comply with and implement
national and provincial and municipal regulations on construction noise, environmental protection, fire prevention, safety construction, civilized construction and night construction, to ensure that all parties personal and property safety. property safety. Actively take the necessary safety measures to eliminate potential accidents;
2, each construction unit should be designated as the person in charge of safety, responsible for the safety of the unit's construction, the development of their own specific safety and technical measures, and is responsible for the implementation of the measures;
3, the construction unit should be a good job of employee safety education, compliance with the construction of technical standards, operating procedures and systems of construction safety, and to enhance the awareness of self-protection;
3, the construction unit should do a good job in staff safety education, to comply with construction safety standards, operating procedures and systems, and improve self Protection awareness;
4, the construction unit should establish a staff safety education and training system, without safety education, training employees shall not be allowed to work. Special operators should be qualified by the competent administrative department of labor assessment, to obtain professional qualification certificate, before going to work.
5, construction companies should be required to provide operators with qualified labor protective equipment, tools, and inform the correct way to use.
6, in the construction process, the construction unit of each project should be clear safety responsibility, responsible for the implementation of safety measures at the construction site.
7, the company's construction management personnel from time to time to the construction site to check the implementation of construction safety management measures, the problems found during the inspection should be rectified in a timely manner, if found during the inspection of the existence of serious safety hazards should be immediately suspended for rectification;
8, the construction unit should be submitted monthly at the designated time of the "Construction Safety Monthly Report," reporting on the month's safety issues and the implementation of security measures
(2) safety procedures
1, the construction unit in the construction site must have a construction of obvious signs, safety and barricade signs, measures to be complete, to achieve civilized construction, and to keep the construction site clean;
2, construction workers are prohibited from drinking alcohol during the construction shift, are not permitted to do things that have nothing to do with their duties;
3, the correct use of labor protective equipment, should wear a uniform;
3, correctly The use of labor protection equipment, should wear uniform uniforms, and do three tight (cuffs, pants, hem), not allowed to wear slippers or shoes with nails on the pole;
4, tools should be placed in a tool bag, up and down to pass objects prohibit throwing;
5, 2.5m or more working at height, must be taken to prevent falling measures to fasten the seatbelt, safety belts shall be hung in a sufficiently solid place;
5, more than 2.5m high altitude, must take measures to prevent fall, to wear a good safety belt, safety belts must be hung in a sufficiently solid place;
6, the construction site is clean. place;
6, in case of more than five strong winds or thunderstorms, prohibit open-air aerial work and lifting operations;
7, all into the aerial work site, you must wear a helmet, suffering from hypertension, heart disease, epilepsy shall not be engaged in aerial work;
8, must be thrown down the object, to set up a special person to supervise the night, there should be a red light to indicate the warning; the construction of the Ladders, scaffolding, pulleys, hand-operated hoists, etc. must be checked before use, do not meet the requirements shall not be used;
9, ladders are not allowed to cushion the use of one-sided ladder and the ground angle of 60-70 degrees subject to the foot of the ladder shall be set up to monitor, prohibit two people at the same time in the same ladder work;
10, set up a pole, unified command, action Coordination, no one is allowed in the pit when setting up the pole;
11, when boarding the pole, should check whether the bottom of the pole is compacted firmly, the foot buckle specifications should be compatible with the diameter of the pole;
12, pole tightening should be operated sideways and tighten the clamping bolts, and there should be no one on the pole when adjusting the pulling line
12, when adjusting the pulling line, the pole should be tightened.