Fibre optic interconnecting devices and passive components - Fibre optic connector interfaces - Part 7-4: Type MPO connector family - One fibre rows 16 fibre wide (IEC 86B/4090/CD:2017)
Edition 2018-01

Guide for procurement of power station equipment - Part 4-7: Boiler auxiliaries; ash handling plant; German version EN 45510-4-7:1999
Edition 1999-06

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-7: Portable low voltage decoupling filters - Safety requirements; German and English version prEN 50065-4-7:2021
Edition 2021-09

Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications - Part 7-4: LC-PC simplex terminated on IEC 60793-2-50 category B1.1 and B1.3 singlemode fibre with full zirconia ferrule for category C; German version EN 50377-7-4:2011
Edition 2012-01

All-or-nothing electrical relays - Tests and Measurements - Part 7-4: Dielectric strength test, impulse voltage test (IEC 94/640/CD:2022); Text in German and English
Edition 2022-08

Electricity metering data exchange - The DLMS/COSEM suite - Part 4-7: DLMS/COSEM transport layer for IP networks (IEC 62056-4-7:2015); English version EN 62056-4-7:2016
Edition 2017-07

Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization (IEC 101/629/CD:2021); Text in German and English
Edition 2022-11

Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes (IEC 61850-7-4:2010 + A1:2020); English version EN 61850-7-4:2010 + A1:2020
Edition 2022-07