1、M422-14Fire-performance and antistaticrequirements for conveyor beltingLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approvedby the Standards Council of Canada. This process brings together vol
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18、ate ServiceM422-14November 2014Title: Fire-performance and antistatic requirements for conveyor beltingTo register for e-mail notification about any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is
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20、oduced in any form whatsoeverwithout the prior permission of the publisher.Published in November 2014 by CSA GroupA not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6To purchase standards and related publications, visit our Online Store at sh
21、op.csa.caor call toll-free 1-800-463-6727 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association, operating as “CSA Group”Fire-performance and antistaticrequirements for conveyor beltingM422-14M422-14Fire-performance and antistatic requirementsfor conveyor beltingNovember 2014 2014 C
22、SA Group 1ContentsTechnical Committee on Fire Resistant Conveyor Belting 3Preface 51 Scope 62 Definitions 73 Test requirements 73.1 Classification of belting 73.2 Types A1 and A2 belting 73.2.1 Flame test Types A1 and A2 belting 73.2.2 Drum friction test 73.2.3 Flame propagation test Types A1 and A2
23、 belting 83.2.4 Electrical surface resistance test Types A1 and A2 belting 83.3 Types B1-A, B1-B, and B2 belting 83.3.1 Flame test Types B1-A, B1-B, and B2 belting 83.3.2 Drum friction test 83.3.3 Flame propagation test Types B1-A, B1-B, and B2 belting 93.3.4 Electrical surface resistance test Types
24、 B1-A, B1-B, and B2 belting 93.4 Type C belting 93.4.1 Flame test 93.4.2 Drum friction test 93.4.3 Electrical surface resistance test 94 Test methods 94.1 Flame test for Types A1 and A2 belting 94.1.1 Samples 94.1.2 Equipment 104.1.3 Procedure 104.2 Flame test for Types B1-A, B1-B, B2, and C belting
25、 114.2.1 Samples 114.2.2 Equipment 114.2.3 Procedure 124.3 Drum friction test for all types belting 124.3.1 Samples 124.3.2 Equipment 124.3.3 Procedure 134.4 Flame propagation test for Types A1, A2, B1-A, B1-B, and B2 belting 144.4.1 Samples 144.4.2 Equipment 144.4.3 Procedure 144.5 Electrical resis
26、tance test for all belting types 154.5.1 Samples 154.5.2 Equipment 154.5.3 Preparation of sample 16M422-14Fire-performance and antistatic requirementsfor conveyor beltingNovember 2014 2014 CSA Group 24.5.4 Procedure 165 Branding 16Annex A (informative) Recommended installation measures 30Annex B (in
27、formative) Guideline for conformity assessment to CSA M422 31M422-14Fire-performance and antistatic requirementsfor conveyor beltingNovember 2014 2014 CSA Group 3Technical Committee on Fire ResistantConveyor BeltingE. Zalok Carleton University,Ottawa, OntarioCategory: General InterestChairJ. Appleya
28、rd Potash Corporation of Saskatchewan,Saskatoon, SaskatchewanAssociateD. Ashby Veyance Technologies Canada Inc.,Bowmanville, OntarioAssociateN. Crocker Saskatoon, Saskatchewan AssociateJ.L. Freitas Quinsam Coal Corp,Campbell River, British ColumbiaCategory: User InterestG.B. Ganguly International Co
29、nveyors Ltd,Aurangabad, IndiaAssociateM. Harrington Teck Coal Ltd - Fording River Operations,Elkford, British ColumbiaAssociateJ.A. Holcombe Veyance Technologies, Inc,Marysville, Ohio, USACategory: Producer InterestA. (Aamer) Hussain International Conveyors Ltd,Lynbrook, New York, USAAssociateA. (An
30、ver) Hussain International Conveyors Ltd,Aurangabad, IndiaCategory: Producer InterestI. Jordan Continental Mine ii) The following clauses have been restructured:1) Clause 4.1 Flame test for belt types A1 and A2;2) Clause 4.2 Flame test for belt types B1-A, B1-B, B2, and C;3) Clause 4.3 Drum friction
31、 test for all belt types;4) Clause 4.4 Flame propagation test for belt types A1, A2, B1-A, B1-B, and C; and5) Clause 4.5 Electrical resistance test for all belt types;iii) a new Figure 1,“Typical arrangement for flame test for belt type A1 and A2”, has been added;andiv) Figures 1 to 9 in the previou
32、s edition have been renumbered to Figures 2 to 10 in this edition.b) Annex B.“Guideline for conformity assessment to CSA M422”, has been added.CSA Group gratefully acknowledges that the development of this Standard was made possible, in part,by the financial support of the Canadian Association of Ad
33、ministrators of Labour Legislation forOccupational Safety and Health.This Standard was prepared by the Technical Committee on Fire Resistant Conveyor Belting under thejurisdiction of the Standards Steering Committee on Occupational Health and Safety, and has beenformally approved by the Technical Co
34、mmittee.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 this Standard is stated in its Scope, it is important to note that itremains the responsibility of the users of the Standard to judge its suitabilit
35、y for their particular purpose.3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization Codeof good practice for standardization as “substantial agreement. Consensus implies much more than a simplemajority, but not necessarily unanimity”. It is consistent
36、 with this definition that a member may be included inthe Technical Committee list and yet not be in full agreement with all clauses of this Standard.4) To submit a request for interpretation of this Standard, please send the following information toinquiriescsagroup.org and include “Request for int
37、erpretation” in the subject line:a) define the problem, making reference to the specific clause, and, where appropriate, include anillustrative sketch;b) provide an explanation of circumstances surrounding the actual field condition; andc) where possible, phrase the request in such a way that a spec
38、ific “yes” or “no” answer will address theissue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governingstandardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.5) This Standard is subject to review five ye
39、ars from the date of publication. Suggestions for its improvement willbe referred to the appropriate committee. To submit a proposal for change, please send the followinginformation to inquiriescsagroup.org and include “Proposal for change” in the subject line:a) Standard designation (number);b) rel
40、evant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.M422-14Fire-performance and antistatic requirementsfor conveyor beltingNovember 2014 2014 CSA Group 6M422-14Fire-performance and antistaticrequirements for conveyor belting1 Scope1.1This Stand
41、ard specifies fire-performance and antistatic requirements for new (unused) conveyor beltingfor use in any part of a mining or excavation operation that is below the surface.1.2This Standard covers fire-performance and antistatic conveyor belting of the following types:a) Types A1 and A2 intended fo
42、r use in explosive atmospheres; andb) Types B1-A, B1-B, B2, and C intended for use in non explosive atmospheres.1.3This Standard does not cover products of combustion or products of thermal degradation fromconveyor belting subjected to fire or heating.Note: While the intent of this Standard is to es
43、tablish a reasonable level of fire-performance for conveyor belting, itis recognized that any conveyor belt material could burn under conditions different from those described in thisStandard. Therefore, to ensure a higher level of fire safety, consideration should be given to installation measuress
44、uch as those listed in Annex A.1.4A guideline for conformity assessment to this Standard is provided in Annex B.1.5In CSA standards,“shall” is used to express a requirement, i.e., a provision that the user is obliged tosatisfy in order to comply with the standard; “should” is used to express a recom
45、mendation or thatwhich is advised but not required; and “may” is used to express an option or that which is permissiblewithin the limits of the standard.Notes accompanying clauses do not include requirements or alternative requirements; the purpose of anote accompanying a clause is to separate from
46、the text explanatory or informative material.Notes to tables and figures are considered part of the table or figure and may be written asrequirements.Annexes are designated normative (mandatory) or informative (non-mandatory) to define theirapplication.M422-14Fire-performance and antistatic requirem
47、entsfor conveyor beltingNovember 2014 2014 CSA Group 72 DefinitionsThe following definitions shall apply in this Standard:Antistatic (as applied to conveyor belting) having a sufficient conductance to pass the electricalsurface resistance test specified in this Standard.Explosive atmosphere an atmos
48、phere where ignitable and explosive concentrations of gases,vapours, or dusts might occur.Fire-performance (as applied to conveyor belting) the characteristics of the belting that meet thecriteria of the appropriate flame, drum friction, and flame propagation tests where specified in thisStandard.Pr
49、opane Type HD-5 or equivalent with a propane content of no less than 90%.3 Test requirements3.1 Classification of beltingIn order to be classified, belting shall meet all the criteria in all the tests specified for a particular type.Note: It is recognized that, due to the large number of combinations of various carcasses and covers, it isimpractical to conduct individual tests on every single member of a series of conveyor belting. In most cases,certain members of a series would be selected for testing. For example, for a series o
