CSA C22 2 NO 183 1-M1982-1982 Alternating-Current (AC) Electrical Installations on Boats (First Edition).pdf

1、C22.2 No. 183.1-M1982(reaffirmed 2013)Alternating-current (AC) 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 p

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15、m:sLOADTHISDOCUMENTONTOACOMPUTERFORTHESOLEPURPOSEOFREVIEWINGITsSEARCHANDBROWSETHISDOCUMENTANDsPRINTTHISDOCUMENTIFITISIN0$ Conductor means a wire or cable, or other form of metal, installed for the purpose of conveying electric current from one piece of electrical equipment to another or to ground; E

16、ngine negative termlnaZ means the point on the engine at which the negative-battery cable is connected; Ext ernal-ignitkzi irotecticil means that the design and construction of a device is such that under design operating conditions: (a) It will not ignite a flammable hydro-carbon mixture* surroundi

17、ng the device when an ignition source causes an internal explosion; (b) It is incapable of releasing sufficient electrical or thermal energy to ignite a hydroearbon mixture; or Notes (1) It is not the intention to require such devices to be “explosion-proof“ as that term is defined in the Canadian E

18、lectrical Code pertaining to shore systems. It is intended that the protection provided be generally equivalent to that of wiring permitted by this Standard wherein a definite short or break would be necessary to produce an open spark. (2) Non-incendive equipment complying with CSA Standard C22.2 No

19、. 157, Intrinsically Safe and Non- incendive Equipment for Use in Hazardous Locations, is considered to comply. Ground means a connection to earth. The boats ground is established by a conducting connection with earth, including any conductive part of the wetted surface of a hull; Grounded means con

20、nected 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 most severe conditions that are liable to occur, to prevent any current in the grounding path from causing a harmful voltage to exist

21、: (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 the earth itself; Grounding condiu,tor means a path of copper or other suitable metal whereby electrical equipment is electricall

22、y connected to ground; Machinery space means a compartment that houses one or more fuel-driven engines; Pdarized system means a system in which the grounded (white) and ungrounded conductors are connected in the same relation to all terminals and leads on all equipment in the circuit; Shore-power in

23、Zet means a recessed-male-type fitting designed for mounting on the boat and requiring a female type of connector on the shore cable in order to make the electrical connection. (c) The source of ignition is hermetically sealed; *A flammable hydro- carbon mixture is a mixture of gasoline and air or p

24、ropane and air between the lower explosive limit (LEL) and the upper explosive limit (UEL). March, 1982 10 CSA Standard C22.2 No. 183.1M1982 3. General Requirements 3.1 General requirements applicable to this Standard are given in CSA Standard C22.2 No. 0, Definitions and General Requirements. 3.2 A

25、mbient Temperature. Unless specified other- wise, the ambient temperature of machinery spaces is considered to be 50C and that of all other spaces 40C. The ambient temperature for shore-power cables shall be considered to be 30C. 3.3 Supply Connections 3.3.1 The entire alternating-current (ac) elect

26、rical system, including shore-power cable(s) for connecting the boat wiring to any on-shore electrical outlet(s), shall be designed and installed to perform its intended function with minimal fire and shock hazards for: (a) Persons aboard the boat; (b) Persons in the water; and (c) Persons who may b

27、e in contact with the boat and any externally grounded object. 3.3.2 The system shall be polarized as defined in Clause 2.1. 3.3.3 The neutral conductor shall be grounded at a single point, i.e., at the on-board generator, at the secondary of the isolating transformer, or through the shore-power con

28、nection. 3.3.4 Grounding conductors of each supply shall be connected to a common point. 3.3.5 Individual circuits shall not be energized by more than one source of electrical power at a time. Each shore-power inlet shall be considered a separate electrical-power supply. Current-carrying conductors

29、of different supply systems shall not be interconnected on board the boat by a common- neutral conductor. 3.3.6 The system shall be constructed so that an on-board ac generator and shore power cannot simultaneously feed the same circuit(s). 3.3.7 Bare live parts of electrical equipment operating at

30、30 V or more shall be guarded against contact by means of suitable enclosures. 3.3.8 The preferred-system voltages shall be 120 V, singlephase, 2wire, or 120 or 240 V, single phase, 3-wire; however, boats for a specific geographic location may be designed for the available nominal-system voltage in

31、that area. 3.3.9 Ground fault circuit interrupters, when provided, shall be of the Class A type. 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 be considered to refer to the latest edition and revision th

32、ereto, 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: C22.1-1982, Canadian Electrical Code, Part I; C22.2 No. 01975, Definitions and General Requirements; C22.2 No. 941976, Spec

33、ial Purpose Enclosures 2, 3, 4, and 5; C22.2 No. 157M1979, Intrinisically Safe and Non-incendive Equipment for Use in Hazardous Locations. 3.4.2 Where reference is made to the following Publication such reference shall be considered to refer to that edition listed below: IEEE* Standard 451977, Recom

34、mended Practice for Electrical Installations on Shipboard. *Tfle Institute of Electrical and Electronics Engineers, Inc. 4. Construction 4.1 General 4.1.1 Electrical-component parts and wiring shall be of types specifically approved for the use intended or shall be investigated with and as an integr

35、al part of the boat. 4.1.2 Panelboards, when supplied, shall be installed in a readily accessible location to serve as a distribution centre, and shall be protected from the weather or splash and be suitably enclosed. 4.2 Mechanical Assembly 4.2.1 All installed equipment shall be secured to prevent

36、damage during movement of the boat. 4.2.2 Insulated-wire connectors having caps that can be removed (e.g., not crimped) shall have an additional means for securing the connector caps in place (i.e., by taping). Twist-on connectors shall not be used. Narch, 1982 AlternatingCurrent (Ac) Electrical Ins

37、tallations on Boats 11 4.3 Overcurrent Protection 4.3.1 Shore-Power Stp1y 4.3.1.1 Overcurrent protection shall be provided f or each shore-power supply. 4.3.L2 The overcurrent protection shall be as close as practicable to the shorepower inlet. 4.3.1.3 The current rating of the shore-power supply ov

38、ercurrent devices on the boat shall not exceed the current rating of the shore-power cable, the shore-power inlet, or the isolating transformer, whichever is smaller. 4.3.1.4 Circuit breakers shall be provided to open simultaneously, both manually and automatically, all shore-power supply current-ca

39、rrying conductors of the system. Fuses shall not be used. 4.3.2 Branch Circuits 4.3.2.1 Branch circuit overcurrent devices shall have a temperature rating and protection charac- teristics consistent with the protected circuit and their location in the boat, i.e., machinery space or other space. 4.3.

40、2.2 A branch circuit overcurrent protective device rating shall not exceed the allowable ainpacity of the wire being protected, except as provided otherwise in the Rules of the Canadian Electrical Code, Part I. 4.3.2.3 Branchcircuit breakers or fuses shall disconnect simultaneously all current-carry

41、ing conductors. However, when a polarity indicator is provided in accordance with Clause 4.5.3, or when an isolating transformer is used in accordance with Clause 4.7.3, branch-circuit breakers or fuses may open only the ungrounded conductors. 4.3.2.4 If circuits contain 2 or more ungrounded current

42、carrying conductors protected by fuses, means shall be provided to disconnect all energized legs of the circuit simultaneously or remove all fuses from the circuit simultaneously. 4.3.3 Circuit breakers shall be of the tripfree and manually resettable type. 4.3.4 On-Board Generators. Overcurrent pro

43、tection shall be provided for each on-board generator. 4.4 Wiring 4.4.1 Conductors, including flexible cords, shall have a minimum rating of 300 V and be of the types specified in Tables 1 and 2. Note: Marine cables, such as those covered by IEEE Standard 45, Recommended Practice f or Electrical Ins

44、tallations on Shipboard, may be acceptable. subject to investigation. 4.4.2 Conductors shall be of stranded copper in accordance with Table 3. 4.4.3 The conductor ampacity shall be according to the Canadian Electrical Code, Part I, and Tables 4 or 5 as applicable. 4.4.4 Conductors, including flexibl

45、e cords, shall have an ampacity of not less than 15 A, except as permitted in the Canadian Electrical Code, Part I, Section 16, Remote-Control Circuits, Signal Circuits, Extra-Low-Voltage Power Circuits, and Low-Energy Power Circuits. 4.4.5 Conductors, including flexible cords, shall have a temperat

46、ure rating of not less than 60C except: (a) In engine spaces, where it shall be at least 75C; (b) In ceiling (overhead) outlet boxes, where it shall be at least 90C; and (c) Near other sources of heat, where it shall be increased accordingly. 4.4.6 Conductors, including flexible cords, used in machi

47、nery spaces shall be resistant to gasoline and oil, and shall be routed away from hot locations. 4.4.7 Conductors with Type 1 stranding shall be used only where the wire is firmly attached to a rigid structure and is not subject to movement or vibration. 4.4.8 Conductors with Type 2 stranding shall

48、be used for wiring that is subject to movement from vibration or minor flexing. If 4 or more conductors are run in a cable, Type 2 stranding may be used for frequent flexing applications. 4.4.9 Conductors with Type 3 stranding shall be used for any wiring where frequent flexing is involved in normal

49、 use. 4.5 Installation 4.5.1 General 4.5.1.1 Flexible cords of the types shown in Table 2 may be used for fixed wiring. Note: Single conductors may be used when a cable assembly of some required rating such as high temperatures is not available. 4.5.1.2 All connections shall be made in enclosures such as junction boxes, fixture enclosures, or panel enclosures. 4.5.1.3 All conductors shall be s