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The part codes for each SPARTAN variant also differ depending on the level of protection required. Equipment approved for use in Class I hazardous locations cannot be used in Class II hazardous locations. Some manufacturers claim "suitability" or "built-to" hazardous areas in their technical literature, but in effect lack the testing agency's certification and thus unacceptable for the AHJ (Authority Having Jurisdiction) to permit operation of the electrical installation/system. Many people have heard terms like Class I, Division 2, Group E, or ATEX zone 21 but many of our customers only know what certification they require with little understanding of what they mean, so we thought it would be appropriate to write a blog post to help customers understand the broader implications of these terms. National Electrical Code (NEC) and the 1998 Canadian Electrical Code (CEC) now recognize the use of the Zone system for classification of hazardous areas. Atmosphere containing flammable gas, flammable liquid produced vapor, or combustible liquid produced vapor mixed with air that may burn or explode, having either a MESG value greater than 0.75 mm or a MIC ratio greater than 0.80 - such as gasoline, acetone, ammonia, benzene, butane, ethanol, hexane, methanol, methane, vinyl chloride, natural gas, naphtha, propane or gases of equivalent hazard. May 2022 Explosion Hazardous Areas are divided into zones according to risk probabilities. Feedback From Clients SPARTANs Zone 1 part code begins SPX, Zone 2 SPZ and industrial products having a SPI prefix. Area which are not devided into Atex zones, are called non-hazardous area's. Class / Division System In Northerm America, instead of the zone classification system, the Class/Division system is used. PDF Product Bulletin Hazardous Area Classifications September 2019 Many items of EEx rated equipment will employ more than one method of protection in different components of the apparatus. Youre phone isnt rated for use in hazardous areas. In the US, the National Electrical Manufacturers Association (NEMA) defines standards for enclosure types for a variety of applications. In recent years also the EPL is specified for several kinds of protection. Equipment should be tested to ensure that it does not exceed 80%[according to whom?] Equipment approved for Class I, Division 1 or Class 1, Division 2 shall, in addition to being marked in accordance with (c)(2)(ii), be marked with the following: Class I, Zone 1 or Class I, Zone 2 (as applicable); Applicable gas classification groups; and. Atmospheres containing propane, acetone, benzene, butane, methane, petrol, hexane, paint solvents or gases and vapors of equivalent hazard. Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse! How to perform Hazardous Area Classification? So the flammable range of a substance is the concentration of gases and vapors in air between the Lower Explosion Limit and the Upper Explosion Limit. Class defines the general nature (or properties) of the hazardous material in the surrounding atmosphere. What is Hazardous Area Classification? | Hazcalc The surface of a high pressure steam pipe may be above the autoignition temperature of some fuel-air mixtures. If equipment has been approved for use in a Division 1 hazardous location, it can be used in a Division 2 hazardous location, providing it is in the same class and group. Informational Note No. Informational Note No. Class I hazardous locations are identified by zones as follows: * Zone 0 a location in which explosive gas atmospheres are present continuously or for long periods of time. Area classification documentations are reviewed and updated to reflect process changes. 0. Under the "Zone" system, hazards are defined for gas as Zone 0, 1 or 2, with 0 as the highest hazard, and for dust as Zone 20, 21 or 22, with 20 as the . hazardous area classification - PowerPoint PPT Presentation - PowerShow FEA The information contained in this article is intended for general information purposes only and is based on information available as of the initial date of publication. Where there is potential for an explosive atmosphere, special precautions are needed to prevent fires and explosions. Hazardous area classification is a rigorous method of determining where an explosive environment may be present. September 2019 NEW METHODS FOR HAZARDOUS AREA CLASSIFICATION FOR EXPLOSIVE GAS . Coal mines, grain mills, elevators, and similar facilities likewise present the risk of a clouds of dust. Hazardous areas are classified into zones based on an assessment of the frequency of the occurrence and duration of an explosive gas atmosphere, as shown in the illustration below. Ignitable concentrations of flammable gases or vapors which are likely to occur under normal operating conditions. Zones also have the added benefit of including the area classification with the zone description. NEC Div 1 Zone 1 Div 2 Zone 2Flammable during normal operation Most Safer Zone IEC Zone 0 DESRIPTIONHighly Flammable for long period DEFINITIONFlammable atmosphere present continuously (Typically 1000 hours / year). >> For Gas/Vapor this would be Zone 2. Zone 0Ignitable concentrations of flammable gases or vapors which are present continuously or for long periods of time. 2: This classification includes, Informational Note No. July 2022 Flour, wood/sawdust, plastic dust). In the United Kingdom, Sira and Baseefa are the most well known such bodies. As world trade becomes more globalized, international standards are slowly converging, so that a wider range of acceptable techniques can be approved by national regulatory agencies. Intrinsic safety -- This protection technique is permitted for equipment in the Class I, Zone 0 or Zone 1 locations for which it is approved. Hazardous Area Classification Class I: Zone 0, Zone 1, Zone 2 - LinkedIn Category 1 equipment may be used in zone 0, zone 1 or zone 2 areas. Equipment that is listed for a Zone 1 location may be installed in a Zone 2 location of the same gas or vapor. Comparison of Division and Zone Systems - IAEI Magazine Locations are thus classified by type and risk of release of gas, vapor, or dust. A hazardous area can be defined as any location where there is risk of an explosion. These ways of protection are specified in detail within several IEC standards (IEC 60079 series) for electrical equipment. Equipment in this category is intended for use in Zone 0 areas (gases) or Zone 20 (dusts), and must ensure a very high level of protection (i.e. 2: Through the exercise of ingenuity in the layout of electrical installations for hazardous (classified), Refrigerant machinery rooms that contain ammonia refrigeration systems and are equipped with adequate mechanical ventilation that operates continuously or is initiated by a detection system at a concentration not exceeding 150 ppm shall be permitted to be classified as "unclassified". Identifying Zone 0, Zone 1, and Zone 2 Hazardous Areas. Offshore Workshop Container Zone 1: An area in which an explosive atmosphere is likely to occur in normal operation. PDF Australian Hazardous Area Selection Chart - Frsa The definition of the hazardous area zones represent the likelihood of hazardous gas, dust or other hazards being present in a working area. Within the European Union, these are defined by IEC/EN standards (IEC/EN 60079-10-1 or 2) as directed by ATEX. Such areas include a residence or office where the only risk of a release of explosive or flammable gas would be such things as the propellant in an aerosol spray. Hazardous Area Classification Questions - Inst Tools The equipment housing may be sealed to prevent entry of flammable gas or dust into the interior. Area Classification In Oil And Gas - Safety Notes March 2021 For non-ambient conditions, like process reactors or other enclosed systems, the Limiting Oxygen Concentration is often used for the prevention of explosive atmospheres within those enclosed areas. Hazardous Areas - European Classification Standard - Engineering ToolBox Class 1 / Division 2 and ATEX Zone 2 Explained - Assured Systems Area's are divided into zones. Electrical Equipment in Hazardous Locations - Canadian Consulting Engineer The Zone system is based on Article 505/506 of the National Electrical Code (NEC) and follows the international method of area classification as developed by the International Electrotechnical Commission (IEC). In some cases, the hazardous atmosphere is present all the time, or for long periods. Which system is preferred depends on the users preference, how the areas are classified, and the wiring system used. An area where combustible dusts or ignitable fibers and flyings are present continuously or for long periods of time. hazardous areas as the following: An area where a potential hazard (e.g., a fire, an explosion, etc.) (Hazardous Area Classification) . December 2020 Standards for electrical installations have been established and are governed by a variety of organizations throughout the world to ensure safe electrical systems in hazardous locations. Zone 0 (hazardous area) An area in which an explosive gas-air mixture is continuously present or present for long periods.