| Administrative law - 1984 - 998 pages
...tray systems include ladders, troughs. Chapter XVII — Occupational Safety and Health Administration channels, solid bottom trays, and other similar structures....vapors may exist under normal operating conditions; or (b) in which hazardous concentrations of such gases or vapors may exist frequently because of repair... | |
| Administrative law - 1987 - 1072 pages
...breaker. (1) (600 volts nominal, or less). A device designed to open and close a circuit by nonautomatlc means and to open the circuit automatically on a predetermined...vapors may exist under normal operating conditions; or (b) in which hazardous concentrations of such gases or vapors may exist frequently because of repair... | |
| Administrative law - 1982 - 1002 pages
...without injury to Itself when properly applied within Its rating. (ii) (Over 600 volts, nomIn¿1). A switching device capable of making, carrying, and...vapors may exist under normal operating conditions; or Cb) in which hazardous concentrations of such gases or vapors may exist frequently because of repair... | |
| Administrative law - 2002 - 676 pages
...and breaking currents under specified abnormal circuit conditions, such as those of short circuit. Class I locations. Class I locations are those in...mixtures. Class I locations include the following: (a) Class I, Division 1. A Class I, Division 1 location is a location: 29 CFR Ch. XVII (7-1-02 Edition)... | |
| Administrative law - 1994 - 968 pages
...breaking currents under specified abnormal circuit conditions, such as those of short circuit. ClasH I locations. Class I locations are those in which...mixtures. Class I locations include the following: (a) Class I, Division 1. A Class I, Division 1 location is a location: (1) In which ignitible concentrations... | |
| Administrative law - 1969 - 538 pages
...Atmospheres containing carbon black, coal or coke dust; and Group G, Atmospheres containing grain dust. (8) Class I locations are those in which flammable gases...explosive or ignitible mixtures. Class I locations shall include the following. (i) Class I, Division 1, Locations: (a) in which hazardous concentrations... | |
| Administrative law - 1996 - 660 pages
...and breaking currents under specified abnormal circuit conditions, such as those of short circuit. Class I locations. Class I locations are those in...air in quantities sufficient to produce explosive or ignitlble mixtures. Class I locations include the following: (a) Class I, Division 1. A Class I. Division... | |
| Administrative law - 1995 - 1016 pages
...short circuit. Class I locations. Class I locations are those in which flammable gases or vapors axe or may be present in the air in quantities sufficient...mixtures. Class I locations include the following: (a) Class I, Division 1. A Class I, Division 1 location is a location: (1) In which ignitible concentrations... | |
| Administrative law - 1981 - 838 pages
...locations. (a) General: For the purpose of this section, hazardous locations are defined as follows: (1) Class I Locations— Class I Locations are those in...flammable gases or vapors are or may be present in quantities sufficient to produce explosive or ignitable mixtures. (2) Class II Locations— Class II... | |
| United States. Coast Guard - Electric engineering - 1967 - 156 pages
...carbon black, coal or coke dust; and Group G, Atmospheres containing grain dust. 11 1.60-40 (a) (7) Class I locations are those in which flammable gases...sufficient to produce explosive or ignitible mixtures. 1 11. 60-40 (a) (7) (i) This classification would usually include locations such as cargo pumprooms,... | |
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