§ 45.32. Floor openings.
(a) All floor openings, except those located under machines or in the carriage runway, shall comply with Chapter 47, Subchapter G (relating to railings, toeboards, open-sided floors, platforms, and runways). Floor openings used for refuse removal may be provided with wooden covers which shall always be in place when the openings are not in use. The wooden covers may be supported by posts in a raised position above the flood openings they protect.
(b) If located at or about floor level, the troughs in which the working strands of a conveyor operate shall be provided with toeboards 6 inches in height. If the depth of the trough is over 18 inches or the width is over 2 feet, regardless of depth, it shall, in addition, be provided with a standard railing.
(c) When the working strand of a conveyor crosses at or about the floor level in passageways, the trough in which it works shall be bridged the full width of the passageway.
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