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