Dear SSM
Working at heights - Definition
Elevated working positions (above 1.8 m or 6 feet) where the hazard of a fall exists and where there is no physical protection such as a platform with guardrails. The typical examples of working at height are: Working from all types of ladders, scaffolds, mechanical lifts, inside confined spaces, sloped roofs, areas where there are no overhead tie-off points.
Safe work platforms - Definition
These platforms are designed in such a way that it provides maximum access space for unclogging and maintenance in safe conditions. Minimum 2100mm headroom clearance should be required above platforms including passages, walkways and all points in stairways. The minimum access width shall be 900mm. Exceptions (restricted width for access dedicated to maintenance purposes) must be approved in writing. All platforms shall be provided with handrails and toe guards. There should not be any floor openings in the platforms, which may have potential of injury to the workers.
Now if there is a safe work platform above any heaight with Safe Access to reach there, no need of fall protection... So height is not an issue... Normally above 1.8 m, fall protection requires, but changes as per situation...
Hope now it's clear to you...
If anyone in the forum have objection to what I stated here, please come forward and put light into the topic, so that we can have a good discussion on the topic...