IEC 60050-444:2002 pdf download
IEC 60050-444:2002 pdf download.International Electrotechnical Vocabulary Part 444: Elementary relays 1 Scope In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electrical relays. In order to improve the precision of terms and definitions as well as the general visibility of relay terminology, it had been decided to split that part of the...
IEC 60325:2002 pdf download
IEC 60325:2002 pdf download.Radiation protection instrumentation – Alpha, beta and alpha/beta (beta energy >60 keV) contamination meters and monitors 1 Scope and object This International Standard is applicable to radiation meters and monitors designed for the direct measurement or the direct detection of surface contamination by alpha and/or beta radiation emitting nuclides and which comprise at least: – a detection...
IEC TS 62786:2017 pdf download
IEC TS 62786:2017 pdf download.Distributed energy resources connection with the grid 1 Scope and object This technical specification provides principles and technical requirements for distributed energy resources (DERs) connected to the distribution network. It applies to the planning, design, operation and connection of DERs to distribution networks. It includes general requirements, connection scheme, choice of switchgear, normal operating range, immunity...
IEC TS 62903:2018 pdf download
IEC TS 62903:2018 pdf download.Ultrasonics – Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method 1 Scope This document, which is a Technical Specification, a) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic transducer calibration, b) establishes the measurement conditions and experimental procedure required to determine the transducer’s electroacoustic parameters and...
IEC TS 62229:2017 pdf download
IEC TS 62229:2017 pdf download.Multimedia systems and equipment – Multimedia e-publishing and e-book – Conceptual model for multimedia e-publishing 1 Scope This document describes a conceptual model for multimedia e-publishing and e-book. The conceptual model is specified from the standardization point of view in order to clarify the functionality of e-publishing/e-book components and the relationships between them and to define...
IEC TR 63167:2018 pdf download
IEC TR 63167:2018 pdf download.Assessment of contact current related to human exposure to electric, magnetic and electromagnetic fields 1 Scope This document, which is a Technical Report, provides general information on the assessment of contact current related to human exposure to electric, magnetic and electromagnetic fields. The contact currents in this context occur when a human body comes into contact...
IEC 60038:2002 pdf download
IEC 60038:2002 pdf download.IEC standard voltages This publication applies to: – a.c. transmission, distribution and utilization systems and equipment for use in such systems with standard frequencies 50 Hz and 60 Hz having a nominal voltage above 100 V; – a.c. and d.c. traction systems; – a.c. and d.c. equipment having nominal voltages below 120 V a.c. or below 750...
IEC TS 63066:2017 pdf download
IEC TS 63066:2017 pdf download.Low-voltage docking connectors for removable energy storage units 1 Scope This document applies to docking connectors (hereinafter referred to as accessories) incorporated in or fixed to electrical equipment, intended to connect removable energy storage units to a dedicated electric power conversion unit, to an energy consuming unit or to another energy storage unit. These accessories are...
IEC TS 63053:2017 pdf download
IEC TS 63053:2017 pdf download.General requirements for residual current operated protective devices for DC systems 1 Scope This document provides general minimum requirements, recommendations and information for the drafting and testing procedures of standards for residual current operated protective devices, intended to be used in DC systems having a rated voltage not exceeding 400 V DC and a rated current...
IEC TS 62915:2018 pdf download
IEC TS 62915:2018 pdf download.Photovoltaic (PV) modules – Type approval, design and safety qualification – Retesting 1 Scope This document sets forth a uniform approach to maintain type approval, design and safety qualification of terrestrial PV modules that have undergone, or will undergo modification from their originally assessed design. Changes in material selection, components and manufacturing process can impact electrical...