MT 132 - Marine Electrical Systems I

Credits: 4
Variable Credit Course: No

Lecture Hours: 33
Lab Hours: 22
Worksite/Clinical Hours: 0
Other Hours (LIA/Internships): 0

Course Description: Basic AC and DC electrical systems as found on recreational and small commercial vessels. Installation and troubleshooting of engine operation systems for charging and starting, DC house systems for lights, pumps, and multi-state voltage regulation. Includes proper multi-meter use and electrical safety.

Prerequisite: None.
Meets FQE Requirement: No
Integrative Experience Requirement: No

Student Learning Outcomes

Demonstrate an understanding of marine storage batteries by correctly transporting, determining battery condition, and applying industry standards.
Demonstrate safe work best practice when working on alternating current circuits by being aware of shock hazards, proper multi-meter use, and not touching energized wires or terminals.
Use a digital volt/ohm/amp meter to test battery voltage, shore power cords, voltage drop, continuity of a wire run, operation of a switch, fuse, bulb or appliance in a AC or DC electrical system.
Demonstrate understanding of engine operation gauge systems by correctly installing and troubleshooting common gauge circuits.
Install and wire typical vessel DC electrical system components such as batteries, pumps, lights, switches and navigational gear to American Boat and Yacht Council and National Fire Protection Association guidelines and recommended practices.
Troubleshoot & repair DC electrical systems including battery charging, engine alternators, pumps, lights, switches and navigational gear.
PROGRAM OUTCOME: Demonstrate Mechanic & Electrical Skills.

Course Contents

Introduction to electricity, Direct Current, Alternating Current, and methods of electricity production aboard a vessel.
Vessel electrical systems overview, DC systems, AC systems, corrosion control systems, engine monitoring systems.
Engine monitoring systems theory of operation and troubleshooting.
Battery systems installation guidelines.
DC distribution panels, wire sizing, terminations and installations.
AC shore power systems, connections aboard a vessel, distribution systems, galvanic protection methods.
Voltage testing, load testing, and cell density testing, amp/hr testing.
Chemical and shock hazards.
AC circuits.
Digital volt/ohm/amp meters and load tester.
Engine operation gauge systems.
Alternator/voltage regulator DC charging system.
DC electrical system component.
American Boat and Yacht Council and National Fire Protection Association guidelines and recommended practices.
Alternator operation using the 3-step method.

Instructional Units: 4.5