IEC 62262 pdf download
IEC 62262 pdf download.Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code) 1 Scope This standard refers to the classification of the degrees of protection provided by enclosures against external mechanical impacts when the rated voltage of the protected equipment is not greater than 72,5 kV. This standard is only applicable to enclosures of...
IEC 61842 pdf download
IEC 61842 pdf download.Microphones and earphones for speech communications 1 Scope This standard applies to the microphone part and earphone part of handsets, headsets or earsets for speech communications, and also to the microphone units and earphone units of built-in handsets, headsets or earsets. The object of this standard is to establish definitions relating to these electroacoustic transducers, and to...
IEC 62278 pdf download
IEC 62278 pdf download,Railway applications – Specification and demonstration of reliability, availability, maintainability and safety (RAMS) 1 Scope 1.1 This International Standard – defines RAMS in terms of reliability, availability, maintainability and safety and their interaction; – defines a process, based on the system life cycle and tasks within it, for managing RAMS; – enables conflicts between RAMS elements to...
IEC 60688 pdf download
IEC 60688 pdf download.Electrical measuring transducers for converting a.c. electrical quantities to analogue or digital signals 1 Scope This International Standard applies to transducers with electrical inputs and outputs for making measurements of a.c. electrical quantities. The output signal may be in the form of an analogue direct current or in digital form. In this instance, that part of the...
IEC 60691 pdf download
IEC 60691 pdf download.Thermal-links – Requirements and application guide 1 Scope and object This International Standard is applicable to thermal-links intended for incorporation in electrical appliances, electronic equipment and component parts thereof, normally intended for use indoors, in order to protect them against excessive temperatures under abnormal conditions. NOTE 1 The equipment need not be designed to generate heat. NOTE...
IEC 60903 pdf download
IEC 60903 pdf download.Live working – Gloves of insulating material 3 Definitions For the purposes of this document, the following terms and definitions apply. 3.1 composite gloves insulating gloves made with integrated mechanical protection [IEV 651-07-11 modified and definition 8.3.1 of IEC 60743] 3.2 insulating gloves gloves made of elastomer or plastic material, used for the protection of the worker...
IEC 61229 pdf download
IEC 61229 pdf download.Rigid protective covers for live working on a.c. installations 1 Scope International Standard IEC 61229 is applicable to rigid insulating covers for live working on a.c. installations, including those described in IEC 60743. The barriers, having dielectric withstand which depends on the positioning clearance, are excluded from this standard. 1.1 Classes Six classes of covers, differing in...
IEC 61821 pdf download
IEC 61821 pdf download.Electrical installations for lighting and beaconing of aerodromes – Maintenance of aeronautical ground lighting constant current series circuits 1 Scope This International Standard applies to the maintenance of AGL constant current series circuits. This International Standard • covers constant current series circuits for AGL installed at aerodromes and heliports; • concentrates on providing the safety requirements for...
IEC 61986 pdf download
IEC 61986 pdf download.Rotating electrical machines – Equivalent loading and super-position techniques – Indirect testing to determine temperature rise 4 General test requirements Measurement of the electrical parameters shall be made as follows. a) The class of accuracy of measuring instruments shall be not greater than 0,2, with the exception of wattmeters with cos ϕ lower than 0,5 and frequency...
IEC 60811-1-3 pdf download
IEC 60811-1-3 pdf download.Common test methods for insulating and sheathing materials of electric and optical cables 1 Scope This section of IEC 6081 1 -1 specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric cables for power distribution and telecom- munications including cables used on ships and in offshore applications. This section three...