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Ordinance 1868CITY OF ALAMEDA ORDINANCE ,NO. 1868, New Series ADOPTING BY REFERENCE THE NATIONAL ELECTRICAL CODE, 1975 EDITION, COPYRIGHT 1974 BY NATIONAL FIRE PROTECTION ASSOCIATION, WITH AMENDMENTS, ADDITIONS AND DELETIONS THEREOF AS THE PRIMARY CODE; PRESCRIBING REGULATIONS FOR SAFEGUARDING OF PERSONS AND PROPERTY FROM HAZARDS ARISING FROM USE OF ELECTRICITY; PROVIDING FOR THE ISSUANCE OF PERMITS AND COLLECTION OF FEES THEREFOR; PROVIDING PENALTIES FOR VIOLATION THEREOF, AND REPEALING ANY ORDINANCES IN CONFLICT THEREWITH BE IT ORDAINED BY THE COUNCIL OF THE CITY OF ALAMEDA that: Section 1 TITLE National Electrical Code. This ordinance shall be known as the "Alameda Electrical Code ", may be cited as such, and will be referred to herein as "this ordinance" or "this code" or "Electrical Code ". The National Electrical Code, as the Primary Code, Copyright 1974 by National Fire Protection Association, copies of which have been placed on file with the City Clerk for use and examin- ation by the public and by Resolution No.8698 declared to be public records, as said copies have been deleted, changed and supplemented with the approval of this Council, and each and all of the regulations, provisions, conditions, requirements thereof are hereby adopted as the Alameda Electrical Code for prescribing regulations for safeguarding of persons and property from hazards arising from the use of electricity in the City of Alameda, and by this reference are incorporated herein and made a part hereof to the same effect as though set forth herein in full. Section 2 Changes Additions and Deletions The changes, additions and deletions of said National Electrical Code, placed on file with the City Clerk, hereinafter set firth and designated -1- are hereby approved and adopted as follows: Deletions The following sections of the National Electrical Code shall be deleted from said code upon incorporation with this Code: ' Article 230 -26 230 -40 230 -43 230 -48 230 -50 230 -51 230 -52 250 -43 250 -43 (f) Exception Only 250 -43 (g) Exception Only 250 -83 250 -115 300 -5 (a) Exception 4 300 -5 (c) 320 334 -6 336 -8 336 -9 338 -2 350 -5 442 -24 430 -86 555 600 -2 (a) Additions I ARTICLE 210 BRANCH CIRCUITS Article 210 -5(c) Ungrounded Conductors is amended by adding the following: "Ungrounded conductors of a multiwire branch circuit shall each be of a color or distinguishment to identify the feeder by which it is supplied and each conductor of the same identification shall be connected to tha >ame feeder." -2- Article 210 -19 Conductors Minimum Ampacity and Size, (b) Household Ranges and Cooking Appliances is amended by adding the following: "All conductors supplying a household range or a combin- ation of counter - mounted cooking units and wall- mounted ovens shall not be smaller than No. 6 AWG, and for electric dryers shall not be smaller than No. 8 AWG, nor smaller than No. 14 copper for other loads." Article 210 -25 Receptacle Outlets Required (a) General is amended by adding the following: "Where flexible cords are used, receptacle outlets shall be provided within six feet (6') of the location of fixed or stationary electric appliances." Article 210 -25 Receptacle Outlets Required (b) Dwelling type Occupancies is amended by adding the following: "One receptacle outlet shall be installed in the ceiling of residential garages having overhead opening type doors, at a point convenient for the installation of an electric door operator at each such door." II ARTICLE 215 FEEDERS Article 215.2(d) Voltage Drop is amended by adding the following: "The size of the conductors for feeders shall be such that the voltage drop for the load as computed by Section 220 -4 shall not be more than 3% for power, heating or lighting loads or combinations thereof. Providing further that the maximum total voltage drop -3- for conductors and branch circuits shall not exceed 5 1 % over all." III ARTICLE 220 BRANCH CIRCUIT AND FEEDER CALCULATIONS Article 220 -3 Branch Circuits Required ( a) Lighting and Appliance Circuits (b) Receptacle Circuits, Dwelling Occupancies and (i) Electric Ranges is amended by adding the following: "(a) For general illumination in single and multi - family dwellings, not less than one branch circuit shall be installed for each five hundred (500) square feet of floor area in addition to the receptacle circuits called for in Paragraph (b) below. (b) For the small appliance load in kitchen, laundry, pantry, breakfast room and dining room of dwelling occupancies, two or more 20 ampere branch circuits in addition to the branch circuits specified in Section 220 -3(a) shall be provided for all receptacle outlets in these rooms, and such circuits shall have no other outlets. Each such circuit shall be limited to six (6) outlets. An individual branch circuit shall be provided for each garbage, disposal, dishwasher and fixed appliance over 1350 watts. NOTE: Disposal may be on same circuit with gas furnace fan. (i) For each dwelling unit the feeders supplying household electric ranges, combination counter - mounted cooking tops, and wall- mounted ovens shall be computed in accordance with Table 220 -5, Column A; or at full nameplate rating for calculations in accordance with Article 220 -9." -4- IV ARTICLE 230 SERVICES Article 230 -26 Point of Attachment is amended by deleting the existing section and inserting the following: "Unless special permission is granted in advance to do otherwise, the location of the point of service -drop support or attachment on a building shall be at that portion of the building facing and nearest to the street, alley, easement, or public way on which is located the utility's pole having facilities for rendering service of the type required to fit the needs of the particular installation involved. The point of attachment shall be the portion of service conduit adjacent to the service head. The service conduit shall be securely fastened to structure served and provided for attachment of a service drop strain clamp by the serving Utility. The outer or upper end of the overhead service conduit shall not overhang or project horizontally more than eighteen inches (18 ") beyond the last point at which the conduit is supported and fastened. In cases where it is necessary to obtain the required height for support of the service drops by extending the service conduit above the roof of a building, only rigid metal conduit shall be used for this purpose and shall not be smaller than one and one - quarter inches (1 -1/4 ") trade size, nor extend more than thirty inches (30 ") beyond the last support. If nonferrous metal conduit is used it shall not be smaller than two inches (2 ")." -5- Article 230 -32 Protection Against Damage is added to read as follows: "Underground service conductors shall be protected against physical damage by being installed in rigid steel conduit or rigid non - metallic conduit sized not smaller than one and one - quarter inches (1- 1/4 "). On utility poles conduit risers shall be rigid steel up to a height of eight feet (8' ) . Article 230 -40 Insulation of Service Entrance Conductors is amended by deleting the existing section and inserting as follows: "Service entrance conductors entering buildings or other structures shall be insulated. Where the nominal voltage to ground of any conductor is not over three hundred (300 volts), a bare grounded copper conductor may be installed. Aluminum conductors installed in underground raceway shall have Type U.S.E. insulation." Article 230 -43 Wiring Methods is amended by deleting the existing sections and inserting as follows: "Except when installed as busways or cablebus, all service entrance conductors in or on buildings shall be installed in rigid metal conduit. Service entrance conduits installed to supply single and duplex family units shall not be smaller than one and one - quarter inches (1 -1/4 ") trade size. Service entrance conduits installed to supply structures containing three or more family units shall be of -6- sufficient size to contain the service entrance conductors as set forth in Chapter 9, Table No. 1, but in no case smaller than one and one -half inches (1 -1 /2 ") trade size. (a) Where service conduit passes into the wall, roof, or other portion of any building it shall be installed so as to effectively prevent leakage of water into the building around the conduit. (b) Where service is run on the exterior of buildings having plastered exterior finish, the conduit shall be so installed that it will not be wholly or partially embedded in the plaster. Such surface run of conduit shall preferably be installed after the last coat of plaster has been applied, but may be installed before the last coat of plaster is applied if the conduit is neatly secured in place with galvanized metal hangers or fastenings or other approved means (not wooden blocks) that support it away from the sheathing so as to permit the required thickness of plaster to be spread underneath. (c) The length of the service conduit within a building shall be as short as is reasonably practicable and shall in no case exceed thirty (30') linear feet." Article 230 -48 Raceway Seal is amended by deleting the existing section and inserting as follows: "Where a service raceway or duct enters from an under- ground distribution system, the end within the building and the end in the underground box shall be sealed with suitable compound so as to prevent the entrance of arm moisture or gases. Spare or unused ducts shall also be sealed." Article 230 -54 Connections at Service Head is amended by adding the following: "The service head shall be located on that portion of the building served which is facing the serving line. The service head shall be located at that height which will allow for the proper clearance of the service drop over street, curb and sidewalk. This will require that the service head for residential occupancies be not less than twelve feet, six inches (12'6 ") above the driveway where the drops may cross a private driveway, and not less than ten feet, six inches (10'6 ") above the ground where persons may walk, other than a public walk, which requires a clearance of sixteen feet (16') above the curb. If the height of the building involved is such that these clearance heights cannot be maintained, then a periscope- type service or some other auxiliary structure shall be resorted to. In the event that a periscope -type service is used it may be placed on the side of the building served not more than eighteen inches (18 ") back of the wall which is facing the serving line." Article 230 -205 Disconnecting Means is amended by adding the following: "(a) Location. The service disconnecting means shall be located at a readily accessible point nearest to the entrance of the service conductors, and in residential property shall be accessible from the exterior, except where a met r room -8- is provided. Such service disconnecting means shall not be installed under show windows, or in the cases of multiple occupancies in any location not readily accessible to all parties concerned. (b) Types Permitted. A separate service disconnecting means shall be provided for each separately metered subdivision of the service conductors. Switches or circuit breakers accessible from the exterior of the building shall be limited to one for each meter; however, exceptions will be granted in cases involving provisions for the installation of major household appliances, provided that the overcurrent devices are contained within a single panelboard assembly approved for the purpose, in which case the number of circuits shall be limited to six (6). (c) Simultaneous Openings: The service disconnecting means shall simultaneously interrupt each ungrounded conductor and shall have provisions for locking the disconnect in the "Off" position with a utility type lead wire seal." V ARTICLE 240 OVERCURRENT PROTECTION Article 240 -24 Location on Premises is amended by adding the following: "In new installations, not more than two feeder or branch - circuit overcurrent devices shall be installed on the load side of any meter in any meter cabinet opening to the exterior of a building. For a larger number of overcurrent devices, a distribution center shall be provided at suitable location within the building. Exception to this rule will -9- be granted in cases involving provision for the installation of major household appliances, provided that the overcurrent devices are contained within a single panelboard assembly approved for the purpose. In apartment houses and other buildings of multiple occupancy, branch - circuit overcurrent devices which are located in an apartment or portion of the building intended to be separately occupied by one tenant will not be considered as being readily accessible if they protect circuits supplying any outlets or equipment located in an apartment or portion of the building intended to be occupied by some other tenant. The overcurrent device may be located in a commonly access- ible location but all circuits supplying individual apartments in multi - family dwellings shall be confined to each individual apartment served. In remodel jobs where this is impracticable, exceptions may be granted by the authority enforcing the code." VI ARTICLE 250 GROUNDIN Article 250 -80 Bonding of Piping Systems - Specific is added to read as follows: "Interi.or and exterior water system shall be bonded to the service ground and the interior gas piping shall be bonded to the water system piping, such connection shall be visible at the time of rough inspection." Article 250 -81 Water Pipe Electrode is amended by adding the following: "A concrete encased electrode shall be installed during the construction of all new buildings as an auxiliary -10- ground. A rod electrode shall be installed at service entrance location at time of alteration or installation of service to existing buildings as an auxiliary grounding means." Article 250 -83(a) Made Electrodes - Specific is amended by deleting the existing section and inserting as follows: "(a) Concrete Encased Electrodes. Not less than twenty feet (20') of bare copper conductor of a size specified in Table 250- 94(a), and in no case smaller than No. 4, encased along the bottom of a concrete foundation footing which is in direct contact with the earth. Two steel reinforcing rods twenty feet (20') each in length and not smaller than No. 4, one -half inch (1/2 ") nominal diameter may be installed in lieu of the copper conductor described in 250- 83(a). These two bars must extend through not less than thirty feet (30') of the foundation and be placed three inches (3 ") above the bottom of the foundation. One end of each rod shall project eight inches (8 ") above the top of the footing at a point adjacent to the service location. The service ground connection to these electrodes shall be readily accessible." Article 250 -115 Connection of Electrodes is amended by deleting the existing section and inserting as follows: "The clamp for the attachment of the system grounding conductor to the grounding electrode shall be an approved bolted cast clamp. The point of attachment shall be readily accessible." -11- VII ARTICLE 324 CONCEAL KNOB AND TUBE WIRING Article 324 -3 Uses Permitted - Specific is added to read as follows: "Concealed Knob and tube wiring may only be used for repair of existing knob and tube wiring or one outlet extension." VIII ARTI CLE 334 CLA CABLE Article 334 -6 Use, is amended by deleting the existing section and inserting as follows: "Metal -clad cable may only be used for concealed or exposed work in wood frame construction, or by special permission in other locations where other wiring methods are impracticable. It is limited to use on circuits not exceeding 300 volts between conductors or 150 volts to ground. Metal -clad cables Type AC, ACT and ACL may not be installed in Fire Zone No. 1." Article 334 -8 Supports is amended by adding the following: "(a) Cable (Sizes No. 14 to No. 10, inclusive) in accessible attics shall be run through holes bored in the joists or be protected by other approved means." IX ARTICLE 336 NON - METALLIC SHEATHED CABLE Article 336 -3 Uses Permitted or Not Permitted is amended by adding the following: "(1) Non - metallic sheathed cable may be used in the hollow spaces of walls and ceilings of wood frame construction and must be concealed by the permanent finish of the building. It is limited to use on circuits not exceeding 300 volts between conductors of 150 volts to ground. Non - metallic -12- sheathed cable may not be installed in Fire Zone No. 1." Article 336 -8 In Unfinished Basements is amended by adding the following: "In wood frame construction where not exposed to physical damage, cable shall either be run through bored holes in joists, parallel to joists or on girders or running boards and shall closely follow the vertical surface of such members. (Basements with more than 3" and less than 8" clearance - joist to ground - are considered exposed to physical damages.) If the permanent finish is not to be applied at the time of request for electrical inspection, a metal -clad system of wiring shall be used in the unfinished area of the building." Article 336 -9 In Accessible Attics is amended by deleting the existing section and replacing as follows: "336 -9 In Accessible Attics (Size No. 14 to No. 10, Inclusive) Cable in accessible attics shall be run through holes in the joists or be protected by other approved means." X ARTICLE 338 SERVICE - ENTRANCE - CABLE Article 33B -3 Uses Permitted as Branch Circuits or Feeders (b) Grounded Conductor Not Insulated is amended by adding the following: "Service Entrance Cable Types SE, ABN or armored may be used for ranges, wall- mounted ovens, counter - mounted cooking units, clothes dryers and water heaters in residential occupancies only." -13- XI ARTICLE 348 ELECTRICAL METALLIC TUBING Article 348 -1 Use is amended by adding the following: "Electrical metallic tubing shall not be used in the ground floor slab or in any location where it would be in contact with the ground." XII ARTICLE 350 FLEXIBLE METAL CONDUIT Article 350 -5 Grounding is amended by adding the following: "Flexible metal conduit shall be bonded by a conductor sized in accordance with Table 250 -95 installed so as to be independent of flexible conduit fittings for continuity." XIII ARTICLE 370 BOXES AND FITTINGS Article 370 -7 Conductors Entering Boxes or Fittings is amended by adding the following: "(b) All conductors including grounding conductors entering boxes enclosing flush- mounted devices in new work shall be insulated." Article 370 -17(a) Boxes at Lighting Fixture Outlets is amended by adding the following: "Lighting outlet boxes installed in fire rated ceilings are required to be metal (Uniform Building Code). Non- metallic boxes that deform at 600 ° F. temperatures are not permitted for ceiling lighting outlet use." XIV ARTICLE 380 SWITC Article 380 -3 Enclosures is amended by adding the following: "An auxiliary wiring gutter shall be provided when there -14- are more than two selfcontained enclosed switches to be supplied through one set of conductors. No conductors shall pass through any switch case, except the conductors feeding to or controlled by that particular switch." XV ARTICLE 384 SWITCHBOARDS AND PANELBOARDS Article 384 -4 Location of Switchboards is amended by adding the following: "Lighting distribution panels shall be approved dead front type and shall be within the building or apartment being supplied for same. All switchboards or panelboards shall have adequate illumination for safety of operation and repair. The lights and switches used for the control of such illumination shall be so located that they will be readily and safely accessible." XVI ARTICLE 410 LIGHTING FIXTURES LAMPHOLDERS LAMPS RECEPTACLES AND ROSETTES Article 410 -3 -1 Control of Lighting Fixtures is amended by adding the following: "Fixtures which are operated through any type of switching device which is part of the lampholder, such as pull chain sockets, key sockets, or push type sockets, shall not be used in bathrooms, kitchens, laundry rooms or on the exterior of buildings or structures or within eight feet (8') vertically of five feet (5') horizontally of a grounded surface. It is recommended that fixtures in such locations be controlled by wall switches." -15- XVII ARTICLE 422 APPLIANCES Article 422 -8(d) Domestic Installations is amended by adding the following: "An approved grounding type plug receptacle shall be provided for the connection of electrically powered kitchen waste disposal, built -in trash compactors, and dishwashing appliances. The final connection between the plug receptacle and the appliance terminal housing shall be made through the use of an approved three - conductor cord, and grounding type plug assembly. An approved receptacle or junction box secured to the building shall be provided for the connection of fixed or stationary appliances." Article 422 -24 Unit Switches as Disconnecting Means is amended by deleting the existing section and replacing as follows: "Unit switches that are a part of an appliance shall require additional means for disconnection as required by Part D. This disconnecting means shall be readily accessible to the tenant at all times." XVIII ARTICLE 430 MOTOR CIRCUITS AND CONTROLLERS Article 430 -86 Motor Not in Sight From Controller is added to read as follows: "Where a motor and the driven machinery are not in sighL from the controller location, the installation shall provide a manually - operable device, placed at the motor location which will disconnect the motor from its source of supply." -16- XIX ARTICLE 555 BOAT HARBOR WIRING Article 555 -6 Wiring Method is amended by deleting the existing section and replacing as follows: "Exception No. 1. Where flexibility is required the wiring method may be liquid -tight flexible metal conduit, (Article 351), and for extreme flexibility shall be Type S -SO or ST. flexible cord - installed in accordance with Article 400. Exception No. 2. Not in effect." XX ARTICLE 600 ELECTRIC SIGNS AND OUTLINE LIGHTING Article 600 -1 Scope is amended by adding as follows: "These provisions shall be supplementary to any and all local ordinances or regulations which govern the location, erection and /or structural support of signs." Article 600 -2(a) In Sight of Sign is amended by deleting the existing section and replacing as follows: "In addition to the switch required by Section 600 -2 an approved disconnecting means shall be provided for the disconnecting of all signs and /or outline lighting and shall be so located that it shall be within sight of the sign and /or outline lighting and under the control of authorized sign servicemen but normally not readily accessible to unauthorized persons whenever operating voltages are in excess of 1,000 volts. When said disconnecting means controls roof signs, it shall be located nor more than six and one -half feet (6 -1/2') above the roof." Article 600 -7 Marking is amended by adding as follows: -17- "The inspection label of the Underwriters' Laboratories shall be required on all new signs. Exceptions may be made to this requirement in the case of signs which must be fabricated on the job, but such exceptions require that the sign bear evidence of approval by the Local Inspection Department. A label showing evidence of approval by the Local Inspection Department will be required on all signs being moved from one location to another and on all existing signs requiring any alteration to the electrical circuits except the changes or replacement of tubing and other normal repairs." Article 600 -10 Electric Power Lines is amended by adding the following: "No sign shall be constructed, installed or erected which has less horizontal or vertical clearance from energized electric power lines than prescribed by the California Penal Code Section 385, the regulations of the California Public Utilities Commission General Order No. 95, Rule No. 39, and the orders of the Division of Industrial Safety, State of California." XXI ARTICLE 680 SWIMMING POOLS FOUNTAINS AND SIMILAR INSTALLATIONS Article 680 -2(a) Approval of Equipment is amended by adding as follows: "All underground wiring to and within twenty feet (20') of swimming pools and similar installations shall be in rigid non - metallic conduit or rigid steel or other -18- non-corrosive metal conduit (aluminum conduit not permitted}." Section 2. This ordinance shall be in full force and effect from and after the expiration of thirty (30) days from r the date of its final passage. I _ - < D PresidjOq'officer of the Council Attest: City Clerk -19- I, the undersigned, hereby certify that the foregoing Ordinance was duly and regularly adopted and passed by the Council of the City of Alameda in adjourned regular meeting assembled on the 24th day of May, 1977, by the following vote, to wit: AYES: Councilmen Beckam, Diament, Sherratt, Tillman and President Corica, (5). NOES: None. ABSENT: None. IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal of said City this 25th day of May, 1977. City Clerk of the City of Alameda