GB 50846-2012 English PDFUS$1169.00 · In stock
Delivery: <= 8 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 50846-2012: Code for design of communication engineering for fiber to the home in residential districts and residential buildings Status: Valid
Basic dataStandard ID: GB 50846-2012 (GB50846-2012)Description (Translated English): Code for design of communication engineering for fiber to the home in residential districts and residential buildings Sector / Industry: National Standard Classification of Chinese Standard: P76 Classification of International Standard: 33.020 Word Count Estimation: 53,513 Quoted Standard: GB 50311; GB 50373; GB 4208; JGJ 242; YD/T 988; YD/T 1258.2; YD/T 1258.3; YD/T 1258.4; YD/T 1384; YD/T 1770; YD/T 1997; YD 5059; YD/T 5162; YD 5178 Regulation (derived from): Bulletin of the Ministry of Housing and Urban-Rural Development 1566 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 Chinese standard applies to new residential and residential building FTTH communication infrastructure engineering design, as well as both residential and residential building FTTH communications facilities renovation and expansion project design. GB 50846-2012: Code for design of communication engineering for fiber to the home in residential districts and residential buildings---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 In order to adapt to the development of urban construction and information communication, standardize the construction of fiber-to-the-home communication facilities in residential areas and residential buildings, realize resource sharing, avoid redundant construction, meet the needs of residents for communication services, and protect the legitimate rights and interests of residents, formulate this specification. 1.0.2 This specification applies to the engineering design of fiber-to-the-home communication facilities in newly-built residential areas and residential buildings, as well as the reconstruction and expansion engineering design of fiber-to-the-home communication facilities in existing residential areas and residential buildings. 1.0.3 The design of fiber-to-the-home communication facilities in residential areas and residential buildings must meet the requirements of equal access to multiple telecommunication service operators and users can freely choose telecommunication service operators. 1.0.4 In urban areas at the county level and above where the public telecommunication network has achieved optical fiber transmission, the communication facilities in newly built residential areas and residential buildings should be constructed using optical fiber to the home. 1.0.5 The fiber-to-the-home access method should be adopted for newly-built residential areas and residential buildings in townships and rural areas below the county level. 1.0.6 The reconstruction and expansion of communication facilities in existing residential areas and residential buildings should adopt the fiber-to-the-home access method. 1.0.7 Communication facilities such as underground communication pipelines, distribution pipe networks, telecommunication rooms, and equipment rooms in newly-built residential areas and residential buildings must be constructed simultaneously with residential areas and residential buildings. 1.0.8 The engineering design of fiber-to-the-home communication facilities should select finalized products that meet the relevant current national technical standards. The equipment and main materials that have not been certified by the product quality supervision and inspection agency shall not be used in the project. 1.0.9 The engineering design of fiber-to-the-home communication facilities should implement the national technical and economic policies, and should be safe, reliable, advanced in technology, economically reasonable, overall beautiful, and easy to maintain and manage. 1.0.10 The design of fiber-to-the-home communication facilities shall not only comply with this specification, but also comply with the current relevant national standards. 2 terms2.0.1 Fiber to the home communication facilities in residential districts and residential buildings Refers to the underground communication pipelines and optical cable transfer boxes in the residential area within the red line of the building planning land, the pipe grooves and communication cables and wiring equipment in the residential buildings, the household distribution boxes in the households, the indoor pipelines and various communication business information sockets, The reserved equipment room, telecommunication room and other equipment installation space. 2.0.2 underground communication duct An underground laying channel for communication cables. It is composed of pipes, man (hand) holes, outdoor lead-in pipes and building lead-in pipes. 2.0.3 wiring zone In the residential area, according to the classification of residential buildings and the density of residents, the wiring area is composed of a single or several residential buildings. 2.0.4 wiring pipeline network The pipe network composed of shafts, pipe grooves, etc. in the building. 2.0.5 user access point access point for subscriber The joint access of many telecom service operators is the engineering interface between telecom service operators and housing builders. 2.0.6 cable cable The general term for optical cable and electric cable. 2.0.7 wiring optical cable The optical cable connected from the user access point to the wiring equipment between the equipment, and between the equipment room and the man (hand) hole that communicates with the public communication pipeline. 2.0.8 subscriber optical cable The optical cable connected between the user access point distribution equipment and the home distribution box. 2.0.9 indoor cable The cable connecting the household distribution box to the indoor information socket. 2.0.10 telecommunications room It is a special space for placing wiring equipment and carrying out cable transfer in residential buildings. 2.0.11 equipment room Houses in the residential area that have the conditions for cable introduction and installation of communication wiring equipment. 2.0.12 Optical cable intersection box Distribution equipment for connecting distribution optical cables and user optical cables in residential areas. 2.0.13 Wiring facilities The general term for wiring cabinets (frames) and wiring boxes that connect communication cables in residential buildings. 2.0.14 cabinet cabinet Enclosed unit for installing wiring and network equipment, bringing in cables and terminating them. It consists of a frame, front and rear doors and side panels. 2.0.15 household distribution box A multifunctional wiring box installed in the household. 2.0.16 terminal box terminal box The box body of the terminal part of the indoor cable. 2.0.17 Information socket telecommunications outlet Cable terminal modules supporting various communication services. 2.0.18 tail fiber A fiber optic cable assembly with a fiber optic connector plug on one end. 2.0.19 optical fiber jumper A fiber optic cable assembly with fiber optic patch cord plugs on both ends. 2.0.20 adapter adapter A device that enables an optical connection between plugs and plugs. 2.0.21 optical fiber connector optical fiber connector Consists of patch cords or pigtails and an adapter to match the plug.3 Basic Regulations3.1 Engineering interface 3.1.1 In the fiber-to-the-home project, the location of the user access point should be determined according to the distribution area formed by different types of residential buildings and the number of users under its jurisdiction, and should meet the following regulations. 1 When a single high-rise residential building is used as an independent distribution area, the user access point should be set in the telecommunications room in the building. 2 When the distribution area is composed of low-rise, multi-storey, and middle-high-rise residential buildings, the user access point should be set in the shared telecommunication room of this distribution area. 3 When the distribution area is composed of villas, the user access point should be located in the optical cable transfer box or equipment room. 3.1.2 In the fiber-to-the-home project, the construction division of residential building communication facilities shall comply with the following regulations. 1 The division of labor for the construction of wiring equipment set up by user access points shall comply with the following regulations. 1) When the telecommunications business operator and the housing builder share a distribution box or an optical cable transfer box, the housing builder is responsible for the construction of the box; 2) When the telecommunications business operator and the housing builder set up the wiring box or wiring cabinet respectively, they are respectively responsible for the construction of the box or cabinet; 3) The distribution module on the switching office side shall be constructed by the telecom service operator, and the distribution module on the user side shall be constructed by the housing builder. 2.The distribution equipment and distribution optical cables outside the switching office side of the user access point shall be constructed by the telecom service operator;, Information sockets, and user cables shall be constructed by the housing builder. 3 Communication pipelines in residential areas and distribution pipe networks in residential buildings shall be constructed by the residential construction party. 4 The installation space for communication facilities in residential areas and residential buildings shall be provided by the residential construction party. 3.2 Configuration principles 3.2.1 The number of households under the jurisdiction of a distribution area for fiber-to-the-home projects should not exceed 300 households, and the number of households under the jurisdiction of a distribution area formed by optical cable transfer boxes should not exceed 120 households. 3.2.2 The pipe hole capacity of the underground communication pipeline, the installation space reserved for wiring equipment at the user access point, the area of the telecommunications room and the equipment room shall meet the needs of at least three telecommunications service operators for communication service access. 3.2.3 The total capacity of underground communication pipelines shall be determined according to the type of pipe holes, cable laying method, and final capacity of cables, and shall comply with the following regulations. 1.The pipe holes of underground communication pipelines should be selected according to the type and quantity of cables to be laid. Single-hole pipes, single-hole pipes with sub-pipes or multi-hole pipes can be used. 2 Each fiber optic cable shall occupy one tube hole in a multi-hole tube or one sub-tube in a single-hole tube. 3 One or two spare pipe holes shall be reserved for underground communication pipes. 3.2.4 The capacity of distribution optical cables, user optical cables and distribution equipment shall meet the long-term needs of various communication services, and no less than 10% maintenance margin shall be reserved. 3.2.5 The number of fiber cores in each segment of the user's fiber optic cable should be calculated according to the way of fiber access, the type of residential building, and the number of households under its jurisdiction. 3.2.6 The number of optical cables from the user access point to the distribution box of each household shall be determined according to the geographical situation, the user's demand for communication services and the configuration level, and its configuration shall comply with the provisions in Table 3.2.6. Table 3.2.6 Optical cable configuration Note. High configuration uses 2-core optical fiber, one of which is used as a backup. 3.2.7 The setting of equipment room and telecommunication room shall comply with the following regulations. 1 An equipment room should be set up in each residential area, and the equipment room should be set up in the property management center. 2 A telecommunication room should be set up in each high-rise residential building, and the telecommunication room should be set up on the basement floor or the first floor. 3 Multiple low-rise, multi-storey and middle-high-rise residential buildings should be equipped with a telecommunication room in each wiring area, and the telecommunication room should be set up on the basement floor or the first floor. 3.2.8 The installation space for wiring equipment shall be reserved at the corridor of the residential building unit or in the weak current shaft. 3.2.9 The installation space of the household wiring box shall be reserved in the household. 3.2.10 The usable area of the equipment room and telecommunication room and the space occupied by the wiring box shall be calculated according to the type, quantity, capacity and size of the wiring equipment, and shall not be less than Table 3.2.10-1~Table 3.2.10-3 requirements. Table 3.2.10-1 Area of Equipment Room Note. ①The equipment room is directly used as the user access point, and the 4 cabinets are allocated to the telecom service operator and the housing builder; ② The distribution optical cables in multiple distribution areas are gathered in the equipment room, and the 3 cabinets are allocated to the telecom service operators. Table 3.2.10-2 Telecommunications room area Note. 4 cabinets are allocated to telecom operators and residential builders. Table 3.2.10-3 Space occupied by the wiring box 3.2.11 The design of household wiring systems such as indoor pipelines and various communication service information outlets shall comply with the relevant provisions of the current industry standard "Code for Electrical Design of Residential Buildings" JGJ 242 and "Residential Communication Integrated Wiring System" YD/T 1384.4 Installation design of communication facilities in residential areas4.1 Design of underground communication pipeline 4.1.1 Optical cables in residential areas should be laid in underground communication pipelines. 4.1.2 The laying route of optical cables in residential areas should be determined according to the geographical environment and the planning of integrated pipelines in residential areas. 4.1.3 The design of the underground communication pipeline shall be combined with the overall layout of the underground pipelines of other facilities in the residential area, shall be constructed simultaneously with the roads in the residential area, and shall comply with the following regulations. 1 It should be connected with the lead pipe of the optical cable junction box. 2.It should be connected with the man (hand) hole that the public communication network pipeline communicates with. 3 Keep a safe distance from high-voltage power pipes, heat pipes, gas pipes, water supply and drainage pipes. 4.Areas prone to strong vibrations should be avoided. 5 It should be laid on a good foundation. 6 The route should radiate outward from the center of the equipment room in the residential area, and should be selected on the sidewalk or the green belt beside the sidewalk. 4.1.4 Underground communication pipes can be combined with pipes of different diameters according to cable laying requirements. 4.1.5 Plastic pipes or steel pipes should be used for underground communication pipes, and should meet the following requirements. 1 Plastic pipes should be used in the following cases. 1) The burial depth of the pipeline is located below the groundwater table or in areas that are easily soaked by water; 2) Areas with many underground integrated pipelines and severe corrosion; 3) Lot with complex underground obstacles; 4) The construction deadline is urgent or the lot where backfilling is required as soon as possible. 2 Steel pipes should be used in the following cases. 1) Pipelines are attached to bridges or across ditches, or where suspended wiring is required; 2) The pipe group crosses the main road and does not meet the enclosing conditions; 3) Sections where the buried depth of the pipeline is too shallow or the road load is too large; 4) Affected by power lines and other interference, the site needs to be protected; 5) The exposed part of the building lead-in pipe or lead-in pipe. 4.1.6 The minimum clear distance between underground communication pipelines and other underground pipelines and buildings shall comply with the relevant provisions of the current national standard "Code for Design of Communication Pipelines and Passage Engineering" GB 50373. 4.1.7 The burial depth of underground communication pipelines shall be determined according to factors such as site conditions, pipe strength, external loads, soil conditions, crossing with other pipelines, groundwater level, frozen layer thickness, etc., and shall comply with the following regulations. 1 The minimum buried depth of pipelines in residential areas should meet the requirements in Table 4.1.7. Table 4.1.7 Minimum buried depth of pipelines (m) Note. 1 When the minimum burial depth of plastic pipes does not meet the requirements of this table, protective measures such as concrete encapsulation or steel pipes shall be adopted; 2 The minimum buried depth of the pipeline refers to the distance from the top surface of the pipeline to the road surface. 2 When passing through municipal roads, the buried depth requirements shall comply with the relevant provisions of the current national standard "Code for Design of Communication Pipelines and Channel Engineering" GB 50373. 4.1.8 The distance between the top of the pipe foundation entering the manhole and the top of the manhole foundation should not be less than 400mm; Less than.200mm. 4.1.9 There should be a foundation for plastic pipes. When laying plastic pipes, corresponding fixed grouping measures should be taken according to the selected plastic pipe material and pipe type. 4.1.10 The radius of curvature of plastic pipe bends should not be less than 10m. 4.1.11 The laying of underground communication pipelines should have a slope, preferably 3.0‰～4.0‰, not less than 2.5‰. 4.1.12 The underground communication pipe leading into the residential building should protrude from the outer wall by no less than 2m, and should slope towards the manhole (hand) hole, and the slope should not be less than 4.0‰. 4.1.13 Anti-seepage measures shall be taken at the place where the underground communication pipeline enters the building. 4.1.14 The location of man (hand) holes shall be selected in accordance with the following regulations. 1 Man (hand) holes should be set up at pipeline bends, pipeline branch points, places with optical cable transfer boxes, intersections, turning points with large road slopes, building introductions, and both ends of roads that use special methods.. 2 The position of the man (hand) hole should be staggered from the inspection wells of underground pipelines such as gas pipes, heat pipes, power cable pipes, and drainage pipes, and other underground pipelines must not pass through the man (hand) holes. 3 The location of the man (hand) hole at the intersection should be on the sidewalk. 4 Man (hand) holes should not be set at the main entrances and exits of buildings, cargo accumulation, low-lying water, etc. 5.The position of the manhole (hand) hole connected to the pipeline of the public communication network shall be convenient for connection with the pipeline of the telecommunication business operator. 4.1.15 The selection of man (hand) holes shall meet the following requirements. 1 When the capacity of the long-term pipe group is greater than 6 holes, manholes should be used. 2 When the capacity of the long-term pipe group is not greater than 6 holes, hand holes should be used. 3 When concealed channels are used, hand holes should be used. 4 Hand holes should be used at the upper part of the pipeline and the place where the floor-standing optical cable transfer box is placed. 4.1.16 The handhole program of the communication pipeline should be reasonably selected according to the purpose and capacity of the pipe section, and the handhole program of the communication pipeline can be implemented according to the regulations in Table 4.1.16. Table 4.1.16 communication channel hand hole programs Note. The net depth and height of the hand hole can be adjusted according to the buried depth of the introduction pipe. 4.1.17 For passages with a pipeline capacity greater than 6 holes, the manhole program should be selected according to the relevant provisions of the current industry standards "Atlas of Manholes and Handholes for Communication Pipelines" YD 5178 and "Atlas of Cross Sections of Commun......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 50846-2012_English be delivered?Answer: Upon your order, we will start to translate GB 50846-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 5 ~ 8 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 50846-2012_English with my colleagues?Answer: Yes. 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