LED packages - Long-term luminous and radiant flux maintenance projection
IEC 63013:2017+A1:2021 is applicable to LED packages for general lighting services. It specifies procedures and conditions for measuring the luminous flux maintenance of LED packages. It also provides the procedures and conditions (criteria) of projecting the long-term luminous flux maintenance based on limited luminous flux maintenance test data collected. Within the context of this document,…
LED encapsulées - Projection à long terme concernant la conservation du flux lumineux et du flux éne...
L'IEC 63013:2017+A1:2021 est applicable aux LED encapsulées d'utilisation courante. Elle spécifie les procédures et les conditions pour mesurer la conservation du flux lumineux des LED encapsulées. Elle stipule également les procédures et les conditions (critères) de projection de la conservation du flux lumineux à long terme en se fondant sur des données d'essais collectées de la…
Amendment 2 - Performance of high-voltage direct current (HVDC) systems with line-commutated convert...
IEC TR 60919-3:2009+A1:2016+A2:2021 provides general guidance on the dynamic performance of high-voltage direct current (HVDC) systems. Dynamic performance is meant to include those events and phenomena whose characteristic frequencies or time domain cover the range between transient conditions and steady state. Diode valves are not considered in this specification. This report (IEC 60919-3)…
Metallic coatings — Test methods for electrodeposited gold and gold alloy coatings — Part 3: Electro...
This document specifies four electrographic tests for assessing the porosity of electrodeposited gold and gold alloy coatings for engineering, and decorative and protective purposes.
