Source: https://www.scribd.com/document/272202038/Cafe-Utilizacao
Timestamp: 2019-01-22 16:46:37
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Matched Legal Cases: ['§2700', '§2700', 'art 77', 'art 77', '§ 15', '§ 21656', '§ 35', '§ 12501258', '§ 2700', '§ 2700', 'art 77', 'art 77']

Cafe Utilizacao | Electrical Substation | Hertz
Cafe Utilizacao
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Transmission System Engineering................................................................3-1
Introduction ................................................................................................ 3-1
Laws, Ordinances, Regulations, and Standards .......................................... 3-2
3.2.1 Design and Construction LORS................................................... 3-2
3.2.2 Electrical and Magnetic Fields LORS ......................................... 3-3
3.2.3 Hazardous Shock LORS .............................................................. 3-3
3.2.4 Communication Interference LORS ............................................ 3-3
3.2.5 Aviation Safety LORS ................................................................. 3-4
3.2.6 Fire Hazard LORS ....................................................................... 3-5
Transmission Line Description, Design and Operation.............................. 3-5
3.3.1 Transmission Interconnection System Impact Studies ................ 3-5
3.3.2 Existing Transmission Facilities .................................................. 3-6
3.3.3 Proposed Transmission Interconnection Facilities ...................... 3-7
3.3.3.1 Generator Step-up Substation and Tie-Line
Characteristics ............................................................... 3-7
3.3.3.2 Rio Mesa Switchyard .................................................... 3-8
3.3.3.3 Gen-Tie Line Characteristics ......................................... 3-8
3.3.3.4 Colorado River Substation ............................................ 3-8
Transmission System Safety and Nuisances .............................................. 3-8
3.4.1 Electrical Clearances .................................................................... 3-8
3.4.2 Electrical Effects .......................................................................... 3-9
3.4.2.1 EMF Effects................................................................... 3-9
3.4.2.2 Corona Effects ............................................................. 3-10
3.4.2.3 EMF and Corona Effects Assumptions ....................... 3-11
3.4.2.4 EMF and Corona Effects Calculations ........................ 3-12
3.4.2.5 Results of EMF and Corona Effects Calculations ....... 3-13
3.4.2.6 Transmission Line EMF Reduction............................. 3-16
3.4.2.7 EMF and Corona Effects Conclusions ........................ 3-17
3.4.3 Induced Current and Voltages ................................................... 3-17
3.4.4 Aviation Safety .......................................................................... 3-18
3.4.5 Fire Hazards ............................................................................... 3-18
Involved Agencies and Agency Contacts ................................................. 3-19
Permits Required and Permit Schedule .................................................... 3-19
References ................................................................................................ 3-21
Estimated Line Capacities for EMF and Corona Studies
Calculated Electric Field Levels from the Rio Mesa Gen-Tie Line
Calculated Radio Interference Levels Produced
During Fair Weather Conditions from the Rio Mesa Gen-Tie Line
Calculated Television Interference Levels Produced During Rainy
Weather Conditions from the Rio Mesa Gen-Tie Line
Calculated Audible Noise Levels Produced During Rainy Weather
Conditions from the Rio Mesa Gen-Tie Line
Calculated Magnetic Field Levels from the Rio Mesa Gen-Tie Line
Jurisdictional Agencies for Transmission System Engineering-Related LORS
Figure 3.4-5
Rio Mesa Switchyard General Layout
Rio Mesa 220 kV Single Circuit Structure Elevation
Electric Field Plot Diagram
Radio Interference Plot Diagram
Television Interference Plot Diagram
Audible Noise (Rain) Plot Diagram
Magnetic Field Plot Diagram
Appendix 3A CAISO Queue Cluster 3 Phase 1 Final Report
This Application for Certification (AFC) for the Rio Mesa Solar Electric Generating Facility (Rio Mesa
SEGF or Project) has been prepared in accordance with the California Energy Commission’s (CEC)
Power Plant Site Certification Regulations (CEC-140-2008-001-REV1, current as of July 2008). In
addition, this AFC includes elements necessary for the United States (U.S.) Bureau of Land Management
(BLM) to permit the Project through the National Environmental Policy Act (NEPA). The “Applicant”
for purposes of this AFC comprises Rio Mesa Solar I, LLC, Rio Mesa Solar II, LLC, and Rio Mesa Solar
III, LLC, owners of the three separate solar plants and certain shared facilities being proposed. These
three Delaware limited liability companies will hold equal one-third shares in the ownership of shared
facilities and will separately own their respective plants. They are wholly owned by Rio Mesa Solar
Holdings, LLC (a Delaware limited liability company) which is in turn wholly owned by BrightSource
Energy, Inc. (BrightSource) a Delaware corporation and the ultimate parent company. The Applicant will
use BrightSource’s solar thermal technology for the Rio Mesa SEGF.
The proposed project site is situated on the Palo Verde Mesa in Riverside County, California, 13 miles
southwest of the City of Blythe, and is located partially on private land and partially on public land
administered by BLM. The project will include three solar concentrating thermal power plants and a
shared common area to include shared systems. The first plant, a 250 megawatt (MW) (nominal) facility
known as Rio Mesa I, will be constructed at the south end of the project and owned by Rio Mesa Solar I,
LLC. The second plant, another 250 MW (nominal) facility known as Rio Mesa II, will be located in the
central portion of the project site and owned by Rio Mesa Solar II, LLC. Rio Mesa III, a third 250 MW
(nominal) facility, will be constructed in the northern portion of the project site and owned by Rio Mesa
Solar III, LLC. These three plants will be connected via a common overhead 220 kilovolt (kV) generator
tie-line (gen-tie line) to the Southern California Edison (SCE) Colorado River Substation (CRS)
approximately 9.7 miles to the north.
Each plant will utilize a solar power boiler (referred to as a solar receiver steam generator or SRSG),
located on top of a dedicated concrete tower, and solar field based on proprietary heliostat mirror
technology developed by BrightSource. The reflecting area of an individual heliostat (which includes two
mirrors) is about 19 square meters (205 square feet [sq. ft.]). The heliostat (mirror) fields will focus solar
energy onto the SRSG which converts the solar energy to superheated steam. In each plant, a Rankine
cycle non-reheat steam turbine receiving this superheated will be directly connected to a rotating
generator that generates and pushes the electricity onto the transmission system steam. Each plant will
generate electricity using solar energy as its primary fuel source. However, auxiliary boilers will be used
to operate in parallel with the solar field during partial load conditions and occasionally in the afternoon
when power is needed after the solar energy has diminished to a level that no longer will support solar
generation of electricity. These auxiliary boilers will also assist with daily start-up of the power
generation equipment and night time preservation.
This section addresses the scope of the direct connection facilities between the Rio Mesa SEGF and the
existing electrical transmission grid, and the anticipated impacts that operation of the facility will have on
the flow of electrical power in the project region. This analysis contains the following discussions:
hazardous shocks. Title 8 California Code of Regulations (CCR). including the gen-tie line. REGULATIONS.2. and substation facilities. and maintenance of electrical installation and equipment to provide practical safety and freedom from danger. CPUC. regulations.2-1 lists the application design and construction LORS for the electrical interconnection facilities. and inspection requirements. and fire hazards) Safety of the interconnection Applicable laws. General Order 52 (GO-52). “Construction and Operation of Power and Communication Lines” Applies to the design of facilities to provide or mitigate inductive interference.SECTIONTHREE Transmission System Engineering Proposed electrical interconnection between the Project and the electrical grid Impacts of the Project on the existing transmission grid Potential nuisances (electrical/magnetic field (EMF) effects. EMF. operation. switchyard. and standards (LORS) 3. grounding techniques. aviation safety. Suggestive Practices for Raptor Protection on Power lines. “Rules for Construction of Underground Electric Supply and Communications Systems” Establishes requirements and minimum standards to be used for the underground installation of alternating current (AC) power and communications circuits. Table 3. CPUC. IEEE 1119 “IEEE Guide for Fence Safety Clearances in Electric-Supply Stations” Provides recommended clearance practices to protect persons outside the facility from electric shock. CPUC. aviation safety. “High Voltage Electrical Safety Orders” Establishes essential requirements and minimum standards for installation. maintenance. ORDINANCES.2-1 Design and Construction LORS LORS Applicability GO-95. “Rules for Overhead Electric Line Construction” California Public Utilities Commission (CPUC) rule covers required clearances. 3. §§2700 et seq.2 LAWS. IEEE 980 “Containment of Oil Spills for Substations” Provides recommendations to prevent release of fluids into the environment. ordinances. General Order 128 (GO-128). April 1996 Provides guidelines to avoid or reduce raptor collision and electrocution AC CCR CPUC = GO = = = Alternating Current California Code of Regulations 3-2 California Public Utilities Commission General Order . IEEE 998 “Direct Lightning Stroke Shielding of Substations” Provides recommendations to protect electrical system from direct lightning strokes.1 Design and Construction LORS Table 3. and fire hazards LORS are also presented. AND STANDARDS This section describes the applicable LORS related to the design and construction of the proposed electrical interconnection facilities.
3-3 . Covers grounding methods for electrical supply and communications facilities. (In keeping with CPUC D.2 Electrical and Magnetic Fields LORS The applicable LORS pertaining to electric and magnetic field interference are listed in Table 3. Irwindale.4 = = Alternating Current California Code of Regulations Laws.2-4.2-3 Hazardous Shock LORS LORS Requirements/Applicability Title 8 California Code of Regulations (CCR) §§2700 et seq.2-3 lists the LORS regarding hazardous shock protection for the project. Paragraph C.2. 6090 Irwindale Avenue. (626) 812-7545. conductor configuration.3 California Public Utilities Commission Electromagnetic Field General Order Laws. AC CCR LORS = NESC = 3. Figures and Appendices 3. Southern California Edison Company. EMF Research and Education. Article 93. EMF Design Guidelines for Electrical Facilities. National Electrical Safety Code (NESC). and Substation Facilities in California CPUC construction application requirements. Table 3. Article 92. Line.2. circuit phasing. Ordinances. ANSI/IEEE 80 “IEEE Guide for Safety in Alternating Current (AC) Substation Grounding” Presents guidelines for assuring safety through proper grounding of AC outdoor substations. Rules for Planning and Construction of Electric Generation.93-11-013 and GO-131) CPUC = EMF = GO = LORS = 3. General Order 131-D (GO-131). and load balancing.2. Paragraph E. Regulations and Standards National Electrical Safety Code Communication Interference LORS The applicable LORS pertaining to communication interference are listed in Table 3. Section 9.Tables. Table 3.2-2 Electric and Magnetic Field LORS LORS Requirements/Applicability Decision 93-11-013 of the California Public Utilities Commission (CPUC) CPUC position on electromagnetic field (EMF) reduction. CPUC. operation and maintenance of electrical equipment to provide practical safety and freedom from danger. Regulations and Standards Hazardous Shock LORS Table 3. September 2004 Large local electric utility’s guidelines for EMF reduction through structure design. ANSI C2. “High Voltage Electrical Safety Orders” Establishes essential requirements and minimum standards for installation. California 91702.2-2. including requirements related to EMF reduction. Ordinances.
Compliance Plan 13-7 Prescribes the California Energy Commission (CEC)’s RI-TVI mitigation requirements. and Analysis of AM Broadcast Reradiation by Power Lines” Presents guidelines and procedures for dealing with reradiation of AM broadcast signals from power lines and other large metallic structures.SECTIONTHREE Transmission System Engineering Table 3. developed and adopted by the CEC in past siting cases. Table 3. Incidental Radiation” Prohibits operations of any device emitting incidental radiation that causes interference to communications. California Public Utilities Commission (CPUC) Covers all aspects of the construction. Measurement. “Operating Requirements. and maintenance of power and communication lines and specifically applies to the prevention or mitigation of inductive interference.2-5 Aviation Safety LORS LORS Requirements/Applicability Title 14 Code of Federal Regulations (CFR) Part 77 “Objects Affecting Navigable Airspace” Describes the criteria used to determine whether a “Notice of Proposed Construction or Alteration” (NPCA.25. Final Decision. CEC CFR CPUC GO = = = = 3. “Obstruction Marking and Lighting” Describes the FAA standards for marking and lighting of obstructions as identified by Federal Aviation Regulations Part 77.2-4 Communications Interference LORS LORS Requirements/Applicability Title 47 Code of Federal Regulations (CFR) § 15. Ordinances. in navigable airspace.5 California Energy Commission Code of Federal Regulations California Public Utilities Commission General Order LORS = RI = TVI = Laws. CFR = FAA = LORS = Code of Federal Regulations Federal Aviation Administration Laws. The regulation also requires mitigation for any device that causes interference. and near the boundary of airports. Ordinances. ANSI/IEEE 1260 “IEEE Guide on the Prediction. 70/7460-1G. Radio Interference and Television Interference (RI-TVI) Criteria (Kern River Cogeneration) Project 82AFC-2. operation. Regulations and Standards NPCA = PUC = 3-4 Notice of Proposed Construction or Alteration Public Utilities Code . CEC staff. §§ 21656-21660 Discusses the permit requirements for construction of possible obstructions in the vicinity of aircraft landing areas. Public Utilities Code (PUC).2.2-5 lists the aviation safety LORS that may apply to the proposed construction and operation of the Rio Mesa SEGF. FAA Advisory Circular No. Federal Aviation Administration [FAA] Form 7460-1) is required for potential obstruction hazards in navigable airspace. General Order 52 (GO-52). Regulations and Standards Radio Interference Television Interference Aviation Safety LORS Table 3.
“Rules for Overhead Electric Line Construction” § 35 CPUC rule covers all aspects of design. The IR is for a full-delivery. Figures and Appendices 3. system reinforcements necessary to mitigate the adverse impacts caused by the projects in the cluster under various system conditions. steam turbine plant with a total rated output of 750 MW.3 TRANSMISSION LINE DESCRIPTION.2-6 lists the LORS governing fire hazard protection for the Rio Mesa SEGF project. “Fire Prevention Standards for Electric Utilities” Provides specific exemptions from electric pole and tower firebreak and electric conductor clearance standards. California. construction. LLC (formerly known as Palo Verde Mesa. The QC3 Phase 1 Interconnection Study Report (Appendix A – Q#643AC) dated May 27. Ordinances. and specifies when and where standards apply. AC = CCR = CPUC = Alternating Current California Code of Regulations California Public Utilities Commission GO = LORS = General Order Laws. the Project was grouped with Queue Cluster 3 Phase I Study (QC3) projects to determine the impacts of the group as well as impacts of the Project on the CAISO Controlled Grid. Rio Mesa Solar Holdings. and 3-5 . Regulations and Standards 3. LLC) submitted an Interconnection Request (IR) to the California Independent System Operator Corporation (CAISO) for interconnection of the Rio Mesa SEGF Project to the CAISO Controlled Grid at SCE’s CRS in Blythe. good faith estimate of the clusters and the RMS Project’s individual cost responsibility and time to construct these facilities. input from SCE and the CAISO.6 Fire Hazard LORS Table 3.3. 2010. 2011 provides information on: transmission system impacts caused by the projects in the cluster.Tables. California Public Utilities Commission (CPUC). DESIGN AND OPERATION 3. operation. Preliminary engineering of the proposed transmission interconnection was based on the results of the QC3 Phase 1 Interconnection Study Report. and maintenance of electrical transmission line and fire safety (hazards). General Order 95 (GO-95). physical survey data. ANSI/IEEE 80 “IEEE Guide for Safety in Alternating Current (AC) Substation Grounding” Presents guidelines for assuring safety through proper grounding of AC outdoor substations. Table 3.2. and a list of required facilities and a non-binding. In accordance with Federal Energy Regulatory Commission (FERC) approved Generator Interconnection Procedures (GIP) for Interconnection Requests in a Queue Cluster Window (CAISO Appendix Y).2-6 Fire Hazard LORS LORS Requirements/Applicability Title 14 California Code of Regulations (CCR) §§ 12501258.1 Transmission Interconnection System Impact Studies On December 6.
In addition. Palo Verde Mesa.2 Existing Transmission Facilities The proposed project site is located on the Palo Verde Mesa in Riverside County.7 miles north of the project site’s northern boundary. the TransCanada Gas Transmission Company (TCGT) Northern Baja Gas Pipeline runs parallel and east of the WAPA transmission line which also traverses the project site. In April of 2011.Palo Verde (DPV)-1 500 kV line. California. BrightSource changed the name of the project from Palo Verde Mesa to Rio Mesa to prevent confusion with a nearby nuclear facility. There were 21 generation projects in the SCE service territory modeled in QC3. Project Features Map. California on both lands owned by the Metropolitan Water District of Southern California (MWD) and federal land managed by the BLM. together with the five other projects in the Eastern Bulk System of QC3. which is located approximately 1.SECTIONTHREE Transmission System Engineering preliminary engineering for the Rio Mesa Solar Project Switchyard. The proposed plant site is located within approximately 8 miles of four existing electrical transmission lines. The following subsection discusses the existing transmission facilities in the vicinity of the proposed Rio Mesa SEGF and other potentially impacted transmission resources. Figure 2-2. steam turbine plant with a total rated output of 750 MW to the proposed Point of Interconnection (POI) at SCE’s Colorado River 220kV Substation located in Blythe. California. LLC. 2011 (Report) was completed in coordination with SCE per CAISO Tariff Appendix Y Generator Interconnection Procedures for Interconnection Requests in a Queue Cluster Window. Further studies (Phase II Study) will determine the final mitigation required for these projects including the share of the RMS Project. LLC shall be considered as a reference to Rio Mesa Solar Holdings. The WAPA and IID lines continue in a southerly direction to a point approximately a half mile north of the of the project northern boundary where the IID line turns southwest and no longer parallels the WAPA line. The Project is a full delivery. At this point the Buck–Julian Hinds 220 kV line turns northwest to parallel SCE 500 kV line on the north side of the 500 kV corridor.3. The CAISO Final Queue Cluster 3 Phase I Interconnection Study Report – Group Report in SCE’s Eastern Bulk System Final Report dated May 27. As shown in Section 2. Six QC3 projects were modeled in the Eastern Bulk System and the Report provides the study results for this Eastern Bulk System. 3-6 . contributes to various reliability and/or deliverability problems for which mitigation plans have been proposed. Imperial Irrigation District (IID) 161 kV transmission line and Western Area Power Administration (WAPA) 161 kV transmission line run parallel with each other until the lines are crossed by SCE’s Devers . 13 miles southwest of Blythe. Appendix A – Q#643AC of the Report addresses the Palo Verde Mesa Project (Queue Cluster 3 Phase 1 Final Report) is included in this AFC as Appendix 3A. the Buck-Julian Hinds 220 kV transmission line. The QC3 study has determined that the Project. References to Palo Verde Mesa. LLC submitted a completed IR to the CAISO for their proposed Palo Verde Mesa Project. 3. The WAPA 161kV line traverses through the eastern portion of the site.
8 kV/6. The Rio Mesa Switchyard and all associated equipment will be designed for the maximum short-circuit and load-flow design conditions of the installation. SCE has developed a service plan for the CRS to interconnect additional projects and allow for future growth. SCE’s service plan will include the following: the new CRS and other system upgrades to interconnect and deliver electrical power from Rio Mesa SEGF and other interconnecting customers in the region.9 kV Unit Auxiliary Transformer (UAT). Rio Mesa I. The lines will exit each plant substation and will follow the outside of the power block and continue along the access roads to the Rio Mesa Switchyard. Each of the generators will be connected to the low voltage side of the GSU transformer via a generator breaker.Tables.3. to minimize lightening and switching surges. nominal. 3. and at the high voltage terminal of the GSU transformers. The design of the CRS and associated upgrades will be performed by SCE. The lines will be designed for underground installation using cross linked polyethylene (XLPE) insulation. Startup and standby power will be supplied through the GSU and unit auxiliary transformers. II and III will be interconnected to the SCE grid through the new CRS which will be interconnected to SCE’s Devers-Palo Verde (DPV1) 500-kV line passing approximately 2 to5 miles north of the CRS site on an east-west ROW. Each line will be designed to carry the maximum output of each plant. Auxiliary controls for the 220 kV motor operated disconnect switch of the GSUS will be located in the common area administration/control building located separate from the power plants.7. A tap between the generator breaker and low voltage terminals of the GSU transformer will serve the plant auxiliary loads via a 21 kV to 13.3 Proposed Transmission Interconnection Facilities SCE recently received approval to construct the Colorado River Substation (CRS) which will be located just south of the SCE 500 kV route.3. Power from each plant will be interconnected to the CAISO grid via a common 220 kV gen-tie line to the CRS. These shared facilities will be jointly owned by all three project companies in an equal percentage. The Rio Mesa SEGF single line diagram is included in Section 2 as Figure 2. and from the switchyard to the CRS. The lines will be installed underground the entire route from each plant’s substation to the Rio Mesa Switchyard. 3-7 . Each plant UAT will be adequately sized to provide power to all auxiliary loads within each facility. Figures and Appendices 3. Surge arresters will be used at the underground cable terminators. as well as to support future growth. well before the Rio Mesa SEGF is expected to come online. This diagram shows the high voltage electrical interconnection between the three generators and the Rio Mesa switchyard.1 Generator Step-up Substation and Tie-Line Characteristics Each of the three plants will include a 220 kV Generator Step-up Substation (GSUS) which consists of one 220 kV motor operated disconnect switch adjacent to the 220 kV terminals of the Generator Step-up Unit (GSU) transformer. The Project will include a common area switchyard (Rio Mesa Switchyard) on site where all three project generator underground tie lines will terminate. The CRS construction is projected to be completed in 2013 or 2014.3. The proposed tie lines from the three GSUS’s to the Rio Mesa Switchyard will be engineered for operation at 220 kV.
The safety clearance required around the conductors is determined by normal operating voltages.2 Rio Mesa Switchyard The design of the Rio Mesa Switchyard will be performed by the EPC based on the plant generation and interconnection requirements. 3.1 Electrical Clearances Typical high-voltage overhead transmission lines are composed of bare conductors connected to supporting structures by means of porcelain. The Phase 1 Interconnection Study Report analyzed the project with the installation of two dedicated 220 kV double breaker positions to terminate the Project’s two 220 kV lines. Final design will be based on actual field conditions and site requirements. The switchyard will be configured in a ring bus arrangement with five 220 kV breakers and five line positions.4 Colorado River Substation The design of the CRS will be performed by SCE and analyzed conceptually from input provided based on the requirements of Rio Mesa SEGF and other generation projects in the queue. The five line positions include the three 220 kV lines coming from the three Project GSUSs to the switchyard and the two outgoing lines (double circuit overhead line) going from the switchyard to the CRS. A control enclosure will be provided to house the relay panels. nominal. or plastic insulators. short-term abnormal voltages. Figure 3.3. 3.3 Gen-Tie Line Characteristics The proposed overhead double circuit gen-tie line from the Rio Mesa Switchyard to SCE’s CRS will be engineered for operation at 220 kV.3.4 TRANSMISSION SYSTEM SAFETY AND NUISANCES This section discusses safety and nuisance issues associated with the proposed electrical interconnection of the Rio Mesa SEGF with the CAISO electrical grid. as well as future load growth requirements. communication equipment. The switchyard will be fenced and surfaced with crushed stone. or air space.3. batteries. 3. 3. The air surrounding the energized conductor acts as the insulating medium.3-1 shows an illustration of the proposed configuration for the Rio Mesa Switchyard (all figures are included at the end of this section).3-2 illustrates the conceptual design of a typical double-circuit structure.SECTIONTHREE Transmission System Engineering 3. Maintaining sufficient clearances.3. SCE is also considering a single breaker interconnection to the CRS from the Rio Mesa SEGF. Minimum clearances are specified in 3-8 . chargers and low voltage AC station service equipment. However. These pole designs were engineered to provide conceptual design limits for purposes of the EMF studies. porcelain or polymer insulators. wind-blown swinging conductors.4. contamination of the insulators. engineered for safe and reliable operation. The lines will be insulated from the poles using glass. clearances for workers. around the conductors to protect the public and utility workers is paramount to safe operation of the line. and clearances for public safety. The double circuit line will be supported by single-pole structures at appropriate intervals with final heights as determined during final design. Figure 3.3. conductor temperatures. glass.3.
based on the road-crossing minimum. audible noise.. and thus.2 Electrical Effects The electrical effects of high-voltage transmission lines fall into two broad categories: EMF effects and corona effects. clearances are specified for: distance between the energized conductors themselves. commonly referred to as EMF. which 3-9 . and the condition of the conductor and hardware. meaning that the intensity and orientation of the field changes 60 times per second.Tables.4.3-2 and 3. and local ordinances may specify additional (more restrictive) clearances. distance between the energized conductors and the supporting structure. Under normal conditions.1 EMF Effects Operating power lines. 3. EMF effects are the voltages and currents that may be induced in nearby conducting objects. distance between the energized conductors and other power or communication wires on the same supporting structure. the generalized dimensions provided in Figures 3. This is the design clearance for the maximum operating temperature of the line. distance from the energized conductors to the ground and features such as roadways. Electric utilities. The final design value will be consistent with GO-95. Other common frequencies are AM radio.4-5 should be regarded only as reference for the EMF calculations. distance from the energized conductors to buildings and signs. Typically. like the energized components of electrical motors. state regulators. navigable waterways. and all other electrical appliances.4. Corona may result in radio and television reception interference. The electrical effects calculations were based on 220 kV line clearances per SCE’s “EMF Design Guidelines for Electrical Facilities” (EMF Research and Education.4-1 through 3.2. the average clearance is much greater than the minimum. and production of ozone. or between other power or communication wires above or below the conductors. The EMF produced by the alternating current electrical power system in the United States has a frequency of 60 Hz. airports. state. The proposed Rio Mesa SEGF transmission interconnection will be designed to meet all national. lighting. Corona is the ionization of the air that occurs at the surface of the energized conductor and suspension hardware due to very high electric field gradients at the surface of the hardware during certain conditions.95) is 30 feet. The minimum ground clearance for a 220 kV transmission line per California Public Utilities Commission (CPUC) General Order 95 (GO. 3. and local code clearance requirements. 2004). The transmission line’s 60 hertz (Hz) cycle for alternating current can cause these EMF effects. railroads. the line operates well below maximum conductor temperature. parking lots. driveways. Corona is a function of the voltage of the line. the diameter of the conductor (or bundle of conductors). home wiring. etc. and/or distance from the energized conductors to other parallel power lines. produce electric and magnetic fields. The 60 Hz power line fields are considered to be extremely low frequency. Figures and Appendices the National Electrical Safety Code (NESC). light. Since the designer must take into consideration many different situations.
the magnetic field strength declines as one moves away from the conductor.4 GHz. like the electric field. The electric field gradient is greatest at the surface of the conductor.2. hence. In the absence of conclusive or evocative evidence. through the conductors. such as dust or insects. increased voltage produces a stronger electric field. California in particular. At the 60 Hz frequency associated with electric power transmission. 3. Higher frequency fields have shorter wavelengths and greater energy in the field. television. snow. 890 megahertz (MHz). Electric field strength is directly proportional to the line’s voltage. that is. Corona typically becomes a design concern for transmission lines having voltages of 345 kV and above. The audible noise level can increase during foul weather conditions. cellular telephones. The strength of the electric field is measured in units of kilovolts per meter (kV/m). fog. the magnetic field around a transmission line. fluctuate daily and seasonally as the usage of electricity varies. have enough energy to cause ionization (breaking of atomic or molecular bonds). Water drops may collect on the surface of the conductors and increase corona activity so that a crackling or humming sound may be heard near a transmission line. Large-diameter conductors have lower electric field gradients at the conductor surface and. High frequencies. Electric fields around transmission lines are produced by electrical charges on the energized conductor. some states. Considerable research has been conducted over the last 30 years on the possible biological effects and human health effects from EMF. these states mandate a program of prudent avoidance whereby EMF exposure to the public would be minimized by encouraging electric utilities to use low-cost techniques to reduce the levels of EMF. and X-rays. lower corona than smaller conductors. everything else being equal. increase corona at these spots. The 60 Hz fields do not radiate. thus.4. Magnetic fields are expressed in units of milligauss (mG). Irregularities (such as nicks and scrapes on the conductor surface) or sharp edges on suspension hardware concentrate the electric field at these locations and. Similarly. This research has produced many studies that offer no uniform conclusions about whether longterm exposure to EMF is harmful or not.100 miles and have very low energy that does not cause heating or ionization. Corona activity on the 220 kV transmission line can generate a small amount of sound energy. 900 MHz. the electric and magnetic fields have a wavelength of 3. Magnetic fields around transmission lines are produced by the level of current flow. measured in terms of amperes.600 kilohertz (kHz. Instead. The amperes and. Audible noise decreases with distance away from a transmission line. about 1 billion (1018) Hz. The magnetic field strength is also directly proportional to the current. microwave ovens. the diameter of the conductor. Raindrops. unlike radio-frequency fields. Corona also results in a small amount of power loss to the transmission line. 2.2 Corona Effects Corona is a function of the voltage of the line. have chosen not to specify maximum acceptable levels of EMF.SECTIONTHREE Transmission System Engineering operate up to 1. can cause irregularities that are a source for corona. increased amperes produce a stronger magnetic field. Microwave wavelengths are a few inches long and have enough energy to cause heating in conducting objects. The magnetic field is inversely proportional to the distance from the conductors. that is. contamination on the conductor surface. therefore. The electric field around a transmission line remains practically steady and is not affected by the common daily and seasonal fluctuations in usage of electricity by customers. and the condition of the conductor and suspension hardware. Thus. and condensation are also sources of irregularities. 3 gigahertz (GHz) and 4 GHz. 3-10 . The electric field gradient is the rate at which the electric field changes and is directly related to the line voltage. such as X-rays.
The human hearing system is non-linear and has a complex response. line loading.4-1. Only AM receivers located near transmission lines that are tuned to a weak station are typically affected by RI. Television interference (TVI) is the degradation of a television signal by television frequency electromagnetic disturbances and is reported as the field strength of the interference. TVI is now less of a concern since the recent national switch to digital television.5 kV) 375 MW per circuit (897 Amps) The following additional data was used for the analysis. With digital television. Figures and Appendices Audible noise is measured in decibels (dB) of sound pressure with respect to the threshold of human hearing (taken as 20 micropascals).3 EMF and Corona Effects Assumptions It is important that any discussion of EMF and corona effects include the assumptions used to calculate these values and to remember that EMF and corona effects in the vicinity of the power lines vary with regard to line design.4. The magnetic field is proportional to line loading (amperes). such as shadowing or snow. 3. which varies as power plant generation is changed by the system operators to meet increases or decreases in electrical demand.5 kV was used in the calculations for the 220 kV lines. Both the electric field and corona effects depend on line voltage. A worst-case voltage of 241. Digital television does not experience the typical TVI noise effects that analog television did. and other factors. and the signals are less susceptible to the noise due to their higher operating frequencies. there is either signal or no signal.4-1 Estimated Line Capacities for EMF and Corona Studies Line Voltage/Circuits Capacity Rio Mesa 220 kV double-circuit (241. However. which remains nearly constant for a transmission line during normal operation. The decibel is a dimensionless unit used to compare the level of some quantity to a reference level and it always needs a reference quantity to have meaning. The apparent loudness that attributed to sound varies not only with the pressure but also with the frequency (or pitch) of the sound. 3-11 . Line loading values assumed for the EMF and corona effects studies are presented in Table 3. Corona-generated radio interference (RI) is most likely to affect the amplitude modulation (AM) radio broadcast band (530 to 1. Corona-induced noise tends to be broadband and can sometimes have a pure tone (primarily at 120 Hz). An example is the humming noise on an AM radio that happens when the radio is near a power line but diminishes as the radio moves away from the line.700 kHz). Both RI and TVI are measured in dB of one microvolt per meter (μV/m) which is a logarithmic scale.Tables.2. Table 3. the values are reported since there may be a few local low-strength analog stations broadcasting in the area. frequency modulation (FM) radio is rarely affected. distance from the line. or for any remaining VHF digital channels on the fringe of their operating range.
The mid-span location provides the maximum value for the field. The ROW width is 100 feet with the structures located in the center of ROW resulting in 50 feet to the edge of right-of-way from the center of the structures. conductor type and spacing.0) feet (1. 3. The phasing of the circuits (top-to-bottom) are BCA on the left and ACB on the right side of the structure. The shield wires are Optical Ground Wire (OPGW) and were assumed to have a core of 48 optical fiber count (resulting in an outer diameter of 0. Measurements for electric and magnetic fields at one meter above the ground surface are in accordance with the Institute of Electrical and Electronic Engineers (IEEE) standards. A) provided for reference. Should a different configuration be used. The data and assumptions used for the EMF and corona effects studies are discussed in the following paragraphs and illustrated in Figures 3. The minimum conductor height was 30 feet for the lowest conductor. the results may vary significantly.5 feet was assumed for the 220 kV lines.4 EMF and Corona Effects Calculations EMFs were calculated using the Bonneville Power Administration’s (BPA) Corona and Field Effects Program (CAFEP) software to model the tangent double circuit transmission line configurations.72 inches). The study calculations are based on the preliminary conceptual design of the interconnection facilities. as TVI is negligible during fair weather. The conductor spacing was assumed to be as labeled on the structure drawing (L0-2 Rev. and other specifics. Audible noise is expressed in a-weighted decibels (dBA).2. A sag value of 34.3-2. Also using the CAFEP mathematical model. Values are calculated at a height of 32.. RI is reported at either edge of the ROW and measured at a height of six (6. The field level is calculated directly under and perpendicular to the line. at mid-span where the overhead line sags closest to the ground (calculation point). The various inputs for the calculations include voltage.000 feet. The elevation of the corridor is less than 1. The cross section of the pole used to calculate the EMF and corona effects is illustrated in Figure 3. current load (amps). spatial coordinates of the conductors and shield wires. These wires provide lightning protection as well as provide a communication link between interconnected points. audible noise is calculated at 5-foot microphone height above flat terrain with information concerning rain.4-1 through 3.4-5. CAFEP calculates the electric fields expressed as kV/m and the magnetic fields expressed in mG. subconductor bundle symmetry.8 3-12 .83 m) above ground.e. A single 1590 kcmil ACSR 45/7 “Lapwing” conductor was used for the 220 kV lines in the analysis. various labeling parameters.4. The values for TVI are reported for wet conductor conditions. number of subconductors. and fog rates for daytime and nighttime hours as input. phasing). current angle (i.SECTIONTHREE Transmission System Engineering Only the Rio Mesa 220 kV double circuit line was considered for the EMF and audible noise analysis. The values for RI are reported for fair weather conditions as rainy weather disturbs the signal more than the corona effects.
and elevation of the cables determine the electric field. Figures 3. Calculations were performed at a reference frequency of 1 MHz (near the middle of the AM band). The RI produced by the 220 kV line during fair weather conditions is shown in Table 3.4-2 Calculated Electric Field Levels from the Rio Mesa Gen-Tie Line Electric Field Strength (kV/m) Distance From Centerline (feet) Rio Mesa -90 -72 -54 -36 -18 Centerline 18 36 54 72 90 0.3-6 were produced by importing CAFEP data into Microsoft Excel. 3-13 .2-2.212 kV/m at 18 feet from the center line as shown in Figure 3.4-1.107 2. The maximum electric field for the Project is 2.4.028 The corona-produced RI may affect AM radio reception but not FM radio reception. Table 3.5 Results of EMF and Corona Effects Calculations Electric Field and Corona Effects Line voltage. the AM signals are more distorted by the atmospheric conditions than any corona sources.Tables. While RI is greater in rainy weather.3-2 to 3.212 1. Both RI and TVI use the average conductor height to approximate the average values along the entire line.384 1.384 0. The results of the electric field for the 220 kV lines are shown in Table 3.236 0.236 2.4-3 and Figure 3.028 0. results are presented in fair weather conditions (consistent with typical industry practice).075 0.2.4-2. Figures and Appendices feet (10 m) above the ground per IEEE Standard 430-1986 and FCC measurement guidelines. arrangement of the phases. 3.075 0. Therefore.212 1.
4 42.4-4 and in Figure 3.8 31.6 33. The calculated RI and TVI Interference levels from the 230 kV gen-tie line are expected to cause less than significant effects on existing radio and television broadcast signals in their respective primary coverage areas.8 feet) above the ground and at the edge of the ROW per FCC guidelines. Television interference is not expected to be a concern due to digital television signals being less susceptible to interference than analog signals.5 33.7 36.7 43.4-3 Calculated Radio Interference Levels Produced During Fair Weather Conditions from the Rio Mesa Gen-Tie Line Radio Interference (L50 Rain dBuV/m) Distance From Centerline (feet) Rio Mesa -90 -72 -54 -36 -18 Centerline 18 36 54 72 90 31. During fair weather conditions TVI effects are generally negligible so effects during rainy weather are calculated and reported.6 40. 3-14 .8 36.5 The corona-produced TVI is calculated using the average conductor height with the results reported at a height of ten meters (32.SECTIONTHREE Transmission System Engineering Table 3.4-3. The TVI produced by the 220 kV line during rainy weather conditions is shown in Table 3.4 40.2 43.
5 In fair weather.5 44.7 28.9 41.9 16.4-4 Calculated Television Interference Levels Produced During Rainy Weather Conditions from the Rio Mesa Gen-Tie Line Television Interference (Rain dBuV/m) Distance From Centerline (feet) Rio Mesa -90 -72 -54 -36 -18 Centerline 18 36 54 72 90 10. the noise level will be higher but will be masked by the sound of the falling raindrops as well as ambient noise.0 20.8 41.7 16.9 10.5 12. The audible noise produced for the 220 kV lines during rainy weather as measured 5 feet above ground is shown in Table 3. the audible noise will not be observable by a person standing at ground level.1 41. Table 3.6 44.9 28.3 44.4-4.4-5 Calculated Audible Noise Levels Produced During Rainy Weather Conditions from the Rio Mesa Gen-Tie Line Audible Noise (L50 Rain dBA) Distance From Centerline (feet) Rio Mesa -90 -72 -54 -36 -18 Centerline 18 36 54 72 90 41.6 42.3 43.Tables.0 12.8 43. During rain.1 3-15 .9 42.6 23.6 20. Figures and Appendices Table 3.4-5 and in Figure 3.
4.4-5.1 mG at the center line as shown in Figure 3.6 16. the interconnections of the Project will be designed and constructed using the principles outlined in the SCE publication.4-6 summarizes calculated values for the magnetic field at various distances from the center line.5 98. Increase the pole height for overhead design 3-16 . and ROWs are designed and routed according to the SCE guidelines. the CPUC.1 29.1 9. 2004).1 55. The CEC. when the transmission line structures. The maximum magnetic field for Rio Mesa is 120. In keeping with the goal of EMF reduction. The magnetic fields of the 220 kV lines are shown in Figure 3. 128.SECTIONTHREE Transmission System Engineering Magnetic Field Line current and arrangement of the phases determine the magnetic field. conductors. As a result of this mandate.0 16. the regulated electric utilities have developed their own design guidelines to reduce EMF at each new facility. the transmission line is consistent with the CPUC mandate. which regulates electric transmission lines.1 120. which regulates transmission lines to the first point of connection. Table 3.4-5. Table 3. The primary techniques for reducing EMF anywhere along a transmission line are to: 1.1 98.5 29. mandates EMF reduction as a practicable design criterion for new and upgraded electrical facilities. requires generators to follow the existing guidelines that are in use by local electric utilities or transmission-system owners.6 Transmission Line EMF Reduction While the State of California does not set a statutory limit for electric and magnetic field levels. These guidelines explicitly incorporate the directives of the CPUC by developing design procedures compliant with Decision 93-11-013 and General Orders 95. That is.2. and 131-D.6 3. “EMF Design Guidelines for Electrical Facilities” (EMF Research and Education.0 55.4-6 Calculated Magnetic Field Levels from the Rio Mesa Gen-Tie Line Calculated Magnetic Field Level (mG) Distance From Centerline (feet) Rio Mesa -90 -72 -54 -36 -18 Centerline 18 36 54 72 90 9.
for the 120-pound woman. secondary. a perceptible current or shock may occur as the current flows to ground. this requires a long metallic object. Magnetic fields can also induce voltages and currents in conducting objects. Additional measurements will be made upon request for locations of particular concern. hazardous shocks are unlikely to occur as a result of project construction or operation. and the object-to-ground resistance.Tables.4. Minimize the current on the line 4. 3. C) Anticipated EMF levels have been calculated for the Rio Mesa interconnections as designed. The mitigation for hazardous and nuisance shocks is to ensure that metallic objects on or near the ROW are grounded and that sufficient clearances are provided at roadways and parking lots to keep electric fields at these locations sufficiently low to prevent vehicle short-circuit currents from exceeding 5 mA. and for children. The mean perception level is 1. Their lower level is described as the current at which 99. Use compact pole-head configuration 3.0 mA for a 180-pound man and 0. For the 180-pound man this is 9 mA. 5 mA.2.63 mA for a large trailer truck.5 percent of subjects can still voluntarily “let go” of the shocking electrode. Shocks are classified as below perception. and equipment near transmission lines. Typically.016 milliampere (mA) for a person.41 mA for a large school bus. Optimize the configuration of the phases (A. The lower average secondary-shock level for an average-sized man is about 2 mA.4. Mitigation for this problem is to ensure multiple grounds on fences or pipelines. 3. trucks. 6 mA. The effect of the added EMF and corona effects would be well below the levels produced by the existing SCE 500 kV line.3 Induced Current and Voltages A conducting object such as a vehicle or person in an electric field will have induced voltages and currents. and primary. especially those that are oriented parallel to the transmission line. Secondary shocks cause no direct physiological harm.and post-interconnections verification measurements will be made consistent with IEEE guidelines and will provide sample readings of EMF at the edge of ROW. Primary shocks can be harmful. The NESC specifies 5 mA as the maximum allowable shortcircuit current to ground from vehicles. Examples of measured induced currents in a 1 kV/m electric field are about 0. Figures and Appendices 2. about 0. and about 0. the size and shape of the conducting object. The strength of the induced current will depend on the electric field strength. above perception.7 EMF and Corona Effects Conclusions The public exposure to EMF and corona effects levels due to the proposed interconnection of Rio Mesa SEGF are within typical industry accepted levels. A person who closes an electrical loop by grounding the object at a different location will experience a shock similar to that described above for an ungrounded object. 3-17 . notwithstanding the fact that there will be very little public exposure at the site. Therefore. When a conducting object is isolated from the ground and a grounded person touches the object. If required. but may annoy a person and cause involuntary muscle contraction. B. The proposed 220 kV transmission interconnection will be constructed in conformance with GO-95 and Title 8 California Code of Regulations § 2700 (8 CCR § 2700) requirements.7 mA for a 120-pound woman. such as a wire fence or aboveground pipeline that is grounded at only one location. the pre.
Accordingly.SECTIONTHREE 3.200 feet.7 miles from Blythe Municipal Airport.000 feet (3.4.000 feet from the end of the nearest runway. A fire pump controller will be provided for each fire pump. a distance of approximately 25.3 nautical miles) from the runway with no obstruction greater than a 100:1 ratio of the distance from the runway. and maintained in accordance with CPUC’s GO-95. Part 77. a back-up diesel engine-driven fire pump will be provided to pressurize the fire loop if the power supply to the electric-motor-driven main fire pump fails. The project is located approximately 4. the restricted space extends 20.7 nautical miles) with a 50:1 ratio of the distance from the runway.000 feet (0. According to the FAA horizontal distance equation for a runway greater than 3. Part 77 establishes standards for determining obstructions in navigable airspace in the vicinity of airports that are available for public use and are listed in the Airport Directory of the current Airman’s Information Manual. FAA notification is required for any potential obstruction structure erected over 200 feet in height above ground level. For airports with runways measuring 3.6.200 feet.000 feet of the proposed project site.4.4 Transmission System Engineering Aviation Safety Federal Aviation Administration (FAA) Regulations.800 and 6. As specified by FAA Regulations. the restricted space extends 5. These regulations set forth requirements for notification of proposed obstruction that extend above the earth’s surface. which has two runways 5.000 feet.000 feet (1. For airports with runways longer than 3. notification is required if the obstruction is greater than specified heights and falls within any restricted airspace in the approach to airports. For additional information on FAA Regulations see Section 5. Title 14 of the Code of Federal Regulations (CFR).000 feet will allow a structure of up to 125 feet. 3-18 . there are no airports (public or private) within 20. Title 14 of the CFR. Also. the restricted space extends 10.543 feet in length.8 nautical miles) with a 25:1 ratio. has been surveyed to ensure neither manmade nor natural structures are located in the vicinity of the proposed facilities that would contribute to a fire hazard. A typical 220 kV transmission structure for this project will range from 85 to 120 feet in height. The primary source of fire protection water will be the service/firewater storage tank(s). on the Palo Verde Mesa in Riverside County.200 feet or less.5 Fire Hazards The proposed 220 kV gen-tie line built along the alignments to the CRS will be designed. The fire protection system will be designed to protect personnel and limit property loss and plant downtime in the event of a fire. In addition. The proposed construction site. An electric jockey pump and electric-motor-driven main fire pump will be provided to increase the water pressure in the plant fire main to the level required to serve all firefighting systems. For heliports. 3. Land Use.000 feet and no heliports within 5. The proposed gen-tie line structures will be located approximately 25. a 100 to 1 imaginary slope extending from the nearest point of a runway nearest to the site of the proposed structure is restricted to 20. GO-95 establishes clearances from other man-made and natural structures as well as tree-trimming requirements to mitigate fire hazards. constructed.
Section 5. Table 3. and/or enforce the above referenced LORS. CA 91770 Transmission Interconnection Gordon Brown. includes additional information for fire and explosion risk.5-1 lists the agencies involved in transmission system engineering for the Project and a contact person at each agency. warehouse and maintenance building and fire pump enclosure as required by NFPA and local code requirements.5 INVOLVED AGENCIES AND AGENCY CONTACTS Table 3. the jockey pump will maintain pressure in the firewater loop.5-1 Agency Contacts Agency Issue Contact California Independent System Operator P.10. Contracts Manager (626) 302-7343 3.6-1 identifies Federal. conduct inspections. Hazardous Materials Handling. CA 95763-9014 Transmission Interconnection Linda Wright.6-1 Jurisdictional Agencies for Transmission System Engineering-Related LORS Agency or Jurisdiction Responsibility California Energy Commission (CEC) Jurisdiction over new transmission lines associated with thermal power plants that are 50 MW or more. Box 639014 Folsom.O. control. Table 3. Figures and Appendices The fire pump will discharge to a dedicated underground firewater loop piping system. provides information on local fire protection capability.Tables. State.6 PERMITS REQUIRED AND PERMIT SCHEDULE Table 3. (PRC 25107) CEC Jurisdiction over modifications of existing facilities that increase peak operating voltage or peak kilowatt capacity 25 percent. Socioeconomics. and Section 5. and local agencies with jurisdiction to issue permits or approvals. Project Specialist (916) 351-4470 Southern California Edison 2244 Walnut Grove Avenue Rosemead.6-1 also identifies the associated responsibilities of these agencies as they relate to the construction and operation of Rio Mesa SEGF. Table 3. Both the fire hydrants and the fixed suppression systems will be supplied from the firewater loop. (PRC 25123) 3-19 . Sprinkler systems will also be installed in the combined administration. (Public Resources Code [PRC] 25500) CEC Jurisdiction of lines out of a thermal power plant to the first point of interconnection the utility grid. 3. Handheld fire extinguishers of the appropriate size and rating will be located in accordance with NFPA 10 throughout the facility. Normally. Fixed fire suppression systems will be installed at determined fire risk areas such as the transformers and turbine lube oil equipment.5. Any required permits will be obtained during the course of the CEQA and NEPA licensing processes.
70/7460-1G) California Independent System Operator (CAISO) Provides Final Interconnection Approval Bureau of Land Management (BLM) Establishes and enforces zoning regulations for specific land uses. (NFPA 70) Issues and enforces certain ordinances and regulations concerning fire prevention and electrical inspection BLM CAISO CEC CPUC FAA GO PRC = = = = = = = Bureau of Land Management California Independent System Operator California Energy Commission California Public Utilities Commission Federal Aviation Administration General Order Public Resources Code 3-20 . CEC Jurisdiction over safety inspection of electrical installations that connect to the supply of electricity.6-1 Jurisdictional Agencies for Transmission System Engineering-Related LORS Agency or Jurisdiction Responsibility California Public Utilities Commission (CPUC) Regulates construction and operation of overhead transmission lines. 95 and 131-D) CPUC Regulates construction and operation of power and communications lines for the prevention of inductive interference.SECTIONTHREE Transmission System Engineering Table 3. (General Order [GO] No. 70/7460-1G) Establishes regulations for marking and lighting of obstructions in navigable airspace. Issues variances in accordance with zoning ordinances. (GO No. (AC No. 52) Federal Aviation Administration (FAA) (AC No.
1989. Corona and Field Effects of AC Overhead Transmission Lines. Power flow cases used for the LGIP “Interconnection Feasibility Study” provided by CAISO SCE Federal Energy Regulatory Commission (FERC) Form 715 U. Rules for Overhead Electric Line Construction. Figures and Appendices 3. 345-kV and Above. California. General Order 131D. 1985. A Review. 1975. June.7 REFERENCES Appendix A – Q#643AC. Portland. Transmission Line Reference Book. Queue Cluster 3 Phase 1 Final Report. National Electrical Safety Code. 2004. General Order 52. United States of America. Rules for Construction of Underground Electric Supply and Communications Systems. California Public Service Commission. LLC. Decision 93-11-013. EMF Research and Education.S. California Independent System Operator Final Queue Cluster 3 Phase 1 Interconnection Study Report – Group Report in SCE’s Eastern Bulk System Final Report. Line. Electrical and Biological Effects of Transmission Lines. Department of Energy. Irwindale. General Order 128. California Public Service Commission. California. 15CFR77-Objects Affecting Navigable Airspace. 115-138-kV Compact Line Design. Information for Decision Makers. 1978. California. Oregon.Tables. July. Electric Power Research Institute. Southern California Edison Company. ANSI C2. Transmission Line Reference Book. Bonneville Power Administration. United States of America. EMF Design Guidelines for Electrical Facilities. and Substation Facilities. Electric Power Research Institute. Palo Alto. Palo Alto.Palo Verde Mesa. Construction and Operation of Power and Communication Lines. Rules for Planning and Construction of Electric Generation. IEEE Power Engineering Society. General Order 95. California Public Service Commission. California Public Service Commission. California Public Service Commission. 3-21 . 14CFR1250-1258-Fire Prevention Standards for Electric Utilities.
Incidental Radiation.SECTIONTHREE Transmission System Engineering United States of America.25-Operating Requirements. 47CFR15. 3-22 .
Section 3.Project: Docket: 1 Pages 3-2 through 3-5.4. leases.4. regional. and a discussion of the applicability of. Page 3-6. indirect and cumulative impacts due to the construction. The locations and a description of the existing switchyards and overhead and underground transmission lines that would be affected by the proposed project. Section 3.3. Also provide an estimate of the radio and television interference that could result from the project. . regulations. the expected direct.. and all measures taken to reduce electric and magnetic field levels. Specific measures proposed to mitigate identified impacts. The table or matrix shall explicitly reference pages in the application wherein conformance. and any monitoring plans proposed to verify the effectiveness of the mitigation.2.2 See all subsections of Section 5 of this AFC.6 and 3. An estimate of the existing electric and magnetic fields from the facilities listed in (A) above and the future electric and magnetic fields that would be created by the proposed project. calculated at the property boundary of the site and at the edge of the rights of way for any transmission line. adopted local. and federal land use plans.2.7 Pages 3-9 through 3-17. standards.2. including a description of measures proposed to eliminate or reduce radio and television interference. and INFORMATION California Energy Commission – EFSD Rev 3/07 Appendix B (i) (1) (A) Appendix B (g) (18) (C) Appendix B (g) (18) (B) Appendix B (g) (18) (A) Appendix B (g) (1) SITING REGULATIONS Trans Line Safety & Nuisance Technical Area: Project Manager: Inadequate Adequate Adequacy Issue: 0 Date Data Adequacy Worksheets INFORMATION REQUIRED TO M AKE AFC CONFORM WITH REGULATIONS Technical Staff: Technical Senior: Revision No. and permits applicable to the proposed project.2 Pages 3-16 and 3-17. Tables which identify laws. state. ordinances.provide a discussion of the existing site conditions. the effectiveness of the proposed measures. and conformance with each. with each law or standard during both construction and operation of the facility is discussed.. the measures proposed to mitigate adverse environmental impacts of the project. Section 3. Sections 3. operation and maintenance of the project. AFC PAGE NUMBER AND SECTION NUMBER ADEQUATE YES OR NO DATA ADEQUACY WORKSHEET .4.
Section 3. INFORMATION California Energy Commission – EFSD Rev 3/07 Appendix B (i) (3) Appendix B (i) (2) Appendix B (i) (1) (B) SITING REGULATIONS Trans Line Safety & Nuisance Technical Area: Project Manager: Inadequate Adequate Adequacy Issue: 0 Date Data Adequacy Worksheets INFORMATION REQUIRED TO M AKE AFC CONFORM WITH REGULATIONS Technical Staff: Technical Senior: Revision No. and email address (if known). .6 Page 3-19. and agencies which would have permit approval or enforcement authority.Project: Docket: 2 Page 3-19. and approvals or to enforce identified laws. of an official who was contacted within each agency. state and federal land use plans. leases. title. Section 3. but for the exclusive authority of the commission to certify sites and related facilities. The name. regional. regulations.6 AFC PAGE NUMBER AND SECTION NUMBER ADEQUATE YES OR NO DATA ADEQUACY WORKSHEET Tables which identify each agency with jurisdiction to issue applicable permits. address (required). and adopted local. A schedule indicating when permits outside the authority of the commission will be obtained and the steps the applicant has taken or plans to take to obtain such permits. and also provide the name of the official who will serve as a contact person for Commission staff. standards. Section 3. phone number.5 Pages 3-19 and 3-20.
and operation of any electric transmission facilities.3-2 Pages 3-5 through 3-8.3 and Figures 3. and the capacity and voltage levels of the proposed lines. A detailed description of the design. Such description shall include the width of rights of way and the physical and electrical characteristics of electrical transmission facilities such as towers. Section 3. Section 3. construction. Section 3. On-Site Alternatives. along with the basis for selection of the capacity and voltage levels. and insulators. A discussion of the extent to which the proposed electric transmission facilities have been designed. resource conveyance constraints. conductors. . This description shall include power load flow diagrams which demonstrate conformance or nonconformance with utility reliability and planning criteria at the time the facility is expected to be placed in operation and five years thereafter. the basis for selecting principal points of junction with the existing electric transmission system.8. switchyards.3. INFORMATION California Energy Commission – EFSD Rev 3/07 Appendix B (b) (2) (D) Appendix B (b) (2) (C) Appendix B (h) (2) (B) Appendix B (h) (2) (A) SITING REGULATIONS Transmission System Design Technical Area: Project Manager: Inadequate Adequate Adequacy Issue: 0 Date Data Adequacy Worksheets INFORMATION REQUIRED TO M AKE AFC CONFORM WITH REGULATIONS Technical Staff: Technical Senior: Revision No. substations. as well as Section 2. and the consideration given to engineering constraints. Page 3-7 and 3. and routed to meet the transmission requirements created by additional generating facilities planned by the applicant or any other entity. Project Description and Section 6. or other equipment. which will be constructed or modified to transmit electrical power from the proposed power plant to the load centers to be served by the facility. planned. or other transmission equipment. Section 3. and A description of how the route and additional transmission facilities were selected.3.3. and electric transmission constraints. environmental impacts.3.3-1 and 3. substations. such as power lines.Project: Docket: 3 Page 3-7.3 AFC PAGE NUMBER AND SECTION NUMBER ADEQUATE YES OR NO DATA ADEQUACY WORKSHEET A discussion of the need for the additional electric transmission lines.3 and all Figures Page 3-7.3.
state and federal land use plans. When not connecting to the California Independent System Operator controlled grid. CAISO Queue Cluster 3 Phase 1 Final Report AFC PAGE NUMBER AND SECTION NUMBER ADEQUATE YES OR NO DATA ADEQUACY WORKSHEET A completed System Impact Study or signed System Impact Study Agreement with the California Independent System Operator and proof of payment.6 Pages 3-2 through 3-5. and Tables which identify each agency with jurisdiction to issue applicable permits. regional. but for the exclusive authority of the commission to certify sites and related facilities.Project: Docket: If the interconnection and operation of the proposed project will likely impact an transmission system that is not controlled by the interconnecting utility (or California Independent System Operator). standards. leases. adopted local. Section 3.2 Appendix 3A. standards. 4 Pages 3-19 through 3-20. and conformance with each. and approvals or to enforce identified laws. and adopted local. and agencies which would have permit approval or enforcement authority. regulations. ordinances. provide the executed System Impact Study agreement and proof of payment to the interconnecting utility. and federal land use plans. regional. The table or matrix shall explicitly reference pages in the application wherein conformance. regulations. leases. Tables which identify laws. INFORMATION California Energy Commission – EFSD Rev 3/07 Appendix B (i) (1) (B) Appendix B (i) (1) (A) Appendix B (b) (2) (E) SITING REGULATIONS Transmission System Design Technical Area: Project Manager: Inadequate Adequate Adequacy Issue: 0 Date Data Adequacy Worksheets INFORMATION REQUIRED TO M AKE AFC CONFORM WITH REGULATIONS Technical Staff: Technical Senior: Revision No. provide evidence of a System Impact Study or agreement and proof of payment (when applicable) with/to the impacted transmission owner or provide evidence that there are no system impacts requiring mitigation. and a discussion of the applicability of. with each law or standard during both construction and operation of the facility is discussed. . Section 3. and permits applicable to the proposed project. state.
and also provide the name of the official who will serve as a contact person for Commission staff. . title.Project: Docket: 5 Page 3-19. phone number.6-1. address (required). of an official who was contacted within each agency.6 Table 3. A schedule indicating when permits outside the authority of the commission will be obtained and the steps the applicant has taken or plans to take to obtain such permits. Section 3. page 3-20 AFC PAGE NUMBER AND SECTION NUMBER ADEQUATE YES OR NO DATA ADEQUACY WORKSHEET The name. INFORMATION California Energy Commission – EFSD Rev 3/07 Appendix B (i) (3) Appendix B (i) (2) SITING REGULATIONS Transmission System Design Technical Area: Project Manager: Inadequate Adequate Adequacy Issue: 0 Date Data Adequacy Worksheets INFORMATION REQUIRED TO M AKE AFC CONFORM WITH REGULATIONS Technical Staff: Technical Senior: Revision No. and email address (if known).
FIG. NO: 3.3-1 .
FIG.4-1 . NO: 3.
FIG. NO: 3.4-2 .
NO: 3.4-3 .FIG.
FIG.4-4 . NO: 3.
4-5 . NO: 3.FIG.
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