Table 2: Smallest dimensions of lift cabin
Position of
door
Clearance width
of door (mm)
Width in the
interior of lift cabin
(mm)
Depth from rear
wall to front wall
(mm)
In the middle 900 2100 1300
On the side 900 1800 1300
Random 900 1400 2100
900 1500 1500
Fig 25: Regulations on distance between lift and staircase
Fig 26: Dimensions of lift cabin
5.7.5. Area of waiting space before entering the lift must not be less than 1,500
mm × 1,500 mm.
5.7.6. The lift door is equipped with automatic closing, opening device. Time
duration for door closing/ opening must be over 20 seconds.
5.7.7. The control switchboard in lift cabin is installed at an elevation not more
than 1,200 mm and not less than 900 mm from the cabin floor to the
center of highest control button. On control buttons there must be symbols
or tactile signals and Braille raised dots for blind people. Symbols and
Braille raised dots are shown in fig 27.
Note: The system of lift control includes emergency control button, alarm
whistles, fire alarm warners arranged in a group under the control
switchboard.
Fig 27: Symbols and signals on the access to lift reserved to blind people
Fig 28: Elevation for installing
control apparatuses
5.7.8. Control buttons in front of lift cabin door are installed at an elevation not
over 1,200mm and not less than 900mm from the floor surface. This
elevation is counted from the center of control buttons (see fig 28).
Control buttons are arranged in the side - wall face, at 300mm ÷ 500mm
from the adjacent wall.
5.7.9. Raised symbols and Braille dots are put in the left of buttons they
represent. Specification to identify these symbols and raised dots are
stipulated in table 3.
5.7.10. In the lift cabin, it is necessary to install sound signals and visible figures
for identifying position of floor the lift will reach.
Table 3: Symbols of lift control buttons
Sound signals will emit once in ascending direction and twice in
descending direction, or there will be announcement by words
emphasizing “up” or “down”.
Sound signals shall have a maximum frequency of 1500Hz. Word
announcement shall have a maximum sound intensity of 10dBA but not
exceed 80 dBA as measured at call button in the hall; it shall
automatically announce the number of floor where the lift stops.
5.7.11. The lighting intensity at control board, floor surface, door sill, waiting
space before entering the lift must not be less than 60 lux.
5.8. Emergency escaping way.
5.8.1. In the residence, it is absolutely necessary to arrange emergency escaping
way for PWD when accident occurs. On the escaping way, it must be path
reserved to PWD at the same elevation, and by the end of escaping way, it
must be a staircase.
5.8.2. Width of escaping way must be 900mm ÷ 1,200mm. At crowded area, it
must be 1,800mm. On escaping way, there must not be change of
elevation. Where automatic door or magnetic ticket are used, these door
must be automatically opened when a fire occurs.
5.8.3. Lighting intensity on escaping way must ensure 0,1 ÷ 0,2 lux. At entry/
exit door and up/ down step, lighting intensity has to be ensured too.
5.9. Doors
5.9.1. Doors in residence being designed for PWD’s use must not cause
dangerous obstruction, must be easily closed and opened, and be arranged
for convenient and safe circulation.
Sound signals will emit once in ascending direction and twice in
descending direction, or there will be announcement by words
emphasizing “up” or “down”.
Sound signals shall have a maximum frequency of 1500Hz. Word
announcement shall have a maximum sound intensity of 10dBA but not
exceed 80 dBA as measured at call button in the hall; it shall
automatically announce the number of floor where the lift stops.
5.7.11. The lighting intensity at control board, floor surface, door sill, waiting
space before entering the lift must not be less than 60 lux.
5.8. Emergency escaping way.
5.8.1. In the residence, it is absolutely necessary to arrange emergency escaping
way for PWD when accident occurs. On the escaping way, it must be path
reserved to PWD at the same elevation, and by the end of escaping way, it
must be a staircase.
5.8.2. Width of escaping way must be 900mm ÷ 1,200mm. At crowded area, it
must be 1,800mm. On escaping way, there must not be change of
elevation. Where automatic door or magnetic ticket are used, these door
must be automatically opened when a fire occurs.
5.8.3. Lighting intensity on escaping way must ensure 0,1 ÷ 0,2 lux. At entry/
exit door and up/ down step, lighting intensity has to be ensured too.
5.9. Doors
5.9.1. Doors in residence being designed for PWD’s use must not cause
dangerous obstruction, must be easily closed and opened, and be arranged
for convenient and safe circulation.5.9.2. In door and out door floor
surface must be on the same elevation. If there is difference in elevation
of out-door and in-door floor surfaces, it is necessary to design sloping
way at the door itself.
5.9.3. Inside and outside of doors, there must be a clearance space with
dimensions of 1,500mm × 1,500mm.
5.9.4. Where the door way comprises two layers of door, behind each layer there
must be a clearance space not less than 1,200mm.
5.9.5. Priority is given to the use of double - action door. Where conditions
permit it, there is possibility to use self - closing/ opening door, sliding
door, revolving door instead of hand - operating door. It is not practicable