AS/NZS 60079.7:2006

1 - AS/NZS 60079.7:2006 Explosive atmospheres Part 7: Equipment protection by increased safety ‘e’
4 - PREFACE
5 - CONTENTS
7 - 1 Scope
7 - 2 Normative references
10 - 3 Terms and definitions
12 - 4 Constructional requirements for all electrical apparatus
12 - 4.1 General
12 - 4.2 Electrical connections
15 - 4.3 Clearances
20 - 4.4 Creepage distances
21 - 4.5 Solid electrical insulating materials
21 - 4.6 Windings
22 - 4.7 Temperature limitations
23 - 4.8 Wiring internal to apparatus
23 - 4.9 Degrees of protection provided by enclosures
24 - 4.10 Fasteners
24 - 5 Supplementary requirements for specific electrical apparatus
24 - 5.1 General.
24 - 5.2 Rotating electrical machines
30 - 5.3 Luminaires
34 - 5.4 Caplights and handlights
34 - 5.5 Measuring instruments and instrument transformers
35 - 5.6 Transformers other than instrument transformers
35 - 5.7 Batteries
40 - 5.8 General purpose connection and junction boxes
40 - 5.9 Resistance heaters (other than trace heaters)
42 - 5.10 Other electrical apparatus
42 - 6 Type verifications and type tests
42 - 6.1 Dielectric strength
43 - 6.2 Rotating electrical machines
44 - 6.3 Luminaires designed for mains supply
47 - 6.4 Measuring instruments and instrument transformers
47 - 6.5 Transformers other than instrument transformers
47 - 6.6 Secondary batteries
50 - 6.7 General purpose connection and junction boxes
50 - 6.8 Resistance heating devices and resistance heating units
51 - 6.9 Terminal insulating material tests.
52 - 7 Routine verifications and routine tests
52 - 7.1 Dielectric tests
52 - 7.2 Dielectric tests for batteries
53 - 7.3 Inter-turn overvoltage tests
53 - 8 Ex component certificates
53 - 8.1 General
53 - 8.2 Terminals
53 - 9 Marking and instructions
53 - 9.1 General marking
54 - 9.2 Instructions for use
55 - 9.3 Warning markings
57 - Annex A (normative) Cage motors
xx; Methods of test and of calculation
59 - Annex B (normative) Type tests for specific forms of resistance heating devices or resistance heating units (other than trace heater)
61 - Annex C (informative) Cage motors – Thermal protection in service
62 - Annex D (informative) Resistance heating devices and units – Additional electrical protection
63 - Annex E (informative) Combinations of terminals and conductors for general purpose connection and junction boxes
65 - Annex F (informative) Dimensions of copper conductors
66 - Annex G (informative) Potential stator winding discharge risk assessment – Ignition risk factors
67 - Annex H (normative) Test procedure for T8, T10 and T12 lamps
72 - Annex I (informative) Introduction of an alternative risk assessment method encompassing ‘Equipment Protection Levels’ for Ex Equipmen
76 - Bibliography

Specifies the requirements for the design, construction, testing and marking of electrical apparatus with type of protection increased safety 'e' intended for use in explosive gas atmospheres.

Originated as AS/NZS 60079.7:2002.
Second edition 2006.