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The vector group provides a simple way of indicating how the connections of a transformer are arranged. In the system adopted by the IEC, the vector group is indicated by a code consisting of two or three letters, followed by one or two numeric digits. The letters indicate the winding configuration as follows:
IEC 60051 Direct acting indicating analogue electrical measuring instruments and their accessories; IEC 60052 Voltage measurement by means of standard air gaps; IEC 60055 Paper-insulated metal-sheathed cables for rated voltages up to 18/30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables)
The International Electrotechnical Commission (IEC; French: Commission électrotechnique internationale) is an international standards organization [3] [4] that prepares and publishes international standards for all electrical, electronic and related technologies – collectively known as "electrotechnology".
Wire crossover symbols for circuit diagrams. The CAD symbol for insulated crossing wires is the same as the older, non-CAD symbol for non-insulated crossing wires. To avoid confusion, the wire "jump" (semi-circle) symbol for insulated wires in non-CAD schematics is recommended (as opposed to using the CAD-style symbol for no connection), so as to avoid confusion with the original, older style ...
ISO/IEC 14496 scene description section. 5 0x05 ISO/IEC 14496 object description section. 6 0x06 Metadata section. 7 0x07 ISO/IEC 13818-11 IPMP control information (DRM). 8 - 57 0x08 - 0x39 Reserved. 58 0x3A ISO/IEC 13818-6 DSM CC multiprotocol encapsulated. 59 0x3B ISO/IEC 13818-6 DSM CC U-N messages. 60 0x3C ISO/IEC 13818-6 DSM CC Download ...
UL-94 is now harmonized with IEC 60695-11-10 and 60695-11-20 and ISO 9772 and 9773. [2] The VW-1 (vertical wire burn) rating is sometimes erroneously associated with UL 94, but it (and some other flammability tests) is described by UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords).
A Canadian woman was arrested after trying to smuggle over 20 pounds of methamphetamine through a New Zealand airport, authorities said. The illicit drugs were disguised as Christmas presents, New ...
A dielectric voltage withstand test (also known as a hipot test) is done by applying a voltage higher than operating voltage to the device or installation under test. In this test, the electric insulation of a product or installation is put under a voltage stress much higher than its normal operating voltage.