ISA 61241-0 : 2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ELECTRICAL APPARATUS FOR USE IN ZONE 20, ZONE 21 AND ZONE 22 HAZARDOUS (CLASSIFIED) LOCATIONS - GENERAL REQUIREMENTS
Hardcopy , PDF
03-19-2021
English
01-01-2006
1 Scope
2 References
3 Definitions
4 Construction
4.1 General
4.3 Opening enclosures
4.4 Environmental conditions
5 Temperatures
5.1 Maximum surface temperature
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
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
13.3 Apparatus not requiring earthing
13.4 Size of conductor connection
13.5 Effective contact
13.6 Environmental
13.7 Use of light metal
14 Entries into enclosures
14.1 Identification of entries
14.2 Cable glands
14.3 Integral part of the apparatus
14.4 Prevention of twisting
14.5 Enclosure entry
14.6 Blanking elements
14.7 Branching point temperatures
15 Radiating equipment
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 energised
20 Luminaires
20.1 Light transmitting covers
20.2 Guards
20.3 Mounting
20.4 Covers
20.6 Types of lamps
21 Caplights and handlights
21.1 Leakage
21.2 Separate enclosures
22 Apparatus incorporating cells and batteries
22.1 General
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
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
29.6 External grounding or bonding terminal
30 Examples of marking
30.1 Apparatus type of protection "maD" 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
30.5 Apparatus type of protection "tD", for use in Zone 22
30.6 Apparatus type of protection "tD", for use in Zone 22
Annex A (informative) - Common standards - Safety requirements
for electrical equipment
Annex B (informative) - Equipment grounding
Annex C (informative) - United States major deviations
Bibliography
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