R 408.10508 Definitions; T to W.

Rule 508. (1) “Tail line” means the non-supporting end of the wire rope used to suspend the platform. (2) "Tie-in guides" means the portion of a building that provides continuous positive engagement between the building and a suspended or supported unit during its vertical travel on the face of the building. (3) “Traction hoist” means a type of hoisting machine that does not accumulate the suspension wire rope on the hoisting drum or sheave, and is designed to raise and lower a suspended load by the application of friction forces between the suspension wire rope and the drum or sheave. (4) “Transportable outriggers” means outriggers designed to be moved from 1 work location to another. (5) “Trolley carriage” means a carriage suspended from an overhead track structure. (6) “Verified” means accepted by design, evaluation, or inspection by a registered professional engineer. (7) “Weatherproof” means so constructed that exposure to adverse weather conditions will not affect or interfere with the proper use or functions of the equipment or component. (8) “Winding drum hoist” means a type of hoisting machine that accumulates the suspension wire rope on the hoisting drum. (9) "Working platform" means suspended or supported equipment intended to provide access to the face of a building and manned by persons engaged in building maintenance. (10) “Wrap” means 1 complete turn of the suspension wire rope around the surface of a hoist drum.