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  2. Utilization categories - Wikipedia

    en.wikipedia.org/wiki/Utilization_categories

    60947-6-2 AC-45a Switching of gas discharge lamps 60947-6-2 AC-45b Switching incandescent lamps 60947-6-2 AC-51 Induction-free or slightly inductive loads, resistance furnaces 60947-4-3 AC-52a Control of the stator winding of a slip-ring motor: 8-hour operation with starting currents for starting processes, maneuvering, operation 60947-4-2 AC-52b

  3. Standard normal table - Wikipedia

    en.wikipedia.org/wiki/Standard_normal_table

    In statistics, a standard normal table, also called the unit normal table or Z table, [1] is a mathematical table for the values of ...

  4. IEC 60269 - Wikipedia

    en.wikipedia.org/wiki/IEC_60269

    In electrical engineering, IEC 60269 is a set of technical standards for low-voltage power fuses. [1] The standard is in four volumes, which describe general requirements, fuses for industrial and commercial applications, fuses for residential applications, and fuses to protect semiconductor devices.

  5. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60246 Connecting wires having a rated voltage of 20 kV and 25 kV d.c. and a maximum working temperature of 105 °C for use in television receivers IEC 60247 Insulating liquids – Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity

  6. Compressibility factor - Wikipedia

    en.wikipedia.org/wiki/Compressibility_factor

    It is useful to note that for N 2 the normal boiling point of the liquid is 77.4 K and the critical point is at 126.2 K and 34.0 bar. Overview of the temperature and pressure dependence of the compressibility factor for N 2. The figure on the right shows an overview covering a wide temperature range.

  7. Normal shock tables - Wikipedia

    en.wikipedia.org/wiki/Normal_shock_tables

    In aerodynamics, the normal shock tables are a series of tabulated data listing the various properties before and after the occurrence of a normal shock wave. [1] With a given upstream Mach number , the post-shock Mach number can be calculated along with the pressure , density , temperature , and stagnation pressure ratios.

  8. Sodium zirconium cyclosilicate - Wikipedia

    en.wikipedia.org/wiki/Sodium_zirconium_cyclosilicate

    In the United States, regulatory approval of ZS-9 was rejected by the Food and Drug Administration (FDA) in May 2016, due to issues associated with manufacturing. [16] On 18 May 2018, the FDA approved sodium zirconium cyclosilicate for treatment of adults with hyperkalemia. [17] It was first practically synthesized by UOP in the late 1990s.

  9. Overshoot (signal) - Wikipedia

    en.wikipedia.org/wiki/Overshoot_(signal)

    In control theory, overshoot refers to an output exceeding its final, steady-state value. [2] For a step input, the percentage overshoot (PO) is the maximum value minus the step value divided by the step value. In the case of the unit step, the overshoot is just the maximum value of the step