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...
IEC 60052 pdf download
IEC 60052 pdf download.Voltage measurement by means of standard air gaps 1 Scope IEC 60052 sets forth recommendations concerning the construction and use of standard air gaps for the measurement of peak values of the following four types of voltage: a) alternating voltages of power frequencies; b) full lightning impulse voltages; c) switching impulse voltages; d) direct voltages. Air gaps...
IEC 60652 pdf download
IEC 60652 pdf download.Loading tests on overhead line structures 1 Scope This International Standard codifies the methods of testing supports for overhead lines. It is applicable to the testing of supports and structures of overhead lines for voltages above 45 kV; it can also serve as reference to the testing of lower voltage supports. There is no restriction on the...
IEC 61922 pdf download
IEC 61922 pdf download.High-frequency induction heating installations – Test methods for the determination of power output of the generator 1 Scope and object This International Standard is applicable to industrial radio- or high-frequency induction heating installations used for the purpose of thermal applications (e.g. for surface hardening, welding, soldering, melting, forging, zone refining of semiconductors, etc.). This standard relates to...
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 in the NON – INVASIVE MEASUREMENT of X- RAY TUBE VOLTAGE up to 150 kV and the relevant compliance tests. This standard also describes the...
IEC 62133 pdf download
IEC 62133 pdf download.Secondary cells and batteries containing alkaline or other non-acid electrolytes 1 General 1.1 Scope This International Standard specifies requirements and tests for the safe operation of portable sealed secondary cells and batteries (other than button) containing alkaline or other non-acid electrolyte, under intended use and reasonably foreseeable misuse. 1.2 Normative references The following referenced documents are indispensable...