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  2. 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 ...

  3. List of Superfund sites in Illinois - Wikipedia

    en.wikipedia.org/wiki/List_of_Superfund_sites_in...

    The area has been covered in >24 inches of soil, but areas outside the Johns-Manville property have problems with asbestos contamination, including other beachfront areas near the Waukegan and Zion. [5] The site will be redeveloped as a soccer and baseball complex. [6] 12/30/1982: 09/08/1983: 12/31/1991: N/A: N/A ILD980500102: Yeoman Creek ...

  4. 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 ...

  5. Semis, trains and hazardous materials: 5 worst hazmat ... - AOL

    www.aol.com/lifestyle/semis-trains-hazardous...

    Here are the 5 worst hazmat incidents in Illinois. Semis and trains have transported hazardous materials for years, but sometimes things go wrong. Here are the 5 worst hazmat incidents in Illinois.

  6. ATEX directives - Wikipedia

    en.wikipedia.org/wiki/ATEX_directives

    1. Industrial or Mining Application 2. Equipment Category 3. Atmosphere 4. Temperature The ATEX as an EU directive finds its US equivalent under the HAZLOC standard. This standard given by the Occupational Safety and Health Administration defines and classifies hazardous locations such as explosive atmospheres.

  7. Illinois Environmental Protection Agency - Wikipedia

    en.wikipedia.org/wiki/Illinois_Environmental...

    The Illinois EPA was established in July 1970, shortly after the first Earth Day. Governor Richard Ogilvie signed into law the Illinois Environmental Protection Act (PA 76-2429), which became effective on July 1, 1970, and created the Illinois EPA. Illinois was the first US state with a comprehensive environmental protection act.

  8. Maximum experimental safe gap - Wikipedia

    en.wikipedia.org/wiki/Maximum_Experimental_Safe_Gap

    Maximum experimental safe gap (MESG) is a standardized measurement of how easily a gas flame will pass through a narrow gap bordered by heat-absorbing metal. MESG is used to classify flammable gases for the design and/or selection of electrical equipment in hazardous areas, and flame arrestor devices. [1]

  9. Machine guarding - Wikipedia

    en.wikipedia.org/wiki/Machine_guarding

    Machine guarding is a safety feature on or around manufacturing or other engineering equipment consisting of a shield or device covering hazardous areas of a machine to prevent contact with body parts or to control hazards like chips or sparks from exiting the machine.