CSA C22.2 No. 61241-4 : 2012
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST - PART 4: TYPE OF PROTECTION 'PD'
Hardcopy , PDF
11-29-2016
English
01-01-2012
FOREWORD
1 Scope
2 Normative references
3 Definitions
4 Pressurization principle
5 General constructional requirements
6 Temperature limits
7 Safety provisions and safety devices (except for static
pressurization)
8 Safety provisions and safety devices for static
pressurization
9 Supply of protective gas
10 Verification and tests
11 Marking
Annex A (normative) - Ducts for protective gas supply
Annex B (normative) - Installation requirements for
pressurization
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