Section 3111F — ELECTRICAL SYSTEMS — 2025 California Building Code (Title 24, Part 2)

3111F.1 General. ¶

3111F.1 General. This section provides minimum standards for electrical systems at marine oil terminals. Electrical systems include the incoming electrical service and components, the electrical distribution system, branch circuit cables and the connections, including, but not limited to: 1. Lighting, for operations, security and navigation 2. Controls for mechanical and electrical equipment 3. Supervision and instrumentation systems for mechanical and electrical equipment 4. Grounding and bonding 5. Corrosion protection through cathodic protection 6. Communications and data handling systems…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject

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3111F.2 Hazardous area designations and plans (N/E). ¶

3111F.2 Hazardous area designations and plans (N/E). Area classifications shall be determined in accordance with API RP 500 [11.3], API RP 540 [11.1] and Articles 500, 501, 504, 505 and 515 of the California Electrical Code [11.2]. A marine oil terminal shall have a current set of scaled plan drawings, with clearly designated areas showing the hazard class, division and group. The plan view shall be supple- mented with sections, elevations and details to clearly delineate the area classification at all elevations starting from low water level. The drawings shall be certified by a professional…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district

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3111F.3 Identification and tagging. ¶

3111F.3 Identification and tagging. All electrical equipment, cables and conductors shall be clearly identified by means of tags, plates, color coding or other effective means to facilitate troubleshooting and improve safety, and shall conform to the identification carried out for the adjacent on-shore facilities (N). Topics for such identification are found in Articles 110, 200, 210, 230, 384, 480 and 504 of the Cali- fornia Electrical Code [11.2]. Existing electrical equipment (E) shall be tagged. Where identification is necessary for the proper and safe operation of the equipment, the…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height

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3111F.4 Purged or pressurized enclosures for equipment in hazardous locations (N/E). ¶

3111F.4 Purged or pressurized enclosures for equipment in hazardous locations (N/E). Purged or pressurized enclosures shall be capable of preventing the entry of combustible gases into such spaces, in accordance with NFPA 496 [11.4]. Special emphasis shall be placed on reliability and ease of operation. The pressurizing equipment shall be electrically monitored and alarms shall be provided to indicate failure of the pressurizing or purging systems. Pressurized control rooms shall conform to Chapter 7 of NFPA 496 [11.4].

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision

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3111F.5 Electrical service. ¶

3111F.5 Electrical service. Where critical circuits are used for spill prevention, fire control or life safety, an alternative service derived from a separate source and conduit system, shall be located at a safe distance from the main power service. A separate feeder from a double-ended substation or other source backed up by emergency generators will meet this requirement. A stored energy emergency power system (SEEPS) shall be provided for control and supervisory circuits associated with ESD systems (N), see Section 3111F.5.1. 1. Electrical, instrument and control systems used to activate…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3111F.6 Grounding and bonding (N/E). ¶

3111F.6 Grounding and bonding (N/E). 1. All electrical equipment shall be effectively grounded as per Article 250 of the California Electrical Code [11.2]. All noncurrent carrying metallic equipment, structures, piping and other elements shall also be effectively grounded. 31F-90 2025 CALIFORNIA BUILDING CODE on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. MARINE OIL TERMINALS 2. Grounding shall be considered in any active corrosion protection system for on-shore piping, submerged support structures or other systems. Insulation barriers, including flanges or nonconducting hoses shall be used to…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3111F.7 Equipment specifications (N). ¶

3111F.7 Equipment specifications (N). All electrical systems and components shall conform to National Electrical Manufacturers Asso- ciation (NEMA) standards or be certified by a Nationally Recognized Testing Laboratory (NRTL).

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3111F.8 Illumination (N/E). ¶

3111F.8 Illumination (N/E). 3111F.8.1 Illumination Locations. At a minimum, MOTs shall provide fixed lighting (or luminaires) that illuminates the following areas: 1. Transfer connection points on the MOT 2. Transfer connection points on any barge moored at the MOT that may transfer oil 3. Transfer operations work areas on the MOT 4. Transfer operations work areas on any barge moored at the MOT that may transfer oil 5. Areas defined in Sections 17.4 and 24.6.4 of ISGOTT [11.7], as appropriate Lighting shall be located or shielded so as not to mislead or otherwise interfere with off-site areas…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3111F.9 Communications, control and monitoring systems. ¶

3111F.9 Communications, control and monitoring systems. 3111F.9.1 Communication systems (N/E). Communications systems shall comply with 2 CCR 2370 [11.7] and Section 6 of OCIMF “Guide on Marine Terminal Fire Protection and Emergency Evacuation” [11.9]. 3111F.9.2 Overfill monitoring and controls (N/E). Overfill protection systems shall conform to Appendix C of API Standard 2350 [11.10]. These systems shall be tested before each transfer operation or monthly, whichever is less frequent. Where vessel or barge overfill sensors and alarms are provided, they shall comply with 33 CFR 154.2102…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3111F.10 Cathodic Protection Systems (CPS) (N/E). ¶

3111F.10 Cathodic Protection Systems (CPS) (N/E). CPS operating, testing and maintenance criteria for underwater structures shall conform to UFC 3-570-01 [11.12]. Structure-to-electrolyte potential measurements shall be taken at least annually. CPS operating, test- ing and maintenance criteria for buried and submerged pipelines shall conform to API 570 [11.13]. All electrical insulating and isolating devices for protection against static, stray and impressed currents shall be tested in accordance with 2 CCR 2341 and 2380 [11.7]. CPS design criteria and location of anodes, electrical leads and…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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3111F.11 Electrical systems seismic assessment (N/E). ¶

3111F.11 Electrical systems seismic assessment (N/E). Electrical systems shall have a seismic assessment per Section 3104F.5. For strength evaluation of supports and attachments, see Section 3107F.7.

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3111F.12 References. ¶

3111F.12 References. [11.1] American Petroleum Institute (API), 1999, API Recommended Practice 540 (R2004) (API RP 540), “Electrical Installations in Petroleum Processing Plants,” 4th ed., Washington, D.C. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. MARINE OIL TERMINALS [11.2] California Code of Regulations (CCR), Title 24, Part 3, California Electrical Code. [11.3] American Petroleum Institute (API), 2012 (Errata January 2014), API Recommended Practice 500 (API RP 500), “Recom- mended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as…

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use

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