GB 24407-2012The safety technique specifications of special school (English PDF)

3 Terms and definitions

4 Classification of the types of dedicated school bus

5 Requirements and test methods

6 Transition requirements for the implementation of the standard

Foreword

All technical contents of this standard are mandatory.

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB 24407-2009 Safety technique specifications of special school bus for primary schoolchildren. Compared with GB 24407-2009, apart from editorial changes, the main technical changes are as follows:

- the title of the standard has been changed to "Safety technique specifications of special school bus";

- the scope of the standard (see Clause 1) has been modified to read: "This standard applies to special school buses carrying children aged 3 years and above at the kindergarten stage and those receiving nine-year compulsory education.";

- the terms and definitions have been modified (see Clause 3): the 4 terms "school bus", "school bus for schoolchildren", "special school bus for schoolchildren" and "fender" in GB 24407-2009 have been deleted; "special school bus" has been modified; "special school buses for infants", "special school buses for primary students", "special school buses for primary and junior middle school students" and "stopping signal plate" have been added;

- "Classification of special school bus types" has been added (see Clause 4);

- the requirements for the front collision structure, the external identification, the vehicle height limit and the limit on the height of the top of the luggage compartment above the ground have been modified (see 5.1);

- a power performance requirement has been added (see 5.2);

- the mass of infants for special school buses for infants and the mass of students for special school buses for primary and junior middle school students have been added, the mass of attendants has been modified, and the maximum number of occupants for each type of special school bus has been added (see 5.3);

- requirements have been added for the steering system (see 5.4), braking system (see 5.5), transmission system (see 5.6), running system (see 5.7), front and rear bumpers (see 5.8), roll stability (see 5.9), body structure (see 5.10.1) and roof structure strength (see 5.10.2);

- the requirements for superstructure strength have been modified (see 5.10.3);

- the provisions on the types, positions, number and dimensions of exits have been modified (see 5.10.4.1.1): the number and position of service doors have been re-specified, and the dimensions of service doors are specified separately for light and for large and medium buses; the requirement "Emergency doors and emergency windows shall not be located above the exhaust pipe outlet, and emergency windows shall not be located above the stopping signal plate." has been added; the types and minimum number of emergency exits have been re-specified, with the emergency door as the basic emergency exit; the minimum dimensions of emergency doors, emergency windows and escape hatches are as specified in GB 13094;

- the structural requirements for side windows have been modified (see 5.10.4.1.2): a requirement on the transparency of side windows has been added;

- the technical requirements for exits have been modified (see 5.10.4.1.3): the opening method of an emergency door in the rear panel of the vehicle, the requirement for glazed windows in service doors and emergency doors, and requirements for the safety protection of occupants at service doors and emergency doors with a height of less than 1 700 mm have been added; the technical requirements for exits are specified separately for light and for large and medium buses; the requirements for the service doors of large and medium special school buses have been made stricter;

- the requirements for steps have been modified (see 5.10.4.2): other requirements for steps and requirements for retractable steps have been supplemented;

- the requirements for the access to service doors have been modified (see 5.10.4.3.1): the model corresponding to vertical plate 2 in Figure 1 of GB 24407-2009 has been deleted; the requirement of 4.6.1.5 of GB 24407-2009 concerning the area in front of seats installed above the wheel housings has been deleted; 4.6.1.8 and 4.6.1.9 of GB 24407-2009 have been deleted; a requirement for the slope of the floor at the access has been added;

- the requirements for the access to emergency doors have been modified (see 5.10.4.3.2): the requirement of 4.6.2.2 of GB 24407-2009 has been deleted;

- the accessibility of emergency windows has been modified (see 5.10.4.3.3): the provision of 4.6.3.3 of GB 24407-2009 on emergency exits for vehicles with fewer than 33 occupants has been deleted;

- the accessibility of escape hatches has been modified (see 5.10.4.3.4): the requirement for floor exits has been deleted (see 4.6.4.2 of GB 24407-2009);

- the requirements for gangways have been modified (see 5.10.4.4): the requirement on steps in the gangway has been modified, requiring that there be no steps in the gangway inside the vehicle; for special school buses of 8 m and above, the diameter of the lower cylinder of the gangway measuring device has been increased to 350 mm (300 mm in GB 24407-2009); the gangway height of large and medium special school buses is required to be not less than 1 800 mm; a requirement for the gangway slope has been added; the provision of 4.6.5.4 of GB 24407-2009 has been deleted;

- requirements for the driver's safety belt and its anchorages have been added (see 5.10.5.1.1.1 and 5.10.5.1.1.3);

- the requirements for attendant seats have been modified (5.10.5.1.2): requirements for the number of attendant seats in special school buses for infants and in special school buses for primary and junior middle school students have been added, the requirement for the position of attendant seats has been modified, and the requirement for the number of attendant seats in special school buses for primary students has been modified;

- requirements for infant seats have been added and the requirements for student seats have been modified (see 5.10.5.1.3): the requirements for safety belts for primary students and their vehicle anchorages have been modified, requiring 2-point safety belts; a seating layout of at most 2+3 is required; requirements for backrest thickness, maximum backrest height and backrest width have been added; the range of seat handle heights has been adjusted; no infant or student seat may be installed forward of the transverse vertical plane through the R point of the driver's seat; seats are required to be padded; the width requirements for individual seats have been adjusted; relevant requirements for infant seats and for primary and junior middle school student seats have been added; the minimum seat cushion width of an individual seat has been changed from 400 mm to 380 mm; the corresponding requirements for passengers with reduced mobility have been deleted (4.3.6 of GB 24407-2009);

- the requirements for seated passenger space have been modified (see 5.10.5.1.4): requirements for the seat spacing of special school buses for infants, the seat spacing of special school buses for primary and junior middle school students and the spacing of attendant seats have been added, and the seat spacing measurement diagram has been modified; a new minimum value has been added for the horizontal distance from the front edge of the seat cushion to the obstacle in front, for passenger seats located behind a partition or other rigid structure that is not a seat; requirements for the space above seated passengers for infant seats, seats of special school buses for primary and junior middle school students and attendant seats have been added; the free space at the wheel housings has been changed from 1 200 mm to 1 250 mm, and one set of dimensions near the side wall for the footrest of outboard seats has been deleted;

- the requirements for restraint barriers in front of seats have been modified (see 5.10.5.2): the determination of the position of the restraint barrier has been changed from being based on the R point, as in GB 24407-2009, to being based on the G point, the G point being taken 100 mm behind the R point; the position of the restraint barriers for the seats of special school buses for infants, for the seats of special school buses for primary and junior middle school students and for attendant seats has been added; a requirement for padding of restraint barriers has been added; the requirement for the height of the lower edge of the restraint barrier above the floor has been refined; the requirements for restraint barriers have been modified;

- handrails suitable for infants and primary students have been added, and the requirements for handrails have been improved and refined (see 5.10.5.3);

- requirements for the first-aid kit (see 5.10.5.5), interior trim (see 5.10.5.7) and signal system (see 5.11) have been added;

- the requirements for fire prevention and fire control measures have been modified (see 5.12): the requirements for the high-temperature resistance and flame retardancy of wiring have been modified; the flame retardancy requirements for materials in the engine compartment and near the eddy-current retarder have been modified; a requirement for a temperature alarm device near the retarder has been added; a requirement for the arrangement of the main power switch has been added; an emergency switch has been added; requirements for the relative positions of the exhaust system, fuel lines and electrical circuits have been added; requirements for fire extinguishing equipment and an alarm device in the engine compartment have been added; a requirement for fire extinguishers in the passenger compartment has been added;

- the requirements for the driver's field of vision have been modified (see 5.13): a requirement that, with the service door closed, the driver shall still be able to observe the situation near the service door outside the vehicle has been added; requirements for an auxiliary reversing device and a windscreen defrosting and demisting device have been added; the requirements for interior vision devices have been modified;

- the requirements for in-vehicle air quality have been modified (see 5.14): a requirement for the composition of in-vehicle air has been added;

- the requirements for the driving information recording and processing system have been modified (see 5.15): requirements for the functions of the vehicle travelling data recorder and for an interior and exterior video monitoring system have been added;

- a requirement for a stop reminder sign on the rear panel of special school buses has been added (see 5.16);

- the requirement of 4.10 of GB 24407-2009 on the position of audio-visual entertainment devices has been deleted;

- transition period requirements for the implementation of the standard have been added (see Clause 6);

- "Annex A Test method for roof structure strength" and "Annex B Stopping signal plate" have been added.

This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.

This standard is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).

Drafting organizations of this standard: Zhengzhou Yutong Bus Co., Ltd., China Automotive Technology and Research Center, and the Bus Branch of the China Highway and Transportation Society.

Participating drafting organizations of this standard: National Bus Quality Supervision and Inspection Center, Dongfeng Xiangfan Tourist Car Co., Ltd., Nanjing Iveco Automobile Co., Ltd., Dandong Huanghai Automobile Co., Ltd., Jinhua Youngman Automobile Manufacturing Co., Ltd., Yangzhou Yaxing Motor Coach Co., Ltd., Baoding Changan Bus Manufacturing Co., Ltd., China FAW Co., Ltd., King Long United Automotive Industry (Suzhou) Co., Ltd., Xiamen King Long United Automotive Industry Co., Ltd., Beiqi Foton Motor Co., Ltd., Anhui Ankai Automobile Co., Ltd., Chengdu Bus Co., Ltd., TRW Automotive Braking Systems (Shanghai) Co., Ltd. and Jiangsu Kuangda Automobile Textile Group Co., Ltd.

Main drafters of this standard: Zhou Huici, Tang Wang, Wu Xiaoguang, Ma Chunxin, Zhang Changgeng, Li Weijing, Dong Xiaokun, Zhang Zhe, Lu Changjun, Si Junde, Wang Xiangyang, Qiao Huilin, Sun Ying, Diao Wei, Cao Fei, Li Sou, Kuang Yong, Deng Yulin, Li Guilan, Chen Xindi, Zhou Jianguo, Su Liang, Zhao Tianhong and Deng Hai.

This standard was first issued in 2009; this is its first revision.