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2. Volt-ampere - Wikipedia

   en.wikipedia.org/wiki/Volt-ampere

   The volt-ampere (SI symbol: VA, [1] sometimes V⋅A or V A) is the unit of measurement for apparent power in an electrical circuit. It is the product of the root mean square voltage (in volts) and the root mean square current (in amperes). [2] Volt-amperes are usually used for analyzing alternating current (AC) circuits.

3. Glossary of electrical and electronics engineering - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_electrical_and...

   A material that does not allow free flow of electric current. digital audio broadcasting Transmission of sound by digital signals over radio. digital circuit A circuit where all points on the signal path have only one of two states. digital computers A computer made of digital circuits. digital control

4. International Electrotechnical Vocabulary - Wikipedia

   en.wikipedia.org/wiki/International_Electro...

   By 1914, the IEC had issued a first list of terms and definitions covering electrical machinery and apparatus, a list of international letter symbols for quantities and signs for names of units, a list of definitions in connection with hydraulic turbines, and a number of definitions and recommendations relating to rotating machines and ...

5. Reference designator - Wikipedia

   en.wikipedia.org/wiki/Reference_designator

   The IEEE 315 standard contains a list of Class Designation Letters to use for electrical and electronic assemblies. For example, the letter R is a reference prefix for the resistors of an assembly, C for capacitors, K for relays. Industrial electrical installations often use reference designators according to IEC 81346.

6. Extra-low voltage - Wikipedia

   en.wikipedia.org/wiki/Extra-low_voltage

   AS/NZS 3000 Wiring Rules define "extra low voltage" as "Not exceeding 50 V AC or 120 V ripple-free DC" However, AS/ACIF S009 Clause 3.1.78.1 Extra-Low Voltage (ELV)states: "a voltage not exceeding 42.4 V peak or 60 V DC [AS/NZS 60950.1:2003]" and adds a note: "This definition differs from the ELV definition contained in AS/NZS 3000:2000" which ...

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9. List of IEC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_IEC_standards

   IEC 62223 Insulators – Glossary of terms and definitions; IEC TS 62224 Multimedia home server systems – Conceptual model for digital rights management; IEC 62226 Exposure to electric or magnetic fields in the low and intermediate frequency range – Methods for calculating the current density and internal electric field induced in the human ...