prEN IEC 81346-14:2025

SLOVENSKI STANDARD
01-julij-2025
Industrijski sistemi, inštalacije in oprema ter industrijski izdelki - Načela
strukturiranja in referenčne oznake - 14. del: Proizvodni in predelovalni sistemi
Industrial systems, installations and equipment and industrial products - Structuring
principles and reference designation - Part 14: Manufacturing and processing systems
Systèmes, installations et équipements industriels, et produits industriels - Principes de
structuration et désignations de référence - Partie 14: Systèmes de fabrication et de
traitement
Ta slovenski standard je istoveten z: prEN IEC 81346-14:2025
ICS:
01.110 Tehnična dokumentacija za Technical product
izdelke documentation
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

3/1708/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 81346-14 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-04-25 2025-07-18
SUPERSEDES DOCUMENTS:
3/1675/CD, 3/1705A/CC
IEC TC 3 : DOCUMENTATION, GRAPHICAL SYMBOLS AND REPRESENTATIONS OF TECHNICAL INFORMATION
SECRETARIAT: SECRETARY:
Sweden Mr Mikael Törnkvist
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 3 Horizontal
TC 44,TC 65,SC 65A,SyC SM
ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Industrial systems, installations and equipment and industrial products - Structuring principles and
reference designation - Part 14: Manufacturing and processing systems

PROPOSED STABILITY DATE: 2031
NOTE FROM TC/SC OFFICERS:
this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee
positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose
without permission in writing from IEC.

– 2 – IEC CDV 81346-14 © IEC 2025
1 CONTENTS
4 FOREWORD . 4
5 INTRODUCTION . 6
6 1 Scope . 8
7 2 Normative references . 8
8 3 Terms and definitions . 8
9 4 General concepts . 10
10 4.1 Object . 10
11 4.2 Aspect . 10
12 4.3 Systems . 10
13 4.3.101 Prime systems . 10
14 4.3.102 Technical systems . 10
15 4.3.103 Component systems . 10
16 4.4 Structuring . 10
17 4.5 Function . 10
18 4.6 Products and components . 11
19 4.7 Location . 11
20 4.8 Types . 11
21 4.9 Object occurrences and product individuals . 11
22 4.10 Relations between concepts . 11
23 5 Structuring principles . 11
24 5.1 General . 11
25 5.2 Forming structures . 11
26 5.3 Function-oriented structure . 11
27 5.4 Product-oriented structure . 11
28 5.5 Location-oriented structure . 11
29 5.6 Type-oriented structure . 12
30 5.7 Structures based on "other aspects" . 12
31 5.8 Structures based on more than one aspect . 12
32 6 Construction of reference designations . 12
33 6.1 General . 12
34 6.2 Format of reference designations . 12
35 6.2.1 Single level . 12
36 6.2.2 Multi-level . 12
37 6.2.3 Use of letter codes . 12
38 6.3 Different structures within the same aspect . 14
39 7 Reference designation set . 14
40 8 Designation of locations . 14
41 8.1 General . 14
42 8.2 Assemblies . 15
43 9 Presentation of reference designations . 15
44 9.1 Reference designation . 15
45 9.2 Reference designation set . 15
46 9.3 Presentation of identifiers for the top-node . 15
47 10 Labelling . 15

IEC CDV 81346-14 © IEC 2025 – 33 –
48 11 Presentation of properties for an object . 15
49 12 Application of the reference designation system . 15
50 Annexes . 16
51 Annex AA (normative) Classification letter codes for systems . 17
52 AA.1 General . 17
53 AA.2 Classes of prime systems for manufacturing . 17
54 AA.3 Classes of technical systems . 18
55 Annex BB (informative) Example of reference designation within a system . 24
56 Bibliography . 28
58 Figure 101 – Relation between prime systems, technical systems and component
59 systems . 13
60 Figure 102 – Relation between construction complexes, construction entities and
61 construction spaces . 14
62 Figure BB.1 – Process flow diagram for a material handling plant . 24
63 Figure BB.2 – Overview diagram of part of the material process system (=M1) and part
64 of the power supply system (=B1) supporting the material processing system . 25
65 Figure BB.3 – Structure tree for parts of the material handling plant . 26
66 Figure BB.4 – Example of designation of technical systems of a prime system (=M1) in a
67 block diagram for a chemical plant . 27
69 Table 101 – Examples of using ? in a class code . 13
70 Table 102 – Examples of reference designations . 13
71 Table 103 – Application of annexes of IEC 81346-1:2022 . 16
72 Table AA.1 – Classes of prime systems for manufacturing . 17
73 Table AA.2 – Classes of technical systems . 18
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77 INTERNATIONAL ELECTROTECHNICAL COMMISSION
78 ____________
80 Industrial systems, installations and equipment and industrial products —
81 Structuring principles and reference designations
83 Part 14: Manufacturing and processing systems
87 FOREWORD
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