D 6
CAP. 123]
Building (Escalators) Regulations
[Subsidiary]
Rated load. L.N. 294/76.
Rate of speed. L.N. 294/76.
Starting switches.
Machine brakes.
Governors.
Device to be provided in case step chain breaks.
Device to be provided in case drive chain breaks.
Emergency stop switches.
[1985 Ed.
24. The rated load of every escalator shall be calculated by means of the formula herein set out where W = the width of the stair tread in metres and A = the horizontal distance in metres between the teeth of the upper and lower combplates.
Rated load = 290 WA kg
25. The rate of speed of any escalator shall be not more than 0.65 m/s measured along the angle of inclination.
26. The starting switch of every escalator shall be-
(a) operated by a key; and
(b) situated in such a position that any person operating the same is able to see the escalator.
27. (1) Every escalator shall be provided with a machine brake.
(2) Every such brake shall be capable of stopping the escalator with full rated load thereon.
28. (1) Every escalator shall be provided with a governor.
(2) The speed of the escalator at which the governor is designed to operate shall, in no case, be more than 40 per cent greater than the rated speed of the escalator.
29. Every escalator shall be provided with an automatic device which will cause the supply of power to the driving machine of the escalator to be cut off in the event of the breaking of a step chain.
30. Where the driving machine of an escalator is connected to the main drive shaft by means of a chain, there shall be provided an automatic device which will cause the brake provided for such shaft to be applied in the event of the breaking of the chain.
31. (1) Every escalator shall be provided with stop switches for use on occasions of emergency.
(2) One such stop switch shall be situated at or near the upper landing of the escalator and the other at or near the lower landing thereof.
(3) Every such stop switch shall-
(a) be operated by means of a button;
(b) be such that the driving machine of the escalator cannot be started thereby; and
(c) have clearly marked thereon, in English and Chinese, the words "STOP SWITCH".
D 6
CAP. 123]
Building (Escalators) Regulations
[Subsidiary]
Rated load. L.N. 294/76.
Rate of speed. L.N. 294/76.
Starting switches.
Machine brakes.
Governors.
Device to he provided in case step chain breaks.
Device to be
provided in case drive chain breaks.
Emergency stop switches.
[1985 Ed.
24. The rated load of every escalator shall be calculated by means of the formula herein set out where W = the width of the stair tread in metres and A=the horizontal distance in metres between the teeth of the upper and lower combplates.
Rated load=290 WA kg
25. The rate of speed of any escalator shall be not more than 0.65 m/s measured along the angle of inclination.
26. The starting switch of every escalator shall be-
(a) operated by a key; and
(b) situated in such a position that any person operating the
same is able to see the escalator.
27. (1) Every escalator shall be provided with a machine brake.
(2) Every such brake shall be capable of stopping the escalator with full rated load thereon.
28. (1) Every escalator shall be provided with a governor.
(2) The speed of the escalator at which the governor is designed to operate shall, in no case, be more than 40 per cent greater than the rated speed of the escalator.
29. Every escalator shall be provided with an automatic device which will cause the supply of power to the driving machine of the escalator to be cut off in the event of the breaking of a step chain.
30. Where the driving machine of an escalator is connected to the main drive shaft by means of a chain, there shall be provided an automatic device which will cause the brake provided for such shaft to be applied in the event of the breaking of the chain.
31. (1) Every escalator shall be provided with stop switches for use on occasions of emergency.
(2) One such stop switch shall be situated at or near the upper landing of the escalator and the other at or near the lower landing thereof.
(3) Every such stop switch shall
(a) be operated by means of a button;
(b) be such that the driving machine of the escalator cannot be
started thereby; and
(c) have clearly marked thereon, in English and Chinese, the
words "STOP SWITCH”.
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