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IEC 61643-352:2018 - Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
January 10, 2018 - IEC - International Electrotechnical Commission

IEC 61643-352:2018 covers the application of surge isolation transformers (SITs) that are used in telecommunication transformer applications with signal levels up to 400 V peak to peak. These transformers have a high rated impulse voltage with or without screen between...

IEC 62271-209:2019 - High-voltage switchgear and controlgear - Part 209: Cable connections for gas-insulated metal-enclosed switchgear for rated voltages above 52 kV - Fluid-filled and extruded insulation cables - Fluid-filled and dry-type cable-terminations
February 8, 2019 - IEC - International Electrotechnical Commission

IEC 62271-209:2019 is available as IEC 62271-209:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62271-209:2019 covers the connection assembly...

IEC 62271-209:2019 RLV - High-voltage switchgear and controlgear - Part 209: Cable connections for gas-insulated metal-enclosed switchgear for rated voltages above 52 kV - Fluid-filled and extruded insulation cables - Fluid-filled and dry-type cable-terminations
February 8, 2019 - IEC - International Electrotechnical Commission

IEC 62271-209:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the...

IEC 61643-351:2016 - Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
October 28, 2016 - IEC - International Electrotechnical Commission

IEC 61643-351:2016 defines test circuits and test methods for determining and verifying the SIT surge parameters. Preferred performance values for key parameters are given. Surge isolation transformers (SITs) are used for signal transformer...

IEC 62751-2:2014+AMD1:2019 CSV - Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 2: Modular multilevel converters
August 23, 2019 - IEC - International Electrotechnical Commission

IEC 62751-2:2014+A1:2019 gives the detailed method to be adopted for calculating the power losses in the valves for an HVDC system based on the "modular multi-level converter", where each valve in the converter consists of a number...

IEC 62734:2014+AMD1:2019 CSV - Industrial networks - Wireless communication network and communication profiles - ISA 100.11a
July 31, 2019 - IEC - International Electrotechnical Commission

IEC 62734:2014+A1:2019 provides specifications in accordance with the OSI Basic Reference Model, ISO/IEC 7498-1, (e.g., PhL, DL, etc.). It is intended to provide reliable and secure wireless operation for non-critical monitoring, alerting, supervisory control, open loop...

IEC 62734:2014/AMD1:2019 - Amendment 1 - Industrial networks - Wireless communication network and communication profiles - ISA 100.11a
July 31, 2019 - IEC - International Electrotechnical Commission
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ST 430-12:2014 Am1:2019 - D-Cinema Operations - FSK Synchronization Signal
2019 Edition, June 25, 2019 - Society of Motion Picture and Television Engineers

The purpose of this amendment is to document a Universal Label that identifies the FSK synchronization signal specified in ST 430-12.

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