Final answer:
Perimeter safety cables, often required by OSHA, are critical for fall prevention in construction or industrial settings and their installation depends on the specific safety regulations and job site requirements.
Step-by-step explanation:
The statement that perimeter safety cables of 1/2 inch wire rope must be installed could be considered true in the context of specific occupational safety and health regulations, particularly in construction or industrial settings where fall protection is critical. The Occupational Safety and Health Administration (OSHA) provides guidelines that often specify the use of safety systems to protect workers from fall hazards. Such cables, often part of a guardrail system, are critical for ensuring the safety of workers operating at height by providing a barrier to prevent falls. The installation of safety cables may depend on the specific job site and the type of work being performed, as well as the height at which workers will be operating. It is essential to consult with local safety regulations and job site safety requirements to determine the exact specifications necessary for perimeter safety systems, including the diameter of the wire rope.