AS 3300-1996

1 - AS 3300-1996/NZS 6300:1996 APPROVAL AND TEST SPECIFICATION-GENERAL REQUIREMENTS FOR HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES
4 - PREFACE
6 - CONTENTS
13 - 1 SCOPE AND APPLICATION
13 - 1.1 Interference suppression
14 - 2 DEFINITIONS
14 - 2.1 General
14 - 2.2 Specific definitions
14 - 2.2.1 Rated voltage
14 - 2.2.2 Rated voltage range
15 - 2.2.3 Working voltage
15 - 2.2.4 Rated input
15 - 2.2.5 Rated current
15 - 2.2.6 Rated frequency
15 - 2.2.7 Rated frequency range
15 - 2.2.8 Rated capacity
15 - 2.2.9 Detachable flexible cable or cord
15 - 2.2.10 Power supply cord
15 - 2.2.11 Supply leads
15 - 2.2.12 Basic insulation
16 - 2.2.13 Supplementary insulation
16 - 2.2.14 Double insulation
16 - 2.2.15 Reinforced insulation
16 - 2.2.16 Class O appliance
16 - 2.2.17 Class OI appliance
16 - 2.2.18 Class I appliance
16 - 2.2.19 Class II appliance
17 - 2.2.20 Class III appliance
17 - 2.2.21 Extra-low voltage
17 - 2.2.22 Safety extra-low voltage supply
17 - 2.2.23 Safety isolating transformer
17 - 2.2.24 Portable appliance
17 - 2.2.25 Hand-held appliance
17 - 2.2.26 Stationary appliance
17 - 2.2.27 Fixed appliance
17 - 2.2.28 Appliance for building-in
18 - 2.2.29 Conditions of adequate heat discharge
18 - 2.2.30 Normal load
18 - 2.2.31 Rated operating time
18 - 2.2.32 Continuous operation
18 - 2.2.33 Short-time operation
18 - 2.2.34 Intermittent operation
18 - 2.3.35 Non-detachable part
18 - 2.3.36 Detachable part
18 - 2.3.37 Thermostat
18 - 2.2.38 Temperature limiter
18 - 2.2.39 Thermal cutout
18 - 2.2.40 Self-resetting thermal cutout
18 - 2.2.41 Thermal cutout, non-self-resetting Type A
18 - 2.2.41A Thermal cutout, non-self-resetting Type B
18 - 2.2.42 Tool
18 - 2.2.43 Creepage distance
19 - 2.2.44 Clearance
19 - 2.2.45 All-pole disconnection
19 - 2.2.46 Visibly glowing heating element
19 - 2.2.47 Accessible part or accessible surface
19 - 2.2.48 Body
19 - 2.2.49 Function and interconnection cable or cord
19 - 2.2.201 Switch-Category 1
19 - 2.2.202 Switch-Category 2
19 - 2.2.203 Switch-Category 3
19 - 2.2.204 Screwless terminal
20 - 3 GENERAL REQUIREMENTS
20 - 3.1 Design and construction
20 - 3.201 Compliance with alternative requirements
20 - 3.202 Direct current component from alternating current appliances
22 - 4 GENERAL NOTES ON TESTS
22 - 4.1 Type of tests
22 - 4.2 Sampling
22 - 4.3 Order of tests
22 - 4.4 Position during tests
22 - 4.5 Temperature
22 - 4.6 Voltage
23 - 4.7 Appliances with alternative heating elements or accessories
23 - 4.8 Appliances with heating elements and motors
23 - 4.9 Appliances with variable setting devices
23 - 4.10 Appliances for building-in
23 - 4.11 Appliances supplied by flexible cable or cord
23 - 4.12 Variation of rating with temperature
23 - 4.13 Normal load
24 - 4.14 Class III appliances
24 - 4.15 Earthing of accessible metal parts
24 - 4.16 Unearthed accessible metal in Class I appliances
24 - 4.17 Appliances operating at safety extra-low voltage
24 - 4.18 Special appliances
24 - 5 RATING
24 - 5.1 Maximum rated voltage
24 - 6 CLASSIFICATION
24 - 6.1 General
24 - 7 MARKING
24 - 7.1 General
25 - 7.2 Appliances for short-time or intermittent operation
25 - 7.3 Detachable heating elements
26 - 7.4 Appliances with adjustable voltage or input ratings
26 - 7.5 Appliances or detachable heating elements with multiple voltage ratings or ranges
26 - 7.6 Symbols
27 - 7.7 Terminals
27 - 7.8 Connection diagram
27 - 7.9 Control switches
27 - 7.10 Positions of regulating devices and switches
27 - 7.11 Adjustable devices
28 - 7.12 Instructions for installation and use
28 - 7.13 Instruction sheets
28 - 7.14 Legibility and durability
29 - 8 PROTECTION AGAINST ELECTRIC SHOCK
29 - 8.1 Construction and enclosure
31 - 8.2 Appliances used in contact with skin or hair
31 - 8.3 Appliances with flexible shafts
31 - 8.4 Conducting liquids
31 - 8.5 Shafts of knobs, handles, levers and the like
31 - 8.6 Handles, knobs and levers held or actuated in normal use
31 - 8.7 Handles continuously held in normal use
32 - 8.8 Capacitors
32 - 8.9 Appliances connected to supply by a plug
32 - 9 STARTING OF MOTOR-OPERATED APPLIANCES
32 - 9.1 General
32 - 9.2 Void
32 - 9.3 Overload protection devices
32 - 10 INPUT AND CURRENT
32 - 10.1 Rated input
33 - 10.2 Motor-operated appliances
33 - 10.3 Heating appliances or detachable heating elements
33 - 11 HEATING
33 - 11.1 Normal use
37 - 11.2 Location or position during tests
38 - 11.3 Determination of temperature
38 - 11.4 Operation of heating appliances during tests
38 - 11.5 Operation of motor-operated appliances during tests
38 - 11.6 Operation of combined appliances during tests
39 - 11.7 Operation time
39 - 11.8 Limits of temperature rise
39 - 11.9 Appliances with cord storage devices
39 - 11.10 Accelerated ageing tests on insulating systems of motor windings
40 - 12 OPERATION UNDER OVERLOAD CONDITIONS OF APPLIANCES WITH HEATING ELEMENTS
40 - 12.1 Normal use
40 - 12.2 Test
41 - 12.3 Additional test
41 - 13 ELECTRICAL INSULATION AND LEAKAGE CURRENT AT OPERATING TEMPERATURE
41 - 13.1 Normal use
41 - 13.2 Leakage current test
43 - 13.3 Electric strength test
44 - 14 RADIO AND TELEVISION INTERFERENCE SUPPRESSION
44 - 14.1 General
44 - 15 MOISTURE RESISTANCE
44 - 15.1 Enclosures
44 - 15.2 Tests of enclosures
45 - 15.3 Effect of spillage
45 - 15.4 Effect of humidity
46 - 16 INSULATION RESISTANCE AND ELECTRICAL STRENGTH
46 - 16.1 General
46 - 16.2 Leakage current test
47 - 16.3 Insulation resistance test
48 - 16.4 Electric strength test
48 - 17 OVERLOAD PROTECTION
48 - 17.1 Appliances incorporating circuits supplied from transformers
49 - 18 ENDURANCE
49 - 18.1 General
50 - 18.2 Operating time
50 - 18.3 Starting
50 - 18.4 Appliances provided with automatic starting
50 - 18.5 Appliances with self-resetting thermal cutouts
51 - 18.6 Test results
51 - 19 ABNORMAL OPERATION
51 - 19.1 General
52 - 19.2 Reduced voltage test
52 - 19.3 Increased voltage Test 1
52 - 19.4 Increased voltage Test 2
52 - 19.5 Increased voltage Test 3
52 - 19.6 Stalled-motor test
54 - 19.7 Appliances with three-phase motors
54 - 19.8 Running overload test
54 - 19.9 Appliances for short-time or intermittent operation
54 - 19.10 Appliances with series motors
54 - 19.11 Test results
55 - 20 STABILITY AND MECHANICAL HAZARDS
55 - 20.1 Stability
56 - 20.2 Mechanical hazards
56 - 21 MECHANICAL STRENGTH
56 - 21.1 General
57 - 21.2 Screwed glands and conduit entries
57 - 21.3 Test for screwed glands
58 - 21.4 Test for conduit entry shoulders
58 - 22 CONSTRUCTION
58 - 22.1 Protection against electric shock
58 - 22.2 Protection against moisture
58 - 22.3 Operation in normal positions
58 - 22.4 Protection against penetration from beneath
58 - 22.5 Appliances with adjustable voltage setting
58 - 22.6 Appliances with adjustable thermostats
58 - 22.7 Location of buttons of non-self-resetting controls
59 - 22.8 Appliances with integral pins
59 - 22.9 Appliances where integral pins are prohibited
59 - 22.10 Removal of parts needed for moisture protection
59 - 22.11 Protection against water
59 - 22.12 Fixing of handles, knobs and the like
59 - 22.13 Fixing of components which may require replacement
60 - 22.14 Storage hooks and cord reels for flexible cords
60 - 22.15 Void
60 - 22.16 Use of fibrous or hygroscopic material as insulation
60 - 22.17 Use of driving belts for insulation
61 - 22.18 Segregation of safety extra-low voltage parts and other live parts
61 - 22.19 Use of reinforced insulation
61 - 22.20 Removal and replacement of insulation
61 - 22.21 Use of flexible cord sheath as supplementary insulation inside an appliance
61 - 22.22 Creepage and clearance distances of Class II appliances
62 - 22.23 Supplementary and reinforced insulation
62 - 22.24 Direct contact between live parts and thermal insulation
62 - 22.25 Construction of handles
63 - 22.26 Bare heating elements
63 - 22.27 Sagging of heating conductors
63 - 22.28 Safeguards against excessive pressure
63 - 22.29 Fixing of spacers
63 - 22.30 Corrosion
63 - 22.31 Appliances connected to gas or water pipes and appliances intended to be permanently connected
64 - 22.32 Appliances having compartments liable to be cleaned in normal use
64 - 22.33 Protection of internal parts against oil, grease and the like
64 - 22.34 Brushes, brush-holders and brush-caps
64 - 22.35 Void
64 - 22.36 Use of asbestos
64 - 23 INTERNAL WIRING
64 - 23.1 Mechanical protection
64 - 23.2 Protection and enclosures
64 - 23.3 Use of beads and similar ceramic insulators
65 - 23.4 Wiring which can move
65 - 23.5 Maintenance of creepage distances and clearance
65 - 23.6 Identification of wiring
66 - 23.7 Use of d-type fuse-bases
66 - 23.8 Use of aluminium conductors
66 - 23.9 Use of lead-tin soldering
66 - 24 COMPONENTS
66 - 24.1 General
67 - 24.2 Prohibited components
67 - 24.3 Switches
68 - 24.4 Sockets
68 - 24.5 Connecting devices used for intermediate connections
68 - 24.6 Lampholders
68 - 24.7 Series resistors of glow-discharge lamps
69 - 24.8 Thermal cutouts
69 - 24.9 Switch required for mobile motor-operated appliances
69 - 24.10 Mercury switches
69 - 24.11 Class I appliances with heating elements
69 - 24.201 Electronic regulating devices and switches
69 - 25 SUPPLY CONNECTION AND EXTERNAL FLEXIBLE CABLES AND CORDS
69 - 25.1 Means of connection
69 - 25.2 Provision of connection facility
70 - 25.3 Appliance inlets
70 - 25.4 Power supply cord assembly
70 - 25.5 Fitting of plugs
71 - 25.6 Power supply cord general requirements
71 - 25.7 Moulding-on of cord
72 - 25.8 Insulation at cord entry
72 - 25.9 Inlet bushings
73 - 25.10 Cord guards
74 - 25.11 Cord anchorages
76 - 25.12 Connection facilities
77 - 25.13 Interconnection cables and cords-General
77 - 25.14 Interconnection cables and cords-access to live parts
77 - 26 TERMINALS FOR EXTERNAL CONDUCTORS
77 - 26.1 Types of fixings
78 - 26.2 Terminals for fixed wiring and type X attachments
78 - 26.3 Terminals for Types X, Y and Z attachments
78 - 26.4 Independent clamping means required
78 - 26.5 Clamping of conductors
79 - 26.6 Preparation of conductors for termination
79 - 26.7 Pillar or tunnel terminals
80 - 26.8 Screw terminals
80 - 26.9 Stud terminals
81 - 26.10 Additional test
81 - 26.11 Grouping of terminals
82 - 26.12 Access to terminal devices
82 - 26.13 Terminal devices of appliances with type X attachments
82 - 27 PROVISION FOR EARTHING
82 - 27.1 Where required
82 - 27.2 Earthing terminals-General requirements
83 - 27.3 Earthing connections-General
83 - 27.4 Earthing connections-Resistance to corrosion
83 - 27.5 Resistance of earthing connections
84 - 27.201 Printed conductors
84 - 28 SCREWS AND CONNECTIONS
84 - 28.1 Mechanical strength
86 - 28.2 Engagement of thread
86 - 28.3 Contact pressure of electrical connections
86 - 28.4 Space-threaded and thread-cutting screws
86 - 28.5 Use of screws and rivets
86 - 29 CREEPAGE DISTANCES, CLEARANCES AND DISTANCES THROUGH INSULATION
86 - 29.1 Creepage distances and clearances
89 - 29.2 Minimum insulation thicknesses
90 - 29.3 Terminal clearances for appliances above 25 A
90 - 30 RESISTANCE TO HEAT, FIRE AND TRACKING
90 - 30.1 Resistance to heat of external parts of non-metallic material and insulating material retaining live parts in position
90 - 30.2 Resistance of non-metallic material to fire
91 - 30.3 Void
91 - 30.4 Void
91 - 30.5 Resistance to tracking
91 - 30.201 Solid insulating materials and non-metallic enclosures
91 - 30.201.1 General requirements
91 - 30.201.2 Non-metallic materials
92 - 30.201.3 Attended appliances
92 - 30.201.4 Unattended appliances
93 - 30.201.5 Parts other than enclosures
93 - 31 RESISTANCE TO RUSTING
93 - 31.1 General
94 - 32 RADIATION, TOXICITY AND SIMILAR HAZARDS
101 - APPENDIX A - VOID
101 - APPENDIX B - ELECTRONIC CIRCUITS
101 - B1 SCOPE
101 - B2 DEFINITIONS
101 - B2.101 Electronic components
101 - B2.102 Protective impedance
101 - B4 GENERAL NOTES ON TESTS
101 - B4.1 Type of tests
101 - B4.2 Sampling
101 - B4.101 Perturbations from external sources
101 - B8 PROTECTION AGAINST ELECTRIC SHOCK
101 - B8.1 Construction and enclosure
102 - B8.8 Capacitors
102 - B11 HEATING
102 - B11.8 LIMITS OF TEMPERATURE RISE
102 - B13 ELECTRICAL INSULATION AND LEAKAGE CURRENT AT OPERATING TEMPERATURE
102 - B13.1 Normal use
102 - B16 INSULATION RESISTANCE AND ELECTRIC STRENGTH
102 - B16.1 General
102 - B16.4 Electric strength test
103 - B19 ABNORMAL OPERATION
103 - B19.101 Electronic circuits
103 - B19.102 Fault conditions
104 - B19.103 Application of fault conditions
105 - B19.104 Appliance safety dependent on miniature fuse-links
105 - B22 CONSTRUCTION
105 - B22.18 Segregation of safety extra-low voltage parts and other live parts
105 - B22.19 Use of reinforced insulation
105 - B22.101 Protective impedance
106 - B29 CREEPAGE DISTANCES, CLEARANCES AND DISTANCES THROUGH INSULATION
106 - B29.1 Creepage distances and clearances
106 - B29.2 Minimum insulation thicknesses
106 - B30 RESISTANCE TO HEAT, FIRE AND TRACKING
106 - B30.201 Solid insulating materials and non-metallic enclosures
106 - B30.201.4 Printed circuit boards
108 - APPENDIX C - VOID
108 - APPENDIX D - ALTERNATIVE REQUIREMENTS FOR PROTECTED MOTOR UNITS
109 - APPENDIX E - MEASUREMENT OF CREEPAGE DISTANCES AND CLEARANCES
113 - APPENDIX F - MOTORS NOT ISOLATED FROM THE SUPPLY MAINS AND HAVING BASIC INSULATION NOT DESIGNED FOR THE RATED VOLTAGE OF THE....
113 - F1 SCOPE
113 - F4 GENERAL NOTES ON TEST
113 - F4.18 Special appliances
113 - F5 RATING
113 - F5.1 Maximum rated voltage
113 - F8 PROTECTION AGAINST ELECTRIC SHOCK
113 - F8.1 Construction and enclosure
113 - F11 HEATING
113 - F11.3 Determination of temperature rise
113 - F11.8 Limits of temperature rise
113 - F16 INSULATION RESISTANCE AND ELECTRIC STRENGTH
113 - F16.4 Electric strength test
113 - F19 ABNORMAL OPERATION
113 - F19.1 General
114 - F19.101 Defects
114 - F23 INTERNAL WIRING
114 - F23.101 Class I appliances incorporating a motor supplied by a rectifier
115 - F29 CREEPAGE DISTANCES, CLEARANCES AND DISTANCES THROUGH INSULATION
115 - F29.1 Creepage distances and clearances
116 - APPENDIX G - CIRCUIT FOR MEASURING LEAKAGE CURRENTS
116 - G1 GENERAL
116 - G2 CIRCUIT COMPONENTS
119 - ANNEX A - LIST OF VARIATIONS BETWEEN THIS SPECIFICATION AND IEC 335-1: 1976, SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL.....
129 - ANNEX B - REQUIREMENT FROM THE 1992 EDITION
129 - 30.201 SOLID INSULATING MATERIALS AND NON-METALLIC ENCLOSURES
129 - 30.201.1 General requirements
129 - 30.201.2 Glow-wire tip temperature and duration of test
130 - 30.201.3 Compliance
132 - ANNEX C - SELECTION AND SEQUENCE OF THE TESTS OF CLAUSE 30.201 AS CONTAINED IN THE BODY OF THIS STANDARD

Specifies general safety requirements for household and similar electrical appliances. It is a base Standard which, when combined with a particular standard in the AS 3300/NZS 6300 series, becomes a complete standard for the particular appliance. It is based on IEC 335-1:1976, 2nd edition, including Amendments 1 to 6. It is identical with NZS 6300:1996 and produced as a Joint Australian/New Zealand Standard.

This Standard applies to electric heating appliances and electric motor-operated or magnetically-driven appliances for household and similar purposes.NOTES:1 Appliances not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laypersons in shops, in light industry and on farms, are within the scope of this Standard. Examples of such appliances are appliances for hairdressers, soldering irons, glue pots, sterilizers, infra-red radiation appliances, feed boilers, water pumps and lawn mowers.2 Except in so far as this Standard deals with electric toys, it does not take into account the special hazards which exist in nurseries and other places where there are young children or aged or infirm persons without supervision; in such cases, additional requirements may be necessary.3 This Standard does not apply to -(a) appliances designed exclusively for industrial purposes;(b) appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);(c) separate motors;(d) appliances for high frequency heating except microwave ovens within the scope of AS 3301/NZS 6325;(e) radio and television receiving appliances within the scope of AS/NZS 3250; (f) appliances for medical purposes within the scope of AS/NZS 3200; (g) wires and cables; and (h) accessories.4 Gramophones and similar motor-operated appliances intended to be used in, or in combination with, electronic equipment are tested together with such equipment in accordance with AS/NZS 3250.5 For appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary.6 For appliances intended to be used in tropical countries, special requirements may be necessary.7 Attention is drawn to the fact that in many countries additional requirements are specified by the national health authorities and the national authorities responsible for the protection of labour.

First published as AS 3300-1978.
Second edition 1980.
Third edition 1983.
Fourth edition 1986.
Fifth edition 1988.
Sixth edition 1992.
Seventh edition 1996.