CSA C22 2 NO 183 2-M1983-1983 DC Electrical Installations on Boats (First Edition).pdf

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1、C22.2 No. 183.2-M1983(reaffirmed 2013)DC electrical installations on boatsLegal 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

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16、 Information Update “. For subscription details and a free sample copy, write to CSA Information Centre or telephone (416) 744-4058. May, 1983 Foreword DC Electrical Installations on Boats 7 The Canadian Standards Association provides certifica- tion services for manufacturers who, under license fro

17、m 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, interchangeability and/or s

18、afety, as appropriate. Where applicable, certification may form the basis for acceptance by inspection authorities respons- ible for enforcement of regulations. Where feasible, programs will be developed for additional products for which certification is desired by producers, consumers or other inte

19、rests. In performing its functions in accordance with its objec- tives, 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 consideration to the neces

20、sary 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 found acceptable utili

21、zing 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 discovered to contrav

22、ene applicable 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 Standard the CSA Certification

23、 Division may require special cautions, mark- ings 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 that may occur during or as the result

24、 of tests, wherever performed, whether performed in whole or in part by the manufac- turer 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. Manufacturers should note that, in the event

25、ofthefailure of the CSA Certification Division to resolve an issue aris- ing 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 Association. If this Standard is to be used in obtainin

26、g CSA Certifica- tion please remember, when making application for certification, to request all current Amendments, Bullet- ins, Notices and Technical Information Letters that may be applicable and for which there may be a nominal charge. For such information or for further information concerning d

27、etails 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 DateMay 31, 1983 (i.e., the date on or after which this Standard may, at the discretion of the ap

28、plicant, be used for certification). *Effective DateMay 31, 1983 (i.e., the date on which this Standard shall beapplicableto equipment being submitted for certification and to equipment already certified and manufactured on or after that date). * Unless otherwise noted in the text or Genera/Instruct

29、ion. May, 1983 8 GSA Standard G22.2 No. 183.2-Mi 983 C22.2 No. 183.2-M1983 DC Electrical Installations on Boats 9 1. Scope 1.1 This Standard covers the dc electrical installations not exceeding 50 V between conductors on boats. 1.2 This Standard applies to boats that are not required to be certifica

30、ted by the Department of Transport. 1.3 The requirements of this Standard are based on CSA Standard 022.1, Canadian Electrical Code, Part I. Where no specific requirements are given herein those of the Canadian Electrical Code, Part I, shall apply. 1.4 This Standard does not apply to the internal wi

31、ring of outboard motors. 2. Definitions 2.1 The following definitions apply in this Standard: Boat means any ship or vessel, except a seaplane, used or designed to be used in navigation; Bonding means the electrical connection of the exposed, non-current-carrying metal parts to the ground (negative)

32、 side of the direct current system; Bonding conductor means a normally non-current- carrying conductor used to connect the non-current- carrying metal parts of a boat and the non-current- carrying metal parts of direct current devices on the boat to the boats bonding system; Common bonding conductor

33、 means an electrical con- ductor, usually running fore and aft, to which all equip- ment bonding conductors are connected; Engine negative terminal means the point on the engine at which the negative battery cable is connected; External-ignition protection means that the design and construction of a

34、 device is such that under design operat- ing conditions: (a) It will not ignite a flammable hydrocarbon mixture surrounding the device when an ignition source causes an internal explosion; (b) It is incapable of releasing sufficient electrical or thermal energy to ignite a hydrocarbon mixture; or (

35、C) The source of ignition is hermetically sealed. (A flammable hydrocarbon mixture is a mixture of gaso- .line and air or propane and air between the lower explo- sive limit (LEL) and the upper explosive limit (UEL).) Notes: (1) It is not the intention to require such devices to be “explosion-proof“

36、 as that term is defined in the Canadian Electrical Code pertaining to shore systems. It is in tended that the protection provided be generally equivalent to that of wiring permitted by this Standard wherein a defi- nite short or break would be necessary to produce an open spark. (2) Equipment compl

37、ying with CSA Standard 022.2 No. 157, Intrinsically Safe and Non-incendive Equipment for Use/n Hazardous Locations, is considered to comply with this requirement. Ground means a surface or mass at the potential of the earths surface, established at this potential by a conduct- ing connection (intent

38、ional or accidental) with the earth, including any metal area that forms part of the wetted surface of the hull; Grounded means connected effectually with the general mass of the earth through a grounding path of sufficiently low impedance and having an ampacity sufficient at all times, under the mo

39、st severe conditions that are liable to occur, to prevent any current in the ground path from causing a harmful voltage to exist: (a) Between the grounding conductors and exposed conducting surfaces that are in good contact with the earth; or (b) Between the grounding conductors and the surface of t

40、he earth itself; Grounding conductor means a path of copper or other suitable metal whereby electrical equipment is electri- cally connected to ground; Polarized system meansasystem in which the grounded (negative) and ungrounded (positive) conductors are connected in the same relation to terminals

41、or leads on devices in the circuit. 3. General Requirements 3.1 General. General requirements applicable to this Standard are given in CSA Standard 022.2 No.0, General Requirements Canadian Electrical Code, Part II. 3.2 Ambient Temperature. Unless specified otherwise, the ambient temperature of mach

42、inery spaces is consid- ered to be 50C and of all other spaces is considered to be 30C. 3.3 System Voltage. The preferred voltages are 12, 24, and 32 V dc. 3.4 Reference Publications 3.4.1 Where reference is made to CSA Standards of the Canadian Electrical Code, Parts I and II, such reference shall

43、be considered to refer to the latest edition and revi- sion 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: 022.1-1982, Canadian Electrical Code, Part I; 022.2 No. 0-M19

44、82, General Requirements Canadian Electrical Code, Part II; 022.2 No. 94-1976, Special Purpose Enclosures 2, 3, 4, and 5; 022.2 No. 157-M1979, Intrinsically Safe and Non-incendive Equipment for Use in Hazardous Locations. May, 1983 10 CSA Standard C22.2 No. 183.2-M1983 3.4.2 Where reference is made

45、to the following Publica- tion such reference shall be considered to refer to that edition listed below: ANSI/IEEE* Standard 45-1977, Recommended Practice for Electric Installations on Shipboard. *,4merjcan National Standards Institute/Institute of Elec- trical and Electronics Engineers, Inc. 4. Con

46、struction 4.1 General 4.1.1 Direct current electrical distribution systems shall be of the two-wire type. The feed and return wires should run togetherthroughout the system and shall run together where the wiring is routed near compasses or other magnetically sensitive equipment (see Figures 1 and 2

47、). Note: Engine-mounted equipment may be of the one- wire type. 4.1.2 The hull or the bonding system shall not be used as a return circuit except as permitted by Clause 4.5.3 (see Figures 1 and 2). 4.1.3 If one side of a two-wire direct current system is connected to ground, it shall be the negative

48、 side and polarized as defined in Clause 2. 4.1.4 If a boat has more than one inboard engine, grounded cranking motor circuits shall be connected to each other by a common conductor that can carry the starting current of each of the grounded cranking motor circuits (see Clause 4.12.2.6). 4.1.5 The e

49、lectrical power distribution system connec- tions shall be made as follows: (a) The negative terminal of the battery and the negative side of the electrical power distribution system shall be connected to the engine negative terminal or its bus. On boats with outboard motors the load return lines shall be connected to the batt