When both car and hoistway door are of the power type, what type must they be?

When both the car and hoistway door are classified as power type, they function using mechanical systems that enable their opening and closing through hydraulic or electric power. The design choice for these doors is largely influenced by safety, efficiency, and space constraints.

Horizontal sliding or vertical sliding doors are commonly used in various types of elevators because they efficiently fit into the typical architectural designs. They can be powered by motors and are suitable for heavy use, ensuring that they can open and close reliably under regular operation conditions.

Horizontal sliding doors typically move parallel to the building structure, which can be beneficial in situations where space is limited, while vertical sliding doors operate in a manner that permits an elevator cabin to efficiently align with the landing. Both types effectively provide accessibility and safety within the elevator system.

Other options contain door types that may not align with the requirements for power operators or may not be standard for typical elevator systems, leading to a preference for the horizontal sliding or vertical sliding options in power type configurations. These configurations are recognized for their compatibility with safety codes and operational protocols in elevator systems.