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2. Utilization categories - Wikipedia

   en.wikipedia.org/wiki/Utilization_categories

   60947-4-3 AC-55b Switching incandescent lamps 60947-4-3 AC-56a Switching transformers 60947-4-3 AC-56b Switching of capacitor batteries 60947-4-3 AC-58a Control of a hermetically sealed refrigeration compressor motor with automatic reset of overload releases: 8-hour operation with starting currents for starting, maneuvering, operation 60947-4-2

3. Contactor - Wikipedia

   en.wikipedia.org/wiki/Contactor

   Example IEC categories in standard 60947 are described as: AC-1 - Non-inductive or slightly inductive loads, resistance furnaces; AC-2 - Starting of slip-ring motors: starting, switching-off; AC-3 - Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))

4. List of IEC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_IEC_standards

   IEC 60669 Switches for household and similar fixed-electrical installations ... IEC 60947 Low-voltage switchgear and control gear ... IEC 62057-3 Electrical energy ...

5. Reference designator - Wikipedia

   en.wikipedia.org/wiki/Reference_designator

   IEC 113 (Superseded by IEC 750, i.e. IEC 60750.) IEC 750-1983 (AS 3702 is equivalent, but provides extra information.) IEEE 315-1975 / ANSI Standard Y32.2. Annex F: "Cross reference list of Class Designation Letters" compares IEC 113-2:1971 to the IEEE/ANSI standard. * AS 1102 and IEC 60617 for "Graphical Symbols for Electrotechnology".

6. IO-Link - Wikipedia

   en.wikipedia.org/wiki/IO-Link

   At the master pin 1 to pin 3 provides 24V DC power with max. 200 mA for an optional power supply of the IO-Link device. Pin 4 is used as a digital input (DI) or digital output (DO) according to the IEC 61131-2 specification to allow backward compatibility to proximity sensors according to IEC60947-5-2 or other sensors or electrical switches.

7. Electrical code - Wikipedia

   en.wikipedia.org/wiki/Electrical_code

   The Canadian code reprints Chapter 13 of IEC 60364, but there are no numerical criteria listed in that chapter to assess the adequacy of any electrical installation. Although the US and Canadian national standards deal with the same physical phenomena and broadly similar objectives, they differ occasionally in technical detail.

8. Margaret C. Whitman - Pay Pals - The Huffington Post

   data.huffingtonpost.com/paypals/margaret-c-whitman

   From January 2008 to December 2012, if you bought shares in companies when Margaret C. Whitman joined the board, and sold them when she left, you would have a -69.9 percent return on your investment, compared to a -2.8 percent return from the S&P 500.

9. DNP3 - Wikipedia

   en.wikipedia.org/wiki/DNP3

   The Remote Terminal Unit is initially interrogated with what DNP3 terms an "Integrity Poll" (a combined Read of Class 1, 2, 3 and 0 data). This causes the Remote Terminal Unit to send all buffered events and also all static point data to the Master station. Following this, the Master polls for the event data by reading Class 1, Class 2 or Class 3.