This section of IEC 6021 6 specifies the experimental and calculation procedures for deriving the thermal endurance characteristics, temperature index (TI), and relative thermal endurance index (RTE) of a material using the “fixed time frame method (FTFM)”. In this protocol, aging takes place over a small number of fixed times, utilizing the appropriate number of […]

This section of IEC 6021 6 outlines the calculation methods for deriving thermal endurance characteristics from experimental data collected in accordance with the guidelines of IEC 6021 6-1 and IEC 6021 6-2, utilizing fixed aging temperatures and varying aging durations. The experimental data can be obtained through non-destructive, destructive, or proof tests. It is important

Section 4 of IEC 6021 is crafted to facilitate the selection of tap-changers that comply with the specifications outlined in IEC 6021 4-1, specifically for integration with transformers’ or reactors’ tapped windings. Additionally, it aims to enhance comprehension of the diverse types of tap-changers and the related equipment that are available. This application guide encompasses

This part of IEC 60191 provides guidelines for the preparation of schematic drawings for discrete devices. For the preparation of schematic drawings for surface-mounted discrete devices, it is also recommended to refer to IEC 60191-6. The primary purpose of these drawings is to indicate the space that should be allocated for devices within an equipment,

This section of IEC 60189 pertains to equipment wires featuring solid or stranded conductors, insulated with polyvinyl chloride (PVC), available in single, paired, and triple configurations. These wires are intended for use in the internal wiring of telecommunication, industrial, and consumer electronic equipment. NOTE: It is the manufacturer’s responsibility to implement quality assurance through quality