1 - AS 1735.3-1995 LIFTS, ESCALATORS AND MOVING WALKS - PASSENGER AND GOODS LIFTS-ELECTROHYDRAULIC
4 - PREFACE
5 - CONTENTS
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 REFERENCED DOCUMENTS
9 - 1.3 DEFINITIONS
9 - 1.3.1 Elastomer buffer
9 - 1.3.2 Pawl device
9 - 1.3.3 Safety rope
9 - 1.3.4 Telescopic rams and cylinders
9 - 1.3.5 Multiple-axis telescoping rams and cylinders
9 - 1.3.6 Stored energy pumping system
10 - SECTION 2 SPEED
11 - SECTION 3 PRESSURE TEST AFTER ERECTION
11 - SECTION 4 BEAMS, SUPPORTS, AND FOUNDATIONS FOR CYLINDERS, MACHINES AND OVERHEAD SHEAVES
12 - SECTION 5 MACHINE ROOMS
12 - 5.1 GENERAL
12 - 5.2 MACHINE ROOM LOCATION RELATIVE TO LIFT WELL
12 - 5.3 COMMUNICATIONS
12 - 5.4 LIFT MOVEMENT OBSERVATION
14 - SECTION 6 ACCESS TO OVERHEAD SHEAVES
15 - SECTION 7 HYDRAULIC EQUIPMENT
15 - 7.1 GENERAL
15 - 7.2 RAMS
15 - 7.2.1 General
15 - 7.2.2 Material
15 - 7.2.3 Ram design
15 - 7.2.3.1 General
15 - 7.2.3.2 Buckling calculations
15 - 7.2.3.3 Pressure calculations
15 - 7.2.3.4 Tensile stress calculations
15 - 7.2.4 Ram connection
16 - 7.2.5 Ram joints
19 - 7.2.6 Ram stops
19 - 7.2.7 Car stops for upward travel
19 - 7.2.8 Ram ends subject to fluid pressure
19 - 7.2.9 Ram-follower guide
19 - 7.2.10 Head guide
19 - 7.3 CYLINDERS
19 - 7.3.1 Materials
19 - 7.3.2 Cylinder design
20 - 7.3.3 Clearance at bottom of cylinder
20 - 7.3.4 Cylinder and ram ends
20 - 7.3.4.1 General
20 - 7.3.4.2 Thickness of cylinder end
20 - 7.3.4.3 Dished seamless ends convex to pressure
20 - 7.3.4.4 Reinforced ends
20 - 7.3.4.5 Ends subject to mechanical loads in addition to fluid pressure loads
20 - 7.3.5 Collection of oil leakage
20 - 7.3.6 Bleeding off air or gas
22 - 7.3.7 Cylinder protection
22 - 7.3.8 Cylinder restraint
22 - 7.3.9 Multiple cylinders
22 - 7.3.10 Multiple-axis telescoping cylinders
22 - 7.4 HYDRAULIC LINES
22 - 7.4.1 General
22 - 7.4.1.1 General
22 - 7.4.1.2 Length
22 - 7.4.1.3 Supports
22 - 7.4.1.4 Lines and fittings
23 - 7.4.2 Rigid lines and fittings
23 - 7.4.2.1 Pressure ratings of lines and fittings
23 - 7.4.2.2 Assembly precautions
23 - 7.4.3 Hoses
23 - 7.4.3.1 Hoses and fittings
23 - 7.4.3.2 Location
23 - 7.4.3.3 Supports
23 - 7.4.3.4 Installation
25 - 7.5 VALVES
25 - 7.5.1 General
25 - 7.5.1.1 Working pressures
25 - 7.5.1.2 Location
25 - 7.5.2 Pump relief valve
25 - 7.5.2.1 Provision
26 - 7.5.2.2 Type and location
26 - 7.5.2.3 Setting
26 - 7.5.2.4 Size
26 - 7.5.2.5 Sealing
26 - 7.5.3 Check valve
26 - 7.5.4 Door lock valve
26 - 7.5.5 Flow restriction (pipe rupture) valve
27 - 7.5.6 Manual operation
27 - 7.5.6.1 Moving the car downward
27 - 7.5.6.2 Moving the car upward
27 - 7.5.7 Low pressure valve
27 - 7.5.8 Down direction valves
27 - 7.6 TANKS
27 - 7.6.1 Material
27 - 7.6.2 Capacity
27 - 7.6.3 Means for checking liquid level
27 - 7.6.4 Covers and venting
28 - 7.6.5 Factor of safety
28 - 7.7 AUXILIARY EQUIPMENT LOCATION
29 - 7.8 STORED ENERGY PUMPING SYSTEM
30 - SECTION 8 CLEARANCES FOR CARS AND COUNTERWEIGHTS
30 - 8.1 DIRECT-ACTING ELECTROHYDRAULIC LIFTS
30 - 8.1.1 Clearance at bottom of car
30 - 8.1.1.1 General
30 - 8.1.1.2 Mechanical clearance
30 - 8.1.1.3 Person clearance
30 - 8.1.2 Car buffer clearance
30 - 8.1.3 Top overtravel
31 - 8.1.4 Top overtravel clearance
31 - 8.1.5 Standing area
32 - 8.1.6 Clearance at top of flying counterweight
32 - 8.1.7 Clearance at bottom of flying counterweight
32 - 8.2 SUSPENDED ELECTROHYDRAULIC LIFTS (INDIRECT)
32 - 8.2.1 Clearance at bottom of car
32 - 8.2.1.1 General
32 - 8.2.1.2 Mechanical clearance
32 - 8.2.1.3 Person clearance
33 - 8.2.2 Car buffer clearance
33 - 8.2.3 Compressed ram clearance
33 - 8.2.4 Clearance above car with ram fully extended
33 - 8.2.5 Top overtravel
33 - 8.2.6 Clearance at top of flying counterweight
33 - 8.2.7 Clearance at bottom of flying counterweight
35 - SECTION 9 BUFFERS AND HOLDING DEVICES
35 - 9.1 CAR BUFFERS
35 - 9.1.1 General
35 - 9.1.2 Location
35 - 9.1.3 Solid buffers
35 - 9.1.4 Spring buffers
35 - 9.1.4.1 Load rating
36 - 9.1.4.2 Stroke
36 - 9.1.4.3 Rating plate
36 - 9.1.5 Oil buffers
36 - 9.1.5.1 Load rating
36 - 9.1.5.2 Stroke
36 - 9.1.5.3 Retardation
36 - 9.1.5.4 Factor of safety for oil buffer parts
36 - 9.1.5.5 Slenderness ratio for members of oil buffers
36 - 9.1.5.6 Plunger-return requirements
36 - 9.1.5.7 Buffer oil specification
36 - 9.1.5.8 Means of determining oil level
36 - 9.1.5.9 Rating plate
37 - 9.1.5.10 Acceptance of oil buffers
37 - 9.1.5.11 Change in design
37 - 9.1.6 Elastomer buffers
37 - 9.1.6.1 Load rating
37 - 9.1.6.2 Stroke
37 - 9.1.6.3 Rating plate
37 - 9.1.6.4 Retardation
37 - 9.2 DEVICES TO HOLD CAR ABOVE LOWEST FLOOR
38 - 9.3 COUNTER WEIGHT BUFFERS
38 - 9.4 FLYING COUNTERWEIGHT BUFFERS
38 - 9.5 PAWL DEVICES
40 - SECTION 10 PITS
40 - 10.1 GENERAL
40 - 10.2 PITS NOT EXTENDING TO LOWEST FLOOR OF BUILDING
40 - SECTION 11 LIFTWELL ENCLOSURES
41 - SECTION 12 LANDING DOORS
41 - 12.1 PROVISION
41 - 12.2 GENERAL
41 - 12.3 CLOSING OF LANDING DOORS
41 - 12.3.1 General
41 - 12.3.2 Horizontally operated doors
41 - 12.3.2.1 Manually operated
41 - 12.3.2.2 Power-operated
41 - 12.3.3 Vertical sliding doors
41 - 12.3.3.1 Manually operated
41 - 12.3.3.2 Power-operated
41 - 12.3.4 Vertical bi-parting doors
41 - 12.3.4.1 Manually operated
41 - 12.3.4.2 Power-operated
42 - 12.3.5 Hinged doors
43 - SECTION 13 LOCKING OF LANDING DOORS
43 - 13.1 GENERAL
43 - 13.2 PARKING OF ATTENDANT-CONTROLLED CARS
43 - SECTION 14 DOOR LOCKS
44 - SECTION 15 CLEARANCES IN LIFTWELLS AND ENCLOSURES
44 - 15.1 GENERAL
44 - 15.2 FLUSHNESS OF LIFTWELL
44 - SECTION 16 PIPING, OR SIMILAR, IN LIFTWELLS OR MACHINE ROOMS
45 - SECTION 17 SUSPENSION, GOVERNOR AND SAFETY ROPES
46 - SECTION 18 ROPE ATTACHMENTS AND FITTINGS
46 - SECTION 19 SHEAVES AND PULLEYS
46 - SECTION 20 COUNTERWEIGHTS AND FLYING COUNTERWEIGHTS
46 - 20.1 GENERAL
46 - 20.2 PITGUARDS
46 - 20.3 FLYING COUNTERWEIGHT OVERTRAVEL LIMIT SWITCH
46 - 20.4 MASS OF FLYING COUNTERWEIGHT
47 - SECTION 21 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
47 - 21.1 GENERAL
47 - 21.2 STRESSES AND DEFLECTIONS IN STEEL CAR GUIDE RAILS
47 - 21.2.1 Direct-acting lifts
47 - 21.2.2 Suspended lifts with safety gear
47 - 21.2.3 Cantilevered car retention
48 - SECTION 22 RATED CAR CAPACITY AND CLASSES OF LOADING
48 - SECTION 23 CAR CONSTRUCTION
48 - 23.1 GENERAL
48 - 23.2 CAR FRAMES FOR DIRECT-ACTING LIFTS
48 - SECTION 24 CAR DOORS
48 - SECTION 25 POWER OPERATION OF CAR AND LANDING DOORS
49 - SECTION 26 ELECTRICAL INSTALLATION
49 - 26.1 GENERAL
49 - 26.2 CONTROLLERS
49 - SECTION 27 EARTHING
49 - 27.1 GENERAL
49 - 27.2 ELECTRICAL APPARATUS INSTALLED ON CARS
50 - SECTION 28 PRECAUTIONS IN WIRING
50 - SECTION 29 OPERATING DEVICES AND CONTROL EQUIPMENT
50 - 29.1 GENERAL
50 - 29.2 OPERATING IN THE EVENT OF SUB-MAINS SUPPLY FAILURE
51 - SECTION 30 ELECTRICAL PROTECTIVE DEVICES
51 - 30.1 GENERAL
51 - 30.1.1 Compliance with AS 1735.2
51 - 30.1.2 Variations from AS 1735.2
51 - 30.2 TOP OVER TRAVEL LIMIT SWITCH
51 - 30.3 ANTI-CREEP LEVELLING DEVICE
51 - 30.4 NORMAL LIMIT SWITCHES
51 - 30.5 DOOR LOCK VALVE TEST SWITCH
51 - 30.6 FLYING COUNTERWEIGHT OVERTRAVEL LIMIT SWITCH
51 - 30.7 RECYCLING SYNCHRONIZATION
52 - SECTION 31 TERMINAL STOPPING DEVICES
52 - 31.1 GENERAL
52 - 31.2 NORMAL LIMIT SWITCHES (SLOWING DOWN AND STOPPING)
52 - 31.2.1 General
52 - 31.2.2 Location
52 - 31.2.3 Switches in machine rooms
52 - 31.3 TOP OVERTRAVEL LIMIT SWITCHES
52 - 31.3.1 Operation
53 - 31.3.2 Setting
53 - 31.4 ANTI-CREEP LEVELLING DEVICE
53 - 31.5 FLYING COUNTERWEIGHT BOTTOM OVERTRAVEL LIMIT SWITCH
54 - SECTION 32 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES AND THE LIKE
54 - SECTION 33 CAR AND COUNTERWEIGHT SAFETY GEAR
54 - 33.1 GENERAL
54 - 33.2 TRIPPING OF TYPE 'A' SAFETY GEAR BY SAFETY ROPE
55 - SECTION 34 SPEED GOVERNORS
56 - SECTION 35 SAFETY DEVICE SELECTION
57 - APPENDIX A - NOTATION
58 - APPENDIX B - MEDIUM DENSITY POLYETHYLENE (MDPE)
59 - INDEX