CSA C22 2 NO 22-M1986-1986 Electrical Equipment for Flammable and Combustible Fuel Dispensers (Fourth Edition).pdf

1、C22.2 No. 22-M1986(reaffirmed 2013)Electrical equipment for flammable and combustible fuel dispensersLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. T

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16、tions are published in “CSA Information Update“. For subscription details and a free sample copy, write to CSA Business Development Group or telephone (416) 747-2292. C22.2 No. 22-M1986 6 February. 1986 Foreword Foreword Canadian Standards Association provides certification services for manufacturer

17、s who, under license from CSA, wish to use the appropriate registered CSA Marks on certain products of their manufacture to indicate conformity with CSA Standards. CSA Certification for a number of products is provided in the interest of maintaining agreed-upon standards of quality, performance, int

18、erchangeability and/or safety, as appropriate. Where applicable, certification may form the basis for acceptance by inspection authorities responsible for enforcement of regulations. Where feasible, programs will be developed for additional products for which certification is desired by producers, c

19、onsumers or other interests. In performing its functions in accordance with its objectives, CSA does not assume or undertake to discharge any responsibility of the manufacturer or any other party. The opinions and findings of the Association represent its professional judgement given with due consid

20、eration to the necessary limitations of practical operation and state of the art at the time the Standard is processed. Products in substantial accord with this Standard but which exhibit a minor difference or a new feature may be deemed to meet the Standard providing the feature or difference is fo

21、und acceptable utilizing appropriate CSA Certification Division Operating Procedures. Products which comply with this Standard shall not be certified if they are found to have additional features which are inconsistent with the intent of this Standard. Products shall not be certifiable if they are d

22、iscovered to contravene applicable Federal laws or regulations. Testing techniques, test procedures and instrumentation frequently must be prescribed by the CSA Certification Division in addition to the technical requirements contained in Standards of CSA. In addition to markings specified in the St

23、andard the CSA Certification and Testing Division may require special cautions, markings and instructions that are not specified by the Standard. Some tests required by CSA Standards may be inherently hazardous. The Association neither assumes nor accepts any responsibility for any injury or damage

24、that may occur during or as the result of tests, wherever performed, whether performed in whole or in part by the manufacturer or the Association, and whether or not any equipment, facility or personnel for or in connection with the test is furnished by the manufacturer or the Association. Manufactu

25、rers should note that, in the event of the failure of the CSA Certification and Testing Division to resolve an issue arising from the interpretation of requirements, there is an appeal procedure: the complainant should submit the matter, in writing, to the Secretary of the Canadian Standards Associa

26、tion. If this Standard is to be used in obtaining CSA Certification please remember, when making application for certification, to request all current Amendments, Bulletins, Notices and Technical Information Letters that may be applicable and for which there may be a nominal charge. For such informa

27、tion or for further information concerning details about CSA Certification please address your inquiry to the Applications and Records Section, Canadian Standards Association, 178 Rexdale Boulevard, Rexdale (Toronto), Ontario M9W 1R3. Publication Date: February 28, 1986 (ie, the date on or after whi

28、ch this Standard may, at the discretion of the applicant, be used for certification). *Effective Date: February 28, 1986 (ie, the date on which this Standard shall be applicable to equipment being submitted for certification and to equipment already certified and manufactured on or after that date).

29、 * Unless otherwise noted in the text or General Instruction. Electrical Equipment for Flammable and Combustible Fuel Dispensers February, 1986 7 ScopeDefinitionsGenera! Requirements C22.2 No. 22-M1986 Electrical Equipment for Flammable and Combustible Fuel Dispensers 1. Scope 1.1 This Standard appl

30、ies to the electrical features of power-operated dispensers for petroleum-based liquids, including propane and lighter-than-air fuel such as natural gas, used as fuel in internal combustion engines, where such devices are operated at 750 V and less, in accordance with the Rules of the Canadian Elect

31、rical Code, Part I, and are intended to dispense the fuel directly into the fuel storage tank for the engine. 2. Definitions 2.1 The following definitions apply in this Standard: Base means that part of the dispenser assembly upon which the dispenser will be installed. Combustible liquid means a liq

32、uid having a flash point at or above 38 C. Dispenser means an assembly intended to dispense a motor fuel in quantities selected by a human operator. The assembly may include a power- operated pump, pressure relief device, deaerator, strainer, metering assembly, indicating assembly, control valves, h

33、ose, hose nozzle, motor control, locking mechanism, electrical fixtures, wiring, or other optional electrical devices (and housing for all or part of the aforementioned items). These components may be integral with the device or arranged for operation remote from the fuelling area. Flammable liquid

34、means any liquid having a flash point below 38C and having a vapour pressure not exceeding 276 kPa (absolute) at 38 C. Housing means that section of the device which encloses and is intended to protect operating parts, control mechanisms, or other components, damage to which would renderthe device i

35、ncapable of being operated properly, lead to tampering, or introduce the possibility of escape of fuel. Lighter-than-air fuel such as natural gas means a mixture of various hydro-carbon gases and vapours consisting primarily of methane (CH4) in gaseous form and having a specific gravity in the range

36、 of 0.5 to 0.7. Panel means the principal section of a housing or enclosure and/or a mounting arrangement for control and other components. Propane means a material having a vapour pressure not exceeding that allowed for commercial propane, and composed predominantly of the following hydrocarbons, e

37、ither by themselves or as mixtures: propane, propylene, butane (normal butane or iso-butane), and butylene. Solid partition means a partition that prevents the migration of vapours between hazardous locations of different classification. 3. General Requirements 3.1 General requirements applicable to

38、 this Standard are given in CSA Standard C22.2 No. 0, General RequirementsCanadian Electrical Code, Part II. 3.2 Reference Publications 3.2.1 Where reference is made to CSA Standards of the Canadian Electrical Code, Parts I and II, such reference shall be considered to refer to the latest edition an

39、d revisions thereto, unless otherwise specified. This Standard refers to the following such Standards and the year dates shown indicate the latest editions available at the time of printing: C22.1 -1986, Canadian Electrical Code, Part I; C22.2 No. 0-M1982, General RequirementsCanadian Electrical Cod

40、e, Part II; Electrical Equipment for Flammable and Combustible Fuel Dispensers February. 1986 9 General RequirementsConstruction C22.2 No. 0.4-M1982, Bonding and Grounding of Electrical Equipment (Protective Grounding); 022.2 No. 0.5-1 982, Threaded Conduit Entries; 022.2 No. 94-1 976, Special Purpo

41、se Enclosures 2, 3, 4, and 5; 022.2 No. 137-M1981, Electric Luminaires for Use in Hazardous Locations; 022.2 No. 139-1 982, Electrically Operated Valves; 022.2 No. 142-M1981, Process Control Equipment; 022.2 No. 145-1 972, Motors and Generators for Use in Hazardous Locations; Class I, Groups C and D

42、; Class II, Groups E, F and G; 022.2 No. 157-M1979, Intrinsically Safe and Non-incendive Equipment for Use in Hazardous Locations; 022.2 No. 174-M1984, Cables and Cable Glands for Use in Hazardous Locations. 3.2.2 Where reference is made to the following Publica- tions not under the jurisdiction of

43、the Standards Steering Committee on the Canadian Electrical Code, Part II, such reference shall be considered to refer to that edition listed below: CSA Standard B346-M1 980, Power-Operated Dispensing Devices for Flamma- ble Liquids; CGA* Standard CAN/CGA-1 2.4-M84, Dispensing Devices for Propane En

44、gine Fuel. * Canadian Gas Association. 4. Construction 4.1 Components 4.1.1 Component parts shall be of types specifically approved for the use intended or shall be investigated with and as an integral part of the electrical equipment. 4.1.2 Electrical components shall be supported inde- pendently o

45、f the electrical conduit and/or cable approved for hazardous locations with associated cable glands. 4.1.3 The mechanical features of a dispenser shall conform to the requirements of CGA Standard CAN/CGA-12.4 or CSA Standard B346. 4.2 Boxes and Fittings 4.2.1 General Each conduit run and/or cable ap

46、proved for hazardous locations with associated cable glands, to which field connections are to be made shall terminate in an outlet box or enclosure acceptable for use in Class I, Division 1 Hazardous Locations, Group D Atmospheres, as specified in the Canadian Electrical Code, Part I. Where it is n

47、ecessary that circuits in dispensers be supplied from different systems, they shall run in separate conduits and/or cable approved for hazardous locations with associated cable glands; and either separate boxes shall be provided or a suitable barrier of sheet steel not less than 1.34 mm thick, or an

48、 equivalent insulating material, shall be used to divide all enclosures into separate compartments for the two systems. 4.2.2 Location Outlet boxes shall be so located that connections can be readily made and so that ample clearance is provided between them and adjacent parts so as to permit grippin

49、g the installation conduit or fitting with an appropriate wrench. The clearance shall permit wrench movement of not less than 45. The clearance vertically between the lower end of the outlet box hubs and the lower edge of the dispenser base shall be sufficient to permit the field installation of a sealing fitting, a conduit union, and a flexible metallic fitting. This clearance shall be not less than 180