FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Apparatus grouping and temperature
classification
4.2 Potential ignition sources
5 Temperatures
5.1 Environmental influences
5.2 Service temperature
5.3 Maximum surface temperature
5.4 Surface temperature and ignition temperature
5.5 Small components
6 Requirements for electrical apparatus
6.1 General
6.2 Mechanical strength of apparatus
6.3 Opening times
6.4 Circulating currents
6.5 Gasket retention
6.6 Degree of protection of enclosure (IP)
6.7 Clearances, creepage distances and separations
6.8 Electric strength
7 Non-metallic enclosures and non-metallic parts
of enclosures
7.1 General
7.2 Thermal endurance
7.3 Electrostatic charges on external non-metallic
materials of enclosures
7.4 Threaded holes
7.5 Thermal shock
7.6 Resistance to light
8 Enclosures containing light metals
8.1 Material composition
8.2 Threaded holes
9 Fasteners
9.1 General
9.2 Special fasteners
10 Interlocking devices
11 Bushings
12 Materials used for cementing
13 Ex components
13.1 Type of protection "n"
13.2 Mounting
13.3 Internal mounting
13.4 External mounting
14 Connection facilities and terminal compartments
14.1 General
14.2 Connection for external conductors
14.3 Internal connection facilities
15 Connection facilities for earthing or bonding
conductors
16 Entries into enclosures
17 Supplementary requirements for non-sparking electrical
machines
17.1 General
17.2 Connection facilities for external conductors
17.3 Neutral point connections
17.4 Radial air gap
17.5 Ventilation systems
17.6 Bearing seals and shaft seals
17.7 Rotor cages
17.8 Surface temperature limitation
17.9 Additional requirements for machines with rated
voltage greater than 1kV
18 Supplementary requirements for switchgear
19 Supplementary requirements for non-sparking fuses and
fuse assemblies
19.1 Fuses
19.2 Temperature class of an apparatus
19.3 Fuse mounting
19.4 Fuse enclosures
19.5 Replacement fuse identification
20 Supplementary requirements for non-sparking plugs and
sockets
20.1 Plugs and sockets for external connections
20.2 Maintaining degree of protection
20.3 Plugs and sockets for internal connections
20.4 Sockets that do not have plugs inserted in normal
operation
21 Supplementary requirements for non-sparking luminaires
21.1 General
21.2 Construction
21.3 Other apparatus containing light sources
22 Supplementary requirements for apparatus incorporating
non-sparking cells and batteries
22.1 Categorization of cells and batteries
22.2 General requirements for cells and batteries of
types 1 and 2
22.3 Charging of type 1 cells and batteries
22.4 Charging of type 2 cells and batteries
22.5 Requirements for type 3 secondary batteries
22.6 Verification and tests
23 Supplementary requirements for non-sparking low
power apparatus
24 Supplementary requirements for non-sparking current
transformers
25 Other electrical apparatus
26 General supplementary requirements for apparatus
producing arcs, sparks or hot surfaces
27 Supplementary requirements for enclosed-break devices
and non-incendive components producing arcs, sparks
or hot surfaces
27.1 Type testing
27.2 Ratings
27.3 Construction of enclosed-break devices
28 Supplementary requirements for hermetically sealed
devices producing arcs, sparks or hot surfaces
29 Supplementary requirements for sealed devices or
encapsulated devices producing arcs, sparks or hot
surfaces
29.1 Non metallic materials
29.2 Opening
29.3 Internal spaces
29.4 Handling
29.5 Resilient gasket and seals
29.6 Encapsulating compounds
29.7 Thickness of encapsulant
29.8 Type tests
30 Supplementary requirements for energy-limited apparatus
and circuits producing arcs, sparks or hot surfaces
30.1 General
30.2 Associated energy-limited
apparatus
30.3 Energy-limited apparatus
30.4 Self protected energy-limited apparatus
30.5 Separation of conducting parts
30.6 Plugs and sockets
30.7 Protection against polarity reversal
30.8 Requirements for components on which energy
limitation depends
30.9 Battery powered apparatus
30.10 Marking and documentation
31 Supplementary requirements for restricted-breathing
enclosures protecting apparatus producing arcs, sparks
or hot surfaces
31.1 General
31.2 Test point for restricted breathing apparatus
31.3 Test point exemption
31.4 Gasket and seal requirements
31.5 Non-resilient seals
31.6 Maintenance considerations
31.7 Internal fans
32 General information on verification and tests
33 Type tests
33.1 Representative samples
33.2 Test configuration
33.3 Tests for enclosures on which the type of
protection depends
33.4 Test for enclosed-break devices and non-incendive
components
33.5 Tests for sealed devices and encapsulated devices
33.6 Assessment and test of energy-limited apparatus
and circuits
33.7 Tests for restricted-breathing enclosures
33.8 Test for screw lampholders
33.9 Test for starter holders for luminaires
33.10 Tests for electronic starters for tubular
fluorescent lamps and for ignitors for high
pressure sodium or metal halide lamps
33.11 Test for wiring of luminaires subject to
high-voltage impulses from ignitors
33.12 Mechanical shock test for batteries
33.13 Insulation resistance test for batteries
33.13 Insulation resistance test for batteries machines
34 Routine verifications and tests
34.1 General
34.2 Specific routine tests
35 Marking
35.1 General
35.2 Additional marking for batteries
35.3 Examples of marking
36 Documentation
37 Instructions
Bibliography
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Annex ZZ (informative) Coverage of essential requirements of
the Directive
Figures
Tables