School of Architecture & the Built Environment
Building Services 2
BE0611
Tutorial 7: Lift Installation
Part A
SS 550 (2009)
Code of Practice for Installation, operation and maintenance of electric passenger
& goods lift
covers the design, construction, installation, testing, inspection, operation and
maintenance of permanently installed electric lifts.
With reference to the above Code of Practice, answer the following questions :
1.
2.
Describe the function of the following (hint page 10 & 12 of SS550):
(a) automatic rescue device.
(b) designated floor.
(5 marks)
(5 marks)
Reference to clause 3.2.1, on which storeys (or floors) should emergency access doors
be located for the lift installation shown in Fig. 1?
(20 marks)
7th storey
4m
4m
4m
6th storey
5th storey
4th storey
4m
3rd storey
4m
2nd storey
4.5m
1st storey
Fig. 1
Section view - Low rise zone’s lift installation for a building with 3 lift cars.
Shaded area indicates the storeys where the lift cars will stop.
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3.
Lift cars shall be provided with ventilation fans. Calculate the ventilation air volume
required (per hour) for a lift car measuring 1.25m x 1.40m x 2.30m (high).
(hint page 28)
(15 marks)
4.
List two information that must be shown on the capacity plate displayed inside a lift
car. (hint page 30)
(15 marks)
5.
Determine the clear platform area for the following lift cars: (hint page 31)
(a) Number of person = 8
(5 marks)
(b) Rated load = 750 kg
(5 marks)
Part B
For this part students are to refer to photos of the the lift motor room. Figure 2 is the floor
plan of the motor room
6.
With reference to the photos draw and label following equipment onto the floor plan of
the motor room (Use rectangular text boxes)
(30 marks)
Lift motor
Overspeed governor
Lift Controller
ARD
EBOP
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Door opening
Figure 2: Floor Plan of Lift Motor Room
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