Insulating liquids. Determination of contamination by polychlorinated biphenyls (PCBs) by capillary column gas chromatography method

Standard published on 1.7.2016

Enclosed low-voltage switchgear and controlgear assemblies. Guide for testing under conditions of arcing due to internal fault

Standard published on 1.1.2023

Low-voltage surge protective devices. Part 11. Surge protective devices connected to low-voltage power systems. Requirements and test methods

Standard published on 1.1.2015

Low-voltage surge protective devices. Part 12. Surge protective devices connected to low-voltage power distribution systems. Selection and application principles

Standard published on 1.3.2023

Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods

Standard published on 1.10.2015

Low-voltage impulse surge protective devices. Part 22. Surge protective devices connected to telecommunications and signaling networks. Selection and application principles

Standard published on 1.3.2023

Low-voltage surge protective devices. Part 31. Requirements and test methods for SPDs for photovoltaic installations

Standard published on 1.11.2024

Low-voltage surge protective devices. Part 32. Surge protective devices connected to the d.c. side of photovoltaic installations. Selection and application principles

Standard published on 1.3.2022

Components for low-voltage surge protection. Part 331. Performance requirements and test methods for metal oxide varistors (MOV)

Standard published on 1.8.2026

Thin-film terrestrial photovoltaic modules. Procedure of tests for the prove of conformity of functional characteristics

Standard published on 1.1.2015