Code for Construction and Acceptance of China Communication Industry System Engineering

Code for Construction and Acceptance of China Communication Industry System Engineering

About the author: Wang Duan

Part I Code for Construction of Optical Cable Lines

Communication system engineering industry general construction standards, optical cable line engineering construction quality inspection, on-site inspection and completion acceptance should be

It conforms to the construction standard of China communication system engineering industry, Code for Acceptance of Optical Cable Line Engineering and other relevant national line projects.

Technical specifications for work and acceptance, and compliance in construction.

First power saving rod and pull wire

first

Routing: lines and buildings, highways, country roads leading to trucks, railways and other lines (power lines, broadcasting lines).

And other communication lines), and the spacing when crossing should meet the requirements specified by long-distance communication lines.

second

Pole position (standard pole distance 50m) and pole height (standard pole height) should be determined according to the selected route and the changing characteristics of terrain and environment.

8 meters), poles shall not wear iron caps. The pole road should avoid sharp turns and right-angle (platform angle) turns.

essay

Intersection angle shall not be changed at will, and the intersection angle with the railway shall be greater than or equal to 45 degrees, and the intersection angle with other communication lines shall be greater than or equal to.

30 degrees. The pole should be located one meter outside the sidewalk green belt or highway drainage ditch.

Article 4

The buried depth of pole must meet the specified requirements, and the depth of pole hole shall not exceed 5 cm. All pole positions of straight pole must be

In a straight line, eyebrow bending and S-bend are not allowed. Before and after the rod is slightly, the left-right deviation shall not exceed 13 rod slightly. Pole erection

Integrity, the root of the pole should not exceed 5 cm.

Article 5

Steel strand is used for stay wires, and the procedure is 72.2 steel strand for windproof stay wires.

Article 6

The position of the cable hoop on the pole: terminal pulling, top pulling, angle rod pulling and extension along the line are all installed above the cable hoop.

Wind-proof stay wire, and side stay wire is installed under the hanging wire hoop. The distance between the iron rings is 10 cm 2 cm. Pulling distance

The ratio is equal to1; Not less than 0.75.

Article 7

The tie handle of the stay wire is wrapped with 3.0 iron wire or fixed with a U-clip, and the end must be sealed. Each binding handle must be tightly and evenly wound.

There should be no obvious bell mouth.

The second quarter messenger wire

first

In order to ensure the distance between the optical cable and the ground, the messenger wire should be installed 40 ~ 60cm away from the top of the pole (except in special circumstances). This is also the case.

The installation position of online messenger wire should be on the same horizontal line.

second

Messenger wire generally adopts 72.2 steel strand. The original sag of messenger wire can only be less than the specified value, but not greater than the specified value.

essay

The distance between poles is 70 to120m, and auxiliary messenger wires should be installed on poles. The auxiliary messenger wire procedure should be one level larger than the formal messenger wire.

Suitable. The auxiliary messenger wire should be installed 60cm above the formal messenger wire, and two or three connecting irons should be set in the middle of the lever pulley to connect the main messenger wire and the auxiliary messenger wire.

Answer the phone.

Article 4

The spacing between poles is greater than120m, and its structural requirements are as specified in the design.

Article 5

3.0 messenger wire connection should be fixed by wire winding or U-shaped clamp.

Article 6

4.0 When the angle depth of messenger wire in the internal angle is 3 ~ 8m, use iron wire as binding auxiliary device. When the angle depth exceeds 8m, steel strand is used as an aid.

Device, steel strand is generally 50 cm -60 cm long.

Article 7

When the gradient changes greatly (1 10 pole), a pitch assist device shall be installed.

Article 8

The auxiliary lines of the messenger wire of internal angle, depression angle and elevation angle should be stressed at the same time as the main messenger wire.

Attachment: Inspection Form of Traffic Trunk Road Engineering Process

Inspection results of the importance of technical requirements of serial number inspection items

A bar

1 pole position and hole depth: ordinary soil 1.3 m, hard soil 1.2 m, which needs inspection.

2 the verticality of the pole itself should be vertical up and down; Compulsory inspection

The inward displacement value of triangular rod cement rod is10-15 cm; Selective inspection

Check the backfill compaction of the 4-pole hole.

The No.5 pole is 2.5m above the ground, facing the road, and arranged from end A to end B; There is usually only one relay.

Make a phone call. Compulsory inspection

6. Directly buried grounding protection is required across the poles of power lines. 4.0 The grounding wire must be wrapped with plastic pipe, and the welding with the grounding rod should be checked.

Two stay wires and stay rods

1 Cable scheme, specification and quality: 72.2 galvanized steel strand is used for both cables, and 72.6 galvanized steel strand is generally used for angle steel cables.

Steel strand must be checked.

2. Direction and specification of binding and clamping of stay wires There are three binding methods of stay wires: additional binding method, splint method and clamping method, which should be designed as follows.

Construction is allowed. Compulsory inspection

3 Quality, excavation and displacement of ground anchor (1) There should be steel bars in the ground anchor block, and the size of the ground anchor block is 60×40× 15.

Cm (2) The depth of the ground anchor pit is usually about 10 cm deeper than that of the pole hole, and the measurement method is (60 cm outside the cable lining ring, wrong.

The difference is not more than 5 cm)

(3) The deviation of the unearthed point of the anchor handle should be less than 5cm. Compulsory inspection

4. Pull out the hole and return the soil to tamp the soil to be inspected.

5. The ratio of stopping, stopping distance, height and stopping distance is usually 1, not less than 0.75 and not more than1.25; Because of the terrain location

When the limit value is less than 0.75, higher specification steel strand should be adopted. Selective inspection

Three lines

1 messenger wire specification messenger wire generally adopts 72.2 galvanized steel strand, which must be inspected.

The erection position is generally 40-60 cm away from the top of the pole, and 25 cm away from the top of the pole under special circumstances. Selective inspection

3. Installation specification (1) Egg-shaped insulated electrons (specification 5 tons) should be added to the connection between suspension wires;

(2) The messenger wire shall be directly buried and grounded every kilometer, and the connection shall be checked.

4 Termination and connection quality of messenger wire When the terminal rod and angle depth are greater than 15m, the messenger wire shall be terminated. Check the quality of five messenger wire auxiliary devices. When the gradient of adjacent poles changes to 5%- 10%, it is necessary to install an auxiliary device for lifting angle of messenger wire. Compulsory inspection

6 messenger wire sag temperature is 20℃, rod spacing is 50m, and the original sag of 72.2 steel strand under light load is 18.2cm ... mandatory inspection.

7 Installation of power protection sleeve The length of both ends of the power protection sleeve is 1.5 m, which must be checked.

Note: Fill in "All Qualified", "Qualified×%" or "Unqualified" in the "Inspection Results" column.

Section 3 Optical Cable

first

Excessive bending is not allowed when laying. Its bending radius should not be less than 20 times the outer diameter of the optical cable. No buckle "α" and twisting are allowed, and the outer sheath of optical cable shall not be damaged.

second

When laying optical cable, reserve it at the corner bar and four sides. Set aside a place close to the pole, cover the optical cable with rubber rope or split plastic pipe for 40 cm, and tie it firmly with the pole.

essay

Cable hooks should be selected according to the cable outer diameter. Hook spacing is 50 cm+/-3 cm. Hook buckle on the messenger wire in the same direction. Hook plate is complete and smooth, and the inclination shall not exceed 30 degrees.

Article 4

When overhead cables cross 380 V and 220 V power lines, insulation protection plates should be used to insulate the suspension wires. The length of the insulation board should be more than one meter away from one side of the power cord.

Article 5

The optical cable junction box is installed at a distance of 50 ~ 100cm from the pole, and the junction box is fixed on the messenger wire with a junction box hoop.

Article 6

8 to 20 meters is suitable for the residual lines on both sides of the junction box. Fix the remaining wires on the opposite sides of two adjacent rods of the connecting rod with the reserved frame. The rest of the thread should be coiled into a circle and tied neatly and firmly.

Section 4 Cable Connection and Installation

first

According to the design, sufficient length should be reserved for installing optical cables in the computer room and client.

second

The optical cable is in the computer room, and the client terminal forms are: ①ODF rack; ② Junction box; (3) Optical fiber junction box, etc. In strict accordance with the equipment instructions, pigtail and optical cable shall be connected in strict accordance with the design order, and pigtail shall be labeled and recorded.

essay

The winding of optical fiber in the pad should be greater than the specified radius of curvature, and the connection loss should meet the design requirements when connecting with optical fiber in optical cable. OTDR instruments must be strictly used in welding test. Considering the current actual situation, our department will arrange OTDR instrument testing. )

Article 4

Optical cable connection:

1) optical fiber connection: optical fiber connection, reinforcement core and sheath fixing, joint loss measurement, joint box packaging and joint protection installation.

2) Check the connection box selection of optical cable program before connection, and peel it off according to the reserved length of connection.

3) The stripped optical cable shall be firmly fixed on the bracket of the junction box, and the optical fiber shall not be damaged. The environment should be clean and tidy, and the fiber core connection must conform to

The design order should be connected correspondingly, and there can be no mistakes. In particular, bifurcated optical cables shall be connected and recorded as required. The reinforced core of overhead cable junction box is not grounded and connected.

4) splicing the fiber cores with a welding machine. The whole process of optical fiber connection should be monitored for quality, and the joint loss can be estimated. In order to ensure the connection quality, OTDR is used to monitor the joint loss during construction, and at the same time, the distance from the joint point to the test point is recorded. Ensure that the average loss of optical fiber connection meets the requirements of design documents.

5) After the fiber core is welded, it should be protected by heat shrinkable tube. The radius of curvature of the optical fiber fixed and coiled in the fused fiber tray should be greater than 37.5 mm to avoid additional attenuation of the wavelength of 1.55 micron .. The coiled fiber core is fixed in the fused fiber tray with adhesive tape.

6) When packaging the optical cable connector box, the sealant tape should be filled in and the fastening screws of the optical cable connector box should be tightened to make the sealing performance better and prevent water from entering. Under the condition of ensuring no leakage, it can be installed on the pole or buried in the hand hole.

Part II Code for Construction Acceptance of Cable Lines

Section 1 Construction of Category 5 Lines in Buildings

first

The customer's five types of cables in the building are arranged according to the customer's suggestion, and the operation is neat and standardized.

second

Five types of wires in the shaft should be bridged as much as possible. If there is no condition, it should be laid vertically in the shaft and fastened with wire.

essay

If there is no shaft in the building, when wiring along the wall outside the building is needed, it must be operated according to the specifications and fixed with line cards, and three line cards are used for one meter, so that the appearance should be neat and not affect the beautiful facade of the building.

Article 4

Category 5 lines of clients and switches must be labeled with company name and switch port number. Test with a five-level line tester to ensure smooth lines.

Section 2 Construction of Cable Perimeter

first

Outdoor cable laying refers to optical cable laying standards.

second

The cable layout of the client is arranged according to the customer's suggestion, and the operation is clean and standardized.

essay

When wiring along the wall outside the customer's building, it must be operated according to the specifications, fixed with line cards, and the appearance of three line cards per meter should be neat, which will not affect the beautiful facade of the customer unit.

Article 4

Cables of customers and information buildings must be labeled with unit name and building information. Test with cable tester to ensure smooth lines.

Part III Code for Construction of Junction Box

A, the new junction box construction specification

1, overhead junction box construction specification:

Operation flow: site selection-vertical pole-fixed channel steel-lightning protection and grounding-leveling-platform installation-junction box installation-site cleaning. Specific precautions:

(1), choose a reasonable location for installing the junction box and have enough installation space.

(2) According to the fixed spacing of channel steel, determine the reasonable spacing of vertical poles, dig a pole pit with a depth of 1.2~ 1.3 meters, and erect two 8m poles.

The name of the company and the construction date must be indicated on the side disc fiber, the left upper fiber and the tail fiber (the name of the company should be consistent with the name of the company in the task book).

2) The remaining cables connected to the optical cable shall not be hung on the handover box.

3) The capacity of the direct melting tray in the delivery box is 12 cores. In principle, the new tray can only be used when connecting the optical cable into the box for welding.

The fourth part is the construction specification and management requirements of voice engineering.

1. After the survey is completed, the contractor shall submit a complete construction plan according to the communication industry standard within 2 working days, and the plan shall be complete and feasible. The contents of the scheme include the name of the person in charge of the construction, the time limit for a project, the materials and accessories used, the construction content, the structural topology diagram, the floor plan and other related drawings. If the data application has been opened in the early stage of the project, the data and voice should be considered as a whole system. For projects without data application, the layout of data lines should be considered when wiring vertically.

2. After the investigation is completed, the equipment manufacturer shall submit the equipment configuration scheme according to the existing resources of the customer within 2 working days, and the scheme shall be complete and feasible. The scheme includes the name of the person in charge of the construction, the schedule of construction period, the model of the equipment used, the main equipment and accessories, the schematic diagram of the equipment, the topology diagram of the structure, the scheme and other relevant drawings;

3. After the survey is completed, the external contractor shall submit the external road map and the accurate handover box number within 2 working days.

4. The construction shall be carried out in strict accordance with the construction design and acceptance criteria. For the builders who do not follow the construction plan, the construction quality does not meet the standards, and there are no special circumstances to delay the completion of the project, the CNC Engineering Department will reduce or cancel the builders' construction projects.

5. In the process of construction, the part that really needs to be modified in the original scheme should be notified to the relevant personnel of Netcom in the form of construction contact sheet, and the construction can be continued only after confirmation.

6. If third-party cooperation is needed in the construction process, the agent and Netcom personnel should be informed as soon as possible to discuss the specific details of cooperation in the project, so that all parties can make reasonable arrangements, support each other and cooperate with the construction. If it involves public places such as shared cable shafts, computer rooms and technical mezzanines, we must focus on research and properly handle such problems with agents.

7. The construction personnel shall certify the construction and present relevant certificates to the property management department. Line construction requirements shall be entered with the construction sheet signed by the relevant project leaders of Netcom, and a copy of the construction sheet shall be submitted to the property management department through the agent; Installation construction needs to enter the construction with the installation construction sheet; Construction personnel shall wear badges in a unified manner and conduct civilized construction.

8. Do a good job in line testing to ensure smooth links and meet the requirements of various indicators; Find the problem as soon as possible, and notify the relevant personnel in time if Netcom is needed to help solve it.

9. Strengthen the management of construction materials and accessories, collect them as needed, and avoid artificial damage or loss, so as not to delay the construction progress and cause economic losses.

10. Strengthen the safety construction and civilized management education for all construction personnel, implement the construction safety officer, strengthen supervision, clarify the responsibilities at all levels, achieve civilized construction and safe production, and strive to avoid casualties.

1 1. After the construction, check, sort out and properly keep the remaining equipment, equipment and cables after installation and construction, and hand them over to the operation and maintenance personnel of Netcom after completion. At the same time, clean up the construction site and keep the site clean and tidy.

12. Strengthen the management and arrangement of all kinds of documents in the construction process. Record and sort out the original data and materials in the construction process in detail, as the attachment of the completion document.

13. After the project is completed, the completion data will be sorted and filed within 15 working days and handed over to the relevant personnel of Netcom. Completion data include installation quantity summary table, project description, unpacking test records, completion drawings, engineering change orders, major engineering quality accident reports, installed equipment list, commencement report, acceptance certificate and other engineering documents.

14. Before the installation starts, it is necessary to inform the agent to send people to the site during the construction to coordinate the unexpected situation during the construction.

15. During installation and construction, the construction shall be carried out in strict accordance with the information provided by the construction sheet and shall not be changed at will. No special circumstances must be completed within 4 working days. In case of special circumstances, such as wrong number segment or wrong installation address, it shall notify CNC Engineering Department in time.

Department. If the installation is not completed within the time limit, it needs to be explained in advance; Unauthorized changes to the construction content, losses caused by telephone disputes or user complaints, shall be borne by the construction unit. For the construction team, the CNC engineering department will reduce or cancel the installation task of the builder.

16. During construction, meet the reasonable requirements of users as much as possible, achieve civilized construction and be polite to others. After the completion of the construction, restore the original appearance of the site and clean up the site after completion.

17. The documents involved in the construction include: exploration task list, customer survey resource list, 2M resource application form, department contact list, installation account list, distribution frame data, construction plan, equipment application plan, voice access plan, project feasibility report and voice IP supermarket cable project task list, computer room construction task list, voice building wiring project task list, building installation summary table, and IP private line construction user construction contact list.

The fifth part of the hotel construction management norms

General rule

In order to cooperate with the company's digital TV translation in the hotel and the marketing and business negotiation of triple play.

The work is progressing smoothly. At the same time, in order to better maintain the company's image, improve service quality, respond to market demand in time, and complete related projects on time, our department has formulated this management system to standardize construction behavior, construction quality and construction technology, so as to achieve "rules to follow".

construction supervision

After receiving the decoration task, the hotel engineering management personnel should draft the project task book, which should explain the installation content and the entry time. The project task book is issued to the installation unit by the relevant personnel of the hotel engineering management department. The construction unit shall not undertake the installation task of the decoration project and the set-top box installation project without the project task book.

During the installation of hotel installers, all installers must wear uniform and neat clothes, work cards and pay attention to civilized language. When entering the guest room, you must be accompanied by the staff in the store. Without the staff in the store, you are not allowed to enter any room. After the installation of a single guest room, the store staff should leave the guest room last and lock it. When you leave the guest room, please take away all the garbage generated by the installation.

You should abide by the hotel schedule, do not leave without authorization during the installation, do not make noise in the hotel, use the staff elevator when going up and down the floor, do not use the hotel elevator, and do not enter and leave the hotel lobby without authorization.

For each project, the construction unit must have a site installation manager. As installation manager, solve technical problems in installation on site in time. If it is difficult to solve the problem on site, the project manager will be informed as soon as possible, and the project manager will arrange personnel to solve it. Afterwards, you should get feedback from the project manager to solve the problem.

On-site installation management personnel should effectively undertake the communication between installation personnel and hotel management personnel. Explain to the hotel management all kinds of work that the hotel needs to cooperate with during the installation process.

During the set-top box installation, the installation manager should hold a regular meeting of installers twice a day in the morning and evening, arrange the installation tasks and summarize the installation situation on that day, and record the daily on-site installation situation, and report the work to the project manager the next day. During the network transformation, a daily newspaper system should be established, and the work situation of the day and tomorrow's work arrangement should be reported to the hotel engineering manager regularly every day, so that the project manager can keep abreast of the on-site transformation situation and make the next work instructions. After the completion of the construction task, submit the completion data within one month.

Construction technology:

I. Wiring

1. Testing of network cable and telephone line: Make crystal heads respectively and test the connection and disconnection with a network tester (FLUKE);

2. Cable TV line test: use multimeter to test on and off;

3. Other cables: test the connection and disconnection with corresponding professional instruments;

4. Estimate the length from the turnout to each point;

5. Cut all kinds of cables according to a certain length, and put labels on both ends of the line respectively, and indicate: weak current type-room-serial number.

6. If PVC pipes need to be added, confirm the number of lines in the pipes: the cross-sectional area of the lines in the pipes shall not exceed 80% of the cross-sectional area of the pipes.

7. If slotting is needed, first determine the slotting route, follow the principle of shortest route, and do not destroy the original strong current principle and waterproof principle. Then determine the slot width: determine the number of PVC pipes according to the number of signal lines, and then determine the slot width. Then determine the grooving depth: if 16mm PVC pipe is selected, the grooving depth is 20mm；; If 20mm PVC pipe is selected, the slotting depth is 25 mm, and the appearance requirements of trunking are: horizontal, flat and vertical, with the same size.

Second, the network equipment installation:

1. The installation of cabinets, junction boxes and switches must meet the requirements of the installation of the computer room. All kinds of residual lines must be sorted out, and it is best to match the cable rack to make the whole residual line look neat and beautiful.

2. Every switch should be labeled, and the routers and core switches should also be labeled as assets of Hangzhou Netcom.

3. Whether the output signal of the optical machine is between 95- 105dB, and the difference between high and low frequencies is less than 5dB.

4. The output signal of each amplifier should be between 95- 105dB, and the difference between high and low frequencies should not exceed 5dB.

Third, the set-top box installation

1. When installing the set-top box, pay attention to the installation process, and all lines should not be dragged behind the TV at will, but should be arranged and tied;

2. After the set-top box is installed, it needs to be powered on to check whether all channels can be watched normally, especially whether the number of overseas stations is consistent with the number of authorized programs.

3. Check the authorization information of the set-top box to ensure that the authorization of the set-top box is received normally; After the installation, the set-top box number and guest room number should be registered, and the store staff should be invited to conduct on-site acceptance and sign the installation.

4. Check whether all the 2-in-1 remote controls have been studied well. There are always six keys to learn.

5. During the installation process, if the set-top box needs to be replaced in the guest room where the set-top box has been installed, the construction personnel should re-correspond the new set-top box number with the guest room number and make records.

5. After the overall renovation of the hotel is completed, the construction unit shall cooperate with the project management personnel for pre-acceptance. After the pre-acceptance is passed, notify the maintenance department colleagues for formal acceptance.

7. After the formal acceptance, the construction unit will submit the hotel completion data (electronic version) to the project manager, who will forward it to the maintenance department for future maintenance.

The sixth part of the engineering construction safety management norms

I. Purpose

This specification is formulated to ensure the safe and smooth progress of engineering construction and the safe implementation of projects under construction.

Second, the scope of application

This specification is applicable to communication system engineering of all new construction, expansion and reconstruction projects. All construction units and personnel involved in the above-mentioned projects shall abide by the provisions of these regulations.

Third, the safety management requirements

(A) the basic security system

1, carry out the national policies, regulations and various safety production rules and regulations, and observe and implement them.

National, provincial and municipal regulations on construction noise, environmental protection, fire prevention, safe construction, civilized construction and night construction ensure the personal and property safety of all parties. Actively take necessary safety protection measures to eliminate hidden dangers of accidents;

2. Each construction unit shall designate a person in charge of safety, who shall be responsible for the safety construction of the unit, formulate specific safety technical measures of the unit, and be responsible for the implementation of the measures;

3, the construction unit should do a good job in the safety education of employees, abide by the construction safety technical standards, operating procedures and systems, improve the awareness of self-protection;

4. The construction unit shall establish a safety education and training system for employees, and employees without safety education and training shall not work at their posts. Special operations personnel shall pass the examination by the competent labor administrative department and obtain the professional qualification certificate before taking up their posts.

5. Construction enterprises and units shall provide qualified labor protection articles and tools for workers in accordance with regulations, and inform them of the correct use methods.

6. In the process of engineering construction, the construction unit shall specify the person responsible for the safety of each project and be responsible for the implementation of safety measures on the construction site.

7. The construction management personnel of our company will go to the construction site from time to time to check the implementation of construction safety management measures, and rectify the problems found in the inspection in time. If there are serious security risks found during the inspection, it is necessary to immediately stop work and rectify;

8. Each construction unit shall submit the monthly construction safety report at the specified time every month, and report the implementation of relevant safety issues and safety measures in that month;

(2) Safety operation procedures

1, the construction unit must be equipped with obvious construction signs, safety signs and roadblock signs at the construction site, and the measures should be complete, so as to achieve civilized construction and keep the construction site clean and tidy;

2. Construction personnel are forbidden to drink alcohol and do things unrelated to their duties during the construction shift;

3, the correct use of labor protection articles, should wear uniform work clothes, and do three tight (cuffs, trousers, hem), are not allowed to wear slippers or nail shoes on the pole;

4, tools should be placed in the tool bag, and it is forbidden to throw objects up and down;

5, 2.5m above the aerial work, measures must be taken to prevent falling, to fasten your seat belt, seat belt must be hung in a strong enough place;

6. In case of strong wind or thunderstorm above category 5, open-air aerial work and lifting operation are prohibited;

7, who entered the aerial work site, must wear a helmet, hypertension, heart disease, epilepsy patients shall not be engaged in aerial work;

8, must throw things down, want to care by designated personnel, there should be a red light warning at night; Ladders, scaffolding, pulleys, chain block, etc. Those used for construction must be inspected before use, and those that do not meet the requirements shall not be used;

9. Ladders are not allowed to be used. The included angle between the single-sided ladder and the ground is 60-70 degrees, and the foot of the ladder must be supervised by designated personnel. It is forbidden for two people to work on the same ladder at the same time;

10, when poling, unified command, coordinated action, no one in the poling pit;

1 1, check whether the bottom of the pole is firm and firm when climbing the pole, and the specifications of the ankle buckle should be suitable for the pole diameter;

12, the rod should be tightened laterally, the clamping bolt should be tightened, and no one can be on the rod when adjusting the stay wire.