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GB 51158-2015 English PDF

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US$1999.00 · In stock
Delivery: <= 13 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 51158-2015: Code for design of telecommunication cable line engineering
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 51158-2015	1999	Add to Cart	13 days	Code for design of telecommunication cable line engineering	Valid

Similar standards

GB/T 50082 GB 51156

Basic data

Standard ID: GB 51158-2015 (GB51158-2015)
Description (Translated English): Code for design of telecommunication cable line engineering
Sector / Industry: National Standard
Word Count Estimation: 95,975
Date of Issue: 2015-11-12
Date of Implementation: 2016-06-01
Quoted Standard: GB 50373; GB 16529; YD 5148; YD/T 5003; DL/T 5033; YDN 088; YD/T 814; YD/T 334
Regulation (derived from): Ministry of Housing and Urban?Rural Development Announcement No.952
Issuing agency(ies): Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Summary: This standard applies to the construction, reconstruction and expansion of terrestrial communications transmission system of outdoor circuit design.

GB 51158-2015: Code for design of telecommunication cable line engineering

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General 1.0.1 This code is formulated to standardize the compilation of communication line engineering design and improve the level of communication line engineering design and management. 1.0.2 This specification is applicable to the engineering design of outdoor lines for new construction, reconstruction and expansion of land communication transmission systems. 1.0.3 The engineering design should implement the national basic construction guidelines and policies, rationally use resources, save land, energy and raw material consumption, and pay attention to the protection of historical relics, natural environment and landscape. 1.0.4 In the construction of communication lines, the overall planning, joint construction, and resource sharing of multiple users should be fully considered to meet the requirements of building a resource-saving and environment-friendly society. 1.0.5 The engineering design shall ensure the overall communication quality of the communication network, advanced technology, reasonable economy, safety and reliability. In the design, comparison of multiple schemes should be carried out, and efforts should be made to improve economic benefits and reduce project cost. 1.0.6 The engineering design should be combined with the communication development plan, and the existing network facilities and equipment should be rationally used. The construction plan, technical plan, and equipment selection should be based on the network development plan, fully considering the medium and long-term development and needs. 1.0.7 When constructing communication line projects in areas with seismic fortification intensity 7 and above in my country, the seismic performance of the communication network should be considered. 1.0.8 The engineering design of communication lines shall not only comply with the provisions of this specification, but also comply with the provisions of the current relevant national standards.

2 Acronyms

ADSS (All Dielectric Self Supporting) All Dielectric Self Supporting Optical Cable CPN (Customer Premises Network) Customer Premises Network DP (Distribution Point) distribution point FP (Flexible Point) flexible point MDF(Main Distribution Frame) (cable) main distribution frame ODF(Optical Distribution Frame) Optical Distribution Frame OPGW (Optical Fiber Composite Overhead Ground Wire) Optical Fiber Composite Overhead Ground Wire PMD(Polarization Mode Dispersion) Polarization Mode Dispersion SN (Service Node) business node

3 Communication line network

3.1 Composition of communication line network 3.1.1 The communication line network (Figure 3.1.1) shall include long-distance lines, local lines and access lines, including transmission media such as optical cables and electric cables. Figure 3.1.1 Communication line network reference model 3.1.2 The access network part (Figure 3.1.2) shall include feeder, wiring and lead-in, including transmission media such as optical cable and electric cable. Figure 3.1.2 Schematic structure of access network lines 3.2 Design of communication line network 3.2.1 The design of optical cable network should meet the following requirements. 1.The optical cable network should be safe and reliable, and gradually extend downwards to the end users of communication services. 2 For the capacity and routing of the optical cable network, on the basis of communication development planning, the construction scale should be determined by comprehensively considering the long-term business needs and the development trend of network technology. 3 The number of cores of long-distance optical cables should be determined according to long-term needs, and the local network and access network should be configured according to medium-term needs, and sufficient redundancy should be left. 4 The optical cable line of the access network should fully consider the geographical environment, pipeline pole resources, the capacity of the original optical cable and broadband optical fiber access according to the distribution of service access points, user nature, development quantity, density, geographical and time distribution. Based on various factors such as the system construction method, select the appropriate routing, topology and fiber distribution method to form a network with flexible scheduling, high fiber core utilization, investment savings, easy development, and conducive to operation and maintenance. 3.2.2 When building a new optical (electrical) cable line, the requirements for co-construction and sharing should be considered. 3.2.3 The laying of optical cable lines in urban areas should be mainly in the form of pipelines. For areas that do not have pipeline laying conditions, plastic pipe protection, channels or other suitable laying methods can be used. 3.2.4 When laying optical cable lines in non-urban areas in the wild, it is advisable to use pipelines or direct burial methods, and overhead methods can also be used according to the local natural environment and economic and social development conditions. 3.2.5 Optical cable lines can be laid in the air under the following circumstances. 1 Crossing canyons, deep ditches, steep mountains and other areas where the safety of pipelines or direct burial cannot be guaranteed. 2 There are other facilities underground or on the ground, the construction is particularly difficult, and the owner of the original facilities does not allow crossing or compensation costs are too high. 3 Lot where other laying methods cannot be adopted due to environmental protection, cultural relics protection and other reasons. 4 Affected by other construction plans, it is impossible to carry out long-term construction. 1 Difficult to expand areas. 2 Areas that may develop in the future and require flexibility in line equipment. 3 The section where the pipe hole is tense. 3.2.16 The capacity of branching equipment can be selected according to 1.2 to 1.5 times of the number of users accommodated within the specified years, combined with the nominal series of branching equipment. 3.2.17 The division of the cable handover area should be based on the natural geographical conditions and the number of users accommodated. According to the principle of combining the far and near future, the technology and economy are reasonable, combined with the division of residential quarters and neighborhoods in urban planning, it can also be combined with the original handover area Or the distribution and routing of the distribution area, distribution cables and optical cables, according to the user's development division, reasonable division or merger. After the handover area is demarcated, it should remain stable. The range of the handover area should not be too large to shorten the length of wiring cables. 3.2.18 The arrangement of the cable sequence and the distribution equipment should be arranged from far to near, and from small to large. 4 Selection of optical (electrical) cables and terminal equipment 4.1 General provisions 4.1.1 Single-mode fiber should be used in the optical transmission network. 4.1.2 The configuration of the number of optical fibers in the optical cable should fully consider factors such as network redundancy requirements, expected future system standards, number of transmission systems, network reliability, new business development, optical cable structure, and optical fiber resource sharing. 4.1.3 The optical fiber in the optical cable should be screened through the whole tension of not less than 0.69Gpa, and the type of optical fiber should be selected according to the following regulations according to the application. 1 Long-distance network optical cables should use G.652 or G.655 optical fibers. 2 The local network optical cable should adopt G.652 optical fiber. 3 The access network optical cable should use G.652 optical fiber; when anti-microbending optical fiber cable is required, G.657 optical fiber should be used. 4.1.4 The capacity of the cable should be based on the distribution and needs of the users, combined with the nominal series of cable cores, and on the basis of fully improving the utilization rate of the core wires, select the cable with the corresponding capacity. 4.1.5 The trunk cables of the pipelines in the cable network should adopt large logarithmic cables to increase the wire content of the pipeline holes. 4.2 Selection of fiber optic cable 4.2.1 The structure of the optical cable should be the loose-tube layer-stranded type, the central tube type, or the skeleton type or other more excellent methods. The same type of optical fiber should be used in the same optical cable, and it is not suitable to mix fibers. 4.2.2 Optical cable lines should adopt optical cables without metal wire pairs. According to project needs, optical cables with non-metallic components can be used in areas with severe lightning damage or strong electric hazards, and anti-ant and rat-proof optical cables can be used in areas with severe ant and rodent damage. 4.2.3 The structure of the optical cable sheath should be determined according to the laying site environment, laying method and protection measures, and should meet the following requirements. 1 The direct buried optical cable should use polyethylene plastic inner sheath plus moisture-proof armor layer plus polyethylene plastic outer sheath, or moisture-proof layer plus polyethylene plastic inner sheath plus armor layer plus polyethylene plastic outer sheath and other structures. 2 The optical cable protected by pipes or silicon core tubes should use a structure such as a moisture-proof layer plus a polyethylene plastic outer sheath, or a micro-pipe plus a micro-cable. 3 Aerial optical cables should use moisture-proof layer plus polyethylene plastic outer sheath structure. 4 The underwater optical cable should adopt the structure of moisture-proof layer plus polyethylene plastic inner sheath plus steel wire armor layer and polyethylene plastic outer sheath. 5 The outer sheath structure of non-combustible materials should be used for intra-office and indoor optical cables. 6 Ant-proof optical cable should adopt direct-buried optical cable structure and ant-proof outer sheath. 7 The anti-rodent optical cable should adopt the direct-buried optical cable structure and the outer sheath of anti-rat. 8 The overhead optical cable on the power tower should adopt OPGW or ADSS structure. 4.2.4 The mechanical properties of optical cables shall meet the requirements in Table 4.2.4.When the optical cable is subjected to a short-term allowable tensile force, the additional attenuation of the optical fiber should be less than 0.2dB, and the residual strain of the optical cable after the tensile force is released is less than 0.08%, and there is no obvious residual additional attenuation, and the sheath should have no visible cracks. When the optical cable bears the long-term allowable tensile force and crushing force, the optical fiber should have no obvious additional attenuation. Table 4.2.4 The mechanical performance table of the allowable tensile force and crushing force of the optical cable Note. G is the weight of optical cable per kilometer. 4.3 Selection of cables 4.3.1 The cable structure can be selected according to Table 4.3.1, combined with engineering conditions and application occasions, and should meet the following requirements. 1 The core wire insulation layer program should be selected according to the requirements of use. 2 When using all-plastic cables, the cable sheath should use aluminum-plastic composite sheath. 3 Indoor terminated cables and indoor distribution cables shall be non-flammable cables. 4 The outer diameter of the conduit cable shall be suitable for laying in the conduit hole. 5 The working environment temperature of all-plastic cables should be -30℃～+60℃. If the temperature exceeds the specified range, it should be specially selected according to the requirements of the working environment. Table 4.3.1 Application occasions of various main types of cables 4.3.2 It is not advisable to use too many types of cables in engineering design. 4.3.3 Combined with the conditions of the original cable network and the actual situation in the region, all new cable lines should be made of all-plastic cables. Cables should be self-supporting. 4.3.4 Aerial cables should not exceed 400 pairs. Large logarithmic cables with a capacity of 400 pairs and above, as well as cables with more important or special requirements, should be laid underground. 4.3.5 The underground laying method can be laid with plastic outer sheathed cables in the pipeline, and one cable should be placed in one pipe hole. When only one cable with a capacity of less than 400 pairs is needed and there are no building pipeline conditions, direct burial laying can be used, or underdrain or pipe protection laying can be used according to actual conditions. 4.3.6 Depending on the actual situation of the project, the wiring cables can be used in the way of neighborhood wiring, street wiring or indoor wiring, and should be gradually included in the construction of the resident network and urban construction planning. The wiring and cables should be laid in pipelines. 4.3.7 Non-filled backbone cables shall be inflated for protection and installed with an air pressure monitoring system. The air pressure sensor should be installed in the cable casing. 4.4 Selection of terminal equipment 4.4.1 The ODF used for the optical cable terminal shall meet the following requirements. 1 When the free capacity of the original ODF in the computer room can meet the needs of the current period, it is not necessary to configure a new ODF. 2 The 0DF capacity of the new configuration should be compatible with the termination requirements of the incoming optical cable. The external dimension and color should be consistent with the original equipment in the equipment room. The type of terminal tail fiber should be consistent with the optical fiber in the optical cable. 3 The metal strengthening core fixing device of the optical cable inside the ODF should be insulated from the ODF. 4 The capacity of the optical fiber termination device should match the number of fiber cores of the optical cable, and the fiber reel box should have enough coil radius and volume for the optical fiber reel. 4.4.2 The configuration of optical cable transfer box shall meet the following requirements. 1 The optical cable transfer box should have the functions of optical cable fixing and protection, fiber core termination and direct fusion, and optical fiber scheduling. 2 The capacity of the newly configured transfer box should be configured according to the maximum demand at the end of the planning period, and selected according to the common capacity series of the transfer box. 3.The capacity of the optical cable transfer box should match the terminal and coil retention requirements of the optical cables entering the box, and consideration should also be given to reserving installation space for other facilities such as optical splitters.

5 Selection of Communication Line Routing

5.1 General provisions 5.1.1 The selection of the line routing scheme should be based on the engineering design commission and the communication network planning, and the comparison of multiple schemes should be carried out. The engineering design should ensure the communication quality, make the line safe, reliable, economical and reasonable, and convenient for construction and maintenance. 5.1.2 When selecting the route, the existing topography, building facilities and established construction planning should be used as the main basis, and urban and industrial and mining construction, railways, highways, shipping, water conservancy, long-distance pipelines, and land should be fully considered. Utilization and other developmental planning impacts. 5.1.3 Under the premise of conforming to the general routing direction, the route should be selected along the road or street, and should be straight along the road, and should avoid roadside facilities, planned expansion and improvement areas, and areas that may be subject to chemical corrosion and mechanical damage. 6.1.1 During the laying and installation of optical cables, manual or mechanical laying should be adopted according to local conditions under the principle of ensuring that the optical cables are not damaged according to the environmental conditions of the laying site. 6.1.2 During laying and installation, water should be prevented from entering the optical cable and the joint box, the integrity of the outer sheath of the optical cable should be maintained, and the metal sheath of the direct-buried optical cable should be well insulated from the ground. 6.1.3 The minimum radius of curvature for laying and installing optical cables shall meet the requirements in Table 6.1.3. Table 6.1.3 Allowable minimum bending radius of optical cable Note. D is the outer diameter of the optical cable. 6.1.4 The overlapping, growth and reserved length of optical cable laying and installation can be determined according to Table 6.1.4 in combination with the actual situation of the project. Table 6.1.4 Cable growth and reserved length reference values 6.1.5 When the optical cable is threaded in various pipes, the outer diameter of the optical cable should not be greater than 90% of the inner diameter of the pipe hole. After the optical cable is laid and installed, the nozzle should be sealed tightly. 6.1.6 After the optical cable is laid, it should be easy to identify during use and maintenance, and have a clear and permanent mark. In addition to printing characters or marking strips on the outer sheath of the optical cable, identification plates should be added to the optical cables laid in pipelines and overhead, and warning tapes can be laid on direct-buried optical cables. 6.2 Installation Requirements for Direct Buried Optical Cables 6.2.1 Directly buried optical cable lines should avoid laying in places where roads, houses and soil will be excavated in the future, and should not be laid in places with high groundwater levels or long-term water accumulation. 6.2.2 The burial depth of optical cables shall meet the requirements in Table 6.2.2. Table 6.2.2 Burial depth of optical cable Note. 1.The design depth of the side ditch is the depth required by the highway or urban construction management department; the depth of the artificial grooved stone side ditch can be reduced to 0.4m, and the ditch should be sealed with anti-scouring materials such as cement mortar. 2 For rocky and semi-rocky sections, 100mm thick fine soil or sand should be laid on the bottom of the ditch and above the optical cable. At this time, the buried depth of the optical cable is correspondingly reduced. 3 The above table does not include the buried depth requirements of the permafrost zone, and its buried depth shall be determined separately in the engineering design. 6.2.3 Optical cables can be laid in the same ditch as other communication optical cables or cables, but they must not overlap or cross, and the parallel clear distance between cables should not be less than 100mm. 6.2.4 The embedding of optical cable line marker stones shall comply with the following regulations. 1 Cable markers should be buried in the following locations. 1) Optical cable joints, turning points, reserved places. 2) The break point and connection point of the silicon core plastic pipe suita......

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Question 1: How long will the true-PDF of GB 51158-2015_English be delivered?

Answer: Upon your order, we will start to translate GB 51158-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 9 ~ 13 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB 51158-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB 51158-2015_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

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