[F17 Additional requirements for electric and electro-hydraulic steering gear (R 30) U.K.
NEW CLASS B, C AND D AND EXISTING CLASS B SHIPS: U.K.
.1 Means for indicating that the motors of electric and electro-hydraulic steering gears are running shall be installed on the navigating bridge and at a suitable main machinery control position. U.K.
NEW CLASS B, C AND D SHIPS: U.K.
.2 Each electric or electro-hydraulic steering system comprising one or more power units shall be served by at least two exclusive circuits fed directly from the main switchboard; however, one of the circuits may be supplied through the emergency switchboard. An auxiliary electric or electro-hydraulic steering system associated with a main electric or electro-hydraulic steering system may be connected to one of the circuits supplying this main steering system. The circuits supplying an electric or electro-hydraulic steering system shall have adequate rating for supplying all motors which can be simultaneously connected to them and may be required to operate simultaneously. U.K.
NEW CLASS B, C AND D AND EXISTING CLASS B SHIPS: U.K.
.3 Short circuit protection and an overload alarm shall be provided for steering gear electric and electro-hydraulic circuits and motors. Protection against excess current, including starting current, if provided, shall be for not less than twice the full load current of the motor or circuit so protected, and shall be arranged to permit the passage of the appropriate starting currents. U.K.
NEW CLASS B, C AND D SHIPS: U.K.
The alarms required in this paragraph shall be both audible and visual and shall be situated in a conspicuous position in the main machinery space or control room from which the main machinery is normally controlled and as may be required by Regulation 6 of Part E of this chapter.