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United power system and isolated power systems. Relay protection and automation. Distance and overcurrent protection of power lines and utilities 330 kV and above. Functional requirements
Document status: Active
Electric light sources. Methods of measuring of electrical and luminous characteristics
Document status: Active
Urea for industrial use. Photometric method for determination of biuret content
Document status: Cancelled
Fixed electric double-layer capacitors for use in electric and electronic equipment. Part 2. Group specification for capacitors for power electric and electronic equipment
Document status: Active