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Electrical relays. Part 12. Directional relays and power relays with two input energizing quantities

Document status: Active

Low-voltage switchgear and controlgear. Part 5-4. Control circuit devices and switching elements. Method of assessing the performance of low-energy contacts. Special tests

Document status: Active

Water-tube boilers and auxiliary installations. Part 7. Requirements for equipment for the boiler

Document status: Active

Aircraft batteries. Part 1. General test requirements and performance levels

Document status: Active

Low-voltage switchgear and controlgear. Part 5-2. Control circuit devices and switching element. Proximity switches

Document status: Replaced by GOST IEC 60947-5-2-2024

Plastic covers for cylindrical connectors. Specifications

Document status: Active