GASOLINE DISPENSING, SERVICE STATIONS

70-511 Table 514-2.* Class I Locations - Service Stations Class I, Group D Location Division Extent of Classified Location Underground Tank Fill Opening 1 Any pit, box, or space below grade level, any part of which is within the Division 1 or 2 classified location. 2 Up to 18 inches above grade level within a horizontal radius of 10 feet from a loose fill connection and within a horizontal radius of 5 feet from a tight fill connection. Vent - Discharging 1 Within 3 feet of open end of vent, Upward extending in all directions. 2 Space between 3 feet and 5 feet of open end of vent, extending in all directions. Dispensing Device (except overhead type)* Pits 1 Any pit, box, or space below grade level, any part of which is within the Division 1 or 2 classified location. Dispenser (FPN): Space classification inside the dispenser enclosure is covered in Power Operated Dispensing Devices for Petroleum Products, ANSI/UL 87-1987. 2 Within 18 inches horizontally in all directions extending to grade from (1) the dispenser enclosure or (2) that portion of the dispenser enclosure containing liquid handling components. (FPN): Space classification inside the dispenser enclosure is covered in Power Operated Dispensing Devices for Petroleum Products, ANSI/UL 87-1987. Outdoor 2 Up to 18 inches above grade level within 20 feet horizontally of any edge of enclosure. Indoor with Mechanical 2 Up to 18 inches above grade or Ventilation floor level within 20 feet horizontally of any edge of enclosure. with Gravity Ventilation 2 Up to 18 inches above grade or floor level within 25 feet horizontally of any edge of enclosure. 70-512 NATIONAL ELECTRICAL CODE Table 514-2. Class I Locations - Service Stations (cont.) Class I, Group D Location Division Extent of Classified Location Dispensing Device Overhead Type* 1 The space within the dispenser enclosure, and all electrical equipment integral with the dispensing hose or nozzle. 2 A space extending 18 inches horizontally in all directions beyond the enclosure and extending to grade. 2 Up to 18 inches above grade level within 20 feet horizontally measured from a point vertically below the edge of any dispenser enclosure. Remote Pump - Outdoor 1 Any pit, box, or space below grade level if any part is within a horizontal distance of 10 feet from any edge of pump. 2 Within 3 feet of any edge of pump, extending in all directions. Also up to 18 inches above grade level within 10 feet horizontally from any edge of pump. Remote Pump - Indoor 1 Entire space within any pit. 2 Within 5 feet of any edge of pump, extending in all directions. Also up to 3 feet above grade level within 25 feet horizontally from any edge of pump. Lubrication or Service Room - 1 Any pit within any unventilated with Dispensing space. 2 Any pit with ventilation. 2 Space up to 18 inches above floor or grade level and 3 feet horizontally from a lubrication pit. Dispenser for Class I Liquids 2 Within 3 feet of any fill or dispensing point, extending in all directions. Lubrication or Service Room - 2 Entire area within any pit used for without Dispensing lubrication or similar services where Class I liquids may be released. 2 Area up to 18 inches above any such pit, and extending a distance of 3 ft horizontally from any edge of the pit. 2 Entire unventilated area within any pit, below-grade area, or subfloor area.