Elevator with a safety arrangement and method for creating a safe working space in the upper part of the elevator shaft

An elevator with a safety arrangement for creating a safe working space in an upper part of an elevator shaft, the elevator comprising:

• an elevator car configured to move in the elevator shaft along a plurality of guide rails;
• a counterweight connected to the elevator car;
• an instance of hoisting machinery in the upper part of the elevator shaft, the instance of hoisting machinery including a plurality of operating brakes;
• and
• an elevator control system configured to
• monitor a position of the elevator car in the elevator shaft in relation to a plurality of safety levels in the elevator shaft, each safety level associated with a separate clearance of the elevator car from a ceiling of the elevator shaft, and
• control the elevator, based on the elevator being in an inspection mode or maintenance mode, to create a safety space zone at the upper part of the elevator shaft, the controlling including performing progressively strengthening safety operations in response to the elevator car progressively moving upwards through separate triggering limits of separate clearances associated with separate safety levels of the plurality of safety levels, the performing progressively strengthening safety operations including
• performing a first safety operation to activate an alarm device to prompt manual stopping of the elevator car in response to a determination that the elevator car has moved upwards through a first triggering limit at a lower edge of a first clearance of the elevator car from the ceiling of the elevator shaft, the first clearance associated with a first safety level of the plurality of safety levels, and
• performing a second safety operation to activate a braking system that is configured to arrest upwards movement of the elevator car through the elevator shaft in response to a determination that the elevator car has moved upwards through a second triggering limit at a lower edge of a second clearance of the elevator car from the ceiling of the elevator shaft, the second clearance associated with a second safety level of the plurality of safety levels,
• wherein a magnitude of the first clearance is greater than a magnitude of the second clearance.