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..1910.178(c)(2)(iv) Power-operated
industrial trucks designated as DY, EE, or EX may be used in locations where
volatile flammable liquids or flammable gases are handled, processed or used,
but in which the hazardous liquids, vapors or gases will normally be confined
within closed containers or closed systems from which they can escape only in
case of accidental rupture or breakdown of such containers or systems, or in
the case of abnormal operation of equipment; also in locations in which
hazardous concentrations of gases or vapors are normally prevented by
positive mechanical ventilation but which might become hazardous through
failure or abnormal operation of the ventilating equipment; or in locations
which are adjacent to Class I, Division 1 locations, and to which hazardous
concentrations of gases or vapors might occasionally be communicated unless such
communication is prevented by adequate positive-pressure ventilation from a
source of clear air, and effective safeguards against ventilation failure are
provided. TABLE N-1. -- SUMMARY TABLE ON USE OF INDUSTRIAL TRUCKS IN VARIOUS LOCATIONS ______________________________________________________________________ Classes Unclassified Class I Class II Class III locations locations locations ______________________________________________________________________ Description Locations Locations Locations Locations of classes. not possessing in which which are where atmospheres as flammable hazardous easily described in gases or because ignitable other columns. vapors of the fibers or are, or presence flyings may be, of are present present combustible but not in the dust. likely to air in be in quantities suspension sufficient in to produce quantities explosive sufficient or ignitable to mixtures. produce ignitable mixtures. ______________________________________________________________________ Groups in None A B C D classes ______________________________________________________________________ Examples Piers and Acetylene Hydrogen Ethyl Gasoline of wharves ether Naphtha locations inside Alcohols or and Acetone atmospheres outside Lacquer in classes general solvent and groups. storage, Benzene general industrial or commercial properties. ______________________________________________________________________ (Continued) ______________________________________________________________________ E F G None ______________________________________________________________________ Metal dust Carbon Grain dust, Baled waste, black coal dust, flour dust, cocoa fiber, coke dust starch dust, cotton, organic dust. excelsior, hemp, istle, jute, kapok, oakum, sisal, Spanish moss, synthetic fibers, tow. ______________________________________________________________________ ______________________________________________________________________ 1 2 ______________________________________________________________________ Divisions None Above Above (nature of condition condition hazardous exists may occur conditions) continuously, accidentally intermittently, as due to a or periodically puncture of under normal a storage operating drum. conditions. ______________________________________________________________________ (Continued) ______________________________________________________________________ 1 2 1 2 ______________________________________________________________________ Explosive Explosive Locations in Locations in mixture may mixture not which easily which easily be present normally ignitable ignitable under normal present, fibers or fibers are operating but where materials stored or conditions, deposits of producing handled or where dust may combustible (except in failure of cause heat flyings the process equipment rise in are of may cause electrical handled, manufacture). the condition equipment, manufactured, to exist or where or used. simultaneously such with arcing or deposits sparking of may be electrical ignited by equipment, or arcs or where dusts sparks from of an electrical electrically equipment. conducting nature may be present. ______________________________________________________________________ ______________________________________________________________________ Authorized uses of trucks by types in groups of classes and divisions ______________________________________________________________________ Groups in None A B C D A B C classes ______________________________________________________________________ Type of truck authorized: Diesel: Type D ........ D** ... .... .... .... .... .... .... .... Type DS ........ ....... .... .... .... .... .... .... .... Type DY ........ ....... .... .... .... .... .... .... .... Electric: Type E ........ E** ... .... .... .... .... .... .... .... Type ES ........ ....... .... .... .... .... .... .... .... Type EE ........ ....... .... .... .... .... .... .... .... Type EX ........ ....... .... .... .... EX . .... .... .... Gasoline: Type G ........ G** ... .... .... .... .... .... .... .... Type GS ........ ....... .... .... .... .... .... .... .... LP-Gas: Type LP ........ LP** .. .... .... .... .... .... .... .... Type LPS ....... ....... .... .... .... .... .... .... .... Paragraph 210.211 201 203 209 Ref. in (a) (a) (a) No. 505. ______________________________________________________________________ (Continued) ______________________________________________________________________ Authorized uses of trucks by types in groups of classes and divisions ______________________________________________________________________ Groups in D E F G E F G None None classes ______________________________________________________________________ Type of truck authorized: Diesel: Type D ..... .... .... .... .... .... .... .... .... Type DS ..... DS . .... .... .... .... .... DS . .... DS Type DY ..... DY . .... .... .... .... .... DY . DY . DY Electric: Type E ..... .... .... .... .... .... .... .... .... E Type ES ..... ES . .... .... .... .... .... ES . .... ES Type EE ..... EE . .... .... .... .... .... EE . EE . EE Type EX ..... EX . .... EX . EX . .... .... EX . EX . EX Gasoline: Type G ..... .... .... .... .... .... .... .... .... Type GS ..... GS . .... .... .... .... .... GS . .... GS LP-Gas: Type LP ..... .... .... .... .... .... .... .... .... Type LPS .... LPS. .... .... .... .... .... LPS. .... LPS Paragraph 204 202 205 209 206 207 208 Ref. in (a), (a) (a) (a) (a), (a) (a) No. 505. (b) (b) ______________________________________________________________________ ** Trucks conforming to these types may also be used -- see subdivision (c)(2)(x) and (c)(2)(xii) of this section. |
