Download Elevator Codes PDF

TitleElevator Codes
File Size734.2 KB
Total Pages19
Table of Contents
                            Building Escalators E(1108)
CoP Lifts & Escalators 2011(clear copy)(1.12.2011)
	CODE OF PRACTICEFORTHE DESIGN AND CONSTRUCTION OF BUILDINGSAND BUILDING WORKSFORTHE INSTALLATION AND SAFE USE OF LIFTS AND ESCALATORS
	2011
	BUILDING AUTHORITYHONG KONG
		General
		Scope
		Definitions
		Application to service lifts
		Dimensions for lift installations
		Minimum dimensions for lift installations
		Modifications from the minimum dimensions for lift installations
		Machine-room-less lift installations
		Lifts
		Liftwell enclosure
		Liftwell inspection and emergency doors and inspection traps
		Ventilation of a liftwell
		Walls, floor and ceiling of a liftwell
		Construction of the walls of liftwells facing a car entrance
		Protection of any space located below a car or a counterweight
		Well containing cars and counterweights belonging to several lifts or service lifts
		Lift pit
		Exclusive use of a liftwell
		Outside of a liftwell
		Machine and pulley rooms
		Machine and pulley room access
		Structural strength and floor surface of machine and pulley rooms
		Dimensions of machine and pulley rooms
		Doors and trap doors to machine and pulley rooms
		Other openings in machine and pulley rooms
		Handling of equipment in machine rooms
		Service Lifts
		Liftwell enclosure
		Liftwell inspection doors and inspection traps
		Ventilation of a liftwell
		Walls, floor and ceiling of a liftwell
		Construction of walls of liftwells facing a car entrance
		Protection of any space located below a car or a counterweight
		Well containing cars and counterweights belonging to several lifts or service lifts
		Lift pit
		Exclusive use of a liftwell
		Outside of a liftwell
		Machine rooms and enclosures
		Escalators
		Machine rooms and driving and return stations
		Steps and landings
		Obstructions
		Sample of general note to be provided on general building plans
                        
Document Text Contents
Page 9

3.2.3 Emergency doors shall have a minimum height of 1.8 m and a minimum width of 500 mm.
In addition the emergency doors shall –


(a) be located in a position readily accessible to rescuers; and


(c) bear on its outside face a notice in English and Chinese in letters and characters not less
than 25 mm high as follows –


DANGER

UNAUTHORIZED ACCESS PROHIBITED
LIFTWELL RESCUE DOOR

CLOSE AND LOCK THIS DOOR







3.2.4 Inspection traps shall have a maximum height of 500 mm and a maximum width of 500 mm.

3.2.5 When the distance between consecutive landing doorsills exceeds 11 m, intermediate

emergency doors shall be provided, such that the distance between sills is not more than 11 m.

3.2.6 Inspection and emergency doors and inspection traps shall be imperforate and shall not open

towards the interior of the well.

3.2.7 Inspection doors, emergency doors and inspection traps shall be provided with a key-operated

lock, capable of being reclosed and relocked without a key.

3.2.8 Inspection and emergency doors shall be capable of being opened from inside the well without

a key even when locked.

3.3 Ventilation of a liftwell

3.3.1 A well shall be suitably ventilated. It shall not be used to provide ventilation of rooms other

than those for the service of lifts.

3.3.2 Openings shall be made at the top of a well, with a minimum area of 1% of the area of the

horizontal cross section of the well, ventilating to the open air either directly or via ducting or
the machine or pulley room, provided that in no case the ventilation openings shall be less than
0.15 m2 net free area.


3.4 Walls, floor and ceiling of a liftwell

3.4.1 The structure of a well shall be able to support at least the loads which may be applied by the

machine, by the guides at the moment of safety gear operation, or in the case of off-centering
of the load in a car, by the action of buffers, or those which may be applied by an anti-rebound
device.


3.4.2 In the case of hydraulic lifts the structure of a well shall be able to support at least the loads

which may be applied –

(a) by the machine, the jacks and guides;


- 5 -

Page 10

(b) by the buffers, any safety gear, clamping device or pawl device, at the moment of
application; and


(c) due to off-centering of loads in the car.

3.4.3 The walls, floor and ceiling of a well shall be constructed of non-combustible and durable

materials which do not assist the creation of dust and shall have sufficient structural strength.

3.4.4 The inner surface of all walls shall form a continuous vertical surface composed of smooth and

hard elements unless such surface is inaccessible from the top of a car or from the top of the
car via its adjacent installation such as a counterweight and structural supports.


3.5 Construction of the walls of liftwells facing a car entrance

Notwithstanding paragraph 3.4.4, below each landing sill over a vertical distance of 350 mm,

the wall of a well facing a car entrance shall be so constructed that –

(a) the inner surface of such wall shall form a continuous vertical surface composed of

smooth and hard elements. This smooth surface shall extend at least 25 mm on both
sides beyond the full car entrance width. Plaster faced and glass walls are forbidden,
and


(b) where it is not practicable to provide a continuous smooth surface, any projection in

excess of 5 mm shall either be connected to the lintel of the door opening below, or be
extended downward and splayed, on its underside, to an angle of not less than 75° from
the horizontal plane for a distance of not less than 20 mm, by means of metal plates,
concrete or other similar material.


3.6 Protection of any space located below a car or a counterweight

3.6.1 Liftwells shall preferably not be situated above a space accessible to persons.

3.6.2 If an accessible space exists beneath a car or a counterweight, the base of the pit shall be

designed for an imposed load of at least 5 kPa, and –

(a) either there shall be installed below the counterweight buffer a solid pier extending down

to solid ground, or

(b) the counterweight shall be equipped with safety gear.

3.7 Well containing cars and counterweights belonging to several lifts or service lifts

3.7.1 In the lower part of a well there shall be a partition between the moving parts (car or

counterweight) of different lifts or service lifts. This partition shall extend at least from the
floor of the lift pit to a height of 2.5 m above the floor of the pit, and across the whole depth of
the well.


3.7.2 If the horizontal distance between the edge of a car roof and a moving part (car or

counterweight) of an adjacent lift or service lift is less than 300 mm, the partition required in
paragraph 3.7.1 shall be extended through the full height of the well.


3.8 Lift pit

3.8.1 The lower part of a well shall consist of a pit, the bottom of which shall be smooth and

approximately level, except for any bases for buffers, guides and jacks and for water drainage

- 6 -

Page 19

Appendix


Sample of General Note to be provided on general building plans

Lift Machine Room Clearances

(Refer to Note 7 on Table 1)

For the lifts (Nos. xxxxxxx) to be installed, the following machine room clearances will be
provided in accordance with the Code of Practice for Building Works for Lifts and Escalators

a. a clear horizontal area in front of the panels / cabinets with depth not less than 0.7m and

width not less than 0.5m and the full width of the cabinet / panel.


b. a clear horizontal area of at least 0.5m x 0.6m for servicing and inspection of moving
parts and manual emergency operation where necessary.


c. access ways to these clear spaces, with a width not less than 0.5m or, in areas where there

are no moving parts, 0.4m.






- 15 -

Similer Documents