IEC 61869-15-2018 pdf download
IEC 61869-15-2018 pdf download.Instrument transformers – Part 15: Additional requirements for voltage transformers for DC applications. 5 Ratings 5.1 General Subclause 5.1 of IEC 61 869-1 :2007 is replaced by the following one: If applicable, the ratings of voltage transformers, including their auxiliary equipment, shall be selected from the following...
IEC 61869-14-2018 pdf download
IEC 61869-14-2018 pdf download.Instrument transformers – Part 14: Additional requirements for current transformers for DC applications. This part of IEC 61 869 provides all requirements specific to current transformers to be used in DC applications (DCCTs), whatever the technology used. The output signal can be analogue or digital. It is...
IEC 61788-23-2021 pdf download
IEC 61788-23-2021 pdf download.Superconductivity – Part 23: Residual resistance ratio measurement – Residual resistance ratio of cavity-grade Nb superconductors. 4 Principle The 4-point DC electrical resistance technique shall be performed both at room temperature and at cryogenic temperature. The test may be done either as a function of temperature or...
IEC 61788-17-2021 pdf download
IEC 61788-17-2021 pdf download.Superconductivity – Part 17: Electronic characteristic measurements – Local critical current density and its distribution in large-area superconducting films. 7 Uncertainty in the test method 7.1 Major sources of systematic effects that affect the U 3 measurement The most significant systematic effect on the U 3 measurement...
IEC 61788-7-2020 pdf download
IEC 61788-7-2020 pdf download.Superconductivity – Part 7: Electronic characteristic measurements – Surface resistance of high‑temperature superconductors at microwave frequencies. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references,...
IEC 61788-4-2020 pdf download
IEC 61788-4-2020 pdf download.Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb‑Ti and Nb 3 Sn composite superconductors. This part of IEC 61 788 specifies a test method for the determination of the residual resistance ratio (RRR) of Nb-Ti and Nb 3 Sn composite superconductors...
IEC 61788-4-2016 pdf download
IEC 61788-4-2016 pdf download.Superconductivity – Part 4: Residual resistance ratio measurement – Residual resistance ratio of Nb-Ti and Nb 3 Sn composite superconductors. 4 Principle The resistance measurement both at room and cryogenic temperatures shall be performed with the four-terminal technique. All measurements are done without an applied magnetic field....
IEC 61754-31-2016 pdf download
IEC 61754-31-2016 pdf download.Fibre optic interconnecting devices and passive components – Fibre optic connector interfaces – Part 31: Type N-FO connector family. This part of IEC 61 754 defines the standard connector interface dimensions for the two way and four way type N-FO family of connectors. 2 Normative references The...
IEC 61636-2021 pdf download
IEC 61636-2021 pdf download.Software Interface for Maintenance Information Collection and Analysis (SIMICA). Software Interface for Maintenance Information Collection and Analysis (SIMICA) is a family of IEEE standards, associated web ontologies (OWL), and extensible markup language (XML) schemas which allow automatic test system (ATS), test result and session information, and maintenance...
IEC 61591-2019 pdf download
IEC 61591-2019 pdf download.Cooking fume extractors – Methods for measuring performance. This document applies to cooking fume extractors incorporating a fan for the recirculation or extraction mode situated in a household kitchen. It can also be used for cooking fume extractors where the fan is mounted separately from the appliance,...