Online Standards Store PDF
United power system and isolated power systems. Relay protection and automation. Distance and overcurrent protection of power lines and utilities 110–220 kV. Functional requirements
Document status: Active
Hexagon castle nuts with reduced width across flat with thread diameter over 48 mm product grade A. Design and dimensions
Document status: Active
State system for ensuring the uniformity of measurements. Cold water meters. Verification methods and means
Document status: Active
Electroacoustics. Hearing aids. Part 8. Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
Document status: Active
Suspended cableways for transportation of people. Communication and notification system. Safety requirements
Document status: Active