184.108.40.206 Control Rooms
(b) be enclosed with noncombustible material to a height not less than 2000 mm (79 in.) where the building code does not require fire-resistive construction of the control room. The enclosure, if of openwork material, shall reject a ball 50 mm (2 in.) in diameter.
(d) have clear headroom of not less than 2130 mm (84 in.).
(e) be provided with natural or mechanical means to keep the ambient air temperature and humidity in the range specified by the elevator equipment manufacturer.
(f) be provided with permanent lighting providing minimum illumination of 200 lx (19 fc) at the floor level. The lighting control switch shall be located within easy reach of the access door.
(g) be provided with an access door having a minimum width of 750 mm (29.5 in.) and a minimum height of 2030 mm (80 in.). The door shall be self-closing and self-locking, provided with a spring-type lock arranged to permit the door to be opened from the inside without a key, and kept closed and locked.