IEC 60843-4 pdf download
IEC 60843-4 pdf download Helical-scan video tape cassette system using 8 mm magnetic tape (8 mm video) – Part 4: Video subcode (VSC) 1 General 1.1 Scope This part of lEC 60843 specifies a method of auxiliary data recording and playback withthe IEC 60843 8 mm video system.This part is applicable to both 525 line -60 field and625 line –...
IEC 60872-3 pdf download
IEC 60872-3 pdf download Maritime navigation and radiocommunication equipment and systems – Radar plotting aids – Part 3: Electronic plotting aid (EPA) – Performance requirements – Methods of testing and required test results 1 Scope This part of lEC 60872 specifies the minimum operational and performance requirements,methods of testing and test results for equipment that complies with performance standards notinferior...
IEC 60925 pdf download
IEC 60925 pdf download DC supplied electronic ballasts for tubular fluorescent lamps – Performance requirements This standard specifies general performance requirements for electronic ballasts for use ond.c. supplies having rated voltages not exceeding 250 V, associated with fluorescent lampscomplying with lEC 60081. It shall be read in conjunction with lEC 60924. Performance requirements for electronic ballasts for general， public transport...
IEC 60966-4 pdf download
IEC 60966-4 pdf download Radio frequency and coaxial cable assemblies – Part 4: Sectional specification for semi-rigid coaxial cable assemblies 1 Scope This part of lEC 60966 is a sectional specification that relates to semi-rigid coaxial cableassemblies operating in the transverse electromagnetic mode (TEM). lt establishes uniformrequirements for testing the electrical, mechanical and climatic properties of semi-rigid cableassemblies composed of...
IEC 60999-2 pdf download
IEC 60999-2 pdf download Connecting devices – Electrical copper conductors – Safety requirements for screw-type and screwless-type clamping units Part 2: Particular requirements for clamping units for conductors above 35 mm 2 up to 300 mm 2 (included) This part of lEC 60999 applies to screw-type and screwless-type clamping units forconnecting devices, either as separate entities or as integral parts...
IEC 61094-1 pdf download
IEC 61094-1 pdf download Measurement microphones – Part 1: Specifications for laboratory standard microphones 1Scope This part of lEC 61094 specifies mechanical dimensions and certain electroacoustic characteristics for condenser microphones used as laboratory standards for the realizationof the unit of sound pressure and for sound pressure measurements of the highest attainable accuracy.The specifications are intended to ensure that primary calibration...
IEC 61108-1 pdf download
IEC 61108-1 pdf download Maritime navigation and radiocommunication equipment and systems – Global navigation satellite systems (GNSS) – Part 1: Global positioning system (GPS) – Receiver equipment – Performance standards, methods of testing and required test results 1 Scope This part of lEC 61108 specifies the minimum performance standards,methods of testing andrequired test results for GPs shipborne receiver equipment,based on...
IEC 61131-1 pdf download
IEC 61131-1 pdf download Programmable controllers – Part 1 : General information 1 Scope This Part of lEC 61131 applies to programmable controllers (PLC) and their associated peri-pherals such as programming and debugging tools (PADTs), human-machine interfaces(HMIs)，etc.，which have as their intended use the control and command of machines andindustrial processes. PLCs and their associated peripherals are intended to be used...
IEC 61204-6 pdf download
IEC 61204-6 pdf download Low-voltage power supplies, d.c. output – Part 6: Requirements for low-voltage power supplies of assessed performance This part of lEC 61204 applies to power supplies for general purpose applications.Thesepower supplies carry out an a.c. to d.c.conversion or a d.c. to d.c.conversion.Appropriateprovisions for safety will be found in the relevant product standards. As far as input characteristics...
IEC 61204 pdf download
IEC 61204 pdf download Low-voltage power supply devices, d.c. output – Performance characteristics 1General 1.1Scope and object This international Standard describes a method for specifying requirements for low-voltagepower supply devices (including switching types) providing d.c.output(s) up to 200 v d.c. at apower level of up to 30 kW, operating from a.c. or d.c. source voltages of up to 60o v....