Practical Marine Electrical Knowledge: Program 1. Ships Electrical Systems - Safety and Maintenance
This is Program 1 of VIDEOTEL series on Practical Marine Electrical Knowledge.
Designed to assist sea-going personnel in their understanding of the safe operation, testing and maintenance of ships electrical equipment and services. Examines practical electrical maintenance and fault-finding procedures on board various ship types.
The series is made up of 8 programs.
Program 1 introduces a typical 440V AC Marine Electrical System, first aid rescue procedures and test instruments. It also discusses preventive maintenance.
There are many system variations around. So, it's most important that you become familiar with components of the main switchboard immediately you join a ship. Pay particular attention to the layout of emergency switchboard. This study will pay dividends during a blackout or when troubleshooting because of major breakdown.
Ships Electrical Systems - Safety and Maintenance
The Golden Rule is:
Before any work is done on the electrical installation, first, isolate the circuit by removing the supply fuses or locking the circuit-breaker in the open position. So, the circuit can not be energized accidentally. Then, post a warning sign to alert others that the circuit is being worked down. Then prove the circuit dead with voltmeter or approved line tester.
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This video series explains a ship's electrical system, including its generation plant, switchboards and distribution network. Electrical safety and safe working practice is stressed throughout with the significance of circuit faults and the various forms of protective switchgear.
Based on book "Practical Marine Electrical Knowledge" which covers every aspect of a ships electrical systems and includes correct operation, safety, testing, UMS requirements and standards for Classification Society Surveys.
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Timeline of Program 1. Ships Electrical Systems - Safety and Maintenance:
0:00 Intro
0:53 Get familiar with main components when you joined the ship
1:17 Electrical Safety Golden Rule
2:02 International Safety Standards
2:50 Typical Marine Electrical System
3:10 Main components
4:18 Main and auxiliary alternators
4:45 Emergency diesel alternator
5:01 Shore power supply
5:33 Emergency batteries
6:09 Distribution system
6:20 Main switchboard
7:44 Group starters
7:54 Bank of transformers
8:08 24V DC supply - transformer rectifying system
8:15 Emergency power
8:40 Battery charger
8:46 Emergency switchboard
8:56 When the main power fails
9:55 Distribution panels
10:16 Safety. Electricity is dangerous
10:27 Safety Regulations and Procedures
10:33 Essential Rescue Methods relating to electric shock
13:10 Test instruments
14:17 Analog multi-meter
17:17 Digital multi-meter
18:15 Insulation resistance tester
19:20 Line tester
19:53 The electrical plant
20:18 Preventive maintenance
20:25 Electrical Superintendents favors
20:29 Insulation resistance trends and vibration monitoring
20:59 Electrical Permit-to-Work
21:12 Conclusion
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1992 Archive
#marine #electrical knowledge