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IEC 61158-4-25 Ed. 1.0 b:2019

Industrial communication networks – Fieldbus specifications – Part 4-25: Data-link layer protocol specification – Type 25 elements
standard by International Electrotechnical Commission, 04/10/2019

IEC 60433 Ed. 3.0 b:2021

Insulators for overhead lines with a nominal voltage above 1 000 V – Ceramic insulators for a.c. systems – Characteristics of insulator units of the long rod type
standard by International Electrotechnical Commission, 01/12/2021

IEC 61158-6-15 Ed. 2.0 b:2010

Industrial communication networks – Fieldbus specifications – Part 6-15: Application layer protocol specification – Type 15 elements
standard by International Electrotechnical Commission, 08/06/2010

IEC 60794-3-12 Ed. 3.0 b:2021

Optical fibre cables – Part 3-12: Outdoor cables – Detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling
standard by International Electrotechnical Commission, 01/27/2021

IEC 61158-4-12 Ed. 4.0 b:2019

Industrial communication networks – Fieldbus specifications – Part 4-12: Data-link layer protocol specification – Type 12 elements
standard by International Electrotechnical Commission, 04/18/2019

IEC 60794-1-403 Ed. 1.0 b:2021

Optical fibre cables – Part 1-403: Generic specification – Basic optical cable test procedures – Electrical test methods – Electrical continuity test of cable metallic elements, method H3
standard by International Electrotechnical Commission, 04/26/2021

IEC 60269-6 Amd.1 Ed. 1.0 b:2021

Amendment 1 – Low-voltage fuses – Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems
Amendment by International Electrotechnical Commission, 04/09/2021