Section 5.7 Special Purpose Personnel Elevators
In jurisdictions not enforcing the NBCC, Section 5.7 applies to elevators permanently installed in a wide variety of structures and locations to provide vertical transportation of authorized personnel and their tools and equipment only. Such elevators are typically installed in structures such as grain elevators, radio antennas and bridge towers, underground facilities, dams, power plants, and similar structures where, by reason of their limited use and the types of construction of the structures served, full compliance with Part 2 is not practicable or necessary.
(b) a lock keyed to Group 1 Security
(a) the bottom car runby (see 18.104.22.168)
(c) 150 mm (6 in.)
Protection of spaces below hoistways not extending to the lowest level of the structure shall conform to the applicable requirements of 2.6.1.
(a) secondary or deflecting sheaves of traction elevators
(b) devices and their accessories for limiting or retarding car speed
(c) driving machines on the car
NOTE (22.214.171.124): The object in doubling the suspended load is to allow for impact, accelerating stresses, etc.
The car safety shall be actuated by a speed governor. The governor shall be operated to set the safety in accordance with Table 126.96.36.199, with the maximum permissible speed allowed being 1.05 m/s (210 ft/min]. The operation of the safety shall conform to 188.8.131.52.
The speed governor shall be located where it cannot be struck by the car or counterweight in case of overtravel and where there is sufficient space for full movement of the governor parts. Governor ropes shall conform to 184.108.40.206 through 220.127.116.11.
(a) for car safeties: 1625 mm (64 in.]
(b) for counterweight safeties: 1980 mm (78 in.]
Only iron (low-carbon steel] or steel wire ropes, having the commercial classification "Elevator Wire Rope," or wire rope specifically constructed for elevator use shall be used for the suspension of elevator cars and for the suspension of counterweights. The wire material for ropes shall be manufactured by the open-hearth or electric furnace process or their equivalent.
The minimum diameter of any suspension rope shall be not less than 9.5 mm (0.375 in.).