IEC 61241-18:2004
Superseded
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Electrical apparatus for use in the presence of combustible dust - Part 18: Protection by encapsulation 'mD'
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
08-05-2009
English - French, Spanish, Castilian
12-08-2004
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Temperature classification
4.2 Level of protection
4.3 Level of protection "maD"
4.4 Level of protection "mbD"
4.5 Supply specifications
5 Requirements for compounds
5.1 General
5.2 Specification
6 Temperature
6.1 General
6.2 Temperature limitation
6.3 Determination of the limiting temperature values
7 Constructional requirements
7.1 General
7.2 Determination of possible faults
7.3 Switching contacts
7.4 External connections
7.5 Protection of bare live parts
7.6 Cells and batteries
7.7 Protective devices
8 Type tests
8.1 Tests on the compound - water absorption test
8.2 Tests on the apparatus
9 Routine verifications and tests
9.1 Visual inspections
9.2 Dielectric strength test
10 Marking
Annex A (informative) Basic requirements for compounds
for encapsulation "mD" apparatus
Annex B (normative) Allocation of test samples
Annex C (normative) Test procedure during thermal cycling test
Figures
Tables
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