(全英文版)建筑施工高空坠落防护FallProtection.ppt

OSHA Office of Training Education When Fall Protection is Needed Walkways ramps Open sides edges Holes Concrete forms rebar Excavations Roofs Wall openings Bricklaying Residential Construction Good Work Practices Perform work at ground level if possible Example: building prefab roofs on the ground and lifting into place with a crane Tether or restrain workers so they cant reach the edge Designate and use safety monitors (This is less desirable of all the systems) Use conventional fall protection Summary If you can fall more than 6 feet, you must be protected Use fall protection on: walkways ramps, open sides edges, holes, concrete forms rebar, excavations, roofs, wall openings, bricklaying, residential construction Protective measures include guardrails, covers, safety nets, and Personal Fall Arrest Systems Reference 1926.502(c) How do safety net systems protect me? Safety net systems catch the employee if he/she does fall. The safety nets: Must be strong enough to support a falling employee; Must have sufficiently small mesh openings so the employee cannot fall through the net; Must be close enough to the surface of the walking/working surface so that the fall into the safety net will not still injure the employee (never more than 30 feet below the walking/working level); Must be close enough to the edge of the working surface (the outer edge of the net between 8-13 feet from the edge of the walking/working surface, depending on the distance to the walking/working surface) so that the falling employee will not slip past the net. Where should I expect fall protection to be provided? When an employee is on a walking/working surface that has an unprotected edge. When an employee is constructing a leading edge. When an employee may fall through a hole in the walking/working surface. When an employee is working on the face of formwork or reinforcing steel. When employees are on ramps, runways and other walkways. When em