This information is provided free of charge by the Department of Industrial Relations from its web site at www.dir.ca.gov. These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at http://www.dir.ca.gov/od_pub/disclaimer.html.


Subchapter 7. General Industry Safety Orders
Group 20. Flammable Liquids, Gases and Vapors
Article 144. Service Stations

Return to index
New query

§5574. Electrical Equipment.

(a) This Section shall apply to areas where Class I liquids are stored, handled or dispensed. For areas where Class II or Class III liquids are stored, handled or dispensed, the electrical equipment may be installed in accordance with the provisions of the California Electrical Safety Orders for nonclassified locations.

(b) All electrical equipment and wiring shall be of a type specified by and shall be installed in accordance with the California Electrical Safety Orders. All electrical equipment integral with the dispensing hose or nozzle shall be suitable for use in Division 1 locations.

(c) Table FL-9 shall be used to delineate and classify areas for the purpose of installation of electrical equipment under normal circumstances. A classified area shall not extend beyond an unpierced wall, roof or other solid partition.

(d) The area classifications listed in (c) shall be based on the premise that the installation meets the applicable requirements of these orders in all respects. (Title 24, T8-5574)

HISTORY

1. Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. 29).


                      Table FL-9 
  Electrical Equipment Classified Areas--Service Stations  
------------------------------------------------------------------------
                  Class I, 
                  Group D              Extent of 
Location          Division           Classified Area 
------------------------------------------------------------------------
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 area. 
                     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    Area between 3 feet and 5 feet of open end  
                          of vent, extending in all directions. 

DISPENSING UNITS 
  (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 area. 

  Dispenser          1    The area up to 4 feet vertically above the  
                          base within the enclosure, or up to a solid 
                          partition less than 4 feet above the base, lo- 
                          cated above the nozzle insertion level and  
                          above the level of any gasketed joint, hose or  
                          stuffing box. 
                     2    Within 18 inches horizontally in all direc- 
                          tions from the Division 1 area within the  
                          enclosure. 
  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. 
DISPENSING UNITS, 
OVERHEAD TYPE        1    Within the dispenser enclosure and 18 in 
                          ches in all directions from the enclosure 
                          where not suitably cut off by ceiling or wall. 
                          All electrical equipment integral with the 
                          dispensing hose or nozzle. 
                     2    An area extending 2 feet horizontally in all 
                          directionsbeyond the Division 1 area and 
                          extending to grade below this classified area. 
                     2    Up to 18 inches above grade level within 20 
                          feet horizontally measured from a point ver 
                          tically 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-- 
IN DOOR              1    Entire area within any pit. 
                     2    Within 5 feet of any edge of pump, extending 
                          in all directions. Also up to 3 feet above floor  
                          or grade level within 25 feet horizontally 
                          from any edge of pump. 

LUBRICATION OR SERV- 
ICE ROOM 
  WITH DISPENSING    1    Any pit within any unventilated area. 
                     2    Any pit with ventilation. 
                     2    Area up to 18 inches above floor or grade 
                          level and 3 feet horizontally from a lubrica- 
                          tion pit. 

DISPENSER FOR CLASS 
I LIQUIDS            2    Within 3 feet of any fill or dispensing point, 
                          extending in all directions. 
LUBRICATION OR SERV- 
ICE ROOM--WITHOUT 
DISPENSING           2    Entire area within any pit used for lubrica- 
                          tion 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 feet horizontally 
                          from any edge of the pit. 

SPECIAL ENCLOSURE INS- 
IDE BUILDING PER SEC- 
TION 5567            1    Entire enclosure. 

SALES, STORAGE AND 
REST ROOMS         non    If there is any opening to these class-rooms  
                   clas-  within the extent of a Division 1 area, the en-- 
                   sified tire room shall be classified as Division 1.  

Go BackGo Back to Article 144 Table of Contents