Mich. Admin. Code R. 408.41105

Current through Vol. 24-19, November 1, 2024

Section R. 408.41105 - Definitions; S to W

Rule 1105.

(1) "Safety feet" means a safety device that is placed on the foot of the side rails of straight, sectional, or extension ladders to reduce the likelihood that the base will slip. Safety feet may be flat pads that are covered with a nonslip material, pointed metal projections, or spur wheels.

(2) "Side-step ladder" means a ladder that requires an employee who is getting off at the top of the ladder to step sideways from the ladder to reach the landing.

(3) "Single-cleat ladder" means a ladder that consists of a pair of parallel side rails that are connected with cleats which are joined to the side rails at regular intervals.

(4) "Single-rail ladder" means a portable ladder that has rungs, cleats, or steps which are mounted on a single rail instead of the normal 2 rails that are used on most other ladders.

(5) "Special-purpose ladder" means a portable ladder that represents either a modification or a combination of design or construction features in 1 or more of the general purpose types of ladders, as defined in R 408.41103(5) and (6), R 408.41104(5) and (6), and subrules (4) and (6) of this rule, in order to adapt the ladder to special or specific uses.

(6) "Stepladder" means a self-supporting portable ladder that is nonadjustable in length and that has flat steps and a hinged back. A stepladder's size is measured along the front edge of the side rails.

(7) "Steps" means the flat crosspieces of a ladder on which a person may step to ascend or descend.

(8) "Through ladder" means a ladder that requires an employee who is getting off at the top of the ladder to step through the ladder to reach the landing.

(9) "Trestle ladder" means a self-supporting portable ladder which is nonadjustable in length and which consists of 2 sections that are hinged at the top to form equal angles with the base. The size of the ladder is designated by the length of the side rails measured along the front edge.

(10) "Well" means a permanent complete enclosure around a fixed ladder that protects a climber. Proper clearance for a well will give the same protection as a cage.

(11) "Worn" means a reduction of the dimension of a wood or non-wood part by more than 10% of its original size.

Mich. Admin. Code R. 408.41105

1979 AC; 1990 AACS; 1993 AACS; 2014 AACS