INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
4.1 General
4.2 Void
4.3 Opening enclosures
4.4 Environmental conditions
4.Z1 Mechanical strength of apparatus
5 Temperatures
5.1 Maximum surface temperature
5.2 Maximum surface temperature with respect to
dust layers above 50 mm
5.3 Ambient temperature
6 Enclosure materials
6.1 Non-metallic enclosures and non-metallic parts of
enclosures
6.2 Enclosures containing light metals
7 Fasteners
7.1 Access to live parts
7.2 Compatible material
8 Interlocking devices
9 Bushings
9.1 Prevention of turning
9.2 Torque tests
10 Materials used for cementing
10.1 Documentation
10.2 Thermal stability
10.3 Verification
11 Ex components
11.1 General
11.2 Mounting
11.3 Internal mounting
11.4 External mounting
12 Connection facilities and terminal compartments
12.1 Attached cables
12.2 Terminal access
12.3 Creepage and clearance
13 Connection facilities for earthing or bonding conductors
13.1 Internal connection
13.2 External connection
13.3 Facility not required
13.4 Effective connection
13.5 Effective contact
13.6 Environmental
13.7 Use of light metal
14 Cable and conduit entries
14.1 Intended use
14.2 Construction
14.3 Integral part of the apparatus
14.4 Prevention of twisting
14.5 Method of attaching
14.6 Blanking elements
14.7 Branching point temperatures
15 Radiating equipment
15.1 Lasers and other continuous wave source
15.2 Ultrasonic sources
16 Supplementary requirements for specific
electrical apparatus - Rotating electrical machines
16.1 Ventilation openings for external fans
16.2 Construction and mounting of the ventilating systems
16.3 Clearances for the ventilating system
16.4 Materials for external fans and fanhoods
17 Switchgear
17.1 Flammable dielectric
17.2 Interlocking
17.3 Indication of open position
17.4 Openings
18 Fuses
19 Plugs and sockets
19.1 Plugs and sockets construction
19.2 Bolted plugs and sockets
19.3 For Zone 21 and Zone 22
19.4 Plugs remaining energized
20 Luminaires
20.1 Light transmitting covers
20.2 Guards
20.3 Mounting
20.4 Covers
20.5 Parts remaining energized
20.6 Types of lamps
21 Caplights, caplamps and handlamps
21.1 Leakage
21.2 Separate enclosures
22 Apparatus incorporating cells and batteries
22.1 General
22.2 Connection of cells
22.3 Characteristics
22.4 Compatibility
22.5 Limits
22.6 Mixture of cells
22.7 Interchangeability
22.8 Re-charging
22.9 Different cells
22.10 Leakage
22.11 Method of connection
22.12 Orientation
22.13 Identification of replacement
23 Verification and tests
23.1 General
23.2 Verification of documents
23.3 Compliance of prototype or sample with documents
23.4 Type tests
24 Routine verifications and tests
25 Manufacturer's responsibility
26 Verifications and tests on modified or repaired electrical
apparatus
27 Clamping tests of cable entries for non-armoured and braided
cables
27.1 Cable entries with clamping by the sealing ring
27.2 Cable entries with clamping by filling compound
27.3 Cable entries with clamping by means of a clamping device
27.4 Tensile test
27.5 Mechanical strength
28 Clamping tests of cable entries for armoured cables
28.1 Clamping tests where the armourings are clamped
by a device within the gland
28.2 Clamping tests where the armourings are not clamped by a
device within the gland
29 Marking
29.1 General
29.2 Marking of all electrical apparatus
29.3 Multiple protection techniques
29.4 Order of marking
29.5 Reduced marking
30 Examples of marking
30.1 Apparatus type of protection "mD" for use in Zone 20
30.2 Apparatus type of protection "iaD" for use in Zone 20
30.3 Apparatus type of protection "pD" for use in Zone 21
30.4 Apparatus type of protection "tD", Practice A; temperature
tested under 500 mm dust layer, for use in Zone 21
30.5 Apparatus type of protection "tD", Practice B for use in
Zone 22
30.6 Apparatus type of protection "tD", Practice A for use in
Zone 22
Annex ZA (informative) Classification of electrical apparatus into
categories
Annex ZB (normative) Normative references to international
publications with their corresponding European publications
Annex ZZ (informative) Coverage of Essential Requirements of EC
Directives
Bibliography