AS 1735.3-1995

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

Sets out requirements for electrohydraulic lifts for carrying passengers and goods. The Standard is complementary to AS 1735.1 and AS 1735.2.

This Standard sets out requirements for electrohydraulic lifts for carrying passengers and goods. This Standard is complementary to AS 1735.1 and AS 1735.2, but the requirements of this Standard take precedence over corresponding requirements of those Standards.

First published as part of AS CA3-1935.
Redated 1937.
Redated 1938.
Redated 1939.
Second edition 1941.
Third edition 1947.
Redated 1950.
Redated 1951.
Redated 1952.
Redated 1953.
Revised and redesignated in part as AS CA3.3-1968.
Revised and redesignated AS 1735.3-1975.
Second edition 1982.
Third edition 1986.
Fourth edition 1995.