Electronic diodes, and other semi-conductor devices with p-n junctions (e.g. the base-emitter of a transistor) can be tested using a digital type instrument using the following pro... Read more
Ideally insulation resistance measurement on ship electrical machine is while the machine is hot? Insulation becomes more leaky (its IR value falls) at high temperatures. So testin... Read more
Anyone who has access to live electrical equipment must be fully aware of first-aid and safety procedures related to electric shock as described in relevant safety acts. Copies of... Read more
Ships’ staff must operate equipment in a safe manner and maintain it in a safe condition at all times. Failure to do so will cause danger with serious consequences arising. K... Read more
An overview of a ship’s electrical system is presented and describes various types of circuit diagrams used in electrical work. Electrical calculations, safety precautions, c... Read more
Circuit breakers require careful inspection and cleaning at least once a year. Before working on circuit breakers, check the applicable technical manual carefully. Before working o... Read more
Embossed metal tags are used to identify cables throughout the vessel. The tags are located at the distribution panel and the component. Tags are also attached to the cables where... Read more
Color coding allows the Electrical engineer ETO to follow electrical circuits throughout a vessel without having to physically touch each cable. The color can be continuous through... Read more
If a fault occurs on a generator stator or its associated cables, the tripping of the generator circuit breaker alone is not sufficient Although the machine will be isolated from t... Read more
For each generator circuit breaker must be fitted with an overcurrent relay. On medium-voltage systems this is often an integral part of the circuit breaker, in In the form of dire... Read more
