CSA D250-2012 School buses (Ninth Edition).pdf

1、D250-12School busesLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied viewpoints and interest

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13、 the elements of this standard may be the subject of patent rights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.Au

14、thorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:sLOADTHISDOCUMENTONTOACOMPUTERFORTHESOLEPURPOSEOFREVIEWINGITsSEARCHANDBROWS

15、ETHISDOCUMENTANDsPRINTTHISDOCUMENTIFITISIN0$changes to school bus classifications to correspond to class designations in the United States;provision of a pedestrian-student safety crossing arm; requirements for eight-light warning systems; andother changes with regard to mirrors, heaters, strobe lam

16、p performance, space requirements at rear emergency exits, etc.This edition introduces new requirements forschol buses that are designed to be wheelchair accessible. These requirements are taken from CSA D409-02, Motor vehicles for the transportation of persons with physical disabilities. The ration

17、ale for including these requirements in CSA D250 is to make it easier for industry to know which CSA D409 requirements were applicable to the construction of school buses; a handrail to be located at the service door entrance; and a side intrusion test to assess the suitability of new materials used

18、 in the construction of the school bus body.This Standard is in effect for vehicles manufactured after June 1, 2013. The manufacturing date of the vehicle is considered to be the date on the federal compliance label. This Standard was prepared by the Technical Committee on School Buses, under the ju

19、risdiction of the Strategic Steering Committee on Mechanical and Industrial Equipment Safety, and has been formally approved by the Technical Committee.Notes: (1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.(2) Although the intended primary application of t

20、his Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.(3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization Code of good pract

21、ice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standar

22、d.(4) To submit a request for interpretation of this Standard, please send the following information to inquiriescsagroup.org and include “Request for interpretation” in the subject line:(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative

23、sketch;(b) provide an explanation of circumstances surrounding the actual field condition; and(c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guidelines

24、governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.(5) This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the foll

25、owing information to inquiriescsagroup.org and include “Proposal for change” in the subject line:(a) Standard designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change. 2012 CSA Group School busesOctober 2012 1D250-12Sch

26、ool buses1Scope1.1This Standard specifies the chassis and body requirements and safety equipment requirements for school buses.Note: The main purpose of this Standard is to provide the safest possible vehicle for students using school buses. It needs to be stressed, however, that standards are not s

27、ubstitutes for thorough, ongoing, and comprehensive safety training of students and drivers.1.2This Standard applies to(a) Type A1, A2, B, C, and D school buses; and(b) Type A1, A2, B, C, and D accessible school buses.1.3This Standard does not cover after-market and retrofit installations. These ins

28、tallations are covered by provincial and territorial regulations.Note: It is the responsibility of the appropriate jurisdiction to inspect and approve these installations.1.4In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to

29、comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.Notes accompanying clauses do not include requirements or alternative requirements;

30、the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.Notes to tables and figures are considered part of the table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (nonmandatory) to define

31、their application. 1.5The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made, it shall

32、 be to the edition listed below, including all amendments published thereto.CSA GroupO121-M1978 (R2003)Douglas fir plywoodD250-12 2012 CSA Group2 October 2012O151-04Canadian softwood plywoodCAN/CSA-Z604-03 (R2008)Transportable mobility aidsCAN/CSA-Z605-03 (R2008)Mobility aid securement and occupant

33、restraint (MASOR) systems for motor vehiclesAPA The Engineered Wood AssociationPS 1-95Construction and Industrial PlywoodASTM International (American Society for Testing and Materials)B117-07Standard Practice for Operating Salt Spray (Fog) ApparatusD750-06Standard Test Method for Rubber Deterioratio

34、n Using Artificial Weathering ApparatusD1894-06Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and SheetingD2047-04Standard Test Method for Static Coefficient of Friction of Polish-Coated Flooring Surfaces as Measured by the James MachineD5963-04 (2010)Standard T

35、est Method for Rubber Property-Abrasion Resistance (Rotary Drum Abrader)E308-06Standard Practice for Computing the Colors of Objects by Utilizing the CIE SystemE810-03 (2008)Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar GeometryE1164-02Sta

36、ndard Practice for Obtaining Spectrometric Data for Object-Color EvaluationCGSB (Canadian General Standards Board)1-GP-12c-1968 (withdrawn)Standard Paint Colors: Part III Chroma ticities and Luminous ReflectancesChemical Fabrics and Film AssociationStandard Test Methods: Chemical Coated Fabrics and

37、Film (2011)Note: This publication is available at http:/ standards/stm2011.pdf.Government of CanadaMotor Vehicle Safety Act, SC 1993, c. 16Motor Vehicle Safety Regulations, CRC, c. 1038Note: The sections of these regulations cited in this Standard bear the following section numbers and titles:(a) Se

38、ction 108: Lighting System and Retroreflective Devices (Standard 108);(b) Section 111: Mirrors; 2012 CSA Group School busesOctober 2012 3(c) Section 131: School Bus Pedestrian Safety Devices (Standard 131);(d) Section 205: Glazing Materials;(e) Section 207: Anchorage of Seats;(f) Section 208: Occupa

39、nt Restraint Systems in Frontal Impact (Standard 208);(g) Section 209: Seat Belt Assemblies (Standard 209);(h) Section 210: Seat Belt Anchorages (Standard 210);(i) Section 217: Bus Window Retention, Release and Emergency Exits;(j) Section 222: School Bus Passenger Seating and Crash Protection; and(k

40、) Section 302: Flammability of Interior Materials (Standard 302).NCST (National Congress on School Transportation)National School Transportation Specifications and Procedures (2010)NHTSA (National Highway Traffic Safety Administration)School Bus Handrail Handbook (1996)SAE International (Society of

41、Automotive Engineers)J377 (2001)Vehicular Traffic Sound Signaling DevicesJ381 (2000)Windshield Defrosting Systems Test Procedure and Performance Requirements Trucks, Buses, and Multipurpose VehiclesJ683 (1985)Tire Chain Clearance Trucks, Buses (Except Suburban, Intercity, and Transit Buses), and Com

42、binations of VehiclesJ774 (2006)Emergency Warning Device and Emergency Warning Device Protective ContainerJ887 (2004)School Bus Warning LampsJ941 (2002)Motor Vehicle Drivers Eye LocationsJ1050 (2003)Describing and Measuring the Drivers Field of ViewJ1100 (2005)Motor Vehicle DimensionsJ1318 (1998) (c

43、ancelled)Gaseous Discharge Warning Lamp for Authorized Emergency, Maintenance, and Service VehiclesJ1349 (2004)Engine Power Test Code Spark Ignition and Compression Ignition As Installed Net Power RatingJ2402 (2010)Road Vehicles Symbols for Controls, Indicators, and Tell-TalesANSI/SAE Z26.1-1996Safe

44、ty Glazing Materials for Glazing Motor Vehicles and Motor Vehicle Equipment Operating on Land HighwaysD250-12 2012 CSA Group4 October 2012Transport CanadaTP 13903E (2002)Comparison of Two Advance Stop Signalling Systems Used on Canadian School Buses: Amber Lights and Red LightsNote: This publication

45、 is available on request from Transport Canada.ULC (Underwriters Laboratories of Canada)CAN/ULC-S504-02Dry Chemical Fire ExtinguishersU.S. Federal StandardFED-STD-595C-09Colors Used in Government ProcurementU.S. Military StandardMIL-C-62218A (1992) (superseded)Corrosion Preventive Compounds, Cold Ap

46、plication (for New and Fielded Motor Vehicles and Trailers)3 DefinitionsThe following definitions shall apply in this Standard:Accessible school bus a school bus that is designed to carry a person in a mobility aid (primarily children to and from school or related events).Fixed vehicle structure a s

47、tructure that is attached to a vehicle and cannot be removed without tools. Note: Wheelchairs and wheelchair tie-downs are not considered fixed structures.Gross axle weight rating (GAWR) the value specified by the vehicle manufacturer as the load-carrying capacity of a single axle system, as measure

48、d at the tire-ground interfaces.Gross vehicle weight (GVW) the loaded weight of a single vehicle, as measured at the tire-ground interfaces.Note: The loaded weight is the sum of the unloaded vehicle weight, rated cargo load, 54 kg (120 lb) times the number of designated seating positions, and 68 kg

49、150 lb) for the driver.Gross vehicle weight rating (GVWR) the value specified by the vehicle manufacturer as the load-carrying capacity of a single vehicle, as measured at the tire-ground interfaces.Mobility aid a device used to facilitate transport, in a seated posture, of a person with a disability.Note: Examples