TC 31

Equipment for explosive atmospheres

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 31MT 60079-26Mr Gerold Klotz-EngmannCFDIS2021-032024

History

Stage
Document
Downloads
Decision Date
Target Date
ACD
31/1442/RR PDF file 107 kB
2018-12-13 
CD
31/1443A/CD PDF file 499 kB

2019-01-112018-12
PCC
2019-03-082019-03
CDM
31/1458/CC PDF file 532 kB
Word file 78 kB
2019-03-152019-04
ACDV
31/1458A/CC PDF file 427 kB
Word file 84 kB
2019-11-152019-11
TCDV
2020-01-142020-03
CCDV
31/1529/CDV
PDF file 470 kB
PDF file 470 kB
2020-03-062020-03
PRVC
2020-05-292020-05
AFDIS
31/1543/RVC PDF file 425 kB
Word file 133 kB
2020-06-052021-08
AFDIS
31/1543A/RVC PDF file 466 kB
Word file 145 kB
2020-06-052021-08
DECFDIS
2020-10-232021-12
RFDIS
2020-10-272020-11
CFDIS
31/1562/FDIS PDF file 475 kB
2020-11-282021-01
PRVD
 2021-01

Abstract

IEC 60079-26:2020 (E) specifies requirements for construction, testing and marking for Ex Equipment that contains parts of the equipment with different Equipment Protection Levels (EPLs) and a separation element. This equipment is mounted across a boundary where different EPLs are required, for example between different gas hazardous areas, dust hazardous areas or gas hazardous areas adjacent to dust hazardous areas.
Separation elements are considered for both electrical and non-electrical equipment. If mechanical energy can be transformed into a potential ignition source, additionally an ignition hazard assessment in accordance with ISO 80079-36 is performed and appropriate measures are undertaken.
This document also specifies requirements for the combination of two Types of Protection, each with EPL Gb, to achieve EPL Ga.
This document supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this document conflicts with a requirement of IEC 60079-0, the requirement of this document takes precedence.
This fourth edition cancels and replaces the third edition and constitutes a technical revision. Please see the IEC 60079-26:2020 foreword for a description of the main changes with respect to the previous edition.

Project

IEC 60079-26 ED4

Explosive atmospheres – Part 26: Equipment with Separation Elements or combined Levels of Protection

 

 

Associated Documents:

SMB/7060/DL

PDF file 296 kB