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HomeMy WebLinkAbout12367r---- _ 1 i ORDINANCE NO. 12J67 36'7' AN ORDINANCE AMENDING VARIOUS PROVISIONS OF CHAPTER 12 OF THE CODE OF ORDINANCES OF THE CITY OF LITTLE ROCK, ARKANSAS, SAID CHAPTER DEALING WITH THE ELECTRICAL 00 CODE OF THE CITY OF LITTLE ROCK, ARKANSAS. NOW, THEREFORE, BE IT ORDAINED BY THE BOARD OF DIRECTORS OF d' THE CITY OF LITTLE ROCK, ARKANSAS. SECTION 1. The following sections and subsections of Chapter 12 M are amended as follows: A. Section 12 -2 (c) is hereby amended to read as follows: r) (c) All light wiring in commercial buildings in ,4 sales and display rooms shall be done with �o wire not smaller than #12 wire, allowing four co outlets to the circuit. Flourescent lighting ro loads on both 120 volt and 277 volt circuits shall be limited to a maximum of 55% of the circuit rating rather than be the number of 'c outlets. The 55% loading will be 1320 watts 04 on 120 volt circuits, and 3000 watts on 277 >V volt circuits. .Q rd Incadescent lighting circuits will be limited .Q) to 1320 watts without regard to the number of- outlets. 0 Window lights not over six outlets per circuit on No. 12 wire, provided this number of outlets does not overload the circuit. B. Section 12 -2 (f) is hereby amended to read as follows: (f) All outlets for ceiling or bracket lights wherever installed shall be fitted with fixture studs and ears drilled and tapped and in residence wiring all switch and outlet boxes shall be of the type known to the trade as galvanized or sheradized and shall be at least one and one -half inches deep. (nonmetallic boxes will be permitted, as provided in article Sec. 370 of the National Electrical Code.) Junction boxes will not be permitted in attics except where necessary to be used for recessed fixtures, attic fans, and /or central heating units. When necessary outlet boxes shall be fitted with plaster rings, number of conductors in boxes shall be governed by Article 370, as set forth in the National Electrical Code. C. Section 12 -2 (j) is hereby amended to read as follows: (j) All exposed wires under houses and in basement shall be installed -in rigid steel conduit, steel tube, or Greenfield unless the joists are bored. This does not apply to ground wires. j 1 12�_ When nonmetallic sheathed cable in size 8/3 or larger is installed under houses or -in unfinished basements it will not be necessary to bore the joists, but shall be securely strapped. D. Section 12 -2 (k) is hereby amended to read as follows: (k) Under all conditions where conduit is required, conduit and fittings used shall be of the type known to the trade as galvanized or sheradized or (approved nonmetallic conduit.) E. Section 12 -2 (1) is hereby amended to read as follows: (1) Ground wires shall not be smaller than No. 8 gauge. Ground wires in residence outside of the fire district shall be installed in conduit or steel tube from the main line switch down the surface of the wall and through the foundation; from this point the ground wire must be securely supported on approved insulators until it is connected to the nearest point of ground. (All service grounding conductors shall be insulated.) Ground wires in buildings where the wiring is required to be installed in metal, the ground wires shall be installed in rigid conduit or steel tube from the main line switch to the point of ground. The common main service grounding conductor shall not be run in the same raceway with other conductors. Bonding of service equipment shall be made in accordance with Article 250:71 -72 of the National Electrical Code. Neutral buss bars shall be bonded with a screw or strap to the cabinet. F. Section 12 -2 (m) is hereby amended to read as follows: (m) In the absence of approved water or other piping grounds, the ground must be made with three - quarter inch galvanized pipe or approved grounding devices. A metallic underground water piping system, either local or supplying a community, shall-always be used as the grounding electrode where such a piping system is available. Where the buried portion of the metallic piping system is less than ten feet (including well casings bonded to the piping system) or there is some likelihood of the piping system being disconnected or isolated through the use of nonmetallic piping or insulated couplings, the piping system shall be supplemented by one or more of the grounding electrodes recognized in Sections 250 -82 and 250 -83. The interior metallic cold water piping system shall always be bonded to the one or more grounding electrodes. G. Section 12 -2 (n) is hereby amended to read as follows: (n) All wiring installed in or under concrete or other type of floor on earth, shall be done with galvanized conduit not smaller than three - quarter inch and wire approved for this purpose used. -3- Aluminum conduit shall not be installed in concrete. Should it be used in contact with earth, it shall be coated with bituminous or asphalt paint or some other approved coating. EMT shall not be used in contact with the earth. Conduit installations for underground or slabs shall be inspected before covered, or concrete is poured. H. Section 12 -2 (q) is hereby amended to read as follows: (q) All bell transformers must be fused with three ampere fuses and located in accessible places. (They shall not be located in attics or other areas subject to above normal heat.) I. Section 12 -2 (t) is hereby amended to read as follows: (t) All distribution panels and cabinets shall be of the dead front type. There shall be connectors or bushings approved for the purpose used when conductors or cables enter cabinets or boxes. J. Section 12 -2 (u) is hereby amended to read as follows: (u) All multiple meter installations or services switch banks of four or more shall be protected by main service fused switch or breaker. Main switch or breaker shall be of the approved type. No service or grouped services shall have more than three (3) breakers or means of disconnect without a main. K. Section 12 -2 (v) is hereby amended to read as follows: (v) Table governing size of service entrance switch and service wires according to number of circuits used: No. Circuits 2 or 3 Wire Size Service Switch 1 through 8 3 60 Ampere 9- 10 -11 -12 3 100 Ampere 13 and over according to load Size Service Wires 3 No. 6 3 No. 2 The neutral load shall be considered the same as the ungrounded conductor. The service and feeder Neutral shall be the same size as the ungrounded conductor up to 200 amps plus 70% of the load over 200 amps. Article 220 -4 (d). No circuit shall be installed to operate at more than 80% of the conductor capacity. Conductors supplying electric ranges in residences shall have a minimum ampacity of 60 amps. The circuit supplying an electric range or dryer shall have an insulated neutral or ground. Radiant ceiling and wall heaters shall be on a separate circuit; size wire governed by amperage load. Central heating systems and attic fans shall be con- nected on separate circuits from other outlets; however, they can both be connected on the same circuit r. -4- as each must have a separate manually operated switch and would not be operated at the same time. L. Section 12 -2 (w) is hereby amended to read as follows: (w) Before adding an additional meter to an existing service on a residence, the proper zoning must be verified before installation. When installing a mast riser, the conduit shall be continuous to the meter socket. An adapter or reducer may be used at the meter hub. Service mast shall not be smaller than 2" rigid conduit. M. Section 12 -2 (z) is hereby amended to read as follows: (z) On all remodeling jobs where the load is to be divided and put on two or more meters, the meters must be relocated according to the above rules, and shall be fed from a common service. This rule applies only to dwelling and apartment houses. In existing structures, where new wiring is being installed, the existing hazardous wiring must be corrected, open knife switches, open fuse blocks, etc., removed before the new wiring will be approved. SECTION 2. Section 12 -2 is hereby amended to reflect the addition of subsections bb, cc, dd, ee and ff, said subsections to read as follows: (bb) A bonding jumper shall be used for all grounded type receptacles from the metalic b6x to the receptacle in accordance with Art. 250 -114 (a) and table 250 -95. Where the box is surface - mounted, direct metal -to- metal contact between the device yoke and the box may be used to establish the grounding circuit. The receptacle support screw shall not be depended upon for grounding purposes. (cc) Holes bored in studs and joist or similar wood members shall be bored at the approximate center of the wood member or at Least 2" from the nearest edge. This is governed by Section 300 -8 of the National Electrical Code. Where ceiling joist are less than six inches (6) in height, the conductors shall be run at right angles or parallel to the joist. (dd) Unless specifically approved connectors and flexible conduit are used, a grounding conductor shall be run within the Greenfield. (ee) Gutters, troughs, etc., installed in areas exposed to the weather shall be weatherproof. (ff) Cables with grounding conductors smaller than those in Tables 250 -95, will not be permitted. SECTION 3. Section 12 -3, subsection (f) is hereby amended in the manner and respects necessary to reflect the addition of three classifi- cations under MISCELLANEOUS. These additions and respective changes are as follows: -5- Vent hoods .75 Dish washers 1.50 Disposals 1.50 SECTION 4. Section 12 -3, subsection (i) is hereby amended to read as follows: (i) Final inspection. Before any electrical current shall be used upon any electrical wiring, of any character, written notice shall be served upon the city electrician by the electrical contractor or his master electrician, who shall as soon as possible make a final inspection of the wiring, and if the installation has been constructed in accordance with the rules and requirements of this article, he shall issue a certificate of inspection, which shall contain a general description of the installa- tion, and the date of the inspection. No current shall be used prior to the issuance of such certificate, pro- vided that the city electrician may issue a temporary permit for the use of electrical current during the course of construction or alteration of building. When final inspections are requested, it will be necessary for the electrical contractor to arrange for the houses and /or buildings to be open in order that the inspections can be made. SECTION 5. Section 12 -6 is hereby amended to read as follows: Section 12 -6. Board of electrical examiners and supervisors- - duties in general There is hereby established a board of five members to be known as the board of electrical examiners and supervisors. Such board shall be composed of the personnel having the following qualifications: (a) Master Electrician as licensed by this Chapter that is not a principal in an electrical firm. (b) One Journeyman as licensed by this Chapter. (c) One Electrical Engineer as licensed by State law that is a consulting engineer. (d) One shall be a representative of the Arkansas Inspection and Rating Bureau. (e) One member shall be an electrical contractor duly licensed to do business in the City of Little Rock. The board shall have the power and it shall be the duty of said board to examine into the qualifications of all persons, firms, or corporations who are engaged in the business of contracting electric wiring work or installing electric wiring, lighting fixtures, or apparatus operating at a potential of thirty volts or more. SECTION 6. Section 12 -7 shall be amended to read as follows: Section 12 -7. Same -- Appointment; terms; vacancies; officers. The members of the board shall be appointed by the City Manager subject to the approval of the Board of Directors. The terms of the members shall be for three years and until their successors are elected and qualified. Vacancies for any unexpired term shall be filled in the same manner as herein provided for by the original appoint- ment of members. The original board authorized by this W. :M. ordinance shall serve staggered terms to be determined by lot at the first meeting in accordance with the following schedule: (a) one member for a one year term, (b) two members for two year terms, and (c) two members for three year terms. The board shall select one of its members as Chairman and one as Secretary and promulgate such rules and regulations for the conduct of its meetings as may be appropriate. SECTION 7. Section 12 -11, subsections h, i, and 1 are hereby amended to read as follows: (h) Electrical contractor. Electrical contractor shall be defined to include any person, member and /or employee of a firm, partnership, or corporation engaged in the business of installing, erecting or repairing or con- tracting to install, erect or repair electric wires or conductors to be used for the transmission of electric light, heat or power purposes or to install or repair, mouldings, ducts, raceways or conduit for the reception or protection of such wires or conduits, or any electrical machinery, apparatus, or systems to be used for electrical light, heat, power or signalling purposes operating at a potential of 30 volts or more. Any person, or a member and /or employee of a firm, partnership or corporation desiring to engage in the business of electrical contractor may apply for and be issued a license upon satisfying said board that he or it is either a master electrician or employees a master electrician as its superintendent or manager and shall execute the bond hereinafter provided. Electric contractor, employing up to 2 employees $50.00 employing from 3 to 5 employees 75.00 over 5 employees, ea. additional employee 10.00 Before any person, firm, partnership, or corporation shall engage in the business of electrical contracting as herein defined the name, residence and place of business of such person, firm, partnership or corporation shall be registered in a book to be kept for that purpose by the secretary of the board of electrical examiners and supervisors, a copy of which shall at all times -be kept on file in the office of the city electrician. In said book shall also be recorded the name of the master electrician managing or supervising the business of such person, firm, partnership, or corpora- tion as superintendent or manager and the date on which such person qualified as a master electrician under the terms and provision of this article. Every removal of place of busi- ness, or change in name of the organization, or change in the licensed master electrician in charge of the business, shall require immediate notice thereof to the secretary of said board, who shall make the proper changes in the record book heretofore mentioned. Every electrical contractor shall promptly report to the secretary of said board the death, resignation or discharge of his or its master elec- trician; and if another master electrician is not secured within three days after the next succeeding examination held therefor by the board, the license of such contractor shall be suspended until a new licensed master electrician is employed. No licensed master electrician can represent more than one firm at a time. The actual work shall be done by a qualified master or journeyman electrician. �• a -7- (i) Electrical sign contractor. Electrical sign contractor shall be defined to include any person, firm, or cor- poration engaged in the business of manufacture, installa- tion, erection and repair of electrically illuminated or operated signs. They shall be entitled to install the tubing for illumination or interior gaseous tube lighting and to make final connection between the trans- former secondary wiring and the tube electrode. The primary connection to transformers and signs can be made provided there are sign circuits or outlets of sufficient capacity available within fifteen feet of the sign or transformer to be connected. The actual work shall be done by a qualified master, journeyman, or special sign electrician. Electrical sign contractor shall pay a license fee same as electric contractor. (1) Electrical elevator contractor. Electrical elevator contractor was eliminated by Arkansas Act 189, 1963, Section 14. SECTION 8. This Ordinance shall be in full force and effect from and after its passage. PASSED: July 6, 1970 ATTEST: City Cler