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  2. Electrical equipment in hazardous areas - Wikipedia

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

    Equipment can be designed or modified for safe operation in hazardous locations. The two general approaches are: Intrinsic safety Intrinsic safety, also called non-incendive, limits the energy present in a system, such that it is insufficient to ignite a hazardous atmosphere under any conditions. This includes both low power levels, and low ...

  3. Intrinsic safety - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_safety

    Intrinsic safety (IS) is a protection technique for safe operation of electrical equipment in hazardous areas by limiting the energy, electrical and thermal, available for ignition. In signal and control circuits that can operate with low currents and voltages, the intrinsic safety approach simplifies circuits and reduces installation cost over ...

  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. Foundation Fieldbus H1 - Wikipedia

    en.wikipedia.org/wiki/Foundation_Fieldbus_H1

    A more recent enhancement for intrinsically safe applications is the High Power Trunk (HPT) with field-based field barriers (FBs), which limits power at the spur, rather than the trunk. This method significantly changes the equation for end users of Fieldbus in hazardous settings.

  6. Advanced Physical Layer - Wikipedia

    en.wikipedia.org/wiki/Advanced_Physical_Layer

    In the technical specification 2-WISE [3] the 2-wire intrinsically safe Ethernet is defined. The intrinsic safety barrier is an electronic circuit at each output or input of a switch or instrument. It prevents ignitable electric energy from reaching the connector. The intrinsic safety barrier is separate from the communications circuit (PHY).

  7. 20YO Blind Cat Found Stuck On Ice Chunk In Lake ... - AOL

    www.aol.com/20yo-blind-cat-gets-stuck-110234028.html

    Image credits: Westford Animal Control / Facebook A woman walking by the Nabnasset Lake in Westfold, Massachusetts, noticed a cat stuck on the ice in the middle of the lake and immediately called ...

  8. The best last-minute stocking stuffers under $10 - AOL

    www.aol.com/lifestyle/last-minute-stocking...

    Kopiko is an Indonesian coffee candy that's popular among coffee drinkers who want to enjoy the flavor of coffee without the trouble of preparing a cup.

  9. NeSSI - Wikipedia

    en.wikipedia.org/wiki/NeSSI

    A nonprofit organization, CAN in Automation (CiA) released a 2007 Draft Standard Proposal (DSP-103), that specifies the physical layer of an intrinsically safe bus. [CAN = Controller Area Network] The specification has been developed by members of the CiA organization among them ABB, Pepperl+Fuchs, Texas Instruments, and Siemens.