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BS EN IEC 60079-15:2019

BS EN IEC 60079-15:2019

$167.15

Explosive atmospheres – Equipment protection by type of protection “n”

Published By Publication Date Number of Pages
BSI 2019 40
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This part of IEC 60079 specifies requirements for the construction, testing and marking for Group II electrical equipment with type of protection ā€œnā€ which includes; sealed devices ā€œnCā€, hermetically sealed devices ā€œnCā€, non-incendive components ā€œnCā€ and restricted breathing enclosures ā€œnRā€ intended for use in explosive gas atmospheres. This part of IEC 60079 applies to electrical equipment where the rated input voltage does not exceed 15 kV r.m.s. AC or DC including where the internal working voltages of the Ex product exceeds 15 kV, for example starters for HID luminaires.

This part of IEC 60079 supplements and modifies the general requirements of IEC 60079-0, except as indicated in Table 1. Where a requirement of this part of IEC 60079 conflicts with a requirement of IEC 60079-0, the requirement of this part of IEC 60079 takes precedence.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 Blank Page
9 English
CONTENTS
11 FOREWORD
16 1 Scope
Table 1 ā€“ Relationship of IEC 60079-15 to IEC 60079-0
22 2 Normative references
23 3 Terms and definitions
24 4 General
4.1 Equipment grouping and temperature classification
4.2 Potential ignition sources
4.3 Equipment requirements
5 Maximum surface temperatures
25 6 Requirements for electrical equipment
6.1 General
6.2 Electric strength insulation from earth or frame
7 Requirements for non-incendive components
7.1 Type testing
7.2 Circuit limitations
8 Requirements for hermetically sealed devices
26 9 Requirements for sealed devices
9.1 Non-metallic materials
9.2 Opening
9.3 Internal spaces
9.4 Handling
9.5 Gasket and seals
9.6 Type tests
10 Requirements for restricted-breathing enclosures
10.1 General
27 10.2 Constructional requirements
10.2.1 Type of equipment
10.2.2 Cells and batteries
10.2.3 Cable glands and conduit entries
28 10.2.4 Operating rods, spindles and shafts
10.2.5 Windows
10.2.6 Gasket and seal requirements
10.2.7 Non-resilient seals
29 10.2.8 Test port
30 10.2.9 Internal fans
10.3 Temperature limitation
10.4 Additional requirements for restricted-breathing luminaires
10.4.1 Mounting arrangement
10.4.2 Reflectors
10.4.3 Surface temperatures of restricted-breathing luminaires
31 11 Type Tests
11.1 Tests for non incendive components
11.1.1 Preparation of non-incendive component samples
11.1.2 Test conditions for non-incendive components
32 11.2 Tests for sealed devices
11.2.1 Conditioning
11.2.2 Voltage test
11.2.3 Leakage tests on sealed devices
33 11.3 Type test requirements for restricted-breathing enclosures
11.3.1 General
11.3.2 Equipment where the volume of the enclosure will be unchanged due to pressure
11.3.3 Alternative type test for equipment where the volume of the enclosure changes due to pressure
34 12 Routine verifications and tests
12.1 Electric strength test
12.2 Routine test requirements for restricted-breathing enclosures
12.2.1 General
12.2.2 Test procedure
35 12.3 Routine temperature rise test
12.4 Temperature calculation
36 13 Marking
13.1 General
13.2 Examples of marking
13.3 Warning markings
14 Documentation
Table 2 ā€“ Text of warning markings
37 15 Instructions
38 Bibliography

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BS EN IEC 60079-15:2019
$167.15