Article 48 Electrical and Electro-hydraulic steering gear
In every vessel of 12 metres in length and over to which these Rules apply where electrical or electro-hydraulic steering gear is fitted, indicators shall be provided which will show when the power units of such steering gear are in operation. These indicators shall be situated in the machinery control room or other suitable positions and in the wheelhouse.
In every vessel of 45 metres in length and over to which these Rules apply—
electrical and electro-hydraulic steering gear shall be served by two circuits fed from the main switchboard, one of which may pass through an emergency switchboard if one is provided. Each circuit shall have adequate capacity for supplying all the motors which are normally connected to it and which operate simultaneously. Where transfer arrangements are provided in the steering gear room to permit either circuit to supply any motor or combination of motors, the capacity of each circuit shall be adequate for the most severe load condition. The circuits shall be separated as far apart as is reasonably practicable throughout their length;
short circuit protection only shall be provided for such circuits and motors.
In every vessel of 12 metres in length and over to which these Rules apply where electric power is the only source of power for both main and auxiliary steering gear the provisions of paragraph (2) above shall apply except that where auxiliary steering gear is powered by a motor primarily intended for other services suitable overload protection may be fitted.