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  2. Intrinsic safety - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_safety

    In signal and control circuits that can operate with low currents and voltages, the intrinsic safety approach simplifies circuits and reduces installation cost over other protection methods. Areas with dangerous concentrations of flammable gases or dust are found in applications such as petrochemical refineries and mines.

  3. Electrical equipment in hazardous areas - Wikipedia

    en.wikipedia.org/wiki/Electrical_equipment_in...

    Unlike ATEX which uses numbers to define the safety "Category" of equipment (namely 1, 2, and 3), the IEC continued to utilise the method used for defining the safe levels of intrinsic safety namely "a" for zone 0, "b" for zone 1 and "c" for zone 2 and apply this Equipment Level of Protection to all equipment for use in hazardous areas since ...

  4. Inherent safety - Wikipedia

    en.wikipedia.org/wiki/Inherent_safety

    (Kletz originally used the term intrinsically safe in 1978, but as this had already been used for the special case of electronic equipment in potentially flammable atmospheres, only the term inherent was adopted. Intrinsic safety may be considered a special subset of inherent safety). In 2010 the American Institute of Chemical Engineers ...

  5. Current limiting - Wikipedia

    en.wikipedia.org/wiki/Current_limiting

    Current limiting is the practice of imposing a limit on the current that may be delivered to a load to protect the circuit generating or transmitting the current from harmful effects due to a short-circuit or overload. The term "current limiting" is also used to define a type of overcurrent protective device.

  6. Circuit integrity - Wikipedia

    en.wikipedia.org/wiki/Circuit_integrity

    Circuit integrity describes the extent of a fire's effect on an electrical circuit's operation. It is a form of fire-resistance rating . Circuit integrity is achieved via passive fire protection means, which are subject to listing and approval use and compliance .

  7. Circuit design - Wikipedia

    en.wikipedia.org/wiki/Circuit_design

    Circuit designers, who are compensated for their expertise in creating electrical circuits, bear the responsibility of ensuring the safety of consumers who purchase and use these circuits at home. The risks associated with neglecting the prototyping process and releasing a flawed electrical circuit are significant.

  8. List of free electronics circuit simulators - Wikipedia

    en.wikipedia.org/wiki/List_of_free_electronics...

    List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE.The following table is split into two groups based on whether it has a graphical visual interface or not.

  9. Breaking capacity - Wikipedia

    en.wikipedia.org/wiki/Breaking_capacity

    Calculation of the required breaking capacity involves determining the supply impedance and voltage. Supply impedance is calculated from the impedance of the elements making up the supply system. Customers of an electrical supply utility can request the maximum value of prospective short-circuit current available at their point of supply.