If not then they need to anchor to the structure itself with something rated for that 5,000 lbs. If they cannot or choose not to build one and it is not part of the system, then they can only tie off to thr scaffold if the manufacturer specifically indicates that it has been engineered for anchorage, and only if they follow the manufacturer's guidelines for how to use it for anchorage. If they build one, they have to be able to demonstrate that it can withstand 200 pounds of force against the toprail, 150 midrail, and 50 lbs toeboard. If it doesn't, they can potentially add it, unless indicated otherwise by the scaffold manufacturer. If they're working above a certain height, the scaffold needs to have guardrail. So if it's a freestanding scaffold that's not getting attached to a building, 4:1 is the max. So if you have a 10-foot wide scaffold, the tallest you can build it is 40 feet before you have to secure it to the building to prevent tipping. There are a few exceptions but they're not applicable here.Ī scaffold cannot exceed 4:1 base:height without requiring structural support. And 2) If you were to tie off to a freestanding scaffold, it's not necessarily engineered to withstand that force anyway, so you're just creating a risk for everyone on it.įor all intents & purposes, no fall arrest/protection is required when using a ladder. The whole point of the harness is for situations where you can't provide guardrail. Scaffold has guardrail and therefore doesn't require fall arrest systems. You don't use fall arrest on a scaffold for several reasons: 1) You're required to have either fall arrest (like a harness and retractable lifeline) OR fall restraint (handrail/guardrail). A typical human entering freefall creates around 5,000 lbs of force on whatever they're attached to.
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