Electrical Systems - Typical Wiring Diagrams
DIAGRAM 1 - Auxiliary Sailboat
DIAGRAM 2 - Inboard and Sterndrive Runabout
DIAGRAM 3 - Instrument Wiring
DIAGRAM 4 – Harness
DIAGRAM 5 - Cruiser - Wiring - Less Than 50 Volts
DIAGRAM 6 - Cruiser - Wiring - 50 Volts or More
Electrical Systems - Figures and Tables
FIGURE 1 - Applicability
FIGURE 2 - Conductor Gauge
TABLE 1 - Conductors
FIGURE 3 - Isolation of Electrical Components
FIGURE 4 - Isolation of Electrical Components
FIGURE 5 - Isolation of Electrical Components
FIGURE 6 - Isolation of Electrical Components
FIGURE 7 - Isolation of Electrical Components
FIGURE 8a - Isolation of Electrical Components
FIGURE 8b - Isolation of Electrical Components
FIGURE 8c - Isolation of Electrical Components
FIGURE 9 - Isolation Bulkhead Requirements
FIGURE 10 - Bulkheads
FIGURE 11 - Cranking Motor Circuits
FIGURE 12 - Battery Restraint Test
FIGURE 13 - Installation in a Battery Box
FIGURE 14 - Ungrounded Battery Terminal Connection
FIGURE 15 - Dielectric Shielding Envelope
FIGURE 16 - Battery Location vs. Fuel System
FIGURE 17 - Battery Terminal Connections
FIGURE 18 - Insulated, Stranded Copper Conductor
TABLE 5 - Allowable Amperage of Conductors
TABLE 5A - No More Than 2 Conductors Are Bundled For 50 Volts and Over
TABLE 5B - 3 Conductors Are Bundled
TABLE 5C - 4 to 6 Conductors Are Bundled
TABLE 5D - 7 to 24 Conductors Are Bundled
TABLE 5E - 25 Or More Conductors Are Bundled
FIGURE 19 - Permitted Conductor Size
TABLE 6 - Flexible Cords and Cables (from Article 400, NEC)
FIGURE 20 - Ignition Conductor Connections
FIGURE 21 - Abrasion Protection
FIGURE 22 - Terminal Protection
FIGURE 23 - Overcurrent Protection
FIGURE 23 - Overcurrent Protection (Continued)
FIGURE 24 - Overcurrent Protection Exceptions
FIGURE 25 - Location of Overcurrent Protection
FIGURE 25 - Location of Overcurrent Protection (Continued)
FIGURE 26 - Voltage Rating of Overcurrent Protection
FIGURE 27 - Alternators and Generators
FIGURE 27 - Alternators and Generators (Continued)
Electrical Systems - Appendix - References and Resources
The following standards are referenced in this regulation:
| IEEE 45 |
"Electric Installations on Shipboard". Applies to section 183.435. |
| SAE J378 |
"Marine Engine Wiring". Within SAE J378, reference is made to ASTM D573, "Test for Rubber Deterioration in an Air Oven". Applies to section 183.420. |
| SAE J1127 |
"Battery Cable". Applies to 183.430. |
| SAE J1128 |
"Low Tension Primary Cable". Applies to section 183.440. |
The following standards are referenced in this compliance guideline:
| SAE J1171 |
"External Ignition Protection of Marine Electrical Devices". Applies to section 183.410. |
| SAE J1191 |
"High Tension Cable Assemblies". Applies to section 183.440. |
| UL 1426 |
"Cables for Boats". |
| UL 1500 |
"Standard Test Procedure for Ignition Protection". |
SAE standards are available from the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096, (412) 776-4841.
UL (Underwriter Laboratories) standards are available from COMM 2000, Inc., 1414 Brook Drive, Downers Grove, IL 60515, (888) 853-3503.
U.S. Coast Guard regulations are available from the U.S. Government Printing Office, Superintendent of Documents, Washington, DC 20402-9328.
Ieee45 standards are available from Institute of Electrical and Electronic Engineers:
1828 L. Street, N.W. Suite 1202, Washington D.C. 20036. Or call 1-800-678-4333.
NFPA standards for the "NEC"(National Electrical Code) are available from the National Fire Protection Association.
Battery March Park, P.O. Box 9101, Quincy, MA 02269. Or call 1-800-344-3555
Previous | Next