Sec.19-411-C17. Guide rail and guide rail fastening

(a) Material. Platform guide rails shall be of metal construction. Steel construction shall conform to the requirements of Rule 200.2a (American National Standard Institute A-17-1-78). Metal other than steel shall conform to the requirements of Rule 200.2b (American National Standard Institute A-17-1-1978).

(b) Extension of guide rails. The top and bottom of each run of guide rails shall be so located in relation to the extreme positions of travel of the car that the car guiding members cannot travel beyond the ends of the guide rails.

(c) Guiding mechanism enclosures. The guiding mechanism shall be enclosed with a solid enclosure to prevent accidental contact. If openings are necessary in this enclosure for operation, they must reject a ban three-fourths (¾) inch in diameter.

(d) Fastening, deflection and joints. Fastening, deflections, and joints shall conform to the requirement set forth in Rule 705.4 (American National Standard Institute A-17-1-1978).

(Effective October 28, 1980)