1959-HKRS30-8-49_Part02 — Page 30

Application of British Standard

Code of

Practice or Specification.

Application

of Part II.

Clearance for sale

operation of lifts.

Liftway exclusively

for lift and

machinery.

Restriction

of number of lifts in and liftwar.

Liftway to be enclosed, etc.

Wall of

"safety rope" means a rope, attached to a car or counterweight, which operates the safety gear provided for the lift or counterweight, in the event of a failure of all the suspension ropes or their attachments: "service lift" means a lift, used or intended to be used exclusively for carrying goods, having a rated load of not more than five hundredweight and a car in which the area of the floor is not more than nine square feet and whose height is not more than four feet;

"stop push" and "stop switch" mean a push button or switch, respectively, designed to open the control circuit of a lift and w cause the lift to stop.

3. Save insofar as provision is made therefor in these regulations, every lift and any machinery and mechanism connected therewith shall be designed and constructed in accordance with the current relevant British Standard Code of Practice or Specification.

PART II.

General.

4. Save as otherwise provided, the provisions of this Part of these regulations shall apply to all lifts.

5. Every liftway and lift pit, the walls enclosing any lift well and every room provided for housing the machinery and other equipment for any lift shall be such as to provide adequate clearance for the safe operation of the lift and the machinery and other equipment provided therefor.

6. Nothing, other than a lift and such machinery connected there- with as may be necessary, shall be installed or accommodated in liftway.

7. Not more than four lifts shall be accommodated in one liftway

8. (1) Every liftway shall, except for the openings for doors and ventilation, be completely enclosed.

(2) The walls so enclosing any liftway sball—

(a) be of sufficient strength to support the lift guides; and

(6) have an F.R.P. of not less than two hours.

9. (1) Save as provided in paragraph (2) and subject to the Giftway facing provisions of paragraph (3), the inner surface of that wall, enclosing

car to be

without

projections

от порется.

liftway, which faces the entrance to the car of the lift shall, so far ar practicable, form a smooth continuous surface, without projections ol

recesses.

5

(2) Where a projection or recess is unavoidable, such projection or recess shall be splayed, on its underside, to an angle of 75° from the horizontal.

(3) Where the lift installed in any liftway is fitted with a levelling device, the inner surface of such wall shall, for a distance not less than the aggregate of the depths of the levelling zone and the distance which the lift is capable of travelling of its own momentum when the power is cut off, without exception, form a smooth continuous surface without projections of recesses.

10. (1) (a) Every liftway shall be ventilated, at the top thereof, Ventilation

by means of a vent to the open air.

of liftway,

(b) Every such vent shall be situated—

(i) in a position, in one of the walls enclosing the liftway, above the level of the roof of the building and directly below the floor at the top of the liftway; or

(i) subject to the provisions of sub-paragraph (c), in the floor at the top of the liftway.

(c) Where any such vent is situated in the floor at the top of the liftway, there shall be provided in the walls or roof of the room provided for housing the machinery and other equipment provided for the lift, openings baving an area not less than the arca of such vent

(4) The open area of every such vent shall be not less than one and a half square feet for every lift installed in the liftway.

(2) (a) Every liftway shall be ventilated, at the bottom thereof. by means of a vent, of adequate size, situated in any position below the level of the lowest landing.

(b) Where any such vent does not open to the open air, it shall be covered with double fine brass wire gauze having a mesh of not less than twenty-eight to the lineal inch.

11. Where any liftway terminates elsewhere than on or in the Liftway ground, the floor of the lift pit shall be of fire resisting construction and terminating shall have ao F.R.P. of not less than two hours.

clsewhere than on or it ground.

12. Where any part of any building below any liftway is used or Special likely to be used by any person---

provisions

for cast

of building

below liftway

(a) the counterweight, as well as the car, shall be provided with where part

a safety gear; and (b) the floor of the lift pit shall be so constructed as to be capable is used or

of withstanding the impact of the car of the lift with full used to any rated load or the impact of the counterweight, when either person.

likely to be