Detail of TB 10756-2010

Introduction of TB 10756-2010

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed by sufficiently learning construction and operation experience of Beijing-Tianjin, Wuhan-Guangzhou, Zhengzhou-Xi'an, Hefei-Ningbo, Hefei-Wuhan, Shijiazhuang-Taiyuan, Southeast Coastal and Shanghai-Nanjing High-speed Railways according to the requirements of the Document TieJianSheHan [2009] No.34 issued by the Ministry of Railways - Notice on Printing and Distributing ‘the Development Plan of Railway Engineering Construction Standards in 2009’ and on the basis of the Document TieJianShe [2007] No.213 issued by the Ministry of Railways - Tentative Standard for Constructional Quality Acceptance of Railway Signaling Engineering of Passenger Dedicated Line. This standard is developed into a standard for constructional quality acceptance of China high-speed railway signaling engineering, which meets China's national conditions and road conditions and has proprietary intellectual property rights, by closely following the overall technical route of high-speed railway, adhering to high starting point and standard, and through original innovation, integrated innovation and re-innovation after introduction, digestion and absorption. This standard comprises thirteen chapters and two annexes, with the main contents including: General Provisions; Terms and Abbreviations; Basic Requirements; Optical Cable Line; Fixed Trackside Signal and Signboard; Switch Device and Turnout Snow-melting Device; Track Circuit (TC); Balise and Outdoor Lineside Electronic Unit; On-board Ground Checkout Equipment; Indoor Equipment and Box-type Machine Room; Lightning Protection, Electromagnetic Compatibility and Grounding; System Inspection; and Overall Quality Evaluation of Unit Project. This standard mainly covers: 1. Implement "Six-In-One" construction management requirements, and put forward targeted management measures for quality, safety, construction period, control of investment, environmental protection and technological innovation. 2. Reflect the connotation of standardization management of construction projects, and provide supporting standard requirements for standardization of management system, personnel allocation, site management and process control. 3. Emphasize the application of modern construction management measures, and define guiding principles from the perspective of actively popularizing mechanized, industrialized, specialized and informationized construction. 4. Embody all-round whole-process quality control concept, and define critical work content of the construction parties concerned in such aspects as source control, process control and detail control. 5. Highlight quality objective requirements of engineering structure in such aspects as safety, reliability, durability and system use functions, and ensure safe and stable operation of high-speed railway. 6. Implement engineering quality lifelong responsibility system, and add recording requirements for the persons responsible for procedure operation, to embody quality responsibility traceability to management, technical and operating personnel. 7. Optimize unit division, organizational procedure, implementation method and work content of constructional quality acceptance of engineering. 8. Adjust inspection items, quality indicators and inspection methods, to make quality inspection work more scientific and reasonable. 9. Analyze common quality problems in signaling engineering construction and establish targeted control measures. 10. Unify the installation quality requirements of signaling engineering at ballastless track section. Highlight the particular acceptance requirements for signal equipment at earth structure, bridge and tunnel sections of ballastless track, and detail the requirements for constructional quality acceptance of foundation installation type, chemical anchor bolts, testing of steel bar in building for the signal equipment at different sections. 11. Define the quality indicators of laying, protection, connection and terminating of cables, specify the requirement of carrying out single-coil test for signal cable prior to laying, and require supervision organization to carry out on-site supervision over cable connection. 12. Improve the installation quality requirements of various boxes at subgrade, bridge fender wall and tunnel sections, put forward the requirement of strictly prohibiting installing the box foundation support cross expansion joint of bridge, and specify the wiring quality requirements of boxes in details. 13. Define the requirements for installation form and installation dimensions of signal machine and signal signboard, and add the content about installation of level transition sign and relay station sign. 14. Add the content about box-type signal machine room and put forward specific quality requirements for on-site transportation, hoisting, splicing, installation and indoor routing of box-type machine room in combination with the construction experience of box-type machine room at Beijing-Tianjin, Wuhan-Guangzhou and Zhengzhou-Xi'an High-speed Railways. 15. Add the content about acceptance of turnout snow-melting device, and define the constructional quality requirements for electric control cabinet, isolation transformer, rail temperature sensor, electric heating element, meteorological station and indoor control terminal of turnout snow-melting device. 16. Specify the content about installation of equipment in ZPW-2000 track circuit, and define the construction and installation quality of steel rail insulation, track connecting line and choke transformer. 17. Improve the installation quality requirements of compensation capacitor at outer side of track slab and trackbed slab at ballastless and ballast track sections as well as those of compensation capacitor on the sleeper with or without capacitor’s mounting groove and the broad sleeper slab. 18. Detail the installation requirements of balise on common sleeper, broad sleeper, track slab, trackbed slab and frame type track slab, and put forward specific installation quality requirements for surrounding non-metal spatial position, installation height, lateral deviation and angle of balise. 19. Define the constructional quality requirements for bonding bus and grounding of indoor equipment, and put forward specific quality requirements for cable grounding of outdoor equipment, ladder grounding of signal machine and high signal and grounding of ZPW-2000 track circuit. 20. Highlight the commissioning requirements of system interface, improve the quality acceptance requirements for interfaces between centralized traffic control and radio block center, between temporary speed restriction server and radio block center, between computer based interlocking system and radio block center, and between adjacent radio block centers. All the provisions of this standard are mandatory ones and must be enforced strictly. All relevant organizations shall sum up and accumulate experiences in actual practices during the process of implementing this standard. The relevant opinions and advice, whenever necessary, can be posted or passed on to China Railway Signal & Communication Corporation Limited (Address: B49, Xisihuan, Fengtai District, Beijing City, 100166, China) and also copied to the Economic and Planning Research Institute, the Ministry of Railways (Address: B29, Fengwo North Road, Haidian District, Beijing City, 100038, China) for reference during future revision. The Department of Construction and Management, the Ministry of Railways is in charge of the explanation of this standard.   Contents 1 General Provisions 1 2 Terms and Abbreviations 3 2.1 Terms 3 2.2 Abbreviations 4 3 Basic Requirements 5 3.1 General Requirements 5 3.2 Division of the Constructional Quality Acceptance Units of Engineering 7 3.3 Content and Requirements of Constructional Quality Acceptance of Engineering 11 3.4 Procedure and Organization of Constructional Quality Acceptance of Engineering 12 4 Optical Cable Line 17 4.1 General Requirements 17 4.2 Cable Laying 17 4.3 Cable Protection 19 4.4 Cable Connection 22 4.5 Cable Terminating 24 4.6 Box Installation 25 4.7 Box Wiring 27 5 Fixed Trackside Signal and Signboard 30 5.1 General Requirements 30 5.2 High Color Light Signal 30 5.3 Ground Color Light Signal 34 5.4 Signal Signboard 37 6 Switch Device and Turnout Snow-melting Device 41 6.1 General Requirements 41 6.2 Mounting Device 41 6.3 External Locking Device 43 6.4 Switch Machine 45 6.5 Point Closure Inspection Device 48 6.6 Locking Inspection Device 50 6.7 Turnout Now-melting Device 51 7 Track Circuit 56 7.1 General Requirments 56 7.2 Trackside Equipment 56 7.3 Compensation Capacitor 59 7.4 Steel Rail Insulation 62 7.5 Track Connecting Line 63 7.6 Choke Transformer 67 8 Balise and Outdoor Lineside Electronic Unit 69 8.1 General Requirments 69 8.2 Balise 69 8.3 Outdoor Lineside Electronic Unit (LEU) 72 9 On-board Ground Checkout Equipment 74 9.1 General Requirments 74 9.2 On-board Ground Test Equipment Box and Test Loop 74 9.3 BTM Antenna Test Equipment 75 10 Indoor Equipment and Box-type Machine Room 76 10.1 General Requirments 76 10.2 Control Display Equipment 76 10.3 Power Supply Equipment 78 10.4 Cabinet (rack) Equipment 80 10.5 Indoor Wiring 82 10.6 Cable Entry 83 10.7 Box-type Machine Room 84 11 Lightning Protection, Electromagnetic Compatibility and Grounding 87 11.1 General Requirements 87 11.2 Lightning Protection of Equipment 87 11.3 Grounding and Electromagnetic Compatibility of Indoor Equipment 89 11.4 Grounding of Outdoor Equipment 93 11.5 Grounding of Box-type Machine Room 96 11.6 Integrated Grounding System 97 12 System Inspection 99 12.1 General Requirements 99 12.2 Single-item Inspection of Equipment 100 12.3 Subsystem Inspection 109 12.4 System Interface Inspection 112 13 Overall Quality Evaluation of Unit Project 119 13.1 General Requirements 119 13.2 Quality Control Data Check for Unit Project 119 13.3 Entity Quality and Main Function Check for Unit Project 120 13.4 Evaluation on Quality of Appearance of Unit Project 123 Annex A Main Electrical Performance Indexes of Various Signal Cables 128 Annex B System Test Record 130 Wording Explanation in This Standard 154 1 General Provisions 1.0.1 This standard is formulated with a view to strengthening constructional quality management, unifying standard for constructional quality acceptance and ensuring constructional quality of high-speed railway signaling engineering. 1.0.2 This standard is applicable to the constructional quality acceptance of newly-built 250~350km/h high-speed railway signaling engineering. The constructional quality acceptance of signaling engineering for passenger dedicated line and inter-city railway in speed less than 250km/h may also refer to this standard. 1.0.3 The construction parties concerned of high-speed railway signaling engineering shall establish and improve quality assurance system, conduct whole-process control over the constructional quality of engineering, and implement lifelong quality accountability system to management, technical and operating personnel. 1.0.4 The construction parties concerned of high-speed railway signaling engineering shall standardize management system, personnel allocation, site management and process control, and implement construction and management requirements such as quality, safety, construction period, investment returns, environmental protection and technological innovation. 1.0.5 The construction of high-speed railway signaling engineering shall fully comply with the national laws and regulations and the relevant technical standards and be in strict accordance with the design documents, the constructional quality shall meet the requirements for use functions, safety and quality performance of system, and the engineering shall be ensured of normal use during the design service life. 1.0.6 Main equipment and apparatuses adopted in high-speed railway signaling engineering shall meet those specified in the relevant national and professional standards and admittance for railway industry. 1.0.7 Requirements for constructional quality as stated in the contract documents and engineering technical documents adopted in construction of high-speed railway signaling engineering shall not be inferior to those specified in this standard; otherwise, these requirements shall prevail. 1.0.8 During construction of high-speed railway signaling engineering, efforts shall be made to implement sustainable development strategy of the national economy, make rational utilization of resources and properly carry out environmental protection and water & soil conservation. 1.0.9 The construction of high-speed railway signaling engineering shall comply with the current relevant labor protection laws and regulations of the nation to ensure health of constructors and to avoid or reduce harm. 1.0.10 For the construction of high-speed railway signaling engineering, mechanized, industrialized, specialized and informationized construction measures shall be positively adopted. 1.0.11 For the construction of high-speed railway signaling engineering, advanced, mature and scientific inspection and testing measures shall be adopted. The quality inspection data must be authentic and reliable and overall reflect the engineering quality. The methods, instruments and equipment adopted shall meet those specified in the relevant technical standards, the instrument performance shall meet the requirements of quality inspection, and the quality inspectors shall possess the specified qualifications. 1.0.12 All the quality inspection reports, inspection and acceptance records and other technical management data for construction of high-speed railway signaling engineering shall be timely filled in as required and shall strictly comply with the responsible person signature confirmation system. The filing, reorganization and preservation period of constructional quality acceptance data shall meet the requirements of relevant provisions. 1.0.13 The construction and acceptance personnel of high-speed railway signaling engineering shall pass necessary training and examination before taking up the post. 1.0.14 In addition to this standard, the constructional quality acceptance of high-speed railway signaling engineering shall also comply with those specified in the current relevant standards of the nation.   2 Terms and Abbreviations 2.1 Terms 2.1.1 constructional quality of engineering summation of all obvious and implied characteristics on aspects such as safety, use function, durability and environmental protection, for reflecting that the engineering construction process or the entity meet those specified in the relevant technical standards or stipulated in the Contract 2.1.2 acceptance confirmation, in written form, on whether the engineering quality is acceptable according to relevant standards, upon inspection for quality of inspection lot and subitem, divisional and unit projects by the organizations concerned with construction activities, under the premise that the engineering quality is acceptable upon self-inspection and evaluation of the construction organization 2.1.3 site acceptance inspection for materials, members, accessories, equipment, etc. delivered to the construction site according to the requirements of relevant technical standards to confirm whether they are acceptable 2.1.4 inspection lot an inspection unit composed of certain samples used for inspection and gathered according to the same production conditions or in required mode 2.1.5 inspection activity of conducting measurement, inspection and test for the properties of inspection items and comparing the results and the standard requirements to determine the conformity of all property items 2.1.6 witness testing supervisory activity conducted by the engineering supervision organization on the construction organization for material sampling, sample presentation, inspection or testing and test process 2.1.7 parallel acceptance testing inspection or testing activity carried out independently by the supervision organization according to certain proportion by using certain inspection or testing means based on the self-inspection of construction organization 2.1.8 on-site supervision supervisory activity conducted by supervisors on site during construction of critical part or working procedure of the engineering 2.1.9 working procedure operation activity with relative independent characteristics or operation activity divided by necessary technical intermittent and pause during construction, which is the basic unit of construction process 2.1.10 handing over inspection activity that the construction undertaking party and completing party jointly carry out inspection and confirm whether the construction can be continued 2.1.11 dominant item inspection item playing a decisive role in quality, safety, health, environmental protection and public interest 2.1.12 general item inspection item other than the dominant item 2.1.13 quality of appearance external quality of engineering reflected by observation and necessary measurement 2.1.14 repair measures like renovation for the position failing to meet the standard requirements in the engineering 2.2 Abbreviations Abbreviation English name Chinese name BTM Balise Transmission Module 应答器信息传输模块 CBI Computer Based Interlocking 计算机联锁 CSM Centralized Signaling Monitor 信号集中监测系统 CTC Centralized Traffic Control 调度集中系统 CTCS Chinese Train Control System 中国列车运行控制系统 LEU Lineside Electronic Unit 地面电子单元 RBC Radio Block Center 无线闭塞中心 TC Track Circuit 轨道电路 TCC Train Control Center 列车控制中心 TDCS Train Dispatching Command System 列车调度指挥系统 TSRS Temporary Speed Restriction Server 临时限速服务器   3 Basic Requirements 3.1 General Requirements 3.1.1 For the construction site management of high-speed railway signaling engineering, corresponding construction technical standards, quality management system and constructional quality inspection system shall be available. Prior to construction, the construction organization shall fill in the construction site quality management inspection records of high-speed railway signaling engineering according to those specified in Table 3.1.1, and the chief supervising engineer shall inspect these records and make inspection conclusion. Table 3.1.1 Construction Site Quality Management Inspection Records Name of unit project Commencement date Development organization Project director Design organization Project director Supervision organization Chief supervising engineer Construction organization Project director Project technical director No. Item Content 1 Commencement report 2 On-site quality management system 3 Quality responsibility system 4 Engineering quality inspection system 5 Construction technical standard 6 On-site review condition of construction drawings 7 Construction repetition survey data 8 Construction organization design, construction scheme and environmental protection scheme and their approval 9 Operation and post certificates of main professional works 10 Quality responsibility registration form for personnel of construction organization 11 Arrangement of construction inspection equipment and measuring instruments 12 Materials and equipment management system Inspection conclusion: Chief supervising engineer Date: 3.1.2 High-speed railway signaling engineering shall be subject to constructional quality control according to the following requirements: 1 The equipment and materials adopted for the engineering shall be subject to inspection by construction organization and supervision organization according to those specified in this standard, and the unqualified one shall not be used for engineering construction. 2 Each working procedure shall be subject to process control in accordance with the construction technical standards; the construction organization and supervision organization shall carry out inspection and keep a record according to those specified in this standard. 3 Handing over inspection shall be conducted between working procedures, and the previous procedure shall satisfy the construction conditions and technical requirements of the next procedure. For handing over inspection between working procedures of related disciplines, the previous procedure shall be inspected and approved by the supervising engineer, otherwise the construction of the next procedure shall not be commenced. 3.1.3 The constructional quality acceptance of high-speed railway signaling engineering shall be conducted according to the following requirements: 1 The constructional quality of engineering shall meet those specified in this standard and current relevant standards. 2 The constructional quality of engineering shall meet the requirements of engineering design documents and engineering contract. 3 The personnel of the parties concerned with constructional quality acceptance of engineering shall have specified qualifications; the signers of all inspection records shall be reported to the development organization for confirmation and filing. 4 The constructional quality acceptance of engineering shall be conducted on the basis of that the constructional quality passes the self-inspection and evaluation conducted by the construction organization. 3.1.4 Metering instruments, tools and apparatuses used for constructional quality acceptance of engineering shall be qualified upon calibration and also be within the validity period. 3.1.5 Prior to commencement of engineering, the development organization shall organize engineering design, construction, supervision, operation and maintenance organizations to conduct inspection and confirmation for the standards and gauges of the integrated grounding terminal, trough, groove, pipe and hole reserved by civil engineering organization and the interfaces of foundation of box-type machine room, etc. 3.2 Division of the Constructional Quality Acceptance Units of Engineering 3.2.1 The constructional quality acceptance units of high-speed railway signaling engineering shall be divided into unit project, divisional project, and subitem project and inspection lot. 3.2.2 Unit project shall be divided by a system with relative independent functions or a construction scope with considerable scale and shall be determined according to the following principles: 1 Station computer based interlocking (CBI): one station (yard) and the equipment within the territorial jurisdiction constitute one unit project. 2 Chinese train control system (CTCS): ground equipment of one system constitute one unit project. 3 Centralized traffic control (CTC): one system is one unit project. 4 Centralized signaling monitor (CSM): one system is one unit project. 3.2.3 Divisional project shall be divided by a complete part or a relatively independent construction stage. 3.2.4 Subitem project may be divided by work type, working procedure, equipment, material and construction process, etc. 3.2.5 Inspection lot shall be divided according to the requirements of construction, quality control and acceptance. 3.2.6 For high-speed railway signaling engineering, division of unit project and divisional project shall be in accordance with those specified in Table 3.2.6-1, and division and inspection items of subitem project and inspection lot shall be in accordance with those specified in Table 3.2.6-2. Table 3.2.6-1 Division of Unit Project and Divisional Project in Signaling Engineering Category of unit project Name of divisional project Category of unit project Name of divisional project Station computer based interlocking (CBI) Optical cable line Chinese train control system (CTCS) Indoor equipment Fixed trackside signal and signboard Box-type machine room Switch device Lightning protection, electromagnetic compatibility and grounding Turnout snow-melting device System inspection Track circuit Centralized traffic control (CTC) Optical cable line Indoor equipment Indoor equipment (center, station and CTC equipment) Lightning protection, electromagnetic compatibility and grounding Lightning protection, electromagnetic compatibility and grounding System inspection System inspection Chinese train control system (CTCS) Optical cable line Centralized signaling monitor (CSM) Optical cable line Fixed trackside signal and signboard Indoor equipment (monitoring equipment at each station) Track circuit Lightning protection, electromagnetic compatibility and grounding balise and outdoor lineside electronic unit System inspection On-board ground checkout equipment Table 3.2.6-2 Division and Inspection Items of Divisional Project, Subitem Project and Inspection Lot Name of divisional project Subitem project Inspection lot Serial number of provisions for inspection items of inspection lot Dominant item General item Optical cable line Cable laying Station with 20 or below groups of turnouts is 1 station; station with more than 21 groups of turnouts is 1 throat Interval is divided by the interval under jurisdiction of station or relay station 4.2.1~4.2.4 4.2.5~4.2.6 Cable protection 4.3.1~4.3.9 4.3.10~4.3.11 Cable connection 4.4.1~4.4.5 4.4.6 Cable terminating Every machine room 4.5.1~4.5.3 4.5.4 Optical cable laying Complying with the relevant requirements in TB 10755-2010 Standard for Constructional Quality Acceptance of High-speed Railway Communication Engineering Optical cable connection and entry Performance inspection of optic cable line Box installation Every 10 boxes 4.6.1~4.6.5 4.6.6~4.6.7 Box wiring Every 10 boxes 4.7.1~4.7.3 Fixed trackside signal and signboard High color light signal Every 10 signals 5.2.1~5.2.8 5.2.9~5.2.11 Ground color light signal Every 10 signals 5.3.1~5.3.7 5.3.8 Signal signboard Every 10 signboards 5.4.1~5.4.6 5.4.7 Switch device Mounting device Scope of every 10 groups of turnouts 6.2.1~6.2.7 External locking device Scope of every 10 groups of turnouts 6.3.1~6.3.6 Switch machine Scope of every 10 groups of turnouts 6.4.1~6.4.7 6.4.8 Point closure inspection device Every 10 groups 6.5.1~6.5.6 Locking inspection device Every 10 groups 6.6.1~6.6.3 Turnout snow-melting device Turnout snow-melting device Every 10 groups of turnouts 6.7.1~6.7.10 Track circuit Trackside equipment Every 10 sections 7.2.1~7.2.7 7.2.8 Compensation capacitor Every station or station jurisdiction section 7.3.1~7.3.7 Steel rail insulation Every station 7.4.1~7.4.3 Track connecting line Every station or station jurisdiction section 7.5.1~7.5.7 7.5.8~7.5.10 Choke transformer Every station (every interval) 7.6.1~7.6.7 Balise and outdoor lineside electronic unit Balise Every station or station jurisdiction section 8.2.1~8.2.9 Outdoor lineside electronic unit (LEU) Every station or station jurisdiction section 8.3.1~8.3.3 On-board ground checkout equipment On-board ground test equipment box and test loop Every section (station) 9.2.1~9.2.4 9.2.5 BTM antenna test equipment Every section (station) 9.3.1 Indoor equipment Control display equipment Every set 10.2.1~10.2.3 Power supply equipment Every machine room 10.3.1~10.3.4 10.3.5 Cabinet (rack) equipment Every machine room 10.4.1~10.4.5 10.4.6 Indoor wiring Every machine room 10.5.1~10.5.3 10.5.4~10.5.5 Cable entry Every machine room 10.6.1~10.6.4 10.6.5 Box-type machine room Box-type machine room Every box-type machine room 10.7.1~10.7.5 10.7.6 Lightning protection, electromagnetic compatibility and grounding Lightning protection of equipment Every station or station jurisdiction section 11.2.1~11.2.3 Grounding and electromagnetic compatibility of indoor equipment Every machine room 11.3.1~11.3.10 11.3.11 Grounding of outdoor equipment Every station or station jurisdiction section 11.4.1~11.4.10 11.4.11 Grounding of box-type machine room Every box-type machine room 11.5.1~11.5.4 Integrated grounding system Every station or station jurisdiction section 11.6.1~11.6.3 11.6.4 System inspection Single item inspection of equipment Every item 12.2.1~12.2.16 Subsystem inspection One system 12.3.1~12.3.4 System inspection Every system (station, interval) 12.4.1~12.4.12 3.3 Content and Requirements of Constructional Quality Acceptance of Engineering 3.3.1 Quality acceptance of inspection lot shall include the following contents: 1 Physical inspection: Inspection on equipment and materials shall be carried out according to approaching lots and the sampling inspection scheme specified in this standard; inspection on working procedure quality shall be carried out according to the sampling inspection scheme specified in this standard. 2 Data examination: Quality certificates (including quality inspection report and quality certificate) of equipment and materials; construction records, self-inspection record, handing over inspection record, parallel acceptance testing report, witness testing report, etc. of working procedure. 3 Quality responsibility confirmation: Confirmation of quality responsibility registration of responsible construction personnel. 3.3.2 Acceptable quality of inspection lot shall meet the following requirements: 1 Quality of all dominant items shall be acceptable upon inspection. 2 Quality of all general items shall be acceptable upon inspection; as for the random inspection points with allowable deviation, unless otherwise particularly specified, at least 80% of them shall be controlled within the specified allowable deviation, and the maximum deviation shall not be greater than 1.5 times of the specified allowable deviation. 3 Each inspection lot shall be provided with complete construction operation criteria and quality inspection records. 4 The quality responsibility of responsible construction operation personnel shall be registered authentically and completely. 3.3.3 Acceptable constructional quality of subitem project shall meet the following requirements: 1 All inspection lots in subitem project shall meet the acceptable quality requirements; 2 The quality acceptance records shall be complete. 3.3.4 Acceptable constructional quality of divisional project shall meet the following requirements: 1 Quality of all subitem projects in divisional project shall be acceptable upon inspection; 2 The quality acceptance records shall be complete. 3.3.5 Acceptable constructional quality of unit project shall meet the following requirements: 1 Quality of all divisional projects in unit project shall be acceptable upon inspection; 2 The quality control data shall meet the requirements upon checking; 3 Inspection of entity quality and main functions; 4 Appearance quality acceptance. 3.3.6 When the quality of inspection lot fails to meet the requirements, the inspection lot shall be treated according to the following requirements: 1 The inspection lot reworked or with equipment and material replaced shall be subject to acceptance again. 2 The inspection lot meeting service requirements upon test and appraisal by the qualified test organization shall be accepted. 3.3.7 The divisional project and unit project still failing to meet the safety and use function requirements after repair must not be accepted. 3.4 Procedure and Organization of Constructional Quality Acceptance of Engineering 3.4.1 The inspection lot shall be acceptable upon the self-inspection of construction organization and then be reported to the supervision organization, and then the supervising engineer shall organize the full-time quality inspector of construction organization to carry out acceptance. The construction organization shall inspect all dominant items and general items. The supervision organization shall inspect all the dominant items and may determine the inspection contents and quantity of general items according to specific circumstances. Quality acceptance record of inspection lot shall be filled in according to Table 3.4.1. For dominant items, the inspection and evaluation records of construction organization and the acceptance record of supervision organization shall be filled in detail; for general items, these records may be filled in with general conclusions. Table 3.4.1 Quality Acceptance Record of __________ Inspection Lot Name of unit project Name of divisional project Name of subitem project Acceptance position Construction organization Project director Name and serial number of standard for constructional quality acceptance Requirements of standard for constructional quality acceptance Inspection and evaluation records of construction organization Acceptance record of supervision organization Dominant item 1 2 3 4 5 6 7 8 9 General item 1 2 3 4 5 Quality responsibility registration of construction personnel On-site confirmation condition of survey and design organization (if required) On-site principal Date: Inspection and evaluation results of construction organization Full-time quality inspector Date: Technical director of subitem project Date: Director of subitem project Date: Acceptance conclusion of supervision organization Supervising engineer Date: Note: For quality responsibility registration of construction personnel, the construction personnel shall affix signature according to position and working procedure respectively. 3.4.2 The supervising engineer shall organize the subitem project technical director of construction organization to carry out acceptance of subitem project and to fill in acceptance record according to Table 3.4.2. Table 3.4.2 Quality Acceptance Record of __________ Subitem Project Name of unit project Name of divisional project Inspection lot number Construction organization Project director No. Inspection lot position Inspection and evaluation results of construction organization Acceptance conclusion of supervision organization 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Explanation: Self-inspection result of construction organization Technical director of subitem project Date: On-site confirmation condition of survey and design organization (if required) On-site principal Date: Acceptance conclusion of supervision organization Supervising engineer Date: Note: The survey and design organization shall participate in the acceptance of system interface inspection subitem project. 3.4.3 The supervising engineer shall organize the project, technical and quality directors of construction organization to carry out acceptance of divisional project, and the project director of survey and design organization shall participate in the acceptance as required and also fill in acceptance record according to Table 3.4.3. 3.4.4 After completing a unit project, the construction organization shall organize the personnel concerned to carry out self-inspection; after the unit project passes the inspection, the construction organization shall file a unit project acceptance application to the development organization. Table 3.4.3 Quality Acceptance Record of _________ Divisional Project Name of unit project Construction organization Project director Project technical director Project quality director No. Name of subitem project Inspection lot number Inspection and evaluation results of construction organization Acceptance conclusion of supervision organization 1 2 3 4 5 6 7 8 9 10 Quality control data Inspection (testing) report for entity quality and main functions Acceptance organization Construction organization Project director Date: Survey and design organization (if required) Project director Date: Supervision organization Supervising engineer Date: Notes: 1 The survey and design organization shall participate in the acceptance of system interface inspection divisional project. 2 The quality control data check and checking items of entity quality and main functions shall be determined according to Table 13.3.1-4. 3.4.5 Upon receipt of the application for project acceptance, the project director of the development organization shall organize the project directors of construction, design and supervision organizations to carry out acceptance of unit project and to fill in the acceptance record according to Table 3.4.5. Unit project acceptance shall include the overall quality evaluation, and the latter shall meet the relevant requirements of Chapter 13. Table 3.4.5 Quality Acceptance Record of Unit Project Name of unit project Construction organization Project director Commencement date Project technical director Project quality director Completion date No. Item Acceptance record Acceptance conclusion 1 Divisional project ____ divisional projects in total Upon inspection, ____ divisional projects meet the design and standard requirements 2 Overall quality acceptance Quality control data check ____ items in total Upon checking, ____ items meet the requirements ____ items fail to meet the requirements 3 Check record of entity quality main functions ____ items are checked in total ____ items meet the requirements ____ items fail to meet the requirements 4 Appearance quality acceptance ____ items are inspected in total ____ items are evaluated as qualified ____ items are evaluated as unqualified 5 Overall acceptance conclusion Acceptance participant Construction organization Supervision organization Survey and design organization Development organization (Official seal) Project director Date: (Official seal) Chief supervising engineer Date: (Official seal) Project director Date: (Official seal) Project director Date: 3.4.6 In case of any disagreement among the acceptance participants on the constructional quality acceptance of engineering, the railway construction competent administrative department shall be requested to coordinate and handle it.   4 Optical Cable Line 4.1 General Requirements 4.1.1 Constructional quality acceptance of optical cable line includes cable laying, protection, connection and terminating as well as box installation and wiring. 4.1.2 Box shall be so installed to ensure not intruding into the railway structure gauge. 4.1.3 Constructional quality acceptance of optic cable lines for signal shall refer to the relevant requirements of TB 10755 Standard for Constructional Quality Acceptance of High-speed Railway Communication Engineering. 4.1.4 Laying, protection, etc. of buried cable shall meet the relevant requirements of TB 10419 Standard for Constructional Quality Acceptance of Railway Signal Engineering. 4.2 Cable Laying Dominant items 4.2.1 Signal cables shall be subject to site acceptance, and their specification, model, quantity and quality shall meet the requirements of design and relevant technical standards. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting the material object and quality certificate against the design document and the order contract. 4.2.2 The items and results of single-coil test for signal cable prior to laying shall meet the requirements of Table A.0.1 in Annex A. Inspection quantity: Complete inspection conducted by construction organization and witness testing conducted by supervision organization. Inspection method: Testing the electrical performance of cables with tramegger, capacity coupling meter, cable tester, multimeter and other instruments by making reference to relevant technical standards. 4.2.3 Signal cable laying shall meet the following requirements: 1 Cables shall be laid according to ends A and B. For the main cable, direction of ends A and B shall be unified; for the branch cable, end A shall be connected with end B successively. 2 The outer sheath of cable insulation shall be free from any damage, deformation and back bending. Cables laid in trough shall be arranged orderly, without intersection. 3 The minimum bending radius of cable during laying shall meet the following requirements: 1) The bending radius of composite sheathed cable shall not be less than 15 times the outside diameter of cable; 2) The bending radius of inner shielded digital cable shall not be less than 20 times the outside diameter of cable; 3) The bending radius of data cable in balise shall not be less than 20 times the outside diameter of cable; 4) The bending radius of tail cable in balise shall not be less than 10 times the outside diameter of cable. 4 In case of no physical isolation between signal cable and other cables in handhole and manhole, the signal cable sign shall be provided. Inspection quantity: Complete inspection conducted by construction organization and at least 10% parallel acceptance testing conducted by supervision organization. Inspection method: Inspecting by observing and measuring. 4.2.4 The remaining length of cable shall meet the following requirements: 1 Where the main cable is directly buried, the remaining length at each end shall not be less than 2m; where the main cable is laid in cable trough, the remaining length enough for head making for one time shall be kept; for the branch cable shorter than 50m, no remaining length may be kept. 2 The indoor remaining length of outdoor cable shall not be less than 5m. 3 In case of underground connection of cable, the remaining length of cable at each end of connection point shall be enough for one time of connection. 4 No remaining length shall be kept at both ends of bridge and tunnel as well as in handhole and manhole at both sides of line. 5 The remaining cable in trough shall be laid in "∽" shape regally, and the digital cable for track circuit and the balise cable must not be reeled into a closed coil. Inspection quantity: Complete inspection conducted by construction organization and at least 10% parallel acceptance testing conducted by supervision organization. Inspection method: Inspecting by observing and measuring. General items 4.2.5 Where the cable is laid in reserved cable trough, the trough bottom shall be flat, smooth and impurity-free. Inspection quantity: Complete inspection conducted by construction organization. Inspection method: Inspecting by observing. 4.2.6 For cables laid in box, cable direction nameplate shall be provided at both ends of cable. Inspection quantity: Complete inspection conducted by construction organization. Inspection method: Inspecting by observing. 4.3 Cable Protection Dominant items 4.3.1 Cable protective appliances shall be subject to site acceptance, and their specification, model, quantity and quality shall meet the requirements of design and relevant technical standards. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting the material object and quality certificate against the design document and the order contract. 4.3.2 Protection for the cable at the positions led onto and out of bridge shall meet the following requirements: 1 For steel trough laid through the reserved sawtooth hole at expansion joint to the ground along pier, the wall thickness shall not be less than 2mm and the trough shall be subject to hot galvanizing treatment. 2 The clearance at connection of steel cable trough on box girder and pier shall be 5mm~10mm. 3 The movable lapped face at the connection of transitional steel trough between two box girders shall not be less than 50mm. 4 Cable trough on girder and pier shall be connected gently, and its bending radius shall meet the requirements for bending radius of cable. 5 Steel trough and the cables in it shall be fixed by sections at a spacing not larger than 1,500mm. 6 For the underground part of steel trough, the buried depth of its lower end below the ground shall not be less than 500mm. For the cable trough aboveground, it shall be protected with brickwork externally, and the brickwork height shall not be less than 2,000mm. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing and measuring. 4.3.3 Where steel pipe is adopted as the protective pipe, the pipe orifice shall be well polished and also be provided with measures to avoid the cable being incised. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing. 4.3.4 Where the signal cable is laid crossing over power cable, it shall be protected with steel pipe. Where the power cable is laid crossing over signal cable, the power cable shall be protected with steel trough or SMC pipe. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing. 4.3.5 The cable led from cable trough to the exposed part of equipment shall be protected with protective sleeve, and the cover plate of cable trough shall be tightly blocked with cement concrete mortar. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing and measuring. 4.3.6 Where the signal cable is laid on high slope, at deep cutting section or crossing over the top of culvert, it shall be protected with cable trough or steel pipe, and the exposed part of steel pipe shall be enveloped with brick and concrete. Where the cable is laid at outer side of bridge, it shall be protected with copper trough or composite trough. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing. 4.3.7 Where the signal cable is laid at the waterproof layer of subgrade surface, it shall be protected with galvanized steel pipe or UPVC pipe. After construction, the waterproof layer of subgrade surface shall be restored. Inspection quantity: Complete inspection conducted by construction organization and supervision organization. Inspection method: Inspecting by observing. 4.3.8 Where the cable is laid trough bridge joint, cable trough protection shall be added at the disconnection of cable trough. Inspection quantity: Complete inspection conducted by construction organization and at least 10% inspection conducted by supervision organization.

Contents of TB 10756-2010

1 General Provisions 2 Terms and Abbreviations 2.1 Terms 2.2 Abbreviations 3 Basic Requirements 3.1 General Requirements 3.2 Division of the Constructional Quality Acceptance Units of Engineering 3.3 Content and Requirements of Constructional Quality Acceptance of Engineering 3.4 Procedure and Organization of Constructional Quality Acceptance of Engineering 4 Optical Cable Line 4.1 General Requirements 4.2 Cable Laying 4.3 Cable Protection 4.4 Cable Connection 4.5 Cable Terminating 4.6 Box Installation 4.7 Box Wiring 5 Fixed Trackside Signal and Signboard 5.1 General Requirements 5.2 High Color Light Signal 5.3 Ground Color Light Signal 5.4 Signal Signboard 6 Switch Device and Turnout Snow-melting Device 6.1 General Requirements 6.2 Mounting Device 6.3 External Locking Device 6.4 Switch Machine 6.5 Point Closure Inspection Device 6.6 Locking Inspection Device 6.7 Turnout Now-melting Device 7 Track Circuit 7.1 General Requirments 7.2 Trackside Equipment 7.3 Compensation Capacitor 7.4 Steel Rail Insulation 7.5 Track Connecting Line 7.6 Choke Transformer 8 Balise and Outdoor Lineside Electronic Unit 8.1 General Requirments 8.2 Balise 8.3 Outdoor Lineside Electronic Unit (LEU) 9 On-board Ground Checkout Equipment 9.1 General Requirments 9.2 On-board Ground Test Equipment Box and Test Loop 9.3 BTM Antenna Test Equipment 10 Indoor Equipment and Box-type Machine Room 10.1 General Requirments 10.2 Control Display Equipment 10.3 Power Supply Equipment 10.4 Cabinet (rack) Equipment 10.5 Indoor Wiring 10.6 Cable Entry 10.7 Box-type Machine Room 11 Lightning Protection, Electromagnetic Compatibility and Grounding 11.1 General Requirements 11.2 Lightning Protection of Equipment 11.3 Grounding and Electromagnetic Compatibility of Indoor Equipment 11.4 Grounding of Outdoor Equipment 11.5 Grounding of Box-type Machine Room 11.6 Integrated Grounding System 12 System Inspection 12.1 General Requirements 12.2 Single-item Inspection of Equipment 12.3 Subsystem Inspection 12.4 System Interface Inspection 13 Overall Quality Evaluation of Unit Project 13.1 General Requirements 13.2 Quality Control Data Check for Unit Project 13.3 Entity Quality and Main Function Check for Unit Project 13.4 Evaluation on Quality of Appearance of Unit Project Annex A Main Electrical Performance Indexes of Various Signal Cables Annex B System Test Record Wording Explanation in This Standard