NZS 4332:1997
Non-domestic passenger and goods lifts
Specifies requirements for the design, construction, operation and testing of passenger carrying lifts including goods lifts with car controls and not including lifts in single unit dwellings. It applies to new building work being either the installation of a new lift or new work associated with an existing installation.
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COMMITTEE REPRESENTATION
ACKNOWLEDGEMENT
© COPYRIGHT
CONTENTS
RELATED DOCUMENTS
FOREWORD
REVIEW OF STANDARDS
PART 1 GENERAL REQUIREMENTS
1 SCOPE
2 GENERAL
2.1 Earthquake loadings
2.2 Drawings and particulars of the lift installation
2.3 Lift security system
2.4 Building security system
2.5 Maintenance and inspection
3 DEFINITIONS
4 MATERIALS AND METHODS OF CONSTRUCTION
4.1 Materials
4.2 Steel (other than castings)
4.3 Castings
4.4 Timber
4.5 Concrete
4.6 Welding
4.7 Glass
PART 2 ELECTRIC LIFTS: PASSENGER AND GOODS
5 GENERAL
5.1 Scope
5.2 Electric lift particulars to be documented
6 MACHINERY AND SHEAVE BEAMS, SUPPORTS AND FOUNDATIONS
6.1 Floors, beams and supports required
6.2 Loads on machinery and sheave beams, floors or foundations and their supports
6.3 Securing of equipment to the supporting structures
6.4 Bolts, studs and washers for supporting and overhead structures, car frames, counterweights and guide rail supports
6.5 Calculated deflections of machinery, sheave and hitch beams and their supports
6.6 Strength of building construction
7 MACHINE ROOMS
7.1 Construction
7.2 Equipment in machine room
7.3 Limitations to the use of the machine room
7.4 Machine room entrances
7.5 Means of access to machine rooms
7.6 Headroom in machine room
7.7 Machine room equipment – Accessibility and clearance
7.8 Loading on machine room floors (including platform and secondary floors)
7.9 Hatches in machine rooms
7.10 Protection of floor openings
7.11 Difference in floor levels in machine rooms
7.12 Machine room stop switch
7.13 Platforms (other than machine room floors) affording access to overhead sheaves and other equipment
7.14 Lighting of machine rooms (including platforms and secondary floors)
7.15 Protection of machine rooms against weather
7.16 General purpose power point in the machine room
7.17 Ventilation of machine rooms
7.18 Machine room lifting beams
8 MACHINES
8.1 General
8.2 Types of driving machines
8.3 Assumed loadings
8.4 Factors of safety
8.5 Traction sheaves and drums
8.6 Bolts transmitting torque
8.7 Threads for studs or screws in tension
8.8 Shafts
8.9 Gears
8.10 Bearings
8.11 Brakes
8.12 Flat belt and chain drives
8.13 V-Belt driven machines
8.14 Maximum speed
8.15 Rope traction
8.16 Emergency hand winding
9 TOP AND BOTTOM CLEARANCES FOR CARS AND COUNTERWEIGHTS
9.1 Clearance at bottom of car
9.2 Car buffer clearance
9.3 Clearance of car at top landing
9.4 Counterweight buffer clearance
9.5 Clearance at top of counterweight
9.6 Clearance at bottom of counterweight
10 BUFFERS AND STOPS
10.1 Provision of buffers
10.2 Location of buffers
10.3 Construction and requirements for solid buffers
10.4 Construction and requirements for spring buffers
10.5 Construction and requirements for oil buffers
10.6 Buffer oil requirements
10.7 Permanent stops for drum drive lifts
11 PITS
11.1 Provision of pits
11.2 Pit floors
11.3 Pit maintenance
11.4 Guards between adjacent pits
11.5 Access to pits
11.6 Lighting of pits
11.7 Pit stop switch
11.8 Minimum depth of pits
11.9 Dryness of pits
11.10 Power point in pit
11.11 Pits not extending to the lowest floor of the building
11.12 Safe access to elevated equipment in the lift pit and on the underside of the car
12 LIFTWELL ENCLOSURES
12.1 Construction
12.2 Strength
12.3 Flushness of liftwell
12.4 Piping etc.
12.5 Observation lifts
13 CAR AND LANDING DOORS
13.1 Doors required
13.2 Types of doors allowed
13.3 Construction of doors
13.4 Manually operated doors
13.5 Power operation required
13.6 Requirements for vision panels
13.7 Vertically sliding doors
13.8 Horizontally sliding doors
14 LOCKING DEVICES AND SWITCHES FOR CAR AND LANDING DOORS
14.1 Car doors
14.2 Maximum landing zones
14.3 Landing doors
14.4 Requirements for door locks
14.5 Emergency opening arrangements for landing doors
15 CLEARANCE IN LIFTWELLS AND ENCLOSURES
15.1 Clearances at car openings
15.2 Clearance between cars, counterweights and liftwell enclosures
16 HOISTING ROPES
16.1 Materials
16.2 Method of measuring ropes
16.3 Size of ropes
16.4 Minimum number of ropes
16.5 Minimum rope factor of safety
16.6 Wire rope data plate
16.7 Lengthening or repairing of wire ropes
16.8 Replacement of hoist ropes
17 ROPE ATTACHMENTS AND FITTINGS
17.1 Securing of wire hoist ropes to winding drums
17.2 Attachment of ropes to cars, counterweights and the overhead structure
17.3 Eyebolts
17.4 Methods of splicing eyes in ropes
17.5 Sockets
17.6 Equalizers
18 SHEAVES AND DRUMS
18.1 Grooving of sheaves and drums
18.2 Rope retainer guards
18.3 Ratio of rope diameter to sheave diameter
18.4 Mechanical design
18.5 Sheave guards – Multiple roping
18.6 Guarding of nip-points
19 COUNTERWEIGHTS
19.1 Counterweight construction
19.2 Factor of safety
19.3 Guarding of counterweights
19.4 Counterweight guide shoes
19.5 Lift car as counterweight
20 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
20.1 Guide rails required
20.2 Guide rail material
20.3 Requirements for steel
20.4 Requirements for materials other than steel
20.5 Guide rail section
20.6 Stresses and deflections in steel guide rails
20.7 Stresses and deflections in counterweight guide rails
20.8 Intermediate tie brackets for counterweight guide rails
20.9 Guide rail guiding surfaces
20.10 Guide rail joints and fish plates
20.11 Overall length of guide rails
20.12 Guide rail brackets and building supports
20.13 Fastenings of guide rails to rail brackets
20.14 Guide rail gauge tolerance
20.15 Guide shoes
20.16 Roller guide shoes
21 RATED CAR CAPACITY AND CLASSES OF LOADING
21.1 Rated loading capacity for lift cars
21.2 Cars fitted with false walls or partitions
21.3 Notices in lift cars
22 CAR CONSTRUCTION
22.1 Car frames required
22.2 Guiding members
22.3 Design of car frames and guiding members
22.4 Underslung car frames
22.5 Car platforms
22.6 Materials for car frames and platform frames
22.7 Requirements for steel
22.8 Requirements for metals other than steel
22.9 Car frame and platform connections
22.10 Strength of car frames and conditions of loading
22.11 Hoist rope hitch plates
22.12 Car frame with crosshead sheaves
22.13 Attachments to car frame
22.14 Lift car roof
22.15 Car roof trapdoor
22.16 Extent of car enclosures
22.17 Securing of car walls
22.18 Observation lift cars
22.19 Headroom for cars and entrances
22.20 Lighting of lift cars
22.21 Protection of emergency lighting source
22.22 Deflection of car walls
22.23 Car aprons
22.24 Materials for car enclosures
22.25 Ventilation of lift cars
22.26 Use of annealed glass in lift cars
22.27 Lining of lift cars
23 POWER OPERATION OF CAR AND LANDING DOORS
23.1 Type of doors permitted
23.2 Manual opening of power doors
23.3 Power opening of doors
23.4 Power closing of doors
23.5 Kinetic energy and force limitations for power door operations (horizontal)
23.6 Passenger protective device – horizontal doors
23.7 Vertically sliding doors – maximum closing speeds
24 ELECTRICAL INSTALLATION (GENERAL, EARTHING AND WIRING)
24.1 Stop switch on top of car
24.2 General purpose power point on top of car
24.3 Clearances around controllers
24.4 Electrical supply
24.5 Emergency electrical supply
24.6 Identification of switchgear
24.7 Position of circuit-breakers
24.8 Wiring
24.9 Travelling cables to cars
24.10 Lift circuit diagram in machine room
25 OPERATING DEVICES AND CONTROL EQUIPMENT
25.1 Types of operating devices
25.2 Operation by car switch
25.3 Operating devices on roof of car for inspection service
25.4 Operation in levelling or manual inching zone
25.5 Car control buttons
25.6 Operation of lifts under fire or other emergency conditions (excluding earthquakes)
25.7 Detection of fire in machine rooms (including sheave rooms and governor rooms containing electronic equipment) and liftwells
25.8 Operation of lifts under earthquake conditions
26 ELECTRICAL PROTECTIVE DEVICES
26.1 Protective devices – General
26.2 Phase-reversal and failure protection
26.3 Release and application of driving-machine brakes
26.4 Control and operating circuit requirements
26.5 Use of rectifying units to supply power to direct current lift motors
26.6 Overload weighing devices
26.7 Stop switches – General requirements
27 TERMINAL STOPPING DEVICES
27.1 General requirements
27.2 Normal limit switches (slow down and stopping)
27.3 Overtravel limit switches
27.4 Emergency terminal speed limiting devices
28 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES, ETC.
28.1 Position indicator in car
28.2 Emergency communication and alarm
28.3 Numbering of lifts
29 SAFETY GEAR – CAR AND COUNTERWEIGHT
29.1 Where required and location
29.2 Safety gear – Identification and classification of types
29.3 Multiple safety gear
29.4 Function and stopping distance of safety gear
29.5 Counterweight safety gear
29.6 Safety gear not to stop ascending car or counterweight
29.7 Safety gear switch
29.8 Limits of use of safety gear
29.9 Application and release of safety gear
29.10 Minimum permissible clearance between rail gripping faces of safety gear parts
29.11 Type C safety gear – Rope pull-out
29.12 Minimum factors of safety and stresses of safety gear parts and rope connections
29.13 Corrosion-resistant bearings in safety gear and safety operating mechanisms
29.14 Governor rope tension
29.15 Rail lubricants
29.16 Compensation sheave lock-down
30 SPEED GOVERNORS
30.1 Location and requirements of governors
30.2 Mechanical tripping speeds for governors
30.3 Governor switches
30.4 Sealing and painting of speed governors
30.5 Governor ropes
30.6 Rope grip jaws of speed governors (where fitted)
30.7 Design of speed governor sheaves and traction between rope and sheave
30.8 Speed governor marking plate
30.9 Guarding of nip-points
PART 3 ELECTROHYDRAULIC LIFTS
31 GENERAL
31.1 Scope
31.2 Drawings and particulars
31.3 Maximum permissible speed
31.4 Cylinder supports and foundations
31.5 Pressure test after erection
31.6 Devices to hold car above lowest floor
31.7 Materials, components and equipment complying with approved Standards
32 MACHINE ROOMS AND MACHINERY SPACES
32.1 Machine rooms
33 ACCESS TO OVERHEAD SHEAVES
34 HYDRAULIC DRIVING MACHINES
34.1 Type
34.2 Rams
34.3 Cylinders
35 HYDRAULIC LINES
35.1 General
35.2 Rigid lines
35.3 Hoses
36 VALVES
36.1 Working pressures
36.2 Pump relief valve
36.3 Check valve
36.4 Door lock valve
36.5 Flow restriction valve
36.6 Manual lowering
37 TANKS
37.1 Material
37.2 Capacity
37.3 Means for checking liquid level
37.4 Covers and venting
37.5 Factor of safety
37.6 Fittings and protection
38 DIRECT-ACTING ELECTROHYDRAULIC LIFTS – CLEARANCES FOR CARS AND COUNTERWEIGHTS
38.1 Clearance at bottom of car
38.2 Car buffer clearance
38.3 Top overtravel
38.4 Clearances above car (with ram fully extended against its stop
38.5 Clearance at top of flying counterweight
38.6 Clearance at bottom of flying counterweight
39 SUSPENDED ELECTROHYDRAULIC LIFTS – CLEARANCES FOR CARS AND COUNTERWEIGHTS
39.1 Clearance at bottom of car
39.2 Car buffer clearance
39.3 Compressed ram clearance
39.4 Clearance of car at top landing
39.5 Top overtravel
39.6 Clearance at top of flying counterweight
39.7 Clearance at bottom of flying counterweight
40 CAR AND COUNTERWEIGHT BUFFERS
40.1 Car buffers
40.2 Counterweight buffers
40.3 Flying counterweight buffers
41 PITS
41.1 General requirements
41.2 Pits not extending to lowest floor of building
42 LIFTWELL ENCLOSURES
43 LANDING DOORS
44 LOCKING OF LANDING DOORS
44.1 General requirements
44.2 Door locks
45 CLEARANCES IN LIFTWELLS AND ENCLOSURES
46 PIPING ETC. IN MACHINE ROOMS OR LIFTWELLS
47 SUSPENSION ROPES
48 ROPE ATTACHMENTS AND FITTINGS
49 SHEAVES AND PULLEYS
50 COUNTERWEIGHTS AND FLYING COUNTERWEIGHTS
50.1 General requirements
50.2 Mass of flying counterweight
51 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
52 RATED CAR CAPACITY
53 CAR CONSTRUCTION
53.1 General requirements
53.2 Car frames for direct-acting lifts
54 CAR DOORS
55 POWER OPERATION OF CAR AND LANDING DOORS
56 ELECTRICAL INSTALLATION
57 PRECAUTIONS IN WIRING
58 OPERATING DEVICES AND CONTROL EQUIPMENT
59 ELECTRICAL PROTECTIVE DEVICES
59.1 General requirements
59.2 Top overtravel limit switch
59.3 Anti-creep levelling device
59.4 Normal limit switches
59.5 Door lock valve
59.6 Flying counterweight overtravel limit switch
60 TERMINAL STOPPING DEVICES
60.1 General requirements
60.2 Normal limit switches (slowing down and stopping)
60.3 Top overtravel limit switches
60.4 Anti-creep levelling device
60.5 Flying counterweight bottom overtravel limit switch
61 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES, ETC
62 CAR AND COUNTERWEIGHT SAFETY GEAR
63 SPEED GOVERNORS
64 CAR FRAME AND PLATFORM STRESSES AND DEFLECTIONS FOR DIRECT-ACTING ELECTROHYDRAULIC LIFTS
64.1 General
64.2 Bow members
64.3 Buffer members
64.4 Platform members
64.5 Sling members
PART 4 TESTS
65 SCOPE
66 FIRST INSPECTION TESTING OF SAFETY GEAR
66.1 Application
66.2 General test conditions
66.3 Speed test at normal speed
66.4 Speed tests at governor tripping speed
66.5 Speed test requirements
66.6 Inertia application test for Type A safety gear
66.7 Broken suspension rope test for Type A safety gear
67 FIRST INSPECTION TESTING OF OIL BUFFERS
67.1 Application
67.2 Oil level test
67.3 Plunger return tests
67.4 Load and speed tests
68 FIRST INSPECTION TESTING OF ELECTROHYDRAULIC EQUIPMENT
69 ROUTINE INSPECTION, ADJUSTMENT AND TESTING OF SAFETY GEAR
69.1 Periodic inspection and tests
69.2 Tests following any alteration affecting safety gear
PART 5 REQUIREMENTS FOR PEOPLE WITH DISABILITIES
70 REQUIREMENTS FOR LIFTS ON ACCESS ROUTES FOR PEOPLE WITH DISABILITIES
70.1 Levelling
70.2 Lift car size
70.3 Car and landing doors
70.4 Lift controls
70.5 Lift indicators
70.6 Support rails
APPENDIX
A MEDIUM DENSITY POLYETHYLENE (MDPE)
B SEISMIC ZONES
C NEW ZEALAND BUILDING CODE (NZBC) REQUIREMENTS FOR ASSOCIATED BUILDING WORK
D QUALITY OF DRAWINGS AND PARTICULARS
Table
2.1 – Risk factors
10.1 – Types of stops and buffers
10.4 – Minimum stroke of spring buffers
10.5 – Minimum stroke of oil buffers
16.5 – Minimum factors of safety for hoisting wire ropes
18.1 – Groove seats of sheaves and drums
20.5 – Guide rails – Nominal masses and dimensions
20.10 – Minimum thickness of fish plates and minimum diameter of fastening bolts
20.13 – Minimum size of rail-fastening bolts
21.1 – Inside net platform areas for typical minimum rated loads
28.4 – Numbering of lifts
29.4 – Type B safety gear stopping distances
30.2 – Maximum speeds at which car speed governor trips and governor over-speed switch operates
30.7 – Minimum ratio of governor sheave to rope diameter
31.3 – Maximum speed in down direction
35.3.5 – Minimum inside radius of bends
38.3 – Minimum top overtravel
40.1(a) – Types of stops and buffers for cars
40.1(b) – Minimum stroke of spring buffers for cars
40.1(c) – Minimum stroke of oil buffers for cars
Figure
9.1.1 – Bottom car clearances – Types A, B and C safety gear
9.1.2 – Clearances below the car – Type D safety gear
9.3.1 – Clearances above the car for rope suspended lifts and below the counterweight
9.3.2 – Clearance above the car where overhead beam protrudes below liftwell ceiling
9.3.3 – Clearances above the car where overload diverter sheave protrudes below liftwell ceiling
9.5 – Clearances above the counterweight
20.5 – T-section rail guide
20.8 – Intermediate tie bracket for counterweight guide rails
20.16 – Lift counterweight and car frame anchorage – typical arrangement
21.1 – Inside net platform areas for passenger lifts
25.1 – Major component displacement detector
29.4.1 – Drive-in acceptance tests – permitted stopping distances for Type B safety gear
29.4.2 – Runaway acceptance tests – permitted stopping distances for Type B safety gear
29.4.3 – Minimum and maximum permitted stopping distances of car and counterweight with wedge clamp Type C safety gear
30.2 – Maximum governor tripping speeds
34.2.3.2(a) – Single stage ram and cylinder
34.2.3.2(b) – Telescopic ram and cylinder without external head guidance
34.2.3.2(c) – Telescopic ram and cylinder
34.3.2 – Cylinder wall thickness
34.3.4.2 – Cylinder ends
35.3.5 (a) – Recommended practices for positioning hydraulic hoses
35.3.5 (b) – Prohibited practices for positioning hydraulic hoses
70.4.1 – Control panel for passenger carrying lifts
B1 – Seismic zones
C1 – Sign identifying potential hazard
STANDARDS COUNCIL APPROVAL
- C1
- C2
- D2
- C3
- C4
- C5
- F6
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References
Code of practice for glazing in buildings - Human impact safety requirements
Specification for rivets for general engineering purposes
Specification for hot-rolled structural steel sections - Hollow sections
Related Information
Building Code Compliance Schedule Handbook
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: SS 8/1
Citation context:Building Code Compliance Document D2
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS1
Citation context:Building Code Compliance Document C
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS2 (Note - AS3, AS4, AS5, AS6 are Revoked)
Citation context:Building Code Compliance Document F6
Ministry: Ministry of Business, Innovation, and Employment - Building Systems Performance (BSP)
Section: AS1
Citation context:Best Practice Guidelines for Mobile Elevating Work Platforms
Ministry: WorkSafe New Zealand
Section: 1.0
Citation context:These guidelines do not apply to the following:... ...Lifts or elevators (refer to New Zealand Standard NZS 4332: Non-Domestic Passenger and Goods Lifts).
Best Practice Guidelines for Mobile Elevating Work Platforms
Ministry: WorkSafe New Zealand
Section: 7.10
Citation context:PUBLICATIONS AND REFERENCE MATERIAL:... ...Non-domestic Passenger and Goods Lifts NZS 4332...
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COMMITTEE REPRESENTATION
ACKNOWLEDGEMENT
© COPYRIGHT
CONTENTS
RELATED DOCUMENTS
FOREWORD
REVIEW OF STANDARDS
PART 1 GENERAL REQUIREMENTS
1 SCOPE
2 GENERAL
2.1 Earthquake loadings
2.2 Drawings and particulars of the lift installation
2.3 Lift security system
2.4 Building security system
2.5 Maintenance and inspection
3 DEFINITIONS
4 MATERIALS AND METHODS OF CONSTRUCTION
4.1 Materials
4.2 Steel (other than castings)
4.3 Castings
4.4 Timber
4.5 Concrete
4.6 Welding
4.7 Glass
PART 2 ELECTRIC LIFTS: PASSENGER AND GOODS
5 GENERAL
5.1 Scope
5.2 Electric lift particulars to be documented
6 MACHINERY AND SHEAVE BEAMS, SUPPORTS AND FOUNDATIONS
6.1 Floors, beams and supports required
6.2 Loads on machinery and sheave beams, floors or foundations and their supports
6.3 Securing of equipment to the supporting structures
6.4 Bolts, studs and washers for supporting and overhead structures, car frames, counterweights and guide rail supports
6.5 Calculated deflections of machinery, sheave and hitch beams and their supports
6.6 Strength of building construction
7 MACHINE ROOMS
7.1 Construction
7.2 Equipment in machine room
7.3 Limitations to the use of the machine room
7.4 Machine room entrances
7.5 Means of access to machine rooms
7.6 Headroom in machine room
7.7 Machine room equipment – Accessibility and clearance
7.8 Loading on machine room floors (including platform and secondary floors)
7.9 Hatches in machine rooms
7.10 Protection of floor openings
7.11 Difference in floor levels in machine rooms
7.12 Machine room stop switch
7.13 Platforms (other than machine room floors) affording access to overhead sheaves and other equipment
7.14 Lighting of machine rooms (including platforms and secondary floors)
7.15 Protection of machine rooms against weather
7.16 General purpose power point in the machine room
7.17 Ventilation of machine rooms
7.18 Machine room lifting beams
8 MACHINES
8.1 General
8.2 Types of driving machines
8.3 Assumed loadings
8.4 Factors of safety
8.5 Traction sheaves and drums
8.6 Bolts transmitting torque
8.7 Threads for studs or screws in tension
8.8 Shafts
8.9 Gears
8.10 Bearings
8.11 Brakes
8.12 Flat belt and chain drives
8.13 V-Belt driven machines
8.14 Maximum speed
8.15 Rope traction
8.16 Emergency hand winding
9 TOP AND BOTTOM CLEARANCES FOR CARS AND COUNTERWEIGHTS
9.1 Clearance at bottom of car
9.2 Car buffer clearance
9.3 Clearance of car at top landing
9.4 Counterweight buffer clearance
9.5 Clearance at top of counterweight
9.6 Clearance at bottom of counterweight
10 BUFFERS AND STOPS
10.1 Provision of buffers
10.2 Location of buffers
10.3 Construction and requirements for solid buffers
10.4 Construction and requirements for spring buffers
10.5 Construction and requirements for oil buffers
10.6 Buffer oil requirements
10.7 Permanent stops for drum drive lifts
11 PITS
11.1 Provision of pits
11.2 Pit floors
11.3 Pit maintenance
11.4 Guards between adjacent pits
11.5 Access to pits
11.6 Lighting of pits
11.7 Pit stop switch
11.8 Minimum depth of pits
11.9 Dryness of pits
11.10 Power point in pit
11.11 Pits not extending to the lowest floor of the building
11.12 Safe access to elevated equipment in the lift pit and on the underside of the car
12 LIFTWELL ENCLOSURES
12.1 Construction
12.2 Strength
12.3 Flushness of liftwell
12.4 Piping etc.
12.5 Observation lifts
13 CAR AND LANDING DOORS
13.1 Doors required
13.2 Types of doors allowed
13.3 Construction of doors
13.4 Manually operated doors
13.5 Power operation required
13.6 Requirements for vision panels
13.7 Vertically sliding doors
13.8 Horizontally sliding doors
14 LOCKING DEVICES AND SWITCHES FOR CAR AND LANDING DOORS
14.1 Car doors
14.2 Maximum landing zones
14.3 Landing doors
14.4 Requirements for door locks
14.5 Emergency opening arrangements for landing doors
15 CLEARANCE IN LIFTWELLS AND ENCLOSURES
15.1 Clearances at car openings
15.2 Clearance between cars, counterweights and liftwell enclosures
16 HOISTING ROPES
16.1 Materials
16.2 Method of measuring ropes
16.3 Size of ropes
16.4 Minimum number of ropes
16.5 Minimum rope factor of safety
16.6 Wire rope data plate
16.7 Lengthening or repairing of wire ropes
16.8 Replacement of hoist ropes
17 ROPE ATTACHMENTS AND FITTINGS
17.1 Securing of wire hoist ropes to winding drums
17.2 Attachment of ropes to cars, counterweights and the overhead structure
17.3 Eyebolts
17.4 Methods of splicing eyes in ropes
17.5 Sockets
17.6 Equalizers
18 SHEAVES AND DRUMS
18.1 Grooving of sheaves and drums
18.2 Rope retainer guards
18.3 Ratio of rope diameter to sheave diameter
18.4 Mechanical design
18.5 Sheave guards – Multiple roping
18.6 Guarding of nip-points
19 COUNTERWEIGHTS
19.1 Counterweight construction
19.2 Factor of safety
19.3 Guarding of counterweights
19.4 Counterweight guide shoes
19.5 Lift car as counterweight
20 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
20.1 Guide rails required
20.2 Guide rail material
20.3 Requirements for steel
20.4 Requirements for materials other than steel
20.5 Guide rail section
20.6 Stresses and deflections in steel guide rails
20.7 Stresses and deflections in counterweight guide rails
20.8 Intermediate tie brackets for counterweight guide rails
20.9 Guide rail guiding surfaces
20.10 Guide rail joints and fish plates
20.11 Overall length of guide rails
20.12 Guide rail brackets and building supports
20.13 Fastenings of guide rails to rail brackets
20.14 Guide rail gauge tolerance
20.15 Guide shoes
20.16 Roller guide shoes
21 RATED CAR CAPACITY AND CLASSES OF LOADING
21.1 Rated loading capacity for lift cars
21.2 Cars fitted with false walls or partitions
21.3 Notices in lift cars
22 CAR CONSTRUCTION
22.1 Car frames required
22.2 Guiding members
22.3 Design of car frames and guiding members
22.4 Underslung car frames
22.5 Car platforms
22.6 Materials for car frames and platform frames
22.7 Requirements for steel
22.8 Requirements for metals other than steel
22.9 Car frame and platform connections
22.10 Strength of car frames and conditions of loading
22.11 Hoist rope hitch plates
22.12 Car frame with crosshead sheaves
22.13 Attachments to car frame
22.14 Lift car roof
22.15 Car roof trapdoor
22.16 Extent of car enclosures
22.17 Securing of car walls
22.18 Observation lift cars
22.19 Headroom for cars and entrances
22.20 Lighting of lift cars
22.21 Protection of emergency lighting source
22.22 Deflection of car walls
22.23 Car aprons
22.24 Materials for car enclosures
22.25 Ventilation of lift cars
22.26 Use of annealed glass in lift cars
22.27 Lining of lift cars
23 POWER OPERATION OF CAR AND LANDING DOORS
23.1 Type of doors permitted
23.2 Manual opening of power doors
23.3 Power opening of doors
23.4 Power closing of doors
23.5 Kinetic energy and force limitations for power door operations (horizontal)
23.6 Passenger protective device – horizontal doors
23.7 Vertically sliding doors – maximum closing speeds
24 ELECTRICAL INSTALLATION (GENERAL, EARTHING AND WIRING)
24.1 Stop switch on top of car
24.2 General purpose power point on top of car
24.3 Clearances around controllers
24.4 Electrical supply
24.5 Emergency electrical supply
24.6 Identification of switchgear
24.7 Position of circuit-breakers
24.8 Wiring
24.9 Travelling cables to cars
24.10 Lift circuit diagram in machine room
25 OPERATING DEVICES AND CONTROL EQUIPMENT
25.1 Types of operating devices
25.2 Operation by car switch
25.3 Operating devices on roof of car for inspection service
25.4 Operation in levelling or manual inching zone
25.5 Car control buttons
25.6 Operation of lifts under fire or other emergency conditions (excluding earthquakes)
25.7 Detection of fire in machine rooms (including sheave rooms and governor rooms containing electronic equipment) and liftwells
25.8 Operation of lifts under earthquake conditions
26 ELECTRICAL PROTECTIVE DEVICES
26.1 Protective devices – General
26.2 Phase-reversal and failure protection
26.3 Release and application of driving-machine brakes
26.4 Control and operating circuit requirements
26.5 Use of rectifying units to supply power to direct current lift motors
26.6 Overload weighing devices
26.7 Stop switches – General requirements
27 TERMINAL STOPPING DEVICES
27.1 General requirements
27.2 Normal limit switches (slow down and stopping)
27.3 Overtravel limit switches
27.4 Emergency terminal speed limiting devices
28 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES, ETC.
28.1 Position indicator in car
28.2 Emergency communication and alarm
28.3 Numbering of lifts
29 SAFETY GEAR – CAR AND COUNTERWEIGHT
29.1 Where required and location
29.2 Safety gear – Identification and classification of types
29.3 Multiple safety gear
29.4 Function and stopping distance of safety gear
29.5 Counterweight safety gear
29.6 Safety gear not to stop ascending car or counterweight
29.7 Safety gear switch
29.8 Limits of use of safety gear
29.9 Application and release of safety gear
29.10 Minimum permissible clearance between rail gripping faces of safety gear parts
29.11 Type C safety gear – Rope pull-out
29.12 Minimum factors of safety and stresses of safety gear parts and rope connections
29.13 Corrosion-resistant bearings in safety gear and safety operating mechanisms
29.14 Governor rope tension
29.15 Rail lubricants
29.16 Compensation sheave lock-down
30 SPEED GOVERNORS
30.1 Location and requirements of governors
30.2 Mechanical tripping speeds for governors
30.3 Governor switches
30.4 Sealing and painting of speed governors
30.5 Governor ropes
30.6 Rope grip jaws of speed governors (where fitted)
30.7 Design of speed governor sheaves and traction between rope and sheave
30.8 Speed governor marking plate
30.9 Guarding of nip-points
PART 3 ELECTROHYDRAULIC LIFTS
31 GENERAL
31.1 Scope
31.2 Drawings and particulars
31.3 Maximum permissible speed
31.4 Cylinder supports and foundations
31.5 Pressure test after erection
31.6 Devices to hold car above lowest floor
31.7 Materials, components and equipment complying with approved Standards
32 MACHINE ROOMS AND MACHINERY SPACES
32.1 Machine rooms
33 ACCESS TO OVERHEAD SHEAVES
34 HYDRAULIC DRIVING MACHINES
34.1 Type
34.2 Rams
34.3 Cylinders
35 HYDRAULIC LINES
35.1 General
35.2 Rigid lines
35.3 Hoses
36 VALVES
36.1 Working pressures
36.2 Pump relief valve
36.3 Check valve
36.4 Door lock valve
36.5 Flow restriction valve
36.6 Manual lowering
37 TANKS
37.1 Material
37.2 Capacity
37.3 Means for checking liquid level
37.4 Covers and venting
37.5 Factor of safety
37.6 Fittings and protection
38 DIRECT-ACTING ELECTROHYDRAULIC LIFTS – CLEARANCES FOR CARS AND COUNTERWEIGHTS
38.1 Clearance at bottom of car
38.2 Car buffer clearance
38.3 Top overtravel
38.4 Clearances above car (with ram fully extended against its stop
38.5 Clearance at top of flying counterweight
38.6 Clearance at bottom of flying counterweight
39 SUSPENDED ELECTROHYDRAULIC LIFTS – CLEARANCES FOR CARS AND COUNTERWEIGHTS
39.1 Clearance at bottom of car
39.2 Car buffer clearance
39.3 Compressed ram clearance
39.4 Clearance of car at top landing
39.5 Top overtravel
39.6 Clearance at top of flying counterweight
39.7 Clearance at bottom of flying counterweight
40 CAR AND COUNTERWEIGHT BUFFERS
40.1 Car buffers
40.2 Counterweight buffers
40.3 Flying counterweight buffers
41 PITS
41.1 General requirements
41.2 Pits not extending to lowest floor of building
42 LIFTWELL ENCLOSURES
43 LANDING DOORS
44 LOCKING OF LANDING DOORS
44.1 General requirements
44.2 Door locks
45 CLEARANCES IN LIFTWELLS AND ENCLOSURES
46 PIPING ETC. IN MACHINE ROOMS OR LIFTWELLS
47 SUSPENSION ROPES
48 ROPE ATTACHMENTS AND FITTINGS
49 SHEAVES AND PULLEYS
50 COUNTERWEIGHTS AND FLYING COUNTERWEIGHTS
50.1 General requirements
50.2 Mass of flying counterweight
51 GUIDES FOR LIFT CARS AND COUNTERWEIGHTS
52 RATED CAR CAPACITY
53 CAR CONSTRUCTION
53.1 General requirements
53.2 Car frames for direct-acting lifts
54 CAR DOORS
55 POWER OPERATION OF CAR AND LANDING DOORS
56 ELECTRICAL INSTALLATION
57 PRECAUTIONS IN WIRING
58 OPERATING DEVICES AND CONTROL EQUIPMENT
59 ELECTRICAL PROTECTIVE DEVICES
59.1 General requirements
59.2 Top overtravel limit switch
59.3 Anti-creep levelling device
59.4 Normal limit switches
59.5 Door lock valve
59.6 Flying counterweight overtravel limit switch
60 TERMINAL STOPPING DEVICES
60.1 General requirements
60.2 Normal limit switches (slowing down and stopping)
60.3 Top overtravel limit switches
60.4 Anti-creep levelling device
60.5 Flying counterweight bottom overtravel limit switch
61 INDICATORS, ANNUNCIATORS, ALARMS, TELEPHONES, ETC
62 CAR AND COUNTERWEIGHT SAFETY GEAR
63 SPEED GOVERNORS
64 CAR FRAME AND PLATFORM STRESSES AND DEFLECTIONS FOR DIRECT-ACTING ELECTROHYDRAULIC LIFTS
64.1 General
64.2 Bow members
64.3 Buffer members
64.4 Platform members
64.5 Sling members
PART 4 TESTS
65 SCOPE
66 FIRST INSPECTION TESTING OF SAFETY GEAR
66.1 Application
66.2 General test conditions
66.3 Speed test at normal speed
66.4 Speed tests at governor tripping speed
66.5 Speed test requirements
66.6 Inertia application test for Type A safety gear
66.7 Broken suspension rope test for Type A safety gear
67 FIRST INSPECTION TESTING OF OIL BUFFERS
67.1 Application
67.2 Oil level test
67.3 Plunger return tests
67.4 Load and speed tests
68 FIRST INSPECTION TESTING OF ELECTROHYDRAULIC EQUIPMENT
69 ROUTINE INSPECTION, ADJUSTMENT AND TESTING OF SAFETY GEAR
69.1 Periodic inspection and tests
69.2 Tests following any alteration affecting safety gear
PART 5 REQUIREMENTS FOR PEOPLE WITH DISABILITIES
70 REQUIREMENTS FOR LIFTS ON ACCESS ROUTES FOR PEOPLE WITH DISABILITIES
70.1 Levelling
70.2 Lift car size
70.3 Car and landing doors
70.4 Lift controls
70.5 Lift indicators
70.6 Support rails
APPENDIX
A MEDIUM DENSITY POLYETHYLENE (MDPE)
B SEISMIC ZONES
C NEW ZEALAND BUILDING CODE (NZBC) REQUIREMENTS FOR ASSOCIATED BUILDING WORK
D QUALITY OF DRAWINGS AND PARTICULARS
Table
2.1 – Risk factors
10.1 – Types of stops and buffers
10.4 – Minimum stroke of spring buffers
10.5 – Minimum stroke of oil buffers
16.5 – Minimum factors of safety for hoisting wire ropes
18.1 – Groove seats of sheaves and drums
20.5 – Guide rails – Nominal masses and dimensions
20.10 – Minimum thickness of fish plates and minimum diameter of fastening bolts
20.13 – Minimum size of rail-fastening bolts
21.1 – Inside net platform areas for typical minimum rated loads
28.4 – Numbering of lifts
29.4 – Type B safety gear stopping distances
30.2 – Maximum speeds at which car speed governor trips and governor over-speed switch operates
30.7 – Minimum ratio of governor sheave to rope diameter
31.3 – Maximum speed in down direction
35.3.5 – Minimum inside radius of bends
38.3 – Minimum top overtravel
40.1(a) – Types of stops and buffers for cars
40.1(b) – Minimum stroke of spring buffers for cars
40.1(c) – Minimum stroke of oil buffers for cars
Figure
9.1.1 – Bottom car clearances – Types A, B and C safety gear
9.1.2 – Clearances below the car – Type D safety gear
9.3.1 – Clearances above the car for rope suspended lifts and below the counterweight
9.3.2 – Clearance above the car where overhead beam protrudes below liftwell ceiling
9.3.3 – Clearances above the car where overload diverter sheave protrudes below liftwell ceiling
9.5 – Clearances above the counterweight
20.5 – T-section rail guide
20.8 – Intermediate tie bracket for counterweight guide rails
20.16 – Lift counterweight and car frame anchorage – typical arrangement
21.1 – Inside net platform areas for passenger lifts
25.1 – Major component displacement detector
29.4.1 – Drive-in acceptance tests – permitted stopping distances for Type B safety gear
29.4.2 – Runaway acceptance tests – permitted stopping distances for Type B safety gear
29.4.3 – Minimum and maximum permitted stopping distances of car and counterweight with wedge clamp Type C safety gear
30.2 – Maximum governor tripping speeds
34.2.3.2(a) – Single stage ram and cylinder
34.2.3.2(b) – Telescopic ram and cylinder without external head guidance
34.2.3.2(c) – Telescopic ram and cylinder
34.3.2 – Cylinder wall thickness
34.3.4.2 – Cylinder ends
35.3.5 (a) – Recommended practices for positioning hydraulic hoses
35.3.5 (b) – Prohibited practices for positioning hydraulic hoses
70.4.1 – Control panel for passenger carrying lifts
B1 – Seismic zones
C1 – Sign identifying potential hazard
STANDARDS COUNCIL APPROVAL
- C1
- C2
- D2
- C3
- C4
- C5
- F6
Previous versions
NZS 4332:1997
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