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Ord 1844 9/28/1959ORDINANCE NO. / fZ_1"1 AN ORDINANCE AMENDING PARTS OF ORDINANCE N0,, 1687, WHICH WAS AN ORDINANCE ESTABLISHING THE ELECTRICAL CODE OF THE CITY OF WICHITA FALLS, kND PROVIDING FOR H MINIMUM OF ONE —HKLF (1/2) INCH INTERNAL DIAMETER ON UNDERGROUND CONDUIT; AND PROVIDING FOR USE OF CERT,►IN UNDERGROUND CABLE IN RESIDENTIt.L AREAS FOR RESIDENTIkL HOME USE AND INST!,.LLJION OF OUTSIDE AREA LIGHTS; AND PROVIDING FOR THE USE OF AN ALUMINUM RIGID CONDUIT IN ALL PLACES THAT GALVANIZED RIGID IRON CONDUIT MAY BE USED WITH THE EXCEPTION OF EMBEDDING IN CONCRETE, OR DIRECT BURIAL OR THE USE IN MASTPOLES. BE IT ORDAINED BY THE BOiRD OF '.LDERMEN OF THE CITY OF WICHITA FALL, TEL`,S: SECTION 1, That Sub — section (11) of Section 9 of Ordinance 1687 is hereby amended so as to read as follows: "All conduits in ice boxes, refrigerator plants, and in under- ground work shall be rigid galvanized conduit or approved duct. The wiring used in such conduits may be lead covered or of a type approved by the National Board of Fire Underwriters for this type of installation. "For light and power, all underground service conduit shall be a minimum size of one and one —half (12) inches internal diameter. No underground conduit shall be smaller than one —half (2) inch internal diameter. SECTION 2, That Section 9 of Ordinance 1687 is hereby amended so as to include the following which will be numbered sub — section (17) and shall read as follows: (17) Installation of underground branch circuit cable (Type UF) shall comply with the provisions of Sections 3001 and 3020, inclusive, paragraph "b" of Section 3102, and in addition shall conform with provisions of Section 3392 of the National Electric Code, as specifically approved. Underground branch circuit cable may be used, including direct burial in the earth, as branch circuit cable when provided with overcurrent protection not in excess of the rated current carrying capacity of the individual conductors. Single conductor cable shall not be installed under any circumstance, The conductor, Type OF cable with one con- ductor grounded securely to all metal portions of the circuit, may be buried directly in the earth, at a minimum depth of eighteen (18 "), and shall have a supplementary mechanical protection of a covering board overlapped twelve inches (12 "), where abutting, and of a minimum one inch (111) thick and six inches (611) wide. This type of cable is approved solely for use in residential areas, and for residential home use, and is to be ex- clusively restricted to the outside installation of area lighting and general purpose receptacles. This approval is not to be construed to allow the connection of motors or similar type permanent electrical installations, This type cable shall nut be used (1) as service entrance cable, (2) in commercial garages, (3) in theatres, (4) in motion picture studios, (5) in storage battery rooms, (6) in hoistways, (7) in hazardous locations, (8) embedded in poured cement, concrete, or aggregate, nor (9) in air void in masonry block or tile walls, nor (10) in shallow chases in masonry, concrete, or plaster walls, nor (11) in similar types of concealment. Direct burial cable, when not installed in raceways, shall be installed in pre - inspected trenches at a minimum depth of eighteen inches (1811) below the finished grade. If the trench bottom is not of a smooth, even soil, it shall be covered with a two inch (211) soil fill to protect the cable against sharp objects. The soil fill adjacent to the covering board shall be free of all foreign or sharp objects. The cable shall be protected; at the point of entry and exit of the trench, by rigid metal conduit ex- tending to a minimum del, h of twelve inches (1211) below the surface of the finished grade. SECTION 3, That Section 9 of Ordinance 1687 is hereby amended so as to include the following which will be numbered sub - section (18) and shall read as follows: ( SEAL) A (18) The use of aluminum rigid conduit is approved for installation in all locations that galvanized rigid iron conduit may be used with the express exclusion of embedding in concrete, direct burial in soil, or the usp as mastpoles. PASSED AND APPROVED this day of , 1959. . T. Henderson, City Clerk Frank Gibson, City Attorney Bill yor Protem -2-