A vessel equipped to load and discharge by its own means (derricks or cranes).

Electro-pneumatic system – This system involves blowing air down the pipe to the liquid in the tank and measuring the pressure needed to force the liquid out of the pipe.

A condition under which any services needed for normal operational and habitable conditions are not in working order due to failure of the main source of electrical power, (acc. to SOLAS, Chapter II-1, Part A).

A safety mechanism to arrest the cable in the event of a catastrophic failure or danger to personnel, when the cable must be stopped immediately.

Refers to any time that crew boards the ship, like initial boarding or boarding in a port of call.

The ladder provided at survival craft embarkation stations to permit access to survival craft after launching.

Vertical transportation facilities, passenger lifts, service/crew elevators.

A welding process that produces coalescence of metals with molten slag that melts the filler metal and the surface of the workpieces. The weld pool is shielded by this slag which moves along the full cross section of the joints as welding progresses.

Vector charts made up of layers which can be displayed selectively. Each point on the chart is digitally mapped, allowing information to be used in a more detailed way, such as clicking on a feature to display its information.

The newly developed navigational tool using digital charts (vectorised and raster charts) for navigational tasks normally carried out with paper charts. The equipment must be type-approved and uses up-to-date official charts.

An arc welding process that uses an arc between a continuous filler metal electrode and the weld pool, employing approximately vertical welding progression with backing to confine the molten weld metal.

The method of surface preparation which can be used for ballast tanks before drydocking. It bases on a breakdown of the rust using very strong electrical current.

The concept of electric propulsion is over 100 years old with battery-powered vessels recorded in Russia and Germany around 1870. In 1893, one of the first electric boats ELECTRICITY carried passengers on the River Thames in England.

Azymuthing electric propulsion unit with the motor located inside the underwater housing (pod) attached to the hull.

A system in which the neutral is connected to the ship hull in normal operation.

The electric motor converts electrical energy to mechanical energy. The most frequently used type of electric motor is the motor powered by an alternating current supply: the AC-motor.

All equipment and installations connected at the same rated voltage. - Isolated electric network – A system in which a conductor or the neutral is not connected to the ship hull in normal operation.

The structural member capability of sustaining stress without permanent deformation, i.e. to recover its original size and shape after the stress has been removed.

The maximum stress that can be applied to a metal without plastic deformation.

A pump that has no moving parts or a mechanical driver. The pumping action is created as a pressurized fluid, referred to as the motive or operating fluid supplied from an external source, passes through the ejector.