GB 24407-2012 English PDF

Delivery: 2 working-hours manually (Sales@ChineseStandard.net)
Need delivered in 3-second? USA-Site: GB 24407-2012
Get Quotation: Click GB 24407-2012 (Self-service in 1-minute)
Historical versions (Master-website): GB 24407-2012
Preview True-PDF (Reload/Scroll-down if blank)

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 closed ring (except for the wheel cover and the top
wind window). The body column between the longitudinal beams from the side
windows to the bottom beams shall adopt an integral structure. No tailor welding
is allowed in the middle. If the body structure of the light special school bus
does not adopt the above structure, it shall adopt the structure of the cover and
the reinforced beam.
5.10.1.2 The passenger area of the special school buses for infants shall adopt
a flat floor structure. There must be no steps on the floor, except for the local
structural protrusions of the wheel cover and the access cover.
5.10.1.3 The floor coverings in the riding area, passage area and approach area
shall be non-slip and wear resistant.
5.10.2 Top structural strength
The top structural strength is tested according to Annex A, in accordance with
the following requirements:
a) During the test, the body structure shall be able to withstand the specified
5.10.5.1 Seats
5.10.5.1.1 Driver's seat
5.10.5.1.1.1 The driver's seat shall be equipped with a 3-point seat belt.
5.10.5.1.1.2 The strength of the driver's seat and its vehicle fixings shall meet
the requirements of GB 15083.
5.10.5.1.1.3 The safety belt of the driver's seat and its fixing points shall meet
the requirements of GB 14166 and GB 14167 respectively.
5.10.5.1.2 Seat of caregiver
5.10.5.1.2.1 At least one caregiver seat shall be installed on the special school
bus. When the number of child seats on the special school buses for infants is
greater than or equal to 20 and less than 40, 2 or 3 seats for caregivers shall
be installed. 3 or 4 seats for caregivers shall be installed when there are more
than 40 seats. When the number of student seats on the special school buses
for primary school students and special school buses for primary and junior
middle school students is greater than or equal to 40, 2 or 3 seats for caregivers
shall be installed. When there is only one caregiver's seat, the caregiver's seat
shall be located at the front of the vehicle aisle and close to the passenger door.
When there is more than one caregiver seat, there shall be at least one
caregiver seat close to the emergency door.
5.10.5.1.2.2 The caregiver seat shall be marked.
5.10.5.1.2.3 Seat belts for caregivers shall be equipped.
5.10.5.1.2.4 The strength of the front-mounted caregiver seat and its vehicle
fixings shall meet the requirements of GB 13057.
5.10.5.1.2.5 The seat belts and their fixing points of the caregiver's seat shall
meet the requirements of GB 14166 and GB 14167 respectively.
5.10.5.1.3 Seats for infants and students
5.10.5.1.3.1 Seats for infants and students shall be arranged forward. Infants
and student seats shall not be folding seats. The seats for infants and students
shall not be provided before the horizontal and vertical plane where the driver's
seat R is located. Infants and student seats are arranged at most "2+3" in the
transverse direction of the vehicle.
5.10.5.1.3.2 The strength of infant and student seats and their vehicle fixtures
shall meet the requirements of GB 24406.
5.10.5.1.3.3 Each infant and student seat shall be equipped with a two-point
5.10.5.1.4.3 Free space above the seat
Free space above each seat:
a) Each seat shall have a vertical clear space. From the plane where the
highest point of the seat cushion that has never been squeezed locates
upwards, it shall not be less than 900mm. From the floor where
passengers rest on their feet upwards, it shall not be less than 1350mm
(see Figure 8). For the wheel cover and the rear seat, it can be reduced
to 1250mm.
b) This clear space shall include all the horizontal areas described below:
1) Horizontal area: Between the longitudinal vertical planes at 165mm on
both sides of the center vertical plane of the special school buses for
infants; Between the longitudinal vertical planes at 175mm on both
sides of the center vertical plane of the special school buses for primary
school students; Between the longitudinal vertical planes at 190mm on
each side of the center vertical plane of the student seat of the special
school buses for primary and junior middle school students; Between
the longitudinal vertical planes at 200mm on both sides of the center
vertical plane of the caregiver seat;
2) Vertical area: Between the horizontal vertical plane where the special
school buses for infants passes through the last point of the upper part
of the seat back AND the horizontal vertical plane 200mm forward
through the front end of the uncompressed seat cushion; Between the
horizontal vertical plane where the special school buses for primary
school students passes through the last point of the upper part of the
seat back AND the horizontal vertical plane 200mm forward through the
front end of the uncompressed seat cushion; Between the horizontal
vertical plane where the special school buses for primary and junior
middle school students passes through the last point of the upper part
of the seat back AND the horizontal vertical plane 280mm forward
through the front end of the uncompressed seat cushion; Between the
horizontal vertical plane passing through the last point of the upper part
of the seat back of the caregiver and the horizontal vertical plane
passing the front end of the uncompressed seat cushion 280mm
forward. Measurements are made on the vertical plane of the seat
center.
c) The clear space may not include the following areas:
1) The cross section of the side wall above the window seat is an inverted
right triangle area. The apex of the triangle is located 650mm above the
floor, and the bottom side is 100mm wide (see Figure 8).
on the mounting bracket.
5.10.5.6 Interior lighting
5.10.5.6.1 The interior lighting shall cover the following areas:
- All passenger area and crew area;
- All steps;
- Approaches to all exits and areas near the passenger door;
- Internal signs and internal controls for all exits;
- Where there are obstacles.
5.10.5.6.2 There shall be at least two internal lighting circuits. When one line
fails, it shall not affect the lighting of the other line. The line used for
conventional lighting at the entrance and exit can be used as one of them.
5.10.5.6.3 Protective measures shall be taken to prevent the driver from being
affected by interior lighting and reflected light.
5.10.5.7 Interior decoration
The interior trim parts shall be firmly fixed on the vehicle. There shall be no
sharp corners, sharp edges, or burrs that may cause injury.