AS 1735.3-2001

1 - AS 1735.3-2001 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
10 - SECTION 2 SPEED
10 - SECTION 3 PRESSURE TEST AFTER ERECTION
10 - SECTION 4 BEAMS, SUPPORTS, AND FOUNDATIONS FOR CYLINDERS, MACHINES AND OVERHEAD SHEAVES
11 - SECTION 5 MACHINE ROOMS
11 - 5.1 GENERAL
11 - 5.2 MACHINE ROOM LOCATION RELATIVE TO LIFTWELL
11 - 5.3 COMMUNICATIONS
11 - 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
16 - 7.2.4 Ram connection
16 - 7.2.5 Ram joints
18 - 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 - 7.3.5 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
23 - 7.4.2 Rigid lines and fittings
23 - 7.4.3 Hoses
27 - 7.5 VALVES
27 - 7.5.1 General
27 - 7.5.2 Pump relief valve
27 - 7.5.3 Check valve
27 - 7.5.4 Door lock valve
28 - 7.5.5 Flow restriction (pipe rupture) valve
28 - 7.5.6 Manual operation
29 - 7.5.7 Low pressure device
29 - 7.5.8 Down direction valves
29 - 7.6 TANKS
29 - 7.6.1 Material
29 - 7.6.2 Capacity
29 - 7.6.3 Means for checking liquid level
29 - 7.6.4 Covers and venting
29 - 7.6.5 Factors of safety
29 - 7.7 AUXILIARY EQUIPMENT LOCATION
31 - 7.8 STORED ENERGY PUMPING SYSTEM
32 - SECTION 8 CLEARANCES FOR CARS AND COUNTERWEIGHTS
32 - 8.1 DIRECT-ACTING ELECTROHYDRAULIC LIFTS
32 - 8.1.1 Clearance at bottom of car
32 - 8.1.2 Car buffer clearance
32 - 8.1.3 Top overtravel
33 - 8.1.4 Top overtravel clearance
34 - 8.1.5 Standing area
34 - 8.1.6 Clearance at top of flying counterweight
34 - 8.1.7 Clearance at bottom of flying counterweight
34 - 8.2 SUSPENDED ELECTROHYDRAULIC LIFTS (INDIRECT)
34 - 8.2.1 Clearance at bottom of car
35 - 8.2.2 Car buffer clearance
35 - 8.2.3 Compressed ram clearance
35 - 8.2.4 Clearance above car with ram fully extended
35 - 8.2.5 Top overtravel
35 - 8.2.6 Clearance at top of flying counterweight
35 - 8.2.7 Clearance at bottom of flying counterweight
37 - SECTION 9 BUFFERS AND HOLDING DEVICES
37 - 9.1 CAR BUFFERS
37 - 9.1.1 General
37 - 9.1.2 Location
37 - 9.1.3 Solid buffers
38 - 9.1.4 Spring buffers
38 - 9.1.5 Oil buffers
40 - 9.1.6 Elastomer buffers
40 - 9.2 DEVICES TO HOLD CAR ABOVE LOWEST FLOOR
41 - 9.3 COUNTERWEIGHT BUFFERS
41 - 9.4 FLYING COUNTERWEIGHT BUFFERS
41 - 9.5 PAWL DEVICES
43 - SECTION 10 PITS
43 - 10.1 GENERAL
43 - 10.2 PITS NOT EXTENDING TO LOWEST FLOOR OF BUILDING
44 - SECTION 11 LIFTWELL ENCLOSURES
45 - SECTION 12 LANDING DOORS
45 - 12.1 PROVISION
45 - 12.2 GENERAL
45 - 12.3 CLOSING OF LANDING DOORS
45 - 12.3.1 General
45 - 12.3.2 Horizontally operated doors
45 - 12.3.3 Vertical sliding doors
45 - 12.3.4 Vertical bi-parting doors
46 - 12.3.5 Hinged doors
47 - SECTION 13 LOCKING OF LANDING DOORS
47 - 13.1 GENERAL
47 - 13.2 PARKING OF ATTENDANT-CONTROLLED CARS
47 - SECTION 14 DOOR LOCKS
48 - SECTION 15 CLEARANCES IN LIFTWELLS AND ENCLOSURES
48 - 15.1 GENERAL
48 - 15.2 FLUSHNESS OF LIFTWELL
48 - SECTION 16 PIPING, OR SIMILAR, IN LIFTWELLS OR MACHINE ROOMS
49 - SECTION 17 SUSPENSION MEANS
49 - 17.1 GENERAL
49 - 17.2 ROPE SUSPENSION
49 - 17.3 CHAIN SUSPENSION
49 - 17.3.1 General
49 - 17.3.2 Means
49 - 17.3.3 Number
49 - 17.3.4 Type
50 - 17.3.5 Anchorages
50 - 17.3.6 Factor of safety
50 - 17.3.7 Alignment
50 - 17.3.8 Equalizers
50 - 17.3.9 Chainwheels
51 - SECTION 18 ROPE ATTACHMENTS AND FITTINGS
51 - SECTION 19 SHEAVES AND PULLEYS
52 - SECTION 20 COUNTERWEIGHTS AND FLYING COUNTERWEIGHTS
52 - 20.1 GENERAL
52 - 20.2 PIT GUARDS
52 - 20.3 FLYING COUNTERWEIGHT OVERTRAVEL LIMIT SWITCH
52 - 20.4 MASS OF FLYING COUNTERWEIGHT
53 - SECTION 21 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
53 - 21.1 GENERAL
53 - 21.2 STRESSES AND DEFLECTIONS IN STEEL CAR GUIDE RAILS
53 - 21.2.1 Direct-acting lifts
53 - 21.2.2 Suspended lifts with safety gear
53 - 21.2.3 Cantilevered car retention
54 - SECTION 22 RATED CAR CAPACITY AND CLASSES OF LOADING
54 - SECTION 23 CAR CONSTRUCTION
54 - 23.1 GENERAL
54 - 23.2 CAR FRAMES FOR DIRECT-ACTING LIFTS
54 - SECTION 24 CAR DOORS
54 - SECTION 25 POWER OPERATION OF CAR AND LANDING DOORS
55 - SECTION 26 ELECTRICAL INSTALLATION
55 - 26.1 GENERAL
55 - 26.2 CONTROLLERS
56 - SECTION 27 EARTHING
56 - 27.1 GENERAL
56 - 27.2 ELECTRICAL APPARATUS INSTALLED ON CARS
57 - SECTION 28 PRECAUTIONS IN WIRING
57 - SECTION 29 OPERATING DEVICES AND CONTROL EQUIPMENT
57 - 29.1 GENERAL
57 - 29.2 OPERATING IN THE EVENT OF SUB-MAINS SUPPLY FAILURE
58 - SECTION 30 ELECTRICAL PROTECTIVE DEVICES
58 - 30.1 GENERAL
58 - 30.1.1 Compliance with AS 1735. 2
58 - 30.1.2 Variations from AS 1735. 2
58 - 30.2 TOP OVERTRAVEL LIMIT SWITCH
58 - 30.3 ANTI-CREEP LEVELLING DEVICE
58 - 30.4 NORMAL LIMIT SWITCHES
58 - 30.5 DOOR LOCK VALVE TEST SWITCH
58 - 30.6 FLYING COUNTERWEIGHT OVERTRAVEL LIMIT SWITCH
59 - 30.7 RECYCLING SYNCHRONIZATION
59 - 30.8 SLACK CHAIN SWITCH
60 - SECTION 31 TERMINAL STOPPING DEVICES
60 - 31.1 GENERAL
60 - 31.2 NORMAL LIMIT SWITCHES (SLOWING DOWN AND STOPPING)
60 - 31.2.1 General
60 - 31.2.2 Location
60 - 31.2.3 Switches in machine rooms
61 - 31.3 TOP OVERTRAVEL LIMIT SWITCHES
61 - 31.3.1 Operation
61 - 31.3.2 Setting
61 - 31.4 ANTI-CREEP LEVELLING DEVICE
61 - 31.5 FLYING COUNTERWEIGHT BOTTOM OVERTRAVEL LIMIT SWITCH
62 - SECTION 32 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES AND THE LIKE
62 - SECTION 33 CAR AND COUNTERWEIGHT SAFETY GEAR
62 - 33.1 GENERAL
62 - 33.2 TRIPPING OF TYPE ‘A’ SAFETY GEAR BY SAFETY ROPE
63 - SECTION 34 SPEED GOVERNORS
64 - SECTION 35 SAFETY DEVICE SELECTION
65 - APPENDIX A - NOTATION
66 - APPENDIX B - MEDIUM DENSITY POLYETHYLENE (MDPE)
67 - INDEX

Specifies 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.
Fifth edition 2001.