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"**Each floor machine is built to order, so please allow 3-4 weeks for build time and delivery.**\r\nThis 15 inch explosion proof floor machine is classified for use in Class 1 Hazardous Locations, as described by the National Electrical Code (NEC). The Unico explosion proof floor machines are tested with respect to the acceptability of operation in the presence of flammable and explosive mixture of specific vapors and gases with air. Equipment classified for use in Class 1 locations is not necessarily acceptable for Class 2 locations as it may not be Dust-Tight or operate at a safe temperature when blanketed with dust. This machine is available in 60 hertz, at 110 or 220 volts. \r\nProtection against explosions in hazardous locations requires that all electrical equipment exposed to the flammable or combustible atmospheres be of a type suitable for installation in such locations. Equipment should be installed in circuits with overload and short-circuit protection for established ratings. \r\nFor explosion proof equipment as defined in the NEC, acceptability of use in hazardous locations will be endangered should openings or other alterations be made in the enclosure. Holding bolts of enclosing cases and threaded parts must be screwed tight. Continued acceptability of installation will depend upon proper maintenance.\r\nCertified for use with Class 1, Group D hazardous materials - Atmospheres such as: acetone, acrylonitrile, ammonia, benzene, butane, 1-butanol, 2-butanol, n-butyl acetate, ethane, ethanol, ethyl acetate, ethylene dichloride, gasoline, heptane, hexane, isoamyl alcohol, isoprene, methane, methanol, methyl ethyl ketone, methyl isobutyl ketone, 2-methyl-1-propanol, naptha, octane, pentane, 1-pentanol, propane, 1-propanol, 2-propanol, propylene, styrene, toluene, vinyl acetate, vinyl chloride, and xylenes.\r\nWarnings (Important to read before use!)\r\n\r\nUse ONLY static conductive and spark proof accessories that are certified for use in hazardous locations. These machines and accessories are designed to comply with the NEC.\r\nAll electrical equipment must be installed and used in strict accordance with the NEC.\r\nRegular maintenance inspections are a must! The electrical cord must be inspected every time the machine is used. Any cuts or cracks in the insulation on the cord must be replaced before using."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.cleanfreak.com/equipment/floor/buffers/explosion-proof-floor-scrubbing-machine.html>