IEC 61888 pdf download
IEC 61888 pdf download.Nuclear power plants – Instrumentation important to safety – Determination and maintenance of trip setpoints 1 Scope This standard defines the requirements for assuring that automatic setpoints for nuclear safety system instrumentation (as defined in clause 3), are established and maintained within specified limits in nuclear power plants and nuclear reactor facilities. 2 Normative references The following...
IEC 60984 pdf download
IEC 60984 pdf download.Sleeves of insulating material for live working 1 Scope This international standard is applicable to insulating sleeves for the protection of workers from accidental contact with live electrical conductors, apparatus or circuits. 1.1 Five classes of sleeve, differing in electrical characteristics, are provided and designated as: Class 0, Class 1, Class 2, Class 3 and Class 4....
IEC 60622 pdf download
IEC 60622 pdf download.Secondary cells and batteries containing alkaline or other non-acid electrolytes – Sealed nickel-cadmium prismatic rechargeable single cells 1 General 1.1 Scope This International standard specifies marking, tests and requirements for sealed nickel- cadmium prismatic secondary single cells. NOTE In this context “prismatic” refers to cells having rectangular sides and bases. Where there exists an IEC standard specifying...
IEC 62122 pdf download
IEC 62122 pdf download.Methods of measurement for consumer-use digital VTRs – Electronic and mechanical performances 1 Scope and object This standard specifies the basic methods of measurement for evaluating the electronic and mechanical performances of consumer-use digital VTRs. The formats of open reel VTRs, Beta, VHS, and 8 mm VTRs have been standardized. Methods of measurement for these analogue VTRs...
IEC 62090 pdf download
IEC 62090 pdf download.Product package labels for electronic components using bar code and two-dimensional symbologies 1 Scope and object This standard applies to labels on the packaging of electronic components for automatic handling. These labels use linear bar code and two-dimensional (2D) symbols. Labels for direct product marking and shipping labels are excluded. Labels required on the packaging of electronic...
IEC 60038 pdf download
IEC 60038 pdf download.IEC standard voltages 1 Nominal system voltage Voltage by which a system is designated. 2 Highest and lowest voltages of a system (excluding transient or abnormal conditions) 2.1 Highest voltage of a system The highest value of voltage which occurs under normal operating conditions at any time and at any point on the system. It excludes voltage...
IEC 60895 pdf download
IEC 60895 pdf download.Live working – Conductive clothing for use at nominal voltage up to 800 kV a.c. and ± ±600 kV d.c. 1 Scope This International Standard is applicable to conductive clothing, either assembled from component parts or forming a single complete clothing, worn by (electrically) skilled persons during live working (especially bare-hand working) at a nominal power system...
IEC 61111 pdf download
IEC 61111 pdf download.Matting of insulating material for electrical purposes 1 Scope This International Standard is applicable to insulating matting made of elastomer for use as a floor covering for the electrical protection of workers on a.c. and d.c. installations. 1.1 Classes Five classes for matting, differing in electrical characteristics, are provided and designated as: class 0, class 1, class...
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 of up to 5 kV, supplied by constant current regulators up to 30 kVA in rating. AGL...
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 establishes two 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...