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Home My WebLink About08-10 CC Ordinance ORDINANCE NO. 08-10 ' AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF TEMECULA AMENDING SECTION 15.04.030 OF THE TEMECULA MUNICIPAL CODE RELATING TO THE CALIFORNIA ELECTRICAL CODE THE CITY COUNCIL OF THE CITY OF TEMECULA DOES HEREBY ORDAIN AS FOLLOWS: Section 1. Section 15.04.030 of Chapter 15.04 of Title 15 of the Temecula Municipal Code is hereby amended by adding paragraphs F-J amending California Electrical Code Sections 690.4(A), 690.14(A), 690.14(C)(2), 690.31(e) and 690 Part VI, as follows: "F. 690.4 (A) is hereby amended to read as follows: Only registered California Contractors License Board entities with a valid A, B, C-10 or C-46 contractor license or the property owner shall install solar photovoltaic systems. Valid copies of the entity's City of Temecula Business License and California Contractors License Board license shall be submitted on the plans. ' Roof mounted systems - Complete plans and substantiating design calculations shall be submitted showing supporting member sizes, dimensions, materials and the loads which will be imposed on the roof structure. Where the supporting framework of the modules or arrays are shown as part of the laboratory approved system, additional design calculations will not be required for the supporting framework of the modules or arrays provided as they are included in the approved listing. Solar photovoltaic modules and/or arrays shall be installed over only one roof covering unless approved by a California licensed engineer for weight and wind uplift loads. Solar systems not installed on roofs - Foundation and/or footings size plans and substantiating design calculations shall be submitted showing supporting member sizes, dimensions, materials and the loads which will be imposed on the foundation or footings. Where the supporting framework of the modules or arrays are shown as part of the laboratory approved system, design calculations will not be required for the supporting framework of the modules or arrays provided they are included in the approved listing. Photovoltaic systems shall be marked for their use. Materials used for marking shall be weather resistant and meet Underwriters Laboratories Marking and Labeling System 969 (UL969) standards for weather rating. R:/Ords 2008/Ords 08-10 1 ACCESS, PATHWAYS AND SMOKE VENTILATION r Access and spacing requirements shall be required in order to: • Ensure access to the roof • Provide pathways to specific areas of the roof • Provide for smoke ventilation opportunities area • Provide emergency egress from the roof Designation of ridge, hip, and valley layout does not apply to roofs with 2-in-12 or less pitch. All roof dimensions are measured to centerlines. Roof access points shall be defined as areas where ladders are not placed over openings (i.e., windows or doors) and are located at strong points of building construction and in locations where they will not conflict with overhead obstructions (i.e., tree limbs, wires, or signs). Residential Systems-Single and Two-Unit Residential Dwellings 1. Access/Pathways Residential Buildings with hip roof layouts: Modules shall be located in a manner that provides one (1) three-foot (3') wide clear access pathway from the eave to the ridge on each roof slope where modules are located. The access pathway should be located at a structurally strong location on the building (such as a bearing wall). ' Residential Buildings with a single ridge: Modules shall be located in a manner that provides two (2) three-foot (3') wide access pathways from the eave to the ridge on each roof slope where modules are located. Hips and Valleys: Modules shall be located no closer than one and one half feet (18 inches) to a hip or a valley if modules are to be placed on both sides of a hip or valley. If the modules are to be located on only one side of a hip or valley that is of equal length then the modules may be placed directly adjacent to the hip or valley. 2. Smoke Ventilation The modules shall be located no higher than three feet (3') below the ridge. Commercial Buildings and Residential Housing comprised of Three (3) or More Units Exception: If the Temecula fire department determines that the roof configuration is similar to residential (such as in the case of townhouses, condominiums, or single family attached buildings), the Temecula fire department may make a determination to apply the residential access and ventilation requirements. 1. Access There shall be a minimum six foot (6') wide clear perimeter around the edges of the ' roof. RJOrds 200810rds 08-10 2 Exception: If either axis of the building is 150 feet or less, there should be a minimum four feet (4') wide clear perimeter around the edges of the roof. 2. Pathways Pathways shall be established in the design of the solar installation and meet the following requirements: a. Located over structural members b. Centerline axis pathways shall be provided in both axis of the roof. Centerline axis pathways shall run on structural members or over the next closest structural member nearest to the center lines of the roof c. Shall be a straight line not less than 4 feet (4') clear to skylights and/or ventilation hatches d. Shall be a straight line not less than 4 feet (4') clear to roof fire standpipes e. Shall provide not less than 4 feet (4') clear around roof access hatch with at least one not less than 4 feet (4') clear pathway to parapet or roof edge 3. Smoke Ventilation a. Arrays shall be no greater than 150 by 150 feet in distance in either axis b. Ventilation options between array sections shall be either: 1. A pathway 8 feet (8') or greater in width 2. 4 feet (4') or greater in width pathway and bordering on existing roof with skylights or ventilation hatches ' 3. 4 feet (4') or greater in width pathway and bordering four feet (4') x 8 feet (8') "venting cutouts" every 20 feet (20') on alternating sides of the pathway G. Section 690.14 (A) is hereby amended to read as follows: Disconnecting Means - The main electrical panel disconnecting means shall be designed to shut off all power to all conductors inside structure(s). This includes both Solar (Direct Current) and Utility (Alternating Current). H. Section 690.14 (C) (2) is hereby amended to read as follows: Marking Content and Format for Disconnects • Marking content: CAUTION: SOLAR ELECTRIC SYSTEM CONNECTED • Red background • White lettering • Minimum 3/8 inch height • All capital letters • Arial or similar font, non-bold • Reflective, weather resistant material suitable for the environment - Materials used for marking shall be weather resistant and meet Underwriters Laboratories Marking and Labeling System 969 (UL969) standards for weather rating (durable adhesive materials may meet this requirement). R:/Ords 2008/Ords 08-10 3 The marking shall be placed immediately adjacent to the main service disconnect in a location clearly visible from the main service disconnect. 1. Section 690.31 (E) is hereby amended to read as follows: Direct-Current Photovoltaic Source and Output Circuits Inside a Building. Where direct current photovoltaic source or output circuits of a utility-interactive inverter from a building-integrated or other photovoltaic system are run inside a building or structure, they shall be contained in metallic raceways or enclosures from the point of penetration of the surface of the building or structure to the first readily accessible disconnecting means. DC wiring shall be installed, to the maximum extent possible, along the bottom of load-bearing members. The disconnecting means shall comply with 690.14(A) through 690.14(D). Conduit, wiring systems, and raceways for photovoltaic circuits shall be located as close as possible to the ridge or hip or valley and from the hip or valley as directly as possible to an outside wall to reduce trip hazards and maximize fire suppression ventilation opportunities. Conduit runs between sub arrays and to DC combiner boxes shall use design guidelines that minimize total amount of conduit on the roof by taking the shortest path from the array to the DC combiner box. The DC combiner boxes are to be located such ' that conduit runs are minimized in the pathways between arrays. J. Section 690 Part VI is hereby amended to add the following: Marking for Direct Current Conduit, Raceways, Enclosures, Cable Assemblies, and Junction Boxes Marking shall be required on all interior and exterior DC conduit, raceways, enclosures, cable assemblies, and junction boxes. Marking shall be placed every 10 feet, at turns, sweeps, immediately above and/or below penetrations and on all DC combiner and junction boxes. Marking Content and Format for Direct Current Conduit, Raceways, Enclosures, Cable Assemblies, and Junction Boxes • Marking content: CAUTION: SOLAR CIRCUIT • Red background • White lettering • Minimum 3/8 inch height • All capital letters • Arial or similar font, non-bold • Reflective, weather resistant material suitable for the environment - Materials used for ' marking shall be weather resistant and meet Underwriters Laboratories Marking and RJOrds 2008/Ords 08-10 4 Labeling System 969 (UL969) standards for weather rating (durable adhesive materials ' may meet this requirement)." Section 2. If any sentence, clause or phrase of this ordinance is for any reason held to be unconstitutional or otherwise invalid, such decision shall not affect the validity of the remaining provisions of this ordinance. The City Council hereby declares that it would have passed this ordinance and each sentence, clause or phrase thereof irrespective of the fact that any one or more sentences, clauses or phrases be declared unconstitutional or otherwise invalid. Section 3. The City Clerk of the City of Temecula shall certify to the passage and adoption of this Ordinance and shall cause the same or a summary thereof to be published and posted in the manner required by law. PASSED, APPROVED, AND ADOPTED by the City Council of the City of Temecula this 18th day of November, 2008. \ ~ lV Michael S. Na ar, Mayor ' ATTEST: Susan W. Jones, MMC CI [SEAL] 1 RJOrds 2008/Ords 08-10 5 STATE OF CALIFORNIA ) COUNTY OF RIVERSIDE ) ss CITY OF TEMECULA ) I, Susan W. Jones, MMC, City Clerk of the City of Temecula, do hereby certify that the foregoing Ordinance No. 08-10 was duly introduced and placed upon its first reading at a meeting of the City Council of the City of Temecula on the 28th day of October, 2008, and that thereafter, said Ordinance was duly adopted by the City Council of the City of Temecula at a meeting thereof held on the 18th day of November, 2008, by the following vote: AYES: 4 COUNCIL MEMBERS: Comerchero, Edwards, Washington, Naggar NOES: 0 COUNCIL MEMBERS: None ABSENT: 1 COUNCIL MEMBERS: Roberts ABSTAIN: 0 COUNCIL MEMBERS: None Susan . Jones, MMC City Clerk 1 RJOrds 2008/Ords 08-10 6