Under what circumstances can an awl, ratchet, or chisel point safety be used?

An awl, ratchet, or chisel point safety is not permitted for use in elevator systems, primarily due to safety regulations and standards that aim to ensure the reliability and effectiveness of safety mechanisms in elevators. These types of safety devices are typically not designed to function in a way that reliably prevents elevator movement in the event of a failure, which is a critical requirement for safety systems in this context.

Elevator systems are required to use safety devices that are thoroughly tested and proven to work under various conditions to prevent accidents. The use of alternatives like awls or chisels does not meet the stringent safety requirements outlined in codes and standards set by regulatory bodies. Thus, the choice of "never" captures the essence of these safety regulations, underscoring that such devices should not be used in any situation regarding elevator safety. This ensures that all elevators are equipped with reliable mechanisms that prioritize the safety of passengers and operators.