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AS/NZS 3260:1993

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Approval and test specification - Safety of information technology equipment including electrical business equipment
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

06-24-2021

Language(s)

English

Published date

01-01-1993

Publisher

Standards Australia

Preview

1 - AS/NZS 3260:1993 APPROVAL AND TEST SPECIFICATION-SAFETY OF INFORMATION TECHNOLOGY EQUIPMENT INCLUDING ELECTRICAL BUSINESS EQU
4 - PREFACE
8 - CONTENTS
18 - FOREWORD
20 - INTRODUCTION
23 - 1 General
23 - 1.1 Scope
23 - 1.1.1 Equi pment covered by thi s standard
25 - 1.1.2 Additional requirements
25 - 1.1.3 Exclusions
26 - 1.2 Definitions
27 - 1.2.1 Equipment electrical ratings
27 - 1.2.2 Operating conditions
28 - 1.2.3 Equipment mobility
28 - 1.2.4 Classes of equipment - Protection against electric shock
29 - 1.2.5 Connection to the supply
29 - 1.2.6 Enclosures
30 - 1.2.7 Accessi bi li ty
30 - 1.2.8 Circuit and circuit characteristics
32 - 1.2.9 Insulation
33 - 1.2.10 Creepage distances and clearances
33 - 1.2.11 Components
34 - 1.2.12 Power di stri buti on
37 - 1.2.13 Flammability
38 - 1.2.14 Miscellaneous
40 - 1.3 General requirements
40 - 1.3.1 Equi pment design and constructi on
40 - 1.3.2 User information
40 - 1.3.3 Classification of equipment
40 - 1.4 General conditions for tests
44 - 1.5 Components
44 - 1.5.1 General
44 - 1.5.2 Evaluation and testing of components
45 - 1.5.3 Transformers
45 - 1.5.4 High voltage components
45 - 1.5.5 Interconnecting cables
45 - 1.5.6 Mains capacitors
45 - 1.6 Power i nterface
45 - 1.6.1 Input current
46 - 1.6.2 Voltage limit of hand-held equipment
46 - 1.6.3 Neutral conductor
46 - 1.6.4 Components in equipment for IT power systems
46 - 1.6.5 Mains supply tolerance
46 - 1.7 Marking and instructions
46 - 1.7.1 Power rating
49 - 1.7.2 Safety instructions
49 - 1.7.3 Short duty cycles
50 - 1.7.4 Mains voltage adjustment
50 - 1.7.5 Power outlets
50 - 1.7.6 Fuses
50 - 1.7.7 Wiring terminals
51 - 1.7.8 Controls and indicators
53 - 1.7.9 Isolation of multiple power sources
53 - 1.7.10 IT power systems
53 - 1.7.11 Protection in building installation
53 - 1.7.12 High leakage current
53 - 1.7.13 Thermostats and other regulating devices
53 - 1.7.14 Language
53 - 1.7.15 Durability
54 - 1.7.16 Removable parts
54 - 1.7.17 Lithium batteries
54 - 1.7.18 Operator access with a tool
54 - 1.7.19 Equipment for restricted access locations
55 - 2 Protection from hazards
55 - 2.1 Protection from electric shock and energy hazards
55 - 2.1.1 Access to energized parts
55 - 2.1.2 Protection in operator access areas
56 - 2.1.3 Access to internal wiring
58 - 2.1.4 Protection in service access areas and restricted access locations
58 - 2.1.5 Energy hazards in operator access areas
59 - 2.1.6 Clearances behind conductive enclosures
59 - 2.1.7 Shafts of manual controls
59 - 2.1.8 Isolation of manual controls
60 - 2.1.9
60 - 2.1.10
60 - 2.2 Insulation
60 - 2.2.1 Methods for insulation
60 - 2.2.2 Properties of insulating materials
61 - 2.2.3 Humidity conditioning
61 - 2.2.4 Requirements for insulation
61 - 2.2.5 Insulation parameters
61 - 2.2.6 Categories of insulation
65 - 2.2.7 Determination of working voltage
66 - 2.2.8 Double or reinforced insulation bridged by components
67 - 2.3 SELV circuits
67 - 2.3.1 General requirements
67 - 2.3.2 Voltages under normal conditions
67 - 2.3.3 Voltages under fault conditions
69 - 2.3.4 Additional constructional requirements
70 - 2.3.5 Connection of SELV circuits to other circuits
71 - 2.4 Limited current circuits
72 - 2.5 Provisions for earthing
75 - 2.6 Disconnection from pri mary power
75 - 2.6.1 General requirement
75 - 2.6.2 Disconnect devices
76 - 2.6.3 Permanently connected equipment
76 - 2.6.4 Parts of a disconnect device which remain energized
76 - 2.6.5 Switches in flexible cords
77 - 2.6.6 Single-phase equipment
77 - 2.6.7 Three-phase equipment
78 - 2.6.8 Switches as disconnect devices
78 - 2.6.9 Plugs as disconnect devices
78 - 2.6.10 Deleted - reserved for future use.
78 - 2.6.11 Interconnected equipment
78 - 2.6.12 Mult ipl e power sources
78 - 2.6.13 Deleted - reserved for future use.
79 - 2.7 Overcurrent and earth fault protection in primary circuits
79 - 2.7.1 Basic requirements
79 - 2.7.2 Faults not covered in 5.4
79 - 2.7.3 Short-circuit backup protection
80 - 2.7.4 Number and location of protective devices
82 - 2.7.5 Protection by several devices
82 - 2.7.6 Warning to service personnel
82 - 2.8 Safety interlocks
86 - 2.9 Clearances, creepage distances and distances through insulation
86 - 2.9.1 General
88 - 2.9.2 Clearances
93 - 2.9.3 Creepage distances
94 - 2.9.4 Solid insulation
97 - 2.9.5 Coated printed boards
101 - 2.9.6 Enclosed and sealed parts
102 - 2.9.7 Spacings filled by insulating compound
103 - 2.9.8 Component external terminations
103 - 2.9.9 Insulation with varying dimensions
104 - 2.10 Interconnection of equipment
104 - 2.10.1 General requirements
104 - 2.10.2 Types of interconnection circuits
104 - 2.10.3 ELV circuit s as interconnection circuits
105 - 2.11 Limited power source
107 - 3 Wiring, connections and supply
107 - 3.1 General
109 - 3.2 Connection to primary power
116 - 3.3 Wiring terminals for external primary power supply conductors
120 - 4 Physical requirements
120 - 4.1 Stability and mechanical hazards
122 - 4.2 Mechanical strength and stress relief
122 - 4.2.1 General
122 - 4.2.2 Steady force test, 30 N
122 - 4.2.3 Steady force test, 250 N
122 - 4.2.4 Steel ball test
123 - 4.2.5 Drop test
125 - 4.2.6 Stress relief test
125 - 4.2.7 Compliance criteria
125 - 4.2.8 Mechanical strength of cathode ray tubes
125 - 4.3 Construction details
134 - 4.4 Resistance to fire
134 - 4.4.1 Methods of achieving resistance to fire
134 - 4.4.2 Minimizing the risk of ignition
134 - 4.4.3 Flammability of materials and components
136 - 4.4.4 Materials for enclosures and for decorative parts
137 - 4.4.5 Conditions for fire enclosures
139 - 4.4.6 Fire enclosure construction
141 - 4.4.7 Doors or covers in fire enclosures
141 - 4.4.8 Flammable liquids
143 - 5 Thermal and electrical requirements
143 - 5.1 Heating
145 - 5.2 Earth leakage current
145 - 5.2.1 General
145 - 5.2.2 Requirements
146 - 5.2.3 Single-phase equipment
147 - 5.2.4 Three-phase equipment
148 - 5.2.5 Equipment with earth leakage current exceeding 3,5 mA
148 - 5.3 Electri c strength
148 - 5.3.1 General
149 - 5.3.2 Test procedure
152 - 5.4 Abnormal operating and fault conditions
157 - 6 Connection to telecommunication networks
157 - 6.1 General
157 - 6.2 TNV circuits
157 - 6.2.1 TNV circuit characteristics and requirements
163 - 6.2.2 Protection against contact with TNV circuits
165 - 6.3 Protection of telecommunication network service personnel, and users of other equipment connected to the network,...
165 - 6.3.1 Protection from hazardous voltages
165 - 6.3.2 Use of protective earthing
165 - 6.3.3 Separationof the telecommunication network from earth
168 - 6.3.4 Leakage currents to and from telecommunication networks
170 - 6.4 Protection of the equipment users from overvoltages on the telecommunication networks
170 - 6.4.1 Separation requirements
170 - 6.4.2 Test procedure
173 - 6.5 Protection of the telecommunication wiring system from overheating
176 - Annex A - Tests for resistance to heat and fire
176 - A.1 Flammability test for fire enclosures of movable equipment having a total mass exceeding 18 kg, and of stationary...
177 - A.2 Flammability test for fire enclosures of movable equipment having a total mass not exceeding 18 kg, and for materials...
179 - A.3 High current arcing ignition test (see 4.4.4)
180 - A.4 Hot wire ignition test (see 4.4.4)
181 - A.5 Hot flaming oi l test (see 4.4.6)
181 - A.6 Flammability tests for classifying materials V-0, V-1 or V-2 (see 1.5.4 and 4.4)
183 - A.7 Flammability test for classifying foamed materials HF-1, HF-2 or HBF (see 1.5.4, 4.4.1 and 4.4.3)
185 - A.8 Flammability test for classifying materials HB (see 4.4.3 and 4.4.4)
186 - A.9 Flammability test for classifying materials 5V (see 4.4.1)
190 - Annex B - Motor tests under abnormal conditions (see 4.4.5.2 and 5.4.2)
190 - B.1 General requirements
190 - B.2 Test conditions
191 - B.3 Maximum temperatures
192 - B.4 Running overload test
192 - B.5 Locked-rotor overload test
193 - B.6 Running overload test for d.c. motors in secondary circuits
194 - B.7 Locked-rotor overload test for d.c. motors in secondary circuits
194 - B.8 Test for motors with capacitors
195 - B.9 Test for three-phase motors
195 - B.10 Test for series motors
196 - Annex C - Transformers (see 1.5.3)
196 - C.1 Overload test
198 - C.2 Insulation
202 - Annex D - Measuring instrument for earth leakage current tests (See 5.2.2 and Annex G.2)
203 - Annex E - Temperature rise of a winding (see 1.4.8 and 5.1)
204 - Annex F - Measurement of creepage distances and clearances (see 2.9)
212 - Annex G - Earth leakage current for equipment intended to be connected directly to IT power systems (see 5.2)
212 - G.1 General
212 - G.2 Requirements
213 - G.3 Single-phase equipment
214 - G.4 Three-phase equipment
215 - G. 5 Equipment with earth leakage current exceeding 3,5 mA
216 - Annex H - Ionizing radiation (see 4.3.12)
217 - Annex J - Table of electrochemical potentials (see 2.5.10)
218 - Annex K - Thermal controls (see 1.5.2 and 5.4.8)
220 - Annex L - Normal load conditions for some types of electrical business equipment (see 1.2.2.1 and 5.1)
221 - Annex M - Criteria for telephone ringing signals (see 6.2.1.1)
221 - M.1 Introduction
221 - M.2 Method A
224 - M.3 Method B
226 - Annex N - Impulse test generator (see 2.9.9 and 6.4.2.1)
227 - Annex P - Normative references
229 - Annex Q - Bibliography
230 - Annex R - Example of requirements for a quality control programme
230 - R.1 Minimum separation distances for unpopulated coated printed boards (see 2.9.5)
232 - R.2 Reduced clearances (see 2.9.2)
234 - Annex S - Procedure for impulse testing (see 6.4.2.3)
234 - S.1 Test equi pment
234 - S.2 Test procedure
234 - S.3 Examples of waveforms during impulse testing
236 - Annex T - Guidance on protection against ingress of water (see 1.1.2)
238 - Annex U - Insulated winding wires for use without interleaved insulation (see 2.9.4.4)
238 - U.1 Wire construction
238 - U.2 Type tests
239 - U.3 Routine test
240 - Annex V - Change to the definitions of SELV circuit and TNV circuit
242 - APPENDIX 1 - VARIATIONS FOR AUSTRALIA AND NEW ZEALAND
244 - APPENDIX 2 - ALTERNATIVE RESISTANCE TO FIRE TEST DETERMINATION OF IGNITABILITY AND COMBUSTION PROPAGATION
246 - APPENDIX 3 - D.C. COMPONENT FROM A.C. EQUIPMENT

Specifies the safety requirements for information technology equipment, including electrical business equipment, computers and equipment connected to telecommunications networks.

Equipment covered by this standardThis standard is applicable to mains-powered or battery-powered information technology equipment, including electrical business equipment and associated equipment, with a RATED VOLTAGE not exceeding 600 V.This standard is also applicableto such equipment designedand intendedto be connected directly to a TELECOMMUNICATION NETWORK and forming part of a subscriber's installation, regardless of ownership and of responsibility for installation and maintenance, and regardless of the source of power.This standard specifies requirements intendedto ensure safety for the OPERATOR and layman who may come into contact with the equipment and, where specifically stated, for SERVICE PERSONNEL.This standard is intended to ensure the safety of installed equipment, whether it consists of a system of interconnected units or independent units, subject to installing, operating and maintaining the equipment in the manner prescribed by the manufacturer.Examples of equipment which is within the scope of this standard are:accounting machines monetary processing machinesbook-keeping machines including automated teller calculators (cash dispensing) machinescash registers motor-operated filescopying machines PABXsdata circuit terminating paper jogging machines equipment (e.g. modems) paper tape readers and punchersdata preparation equipment paper trimmers (punchers,data processing equipment cutting machines, separators)data terminal equipment pencil sharpenersdocument shredding machines personal computersduplicators photoprinting equipment electrically operated drawing plotters machines (plotters) point of sale terminals includingerasers associated electronic scalesfacsimile equipment postage machineskey telephone systems staplersmagnetic tape handlers telephone answering machines mail processing machines telephone sets micrographic office equipment teleprintersmodems text processing equipment typewriters visual display unitsThis list is not intended to be comprehensive, and equipment that is not listed is not necessarily excluded from the scope.Equipment complying with the relevant requirements in this standard is considered suitable for use with process control equipment, automatic test equipment and similar systems requiring information processing facilities. However, this standard does not include requirements for performance or functional characteristics of equipment.

Committee
TE-001
DocumentType
Standard
ISBN
0 7262 8020 8
Pages
221
ProductNote
(In Rul ES/1)
PublisherName
Standards Australia
Status
Withdrawn
SupersededBy
Supersedes
UnderRevision

Standards Relationship
IEC 60950:1991 Identical

Amendment 1 to AS/NZS 3260:1993 see DR 94136. Amendment 3 to AS/NZS 3260:1993 see DR 95215. Amendment 4 to AS/NZS 3260:1993 see DR 96552. Under Revision see DR 99476. Under Revision see DR 02508 CP In Australia First published as AS 3260-1988.In New Zealand First published as NZS 6660:1987.Revised and redesignated NZS 6661:1989.AS 3260-1988 and NZS 6661:1989 revised, amalgamated and designated AS/NZS 3260:1993. In Australia First published as AS 3260-1988. In New Zealand First published as NZS 6660:1987. Revised and redesignated NZS 6661:1989. AS 3260-1988 and NZS 6661:1989 revised, amalgamated and designated AS/NZS 3260:1993.

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SAA HB37.2-1993 Handbook of Australian fire Standards Electrical equipment (Reconfirmed 2016)
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