ISA 12.04.04 : 2012

Current

Current The latest, up-to-date edition.

PRESSURIZED ENCLOSURES

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Published date: 12-01-2013

Publisher: International Society of Automation

Table of Contents - (Show below) - (Hide below)

1 Scope
2 Purpose
3 References
4 Definitions
5 General requirements
6 Enclosure requirements
7 Non-metallic enclosures, non-metallic parts of
enclosures protrude through the enclosure
8 Protecting hot surfaces and ignition-capable components
9 Protecting against enclosure rupture
10 PURGING requirements
11 Tests
12 Marking
13 Enclosure access for maintenance
Annex A (informative) - Comments on the text
Annex B (informative) - Information for sizing pipes and
ducts

Abstract - (Show below) - (Hide below)

Pertains to equipment made suitable for use in hazardous (classified) locations by pressurizing the use of a pressurizing system.

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Development Note	Supersedes ISA RP12.4. (08/2012)
Document Type	Standard
ISBN
Pages
Published
Publisher	International Society of Automation
Status	Current

Standards Referenced By This Book - (Show below) - (Hide below)

C22.1-15 PACKAGE	Consists of C22.1-15, Canadian electrical code, part I (23rd edition), safety standard for electrical installations; C22.1HB-15, Canadian electrical code handbook - an explanation of rules of the Canadian electrical code, part I and the 2015 Electrical quick reference
C22.1HB-18	Canadian Electrical Code Handbook - An Explanation of the Rules of the Canadian Electrical Code, Part I
C22.1-18	Canadian Electrical Code, Part I (24th Edition), Safety Standard for Electrical Installations

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