Structuring principles and identification
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Users of these standards are encouraged to propose improvements of the standard either through their National Committee of the IEC or directly by e-mail to the Maintenance Team Convenor (contact information available by clicking on TC/MT links). Click on the Preview icon to view the contents and scope of each publication. Click on Review date to view work in progress.

A list of all publications and work in progress for TC 3 is also available from the IEC website.

Publication Scope/
Contents
Title TC/MT Release
Date
Review
date

IEC 61175 Ed. 2

Industrial systems, installations and equipment and industrial products - Designation of signals and connections. 
Adopted as EN 61175: 1993.
TC 3/MT 17

1993-07

2005-09

2008
IEC 81346-1 Ed. 1 Industrial systems, installations and equipment and industrial products - Structuring, principles and reference designation, Part 1: Basic rules.
Replacing IEC 61346-1 Ed. 1 from 1996, adopted as EN 61346-1: 1996
TC 3/MT 18 2009-07 2019
IEC 81346-2 Ed. 1 Industrial systems, installations and equipment and industrial products - Structuring, principles and reference designation, Part 2: Classification of objects and codes for classes
Replacing IEC 61346-2 Ed.1 from 2000, adopted as EN 61346-2: 2000
TC 3/MT 18 2009-07 2015
IEC 61355-1 Ed. 2 Classification and designation of documents for plants, systems and equipment, Part 1: Rules and classification tables
Replacing IEC 61355 Ed. 1 from 1997, adopted as EN 61355: 1997
TC 3/MT 19

1997-04
2008-04

 

2015
IEC 61355 DB   Classification and designation of documents for plants, systems and equipment, Collection of standardized and established document kinds TC 3/MT 19 2008-04 cont.
IEC 61666 Ed. 1 Industrial systems, installations and equipment and industrial products - Identification of terminals within a system.
Adopted as EN 61666: 1997
TC 3/MT 18 1997-05 2007
 
 
 
 
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