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GB 24407-2012: [Including 2017XG1] The safety technique specifications of special school
GB 24407-2012
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 59
Replacing GB 24407-2009
The safety technique specifications of special school
buses
[Including Amendment 1 -- 2017XG1]
ISSUED ON: APRIL 10, 2012
IMPLEMENTED ON: MAY 01, 2012
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 8 
2 Normative references ... 8 
3 Terms and definitions ... 10 
4 Classification of types of special school buses ... 11 
5 Requirements and test methods ... 12 
6 Transitional requirements for standard implementation ... 36 
Annex A (normative) Test method for upper structure strength ... 37 
Annex B (normative) Stopping signal plate ... 39 
Annex C (normative) Test method for driver’s field of vision ... 41 
Amendment 1 [2017XG1] ... 44 
The safety technique specifications of special school
buses
1 Scope
This Standard specifies the terms and definitions, type classification,
requirements and test methods for special school buses.
This Standard is applicable to special school buses for groups over 3 years old
at the kindergarten stage and those educated at the nine-year compulsory
education stage.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 2406.2, Plastics - Determination of burning behavior by oxygen index
- Part 2: Ambient-temperature test
GB/T 2408-2008, Plastics - Determination of burning characteristics -
Horizontal and vertical test
GB 4351.1, Portable fire extinguishers 0- Part 1: Performance and
construction
GB/T 5454, Textiles - Burning behavior - Oxygen index method
GB 5768.2-2009, Road traffic signs and markings - Part 2: Road traffic signs
GB 8410-2006, Flammability of automotive interior materials
GB/T 8627-2007, Test method for density of smoke from the burning or
decomposition of building materials
GB/T 12428-2005, Laden mass calculating method for buses
GB 12676, Technical requirements and testing methods for commercial
vehicle and trailer braking systems
GB 13057, Strength of the seats and their anchorages of passenger vehicles
GB 13094-2007, The safety requirements for bus construction
GB/T 13594, Antilock braking performance and test procedure for motor
vehicles and their trailers
GB 13954-2009, Warning Lamps for Police Cars, Fire Engines, Ambulances
and Engineering Rescue Vehicles
GB 14166, Safety-belts, restraint systems, child restraint systems and
ISOFIX child restraint systems for occupants of power-driven vehicles
GB 14167, Safety-belt anchorages, ISOFIX anchorages systems and
ISOFIX top tether anchorages for vehicles
GB/T 14172, Static roll stability test method for motor vehicles
GB 15083, Motor vehicles - Seat systems - Strength requirements and test
methods
GB 15084, Motor vehicles - Devices for indirect vision - Requirements of
performance and installation
GB 17578, Requirements and test methods of strength for the superstructure
of bus
GB/T 17729, Hygienic standard for the air quality inside long distance coach
GB/T 18833, Retroreflective sheeting for traffic control
GB 18986, The safety requirements for light bus construction
GB/T 19056, Vehicle travelling data recorder
GB/T 19596-2004, Terminology of electric vehicles
GB 24315, The marker for school bus
GB 24406, The strength of seats and their anchorages of special school bus
for schoolchildren
GB/T 24545, Requirement of speed limitation system for motor vehicles
GB/T 28370, Detect methods for the air quality inside long distance coach
JT/T 782, Performance requirements and test methods of tyre blow-out
emergency safety device for commercial vehicle
5 Requirements and test methods
5.1 Appearance marks and main structure sizes
5.1.1 The special school bus shall be sprayed with the appearance mark of the
special school bus that meets the requirements of GB 24315.
5.1.2 The front of the special school bus shall be equipped with a collision safety
structure. If it is a front transverse engine, the centerline of the engine
crankshaft shall be before the front point of the windshield. If it is a front
longitudinal engine, the centerline of the first and second cylinders of the engine
shall be before the foremost point of the windshield. If the front collision
performance of the large and medium-sized special school bus is not lower than
the first two structures, the layout of the engine may not be limited.
NOTE: The centerline of the first and second cylinders of the engine refers to the centerline
of the distance between the first and second cylinders of the engine.
5.1.3 Articulated buses and double-decker buses shall not be used as special
school buses.
5.1.4 The height of the dedicated school bus shall not be greater than 3.7m.
5.1.5 If there is a side luggage compartment, the height of the top of the luggage
compartment from the ground shall be less than 1.0m.
5.1.6 Special school buses must not be equipped with luggage racks outside
the vehicle.
5.1.7 There shall be no holes inside or outside the bus that can easily catch the
fingers of children and elementary school students. There shall be no
protrusions, depressions, sharp corners and other defects that may cause
personal injury.
5.2 Dynamic
The specific power of special school buses (except electric special school
buses) shall not be less than 9.0kW/t.
NOTE 1: Electric special school buses refer to the types of electric vehicles defined in GB/T
19596-2004: pure electric vehicles, hybrid (electric) vehicles, fuel cell electric vehicles.
NOTE 2: The specific power is the ratio of the maximum net power of the engine (or 0.9
times the rated power of the engine or 0.9 times the rated power of the engine) to the
maximum allowable total mass of the motor vehicle.
5.3 Mass of passengers and crew and maximum number of passengers
5.8 Front and rear bumpers
5.8.1 Special school buses shall be equipped with front and rear bumpers.
5.8.2 The bumper shall be connected to the frame or body frame. The front
bumper shall extend forward to the front of the radiator grille, headlights, hood
part and so on and extend outward to the outer edge of the wheel cover to
provide maximum protection. The rear bumper shall cover the rear corner of the
body.
5.8.3 There shall be no protrusions, depressions, or sharp corners on the
bumper that may cause personal injury.
5.9 Roll stability
Test according to the method specified in GB/T 14172. Load the plane on the
seat cushion of each seat according to the mass of passengers and crew
specified in 5.3.1 (if there is a luggage compartment, the luggage compartment
shall not be loaded). The load must be firmly fixed to the seat. The measured
roll stability angle shall not be less than 32°. Simultaneously measure under no
load. The measured roll stability angle shall not be less than 35°.
5.10 Body structure, strength, exit and interior layout
5.10.1 Body structure
5.10.1.1 Large and medium-sized special school buses shall have a body frame
structure. The top beam, column and main beam of the underframe on the same
cross section shall form a clos...