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  2. Worst-case circuit analysis - Wikipedia

    en.wikipedia.org/wiki/Worst-case_circuit_analysis

    In addition to a circuit analysis, a WCCA often includes stress and derating analysis, failure modes and effects criticality and reliability prediction . The specific objective is to verify that the design is robust enough to provide operation which meets the system performance specification over design life under worst-case conditions and ...

  3. National Electrical Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Code

    The NEC specifies acceptable numbers of conductors in crowded areas such as inside conduit, referred to as the fill rating. If the accepted fill rating is exceeded, then all the cables in the conduit are derated, lowering their acceptable maximum ambient operating temperature. Derating is necessary because multiple conductors carrying full-load ...

  4. Derating - Wikipedia

    en.wikipedia.org/wiki/Derating

    Derating curves are included in data sheets for such capacitors. Derating can also provide a safety margin for transient voltages or currents (spikes) that exceed normal operation or prolong life. For example, the life of electrolytic capacitors is dramatically increased by operating them below their maximum temperature rating.

  5. Flow in partially full conduits - Wikipedia

    en.wikipedia.org/.../Flow_in_partially_full_conduits

    The variations of Q/Q (full) and V/V (full) with H/D ratio is shown in figure(b).From the equation 5, maximum value of Q/Q (full) is found to be equal to 1.08 at H/D =0.94 which implies that maximum rate of discharge through a conduit is observed for a conduit partly full.

  6. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    This is similar to the preceding, but rated for dry or wet environments and conductor temperatures up to 75 °C (167 °F), [18] and is commonly used in subsurface conduits which may fill with water. A great deal of THWN wire is actually dual-rated, and meets THHN the specification as well, so may be used in wet environments up to 75°C or dry ...

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  8. Neher–McGrath method - Wikipedia

    en.wikipedia.org/wiki/Neher–McGrath_method

    In electrical engineering, Neher–McGrath is a method of estimating the steady-state temperature of electrical power cables for some commonly encountered configurations. By estimating the temperature of the cables, the safe long-term current-carrying capacity of the cables can be calculated.

  9. The 9 Best Grocery Items for Weight Loss, According to ... - AOL

    www.aol.com/9-best-grocery-items-weight...

    Leafy greens—like spinach, kale, collards, lettuce and cabbage—deliver fiber and water, meaning they'll help keep you hydrated and fill you up with lots of nutrients in a few calories.