Industrial systems, installations and equipment and industrial products - Identification of terminals within a system (IEC 61666:1997); German version EN 61666:1997— 10 стр.
Identification of equipment terminals and of terminations of certain designated conductors, including general rules of an alphanumeric system (IEC 60445:1988); german version EN 60445:1990
Preparation of documents used in electrotechnology - Part 1: General requirements (IEC 61082-1:1991 + Corr. 11.93); German version EN 61082-1:1993— 75 стр.
Preparation of documents used in electrotechnology - Part 3: Connection diagrams, tables and lists (IEC 61082-3:1993); German version EN 61082-3:1994— 18 стр.
Industrial systems, installations and equipment and industrial products - Structuring principles and reference designations - Part 1: Basic rules (IEC 61346-1:1996); German version EN 61346-1:1996— 37 стр.
Preparation of documents used in electrotechnology - Part 1: General requirements; Amendment A2 (IEC 61082-1:1991/A2:1996); German version EN 61082-1:1993/A2:1996— 11 стр.