HK Builder's Lift Operator (CIC) flashcards
HK Builder's Lift Operator (CIC) · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Cap. 470
- The Builder's Lift and Tower Working Platform Ordinance in Hong Kong, governing design, installation, use, maintenance and examination of builder's lifts and tower working platforms.
- Competent examiner
- A registered professional engineer appointed in writing to carry out the 6-monthly thorough examination of a builder's lift and issue the certificate of examination.
- Examination interval
- A builder's lift must be thoroughly examined by a competent examiner at intervals not exceeding six months, and also before first use, after relocation, and after substantial repair.
- Operator age and fitness
- A builder's lift operator must be at least 18 years old, physically fit, and hold a valid operator's certificate for the class of lift being operated.
- Rack-and-pinion drive
- A builder's lift drive type in which a motor-driven pinion on the car engages a gear rack fixed to the mast, providing positive drive without rope slip.
- Mast wall ties
- Structural connections fixing the hoist mast to the building at intervals specified by the manufacturer, commonly every 6 to 9 metres and at the top.
- Rated load plate
- A plate on the car showing the maximum load, and for passenger-rated hoists the maximum number of passengers, that the builder's lift may carry.
- Base enclosure
- The fenced and locked area at the foot of the hoist containing the foundation, buffers and isolator, which only authorised persons may enter.
- Overspeed governor
- A device that detects when the car descends above its tripping speed and activates the safety gear to arrest the car against the guide rail or mast.
- Safety gear
- A gripping device that clamps the guide rail or mast to arrest the car when the overspeed governor trips; progressive types are required for passenger-carrying hoists.
- Final limit switch
- A separate, non-resettable-from-the-car switch that cuts power if the normal upper limit switch fails, tested during the periodic examination by a competent person.
- Gate interlock
- A mechanical and electrical device ensuring the car cannot move unless the car gate and every landing gate are closed and locked.
- Fail-safe brake
- A spring-applied, electrically released brake that applies automatically when power is lost or the control is released, and must hold 125 percent of rated load.
- Anemometer cut-out
- A wind-speed sensor that stops hoist operation when the manufacturer's limit is exceeded, commonly around 20 metres per second, requiring the car to be lowered.
- Daily pre-use check
- The operator's inspection before each shift covering mast, wall ties, base, gates, interlocks, brakes, limit switches, alarm, lights and the rated load plate.
- Interlock test
- A test confirming that with a landing gate open the car cannot move, and with the car away from a landing the gate cannot be opened.
- Mast plumb tolerance
- The maximum permitted deviation of the mast from vertical, commonly 1 in 1000 or as specified by the manufacturer, checked during inspection.
- Safety gear drop test
- A test in which the car, empty and at a safe height with the area barricaded, is allowed to trip the safety gear to confirm it arrests the car.
- Overload limiter
- A device set to trip at not more than 110 percent of rated load, giving an alarm and preventing hoisting when the car is overloaded.
- Load distribution
- The requirement to spread load evenly across the car floor, secure it against shifting, and avoid concentrated loads near the gate.
- Unattended controls
- A prohibited condition in which the operator leaves the controls with the car raised; the operator must remain at the controls while the car is in motion.
- Bell signal code
- The agreed ring code posted at the ground station: one ring means stop, two rings mean hoist up, and three rings mean lower down.
- Stop signal rule
- The operator must stop immediately on any stop signal, regardless of who gives it, and must acknowledge every signal received.
- Signaller duty
- The banksman at the landing who directs the operator, confirms the landing number and load, and must be in clear view or in radio contact.
- Barricade below hoist
- The site coordinator's duty to fence and signpost the area under the hoist so that no one walks or works beneath a suspended load.
- Stalled car procedure
- If the car stops between landings, keep passengers calm, use the intercom to call for help, and do not climb out; wait for authorised manual lowering.
- Typhoon procedure
- On typhoon or black rainstorm, lower the car to the base, secure the landing gates, follow the site procedure, and inspect before resuming operation.
- Incident reporting
- On any accident or dangerous occurrence, stop work, isolate the lift, give first aid, and report to the Labour Department and police as required.
- Log book
- A record kept on site of daily checks, defects, repairs, examinations and the names of persons who carried out the work.
- Certificate display
- The 6-monthly certificate of examination must be kept available on site; operating without a valid certificate is an offence under Cap. 470.
- Manual lowering
- A procedure using a hand-winch or manual release to lower the car to the nearest landing after power failure, carried out only by trained authorised persons.
- Substantial repair
- Any major repair, alteration or relocation of a builder's lift that requires a new examination by the competent examiner before the lift returns to service.