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Home My WebLink About1988-08-16; City Council; NS-27; CMC 18.12 adopt by ref - National Electrical Code (1987 edition)0 0 1 2 3 4 ORDINANCE NO. NS-27 AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF CARLSBAD CALIFORNIA, AMENDING TITLE 18, CHAPTER 18.12 AND TO ADOP REFERENCE THE NATIONAL ELECTRICAL CODE (1987 EDITION). 5 11 The City Council of the City of Carlsbad does ordain as 6 /1 follows: 7 SECTION 1: That Title 18, Chapter 18.12 of the Carlsbac 8 to read as follows: 9 Municipal Code is amended by the amendment of Section 18.12.C 18.12.010 AdoDted. The National Electrical Code (1987 Io 11 Edition), copyrighted by the National Fire Protection Associz 12 except for the changes, additions, and amendments set forth j is hereby adopted by reference as the electrical code of the Municipal Code is amended by the amendments of Sections 18.1; 14 SECTION 2: That Title 18, Chapter 18.12 of the Carlsbac 13 this chapter which shall supersede the provisions of said coc 15 16 17 18 19 20 through 18.12.270, except Sections 18.12.241, 18.12.246, 18.12.251 and 18.12.270, to read as follows: I1 MODIFICATIONS 18.12.245 Article 250-81(c) amended Grounding Electrode 18.12.250 Article 331-3(1) amended Electrical Nonmetall: System Tubing 18.12.245 Article 250-81(c) Concrete Encased Electrode 21 11 amended. 22 23 24 25 26 27 28 The primary qroundinq method shall be that which is referred to as the 'Ufer Groundv consisting of 20 feet or mol Copper Conductor #4 (minimum) or larger sized from N.E.C. Tal 250-904, ##Grounding Electrode Conductor for AC Systems". The copper conductor shall be placed three inches up from tht bottom and a three-inch clearance from the sides of the CO~CI footing and supported by a Reinforcing Bar #4 or larger completely encased in concrete. When below ground, the coppt electrical conductor shall be encased in concrete (or in rig: nonmetallic conduit from six inches inside the concrete roof. to the service equipment. unbroken to its termination at the service connection. The copper electrode conductor shall be continuous and //// 0 0 1 2 3 200 amp service), the concrete encased electrode (rebar) may electrode conductor is connected must be a minimum of 20 feet 4 1. The Rebar #4 (1/211) or larger to which the grounding 2. The total developed length of rebar placed three inc 5 I'For sinsle-family residential use only (up to and inclu used subject to the following requirements: long, unbroken. up from the bottom of the foundation must be no less than 20 of rebar, they must be made so that the two bars overlap by r 7 less than 15 inches and are secured by at least two steel tic wires. The splice shall occur at the opposite end from the 8 extended location. 3. The rebar may only extend out of the slab in a dry 9 location. 4. The rebar must extend out of the slab at least six 6 feet. Where splices are necessary to obtain the required 20 inches and not more than 18 inches and the point of connectic lo 11 the grounding electrode connector must be accessible. not be used in concrete, outside or in any other corrosive 12 Aluminum or copper-clad aluminum electrode conductor shz environment. M 13 14 15 16 17 18.12.250 Article 331-3(1) amended - Electrical Nonmetal Tubinq. The use of electrical nonmetallic tubing and fittin? shall be permitted concealed within walls and floors, where I walls and floors provide a thermal barrier of material which at least a 15-minute finish rating as identified in listings fire-rated assemblies and there is a continuous ground cable the main panel throughout the system. SECTION 3: That Title 18, Chapter 18.12 of the Carlsbac 18 19 Municipal Code is amended by adding Sections 18.12.241, 118.12.246, 18.12.251 and 18.12.270 to read as follows: 2o II I11 ADDITIONS 21 22 18.12.251 Article 333-6 amended Uses Not Permitted 23 18.12.246 Article 310-5 Minimum Size of 18.12.241 Articl 230-79 Rating of Disconnect Exception No. 11 added Conductors 18.12.270 Article 384-13 General 24 25 26 27 18.12.241 Article 230-79 Ratins of Disconnect. The Ser Disconnecting Means shall have a rating not less than 100 am: or with approval of the administrative authority a rating no' less than the load to be carried, determined in accordance w Article 220. In no case shall the rating be lower than spec in (a), (b), (c), or (d) below. 28 //// II 2. /I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 I 26 27 28 /I 0 0 18.12.246 Article 310-5 Minimum Size of Conductors. Exception No. 11 added. Branch Circuit Conductors for commex and industrial buildings for receptacle outlets and lighting shall be a minimum #12 AWG copper. 18.12.251 Article 333-6(b) amended - Uses not Permitted. Type A.C. cable shall not be used in Group A, B, E, H and I occupancies as defined in the Uniform Building Code; (Commerc and Industrial buildings). Exception to Commercial Buildings Only: A complete factory designed and assembled A.C. Cable Electrical System for lighl or movable walls and U.L. approved may be used with approval the Building Official. 18.12.270 Article 384-13 General. First sentence shall amended to read: "All panel boards shall have a rating not less than 100 amperes or with approval of the Administrative Authority not than the minimum feeder capacity required for the load compui in accordance with Article 220. EFFECTIVE DATE: This ordinance shall be effective thir days after its adoption, and the City Clerk shall certify to adoption of this ordinance and cause it to be published at 1( once in the Carlsbad Journal within fifteen days after its adoption. INTRODUCED AND FIRST READ at a regular meeting of the Carlsbad City Council held on the 19th day of July , 1988 and thereafter //// //// //// //// //// //// //// ~ //// ~ 1/11 3. I e * 1 2 3 4 5 6 7 8 9 PASSED AND ADOPTED at a regular meeting of said Council on the 16th day of August , 1988, by thc following vote to wit: AYES: Council Members Lewis, Kulchin, Mamaux and Larson NOES: None ABSENT: Council Member Pettine 10 ATTEST : 11 12 13 14 15 16 17 18 ALETHA L. RAUTENKRANZ, City Clerk (SEAL) ///I //// //// //// //// l9 ' //// 20 21 22 23 24 25 26 27 28 //// //// //// //// //// //// //// //// //// 4.