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2. List of IEC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_IEC_standards

   IEC 60642 Piezoelectric ceramic resonator units. IEC 60644 Specification for high-voltage fuse-links for motor circuit applications. IEC 60645 Electroacoustics – Audiometric equipment. IEC 60648 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation.

3. Measurement category - Wikipedia

   en.wikipedia.org/wiki/Measurement_category

   Measurement category. Measurement category is a method of classification by the International Electrotechnical Commission (IEC) [1] of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or industrial). The categories take into account the total continuous ...

4. IEC 60309 - Wikipedia

   en.wikipedia.org/wiki/IEC_60309

   Pilot Pin. (optional) last-make, first-break to control arcing. IEC 60309 (formerly IEC 309 and CEE 17, also published by CENELEC as EN 60309) is a series of international standards from the International Electrotechnical Commission (IEC) for "plugs, socket-outlets and couplers for industrial purposes".

5. Utilization categories - Wikipedia

   en.wikipedia.org/wiki/Utilization_categories

   The "Utilization category" are mainly categorized in IEC 60947 in the following volume: Volume 1: General requirements. Volume 2: Circuit-breakers. Volume 3: Circuit-breakers, circuit-breakers, switch-disconnectors and switch-fuse units. Volume 4-1: Contactors and motor starters; electromechanical contactors and motor starters [1]

6. IEC 60204 - Wikipedia

   en.wikipedia.org/wiki/IEC_60204

   IEC 60204-1 is scoped to cover the electrical equipment of machines that operate in the low-voltage range, generally accepted to be 1000 V a.c. or less, or 1500 V d.c. or less. Equipment within the scope is typically built from off-the-shelf components assembled into a suitable electrical enclosure, with the necessary interconnecting wiring and ...

7. Circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Circuit_breaker

   A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry ( overcurrent ). Its basic function is to interrupt current flow to protect equipment and to prevent fire. Unlike a fuse, which operates once and then must be replaced, a ...