IEC 61386-23 pdf download
IEC 61386-23 pdf download Conduit systems for cable management – Part 23: Particular requirements – Flexible conduit systems 1 Scope This clause of part 1 is applicable, except as follows: Addition: This part of IEC 61 386 specifies the requirements for flexible conduit systems. 2 Normative references This clause of part 1 is applicable. 3 Definitions This clause of part...
IEC 61479 pdf download
IEC 61479 pdf download Live working – Flexible conductor covers (line hoses) of insulating material scope This International Standard is applicable to flexible insulating covers (line hoses) for theprotection of workers from accidental contact with live or earthed electrical conductors and forthe avoidance of short circuits during live working. 1.1Classes Five classes of conductor covers，differing in electrical characteristics，are provided anddesignated...
IEC 61676 pdf download
IEC 61676 pdf download Medical electrical equipment – Dosimetric instruments used for non-invasive measurement of X-ray tube voltage in diagnostic radiology 1 scope and object This International Standard specifies the performance requirements of instruments as used inthe NON-INVASIVE MEASUREMENT of X-RAY TUBE VOLTAGE up to 150 kV and the relevantcompliance tests.This standard also describes the method for calibration and gives...
IEC 61800-5-2 pdf download
IEC 61800-5-2 pdf download Adjustable speed electrical power drive systems – Part 5-2: Safety requirements – Functional 1 scope and object This part of lEC 61800 specifies requirements and makes recommendations for the designand development,integration and validation of PDS(SR)s in terms of their functional safetyconsiderations. lt applies to adjustable speed electric drive systems covered by the otherparts of the IEC...
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...
IEC 61822 pdf download
IEC 61822 pdf download Electrical installations for lighting and beaconing of aerodromes – Constant current regulators Terminal blocks or connectors having a minimum voltage rating of 300 V shall be installed in the control cabinet for connection of external wiring associated with monitoring and remote control. Terminal blocks or connectors shall accommodate 0,250 mm 2 to 2,500 mm 2 cable...
IEC 61823 pdf download
IEC 61823 pdf download Electrical installations for lighting and beaconing of aerodromes – AGL series transformers 1 Scope This standard specifies the characteristics of aeronautical ground lighting series transformers(AGLST)used in aeronautical ground lighting for 6,6 A series circuits, at a service voltage ofup to 5 kV, supplied by constant current regulators up to 30 kVA in rating. AGL series transformers...
IEC 61972 pdf download
IEC 61972 pdf download Method for determining losses and efficiency of three-phase cage induction motors 1 Scope This International Standard is applicable to three-phase cage induction motors and establishestwo methods for determination of efficiency: Method 1: for motors tested by using a torque measurement device,with additional load losses derived from measurements; Method 2: for motors tested without torque measurement,with assigned...
IEC 62028 pdf download
IEC 62028 pdf download General methods of measurement for digital television receivers 4 Conceptual block diagram of digital television receivers 4.1 General 4.1 .1 Types of receivers Digital television receivers are usually designed to be capable of receiving digital television signals in a variety of ways. Examples are direct off-air reception or reception via cabled network in the VHF/UHF bands,...
IEC 62122 pdf download
IEC 62122 pdf download Methods of measurement for consumer-use digital VTRs – Electronic and mechanical performances 1Scope and object This standard specifies the basic methods of measurement for evaluating the electronic andmechanical performances of consumer-use digital VTRs. The formats of open reel VTRs,Beta,VHS, and 8 mm VTRs have been standardized.Methods ofmeasurement for these analogue VTRs have been standardized in lEC...