IEC 60770-1 pdf download
IEC 60770-1 pdf download Transmitters for use in industrial-process control systems – Part 1: Methods for performance evaluation 1 Scope and object This part of IEC 60770 is applicable to transmitters which have either a standard analogue electric current output signal or a standard pneumatic output analogue signal in accordance with IEC 60381 -1 or IEC 60382. The tests detailed...
IEC 60770-2 pdf download
IEC 60770-2 pdf download Transmitters for use in industrial-process control systems – Part 2: Methods for inspection and routine testing 1 scope and object This part of lEC 60770 is applicable to transmitters，which have either a standard analogueelectric current output signal or a standard pneumatic output analogue signal in accordancewith IEC 60381-1 or lEC 60382.The tests detailed herein may be...
IEC 61158-3-21 pdf download
IEC 61158-3-21 pdf download Industrial communication networks – Fieldbus specifications – Part 3 21: Data-link layer service definition – Type 21 elements 3.5.2 Additional conventions In the diagrams illustrating the DLS and DLM interfaces, dashed lines indicate cause and effect or time sequence relationships between actions at different stations, while solid lines with arrows indicate cause and effect time sequence...
IEC 61158-3-22 pdf download
IEC 61158-3-22 pdf download Industrial communication networks – Fieldbus specifications – Part 3-22: Data-link layer service definition – Type 22 elements 1 1.1 Scope General This part of IEC 61 1 58 provides common elements for basic time-critical messaging communications between devices in an automation environment. The term “time-critical” is used to represent the presence of a time-window, within which...
IEC 61210 pdf download
IEC 61210 pdf download Connecting devices – Flat quick-connect terminations for electrical copper conductors – Safety requirements 1Scope This International Standard applies to non-insulated flat quick-connect terminations consistingof a male tab of size 2,8 mm, 4,8 mm, 6,3 mm or 9,5 mm with hole or dimple detents and amating female connector for use as either an incorporated or an integrated...
IEC 61280-1-3 pdf download
IEC 61280-1-3 pdf download Fibre optic communication subsystem test procedures – Part 1-3: General communication subsystems – Central wavelength and spectral width measurement 4 Apparatus 4.1 Calibrated optical spectrum analyzer This special-purpose test equipment uses a dispersive spectrophotometric method to resolve and record the optical spectral distribution. The required wavelength resolution and range depends on the type and variety of...
IEC 61280-2-1 pdf download
IEC 61280-2-1 pdf download Fibre optic communication subsystem test procedures – Part 2-1: Digital systems – Receiver sensitivity and overload measurement 1 Scope and object This part of IEC 61 280 describes the test procedures applicable to digital fibre optic communication and data systems. The object of this test procedure is to measure the minimum and maximum optical powers required...
IEC 61300-2-6 pdf download
IEC 61300-2-6 pdf download Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 2-6: Tests – Tensile strength of coupling mechanism 1 Scope This part of IEC 61 300 describes a test to ensure that the coupling mechanism of a connector set or connector and device combination will withstand the axial loads likely to...
IEC 61300-3-22 pdf download
IEC 61300-3-22 pdf download Fibre optic interconnecting devices and passive components – Basic test and measurement procedures – Part 3-22: Examinations and measurements – Ferrule compression force 1Scope This part of lEC 61300 describes the procedure to measure the spring-loaded force applied toa ferrule when the plugs mate with each other during normal service. This measurementprocedure is applicable to a...
IEC 61400-1 pdf download
IEC 61400-1 pdf download Wind turbines – Part 1: Design requirements 6.3.2.6 Extreme wind shear (EWS) Replace the number 2,5 in equations (26) and (27) to 2,5 [m/s]. (The number 2,5 in equations (26) and (27) is not dimensionless.) 7 Structural design 7.4.2 Power production plus occurrence of fault or loss of electrical network connection (DLC 2.1 – 2.4) Add,...