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A collection of featured documents from our library that are popular among our users or otherwise noteworthy.
Adjustable speed electrical power drive systems (PDS) - Part 9-2: Ecodesign for motor systems - Energy efficiency determination and classification
Determination of power losses in high-voltage direct current (HVDC) converter stations
Function blocks (FB) for process control and electronic device description language (EDDL) - Part 2: Specification of FB concept
Devices and integration in enterprise systems - Function blocks (FB) for process control and electronic device description language (EDDL) - Part 3: EDDL syntax and semantics
Devices and integration in enterprise systems - Function blocks (FB) for process control and electronic device description language (EDDL) - Part 4: EDD interpretation
Devices and intergration in enterprise systems - Function blocks (FB) for process control and electronic device description language (EDDL) - Part 5: EDDL Builtin library
Electromechanical elementary relays - Part 10: Additional functional aspects and safety requirements for high-capacity relays
Electromechanical elementary relays - Part 2-1: Reliability - Procedure for the verification of B<sub>10</sub> values
Electromechanical elementary relays - Part 4: General and safety requirements for reed relays
Electromechanical elementary relays - Part 7: Test and measurement procedures
Electromechanical telecom elementary relays of assessed quality - Part 1: Generic specification and blank detail specification
Time relays and coupling relays for industrial and residential use - Part 1: Requirements and tests
Electrical installations for aeronautical ground lighting at aerodromes - Part 1: Fundamental principles
Electrical installations for lighting and beaconing of aerodromes - Part 1-2: Fundamental principles - Particular requirements for series circuits
Electrical installations for lighting and beaconing of aerodromes - Part 3-2: Requirements for power supplies - Particular requirements for series circuits
Electrical installations for lighting and beaconing of aerodromes - Part 3-4: Safety secondary circuits in series circuits - General safety requirements
Electrical installations for lighting and beaconing of aerodromes - Maintenance of aeronautical ground lighting constant current series circuits
Electrical installations for lighting and beaconing of aerodromes - AGL series transformers
Ultrasonics - Transducers - Definitions and measurement methods regarding focusing for the transmitted fields
Photovoltaic (PV) array - On-site measurement of current-voltage characteristics
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 1: General specifications
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 10: DTV format
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 11: HDV format for 1080i and 720p systems
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 2: SD format for 525-60 and 625-50 systems
Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 3: HD format for 1125-60 and 1250-50 systems