In steel erection, at what height are workers generally required to be protected from fall hazards?

Giải thích

The steel erection standard sets the general fall protection height at 15 feet, and carves two narrower rules inside it. Connectors must be protected at heights over two storeys or 30 feet, whichever is less, and between 15 and 30 feet may choose between conventional fall protection and a controlled decking zone. Work within a controlled decking zone is exempt from conventional protection where the zone's boundaries, access limits and training are met. That is what makes 30 feet the most attractive wrong answer: it is a genuine number in the same standard, attached to connectors rather than to the general rule. Six feet is the general construction trigger and 10 feet is the supported scaffold trigger.