E-11 AC AND DC ELECTRICAL SYSTEMS ON BOATS - JULY 2008

1 2008 American Boat & Yacht Council, Inc. ABYC E-11 July, 2008 ELECTRICAL Division StandardElectrical Project Technical Committee The ABYC Standards and Technical Information Reports for Small Craft are the product of a consensus of representatives of government, industry and public sectors. It is intended solely as a guide to aid manufacturers and the marine community in the design, construction, equipage and maintenance of small craft. ABYC reviews each standard at least every five years at which time it may be reaffirmed, revised, or withdrawn. ABYC welcomes any written comments on the Standards and Technical Information Reports. ABYC E-11 AC AND DC ELECTRICAL SYSTEMS ON BOATS E-11 7/08 2008 American Boat & Yacht Council, Inc. ELECTRICAL PROJECT TECHNICAL COMMITTEE William Drake, Chairman Richard Blackman Paul Fleury Thomas Marhevko Nigel Calder Charles Game Vinod Mehta Robert Carlson Robert Green Aaron Meyer Pete Chisholm Mark Gropper Paul Michalczyk James Clausen Clyde Head John Page Ben Craig Roger Jarman Dave Potter Wm.

2 Brian Craig Ralph Lambrecht Donald Reed Dennis Dodge Robert Loeser Bruce Slaughter Jim Eichner Keith Lovegren Robert Unger Ward Eshleman Kim MacCartney This list represents the membership at the time the Committee was balloted. NOTE: Membership on a committee shall not in and of itself constitute an endorsement of ABYC or any document developed by the committee on which the member serves. This Standard was developed under procedures accredited as meeting the criteria for American National Standards. The Project Technical Committee that approved the Standard was balanced to ensure that individuals from competent and concerned interests have had an opportunity to participate. This Standard, which is the result of extended and careful consideration of available knowledge and experience on the subject, is intended to provide minimum performance requirements. ABYC s Project Technical Committee meetings are open to the public.

3 All inquiries regarding standards activity, interpretations, or meeting attendance should be directed to the ABYC Technical Department at ABYC and its committees do not approve , certify , or endorse any item, construction, or proprietary device. REQUEST FOR INTERPRETATIONS Upon written request the ELECTRICAL PTC will render an interpretation of any requirement of the Standard. The request for interpretation should be clear and unambiguous. Requests should be presented to the PTC in a manner in which they may be answered in a yes or no fashion. The committee reserves the right to reconsider any interpretation when or if additional information which might affect it becomes available to the PTC. Persons aggrieved by an interpretation may appeal to the Committee for reinterpretation. E-11 7/08 2008 American Boat & Yacht Council, Inc.

4 E-11 AC and DC ELECTRICAL SYSTEMS on BOATS Table of Contents PURPOSE ..1 REFERENCED GENERAL REQUIREMENTS ..5 POWER ISOLATION OF GALVANIC CURRENTS ..13 LOAD OVERCURRENT PROTECTION ..18 GROUND FAULT PROTECTION AC SYSTEMS ..22 SWITCHES ..23 PLUGS AND RECEPTACLES ..23 SYSTEM wiring ..24 APPLIANCES AND DC GROUNDING AND BONDING ..31 APPLICATION OF TYPES OF SHORE POWER INDEX ..73 NOTE: GREY SHADING INDICATES AN AC ONLY REQUIREMENT. LACK OF SHADING INDICATES GENERAL OR DC ONLY REQUIREMENTS. E-11 7/08 1 2008 American Boat & Yacht Council, Inc. E-11 AC and DC ELECTRICAL SYSTEMS ON BOATS Based on ABYC's assessment of the existing technology, and the problems associated with achieving the goals of this standard, ABYC recommends compliance with this standard for all SYSTEMS and associated equipment manufactured and/or installed after July 31, 2009.

5 PURPOSE These standards are guides for the design, construction, and installation of alternating current (AC) ELECTRICAL SYSTEMS on BOATS and of direct current (DC) ELECTRICAL SYSTEMS on BOATS . NOTE: The United States Coast Guard has promulgated mandatory requirements for ELECTRICAL SYSTEMS in Title 33, CFR 183 Subpart I, Section 183. Refer to the CFR for current federal requirements. SCOPE These standards apply: to alternating current (AC) ELECTRICAL SYSTEMS on BOATS operating at frequencies of 50 or 60 hertz and less than 300 volts, including shore powered SYSTEMS up to the point of connection to the shore outlet and including the shore power cable and, to direct current (DC) ELECTRICAL SYSTEMS on BOATS that operate at potentials of 50 volts or less. EXCEPTION: Any conductor that is part of an outboard engine assembly and does not extend beyond the outboard engine manufacturer s supplied cowling.

6 REFERENCED ORGANIZATIONS ABYC - American Boat & Yacht Council, Inc., 613 Third Street, Suite 10, Annapolis, MD 21403. Phone: (410)990-4460, Fax: (410)990-4466. Website: ABYC A-1, Marine Liquefied Petroleum Gas (LPG) SYSTEMS ABYC A-3, Galley Stoves ABYC A-16, Electric Navigation Lights ABYC A-22, Marine Compressed Natural Gas (CNG) SYSTEMS ABYC A-28, Galvanic Isolators ABYC A-31, Battery Chargers and Inverters ABYC E-2, Cathodic Protection ABYC E-10, Storage Batteries ABYC H-2, Ventilation of BOATS Using Gasoline ABYC H-24, Gasoline Fuel SYSTEMS ABYC H-33, Diesel Fuel SYSTEMS ABYC T-5, Safety Signs and Labels ABYC TE-4, Lightning Protection ABYC TH-22, Educational Information About Carbon Monoxide ABYC TH-23, Design, Construction, and Testing of BOATS in Consideration of Carbon Monoxide. E-11 7/08 2 2008 American Boat & Yacht Council, Inc. CFR - Code Of Federal Regulations and other government publications.

7 Obtain from the Superintendent Of Documents, United States Government Information, POB 371 954, Pittsburgh, PA 15250-7954. Phone: (202)512-1800 or Fax: (202)512-2250. Website: An excerpted edition of the CFR is also available from ABYC, Inc. 33 CFR (a) IEC International Electrotechnical Commission, 3, rue de Varembe, PO Box 131, CH 1211 GENEVA 20, Switzerland. Phone: +41 22 919 0211. Fax: +41 22 919 0300. Website: IEC Standard 60529 Type IP67 IEC Standard 60529 Type IP 54. NEMA - National ELECTRICAL Manufacturer's Association, 1300 North 17th St, Suite 1847, Rosslyn, VA 22209. Phone: (703)841-3200, Fax: (703)841-5900. Website: Standard 250, Type 6P Standard 250, Type 3 NFPA - National Fire Protection Association, One Batterymarch Park, Quincy, MA 02269-9101. Phone: (617)770-3000. Fax: (617)770-0700. Website: NFPA 70, The National ELECTRICAL Code SAE - Society of automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.

8 Phone: (724)776-4841. Fax: (724)776-5760. Website: SAE J1171, External Ignition Protection of Marine ELECTRICAL Devices SAE J378, Marine Engine wiring SAE J1127, Battery Cable SAE J1128, Low-Tension Primary Cable USCG - United States Coast Guard, USCG Headquarters, Washington, DC, 25093-0001. Coast Guard Website: UL - Underwriters Laboratories Marine Department, POB 13995, 12 Laboratory Drive, Research Triangle Park, NC 27709. Phone: (919)549-1400. Fax: (919)547-6000. Website: UL 83, Thermoplastic-Insulated Wires and Cables UL 94, Tests For Flammability Of Plastic Materials UL 310, ELECTRICAL Quick-Connect Terminals UL 489, Molded Case Circuit Protectors For Circuit Breaker Enclosures UL 498, Attachment Plugs and Recepticles UL 514A, Metallic Outlet Boxes UL 514B, Nonmetallic Outlet Boxes, Flush Device Boxes, and Covers UL 943, Ground Fault Circuit Interrupters UL 1053, Ground Fault Sensing and Relaying Equipment UL 1059, Terminal Blocks UL 1077, Supplementary Protectors For Use In ELECTRICAL Equipment UL 1426, Cables for BOATS UL 1500, Ignition Protection Test For Marine Products UL 1561, Dry Type General Purpose and Power Transformers DEFINITIONS For the purposes of this standard, the following definitions apply.

9 AC grounded conductor - A current carrying conductor that is intentionally maintained at ground potential. NOTE: This may be referred to as the neutral (white) conductor in AC ELECTRICAL SYSTEMS . E-11 7/08 3 2008 American Boat & Yacht Council, Inc. AC grounding conductor (green or green with a yellow stripe) - A conductor, not normally carrying current, used to connect the metallic non-current carrying parts of AC ELECTRICAL equipment to the AC grounding bus, engine negative terminal or its bus, and to the source ground. NOTE: The source of ELECTRICAL power may be the shore AC power, an inverter, an isolation transformer or a generator.

10 Battery cold cranking performance rating 0oF ( C) - The discharge load in amperes that a battery at 0 F ( C) can deliver for 30 seconds, and maintain a voltage of volts per cell or higher, , volts for a 12 volt battery. Battery reserve capacity - The number of minutes a new fully charged battery at 80 F ( C) can be continuously discharged at 25 amperes, and maintain a voltage of volts or higher per cell, , volts for a 12 volt battery. DC grounded conductor - A current carrying conductor connected to the side of the power source that is intentionally maintained at boat ground potential. DC grounding conductor - A normally non-current carrying conductor used to connect metallic non-current carrying parts of direct current devices to the engine negative terminal, or its bus. Double insulation system - A system comprised of basic insulation and supplementary insulation, with the two insulations physically separated and so arranged that they are not simultaneously subjected to the same deteriorating influences, , temperature, contaminants, to the same degree.