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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 ...
The requirements are currently explicitly detailed in IEC 60079 Part 14 Annex A, [2] detailing knowledge/skills and competency requirements for responsible persons, operatives and designers. The scheme is broken down to twelve units covering different actions and hazardous area concepts. In 2017, CompEx 01-04 was introduced to the NEC Standard.
The electrical safety develops with the technical progress. In 1989 OSHA [1] promulgated a much-needed regulation in the General Industry Regulations. Several standards are defined for control of hazardous energy, or lockout/tagout. In 1995 OSHA was successful in promulgation of regulations for utility. [2]
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 ...
Process Safety Management of Highly Hazardous Chemicals is a regulation promulgated by the U.S. Occupational Safety and Health Administration (OSHA). [1] It defines and regulates a process safety management (PSM) program for plants using, storing, manufacturing, handling or carrying out on-site movement of hazardous materials above defined amount thresholds.
UL 60950-22, Information Technology Equipment – Safety, Part 22: Equipment to be Installed Outdoors; UL 60950-23, Information Technology Equipment – Safety, Part 23: Large Data Storage Equipment; UL 61010-1, Safety Requirements for Electrical Equipment For Measurement, Control, and Laboratory Use; Part 1: General Requirements
Electrical equipment in hazardous areas; Electrical Safety Foundation; ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...
The aim of Directive 2014/34/EU is to allow the free trade of ‘ATEX’ equipment and protective systems within the EU by removing the need for separate testing and documentation for each member state. The regulations apply to all equipment intended for use in explosive atmospheres, whether electrical or mechanical, including protective systems.