Section 3 Control and supervision of lifts for passengers and crew

3.1.1 Alarms and safeguards are indicated in Ch 10, 3.2 Alarms and safeguards. Alternative arrangements which provide equivalent safeguards will be considered.

3.1.2 Control engineering equipment is to be capable of satisfactory operation when subject to a pitch or roll of 10° when lifting appliances are in operation. When lifting appliances are stopped, control engineering equipment is to withstand an inclination of 22,5° irrespective of location.

3.2.1 Means are to be provided to ensure safe and effective control of speed, direction and stopping of the lift car.

3.2.2 Interlocks are to be provided to prevent activation of the lift when:

1. Car doors or parts thereof are not closed; or

2. Shaft access doors or parts thereof are not closed.

3.2.3 Power-operated entrances are to be fitted with protective devices to prevent injury to passengers and crew.

3.2.4 In addition to the normal upper and lower landing stop controls, independent means are to be provided to stop the lift in the event of top or bottom overrun.

3.2.5 Lifts for passenger ships are to be provided with emergency arrangements to bring the lift cars to deck level for the escape of persons, in the event of a main power failure. The passenger lift cars may be brought to deck level sequentially in an emergency.

3.2.6 A safety device is to be fitted on the lift car and any counterweight to stop and hold their positions in the event of overspeed or failure of suspension ropes or their fastenings.

3.2.7 A safety device is to be fitted which will stop and hold the position of the lift car and any counterweight in the event of slack suspension ropes.

3.2.8 Means are to be provided to prevent the lift from being operated when the emergency escape hatch is open. The hatch is to be fitted with a key switch or equivalent to prevent accidental closure reactivating the control system.

3.2.9 Means are to be provided to prevent the lift from being operated in the event of an overload in the lift car. An overload is considered to occur when the rated load is exceeded by 10 per cent with a minimum of 75 kg.

3.2.10 In the event of an overload:

1. Users shall be informed by an audible and/or visual signal in the car;

2. Automatic power-operated doors shall be brought into the fully open position;

3. Manually operated doors shall remain unlocked.

3.2.11 The lift car is to be provided with an alarm, or telephone, or equivalent means of communication.

3.2.12 A landing indicator is to be provided within the car and outside each entrance.

3.2.13 Means are to be provided to enable the lift car to be raised or lowered manually in the event of power failure. The direction of the lift car travel is to be clearly indicated at the manual control position.

3.2.14 Emergency lighting is to be provided in the lift car, lift motor room, trunk access points and lift trunk. This emergency lighting is to be switched on automatically if the normal supply of electric power fails.