Draft PWS - Power Studies FY26.pdf

FA805126Q4002

PERFORMANCE WORK STATEMENT

Power System Modeling and Analysis 23 March 2026

1 SCOPE

The Contractor shall provide comprehensive, non-personal Power System Modeling and Analysis services to ensure the reliability and safety of electrical distribution systems at the locations specified below. The Contractor shall not perform any inherently governmental functions, as defined in FAR 7.503. The Contractor shall furnish all labor, software, materials, tools, equipment, transportation, and supervision necessary to:

• Collect field data related to the electrical distribution system.

• Develop and/or update a comprehensive electrical model of each installation's power system.

Perform the following power system studies using the electrical model:

• Power Flow Analysis

• Cross Connect Capability Evaluation

• Short Circuit Study

• Single Point of Failure (SPOF) for All Generator Locations

• Protective Device Coordination Study

• Arc Flash Hazard Analysis

• Distribution System Reliability

Generate detailed analysis reports documenting the findings and recommendations for each study, including mitigation strategies for identified deficiencies. The executive summary shall include the deficiencies with the remedies. The executive summary shall also include a simplified one-line with cross-connect capabilities outlined and at each switch.

The services shall be performed at the following installations:

Group A: Group B: Group C:

MacDill AFB (Florida) Nellis AFB (Nevada) Moody (Georgia) Patrick SFB (Florida) Fairchild AFB (Washington) Clear SFS (Alaska) Cape Canaveral SFS(Florida) Holloman AFB (New Mexico) Aviano AB (Italy) Peterson SFB (Colorado) Gimhae AB(South Korea) Incirlik AB (Turkey) Suwon AB (South Korea) Misawa AB (Japan) Arnold AFB (Tennessee) Yokota AB (Japan) Moron AB (Spain) Cannon AFB (New Mexico)

The electrical distribution systems to be analyzed include, but are not limited to switching stations, substations, transmission/distribution/ service cables, primary distribution equipment, government-owned power generating stations, government-owned renewable power generation (e.g., wind, solar), and generators with automatic or manual transfer switches.

The Contractor shall conduct a comprehensive analysis of the base's electrical system, from the primary power distribution lines through all secondary circuits, terminating at the service entrance disconnect of each building. This analysis will include field assessments of all assets within the defined scope, except as explicitly excluded below.

Elements Included in Analysis:

The analysis shall specifically address the following:

• Medium-Voltage and Primary Distribution Equipment: Assess all medium-voltage and primary distribution equipment located though out the base and within the facilities.

• Secondary Low-Voltage Distribution Equipment: Include assessing all low-voltage and secondary distribution equipment located throughout the base and within the facilities to the main panel disconnect.

• Emergency and Backup Generators: Integrate emergency and backup generators into the system model. The Air Force Civil Engineer Center (AFCEC) will provide a database of these generators. The Contractor shall validate the accuracy of the database information through on-site inspections.

• Electric Motors: Analyze all electric motors rated at 50 horsepower (HP) or greater connected to any point within the defined distribution system.

Exclusions:

• Military Family Housing: The analysis excludes all portions of the distribution system owned and operated by Military Family Housing, unless otherwise specified in Attachment 1 - Base Specific Requirements.

The Contractor shall utilize existing government-provided teleconferencing platforms for all scheduled meetings to facilitate participation by off-site personnel. If existing platforms are unavailable, the Contractor shall provide a compatible alternative. The Contractor shall schedule meeting with the AFCEC SME Electrical Engineer every 2 months to discuss the project progress and status.

2 EXISTING DISTRIBUTION SYSTEMS

All information provided for each installation’s existing distribution system is based on previous distribution system studies, if available, and interviews with installation personnel. The base specific information included in Attachment 1 - Base Specific Requirements may not be fully up to date.

Refer to the attached documents for additional information.

3 PERFORMANCE REQUIREMENTS

All work shall be coordinated with Base Civil Engineering (BCE) personnel - Base Electrical, Base Planner, Base Programmer, Base Real Property, Base Power Pro, Base Electrical Shop, Base Installation POC and Base Project Manager. The Contractor shall coordinate all work with the BCE a minimum of 30 calendar days CONUS and 90 calendar days OCONUS in advance of any site visits. The scope for this study shall include the following work items to be performed for each installation.

Study consists of analyzing the existing electrical distribution system and determining proper modifications and extensions of the overhead and underground electrical distribution systems to improve safety, efficiency, maintainability, reliability, and to support present and projected electrical requirements. The project shall include the following general activities:

• Preliminary Data Gathering (refer to Section 3.1)

• Field Data Gathering (refer to Section 3.2)

• Build/Update Model (refer to Section 3.3)

• System Analysis (refer to Section 3.4)

• Draft Report (refer to Section 3.5)

• Follow-up Data Gathering (refer to Section 3.6)

• Final Report (refer to Section 3.7)

• Corrected Final Report (refer to Section 3.8)

• Equipment Labeling (refer to Section 3.9)

• Software and Training (refer to Section 3.10)

3.1 PRELIMINARY DATA GATHERING

The Contractor shall provide field verification and data collection of all information necessary to perform all components of the System Analysis, such as the following information.

• All equipment and protective devices located within each substation

• All equipment and protective devices located within each switching station

• All equipment and protective devices located within each generating station

• Nameplate data for all transformers

• Nameplate data for all switches

• Nameplate data for all sectionalizing cubicles

• Nameplate data for all facility service disconnects

• Nameplate data for all power generation equipment (both renewable and non-renewable) feeding directly into the primary distribution system and buildings.

• Nameplate data for all power generation equipment attached to the facility by either ATS or MTS

• Nameplate data for all ATS or MTS connecting power generation equipment to a facility

• Cables sizes and types

• All motor loads, including motor starting type, on the installation over 50HP

• Field verification of all overcurrent protective device (OCPD) information and settings

• Verify that the facility’s main electrical distribution panel has a surge protection device

• Verify that the facility’s electrical distribution panel room has a common ground

• Verify Lightning arresters are installed and if found place on one-line

• Verify Fault indicators and place on one-line if found on equipment.

• Coordinate any base dewatering efforts of manholes.

The Contractor shall be responsible for coordination of all permits and activities necessary to collect the required information such as outages, energized work permits, confined space entry, secure area entry, etc. The Contractor shall also be responsible for providing all equipment and tools needed to facilitate access to equipment and recording of information.

Upon contract award, the Contractor shall review the existing distribution map, existing one-line diagram, existing model, and the most recent study report (if they exist) and develop a list of information and documents that will be required to update the model and perform the system analysis. The information contained within the existing distribution map, existing one-line diagram, existing model, and the most recent study report (if they exist) shall not be assumed accurate and shall require field verification to ensure that erroneous information is not used in the analyses, refer to Section 3.2. Once the list of required information and documents has been created, the Contractor shall initiate contact with the BCE.

Through coordination with the BCE, the Contractor shall attempt to collect as much of the needed information and documents as possible prior to any site visits. The Contractor shall attempt to collect the most up-to-date versions of all available electrical system drawings, lists of projects under construction and planned, and power meter readings and historic load information prior to the start of field data gathering activities. The Contractor shall also collect all available information from the BCE regarding all distribution equipment modifications which have occurred since completion of the previous analysis (if a prior analysis has been completed).

The Contractor shall request copies of proposed/planned/existing projects, real property records list of facilities. All facilities list in the real property record must be included in the base evaluation, model, drawings, etc. Existing facilities upgrades and new facilities projects must be included in the base evaluation, model, drawings, and GIS data. The proposed/planned projects must be included in the base electrical model (5 Year Plan). For additional assistance contact AFCEC SME Electrical Engineer.

The Contractor shall request a detailed description the normal operating configuration of the existing distribution system. As part of this description the Contractor shall verify if the normal operating configuration is routinely varied do to normal base operations, seasonal changes, routine maintenance, or any other factor other than emergency maintenance.

The Contractor is responsible for gathering crucial information regarding the base's electrical infrastructure from the Base Civil Engineer (BCE) office.

1. Electrical System Inventory and Critical Infrastructure: Mission Owners with Base Civil Engineer support will identify their Critical Facilities that host Mission Essential Functions. They will list the function, associated facility number, and an unclass description of the function. Then they will state what the Maximum Tolerable Downtime (MTD) in minutes is for that essential function. BCE, with AFCEC/COSM analysis support, will compare the required MTD with actual electricity availability for that facility. Thenrecommend projects or plans that can be determined to mitigate any shortfalls in power availability.

Mission

Essential Function ID

Building Number

Maximum Tolerable

Downtime (In Minutes)

Mission Description

(Unclassified)

OSD Availability or Reliability

Standard

MEF-06 10344 32 Data Processing 99.9%

2. Planned Electrical Load Modifications: The Contractor shall solicit information regarding all planned construction projects or anticipated changes to the electrical load on the system scheduled to occur within the next five years. This data is typically documented in the base's 5-Year Plan. Prior to concluding on-site data collection (as detailed in Section 3.2), the Contractor is obligated to obtain an updated copy of this 5-Year Plan from the BCE. This requirement ensures the study's accuracy by incorporating any foreseeable modifications to the electrical system.

Contact with any utility companies supplying the installation shall also be initiated during the preliminary data gathering phase. At a minimum the Contractor shall obtain the utility’s available fault current information for each point of connection to the base owned distribution system, power outage history, and any unusual system design information (including nearby power factor correcting capacitors) and a one-line drawing of their substation(s). The Contractor shall also request all historic load information available from the utility companies. All enquiries to and from the utilities shall be made in English.

The Contractor shall coordinate with the BCE for a complete and updated list of any security/sensitive locations within the installation which would require special permission, special escorts, and/or restrictions to access. It may not be possible to resolve all items required to gain access to security/sensitive location within the installation during preliminary data gathering; if necessary, coordination of access to these locations shall resume during the first field data gathering site visit. The time needed to gain authorization to access security/sensitive locations varies by location and can take an appreciable amount of time in some instances. The Contractor shall exhaust all legal options working with the personnel at these security/sensitive locations. In some locations the Contractor will need additional time to gain authorized access per Attachment 1 - Base Specific Requirements. If access is still not permitted, the Contractor shall contact the Contracting Officer’s Representative (COR).

3.2 FIELD DATA GATHERING

Any information or documents in possession of the BCE which could not be obtained during preliminary data gathering shall be collected during the Contractor’s site visits. All information and documents received from the BCE shall be field verified by the Contractor to ensure that erroneous information is not used in the analyses. All errors discovered in the information and documentation provided by the BCE shall be reported to the BCE within one calendar day.

During the first day of the first field data gathering site visit, the Contractor shall coordinate and attend an on-site Coordination/Kick-Off meeting with the Base Project Manager and the Government points of contact (POCs) provided by AFCEC. The purpose of the meeting includes items such as scope/contract discussions, project tasks, project status, and the general exchange of information concerning past projects, current and future activities. The Base Project Manager shall furnish available information and discuss operating conditions and base personnel's specific concerns. The Contractor shall provide a meeting agenda to everyone indicated below to receive meeting minutes. The Contractor shall facilitate the meeting, record attendance, and record meeting minutes. The Contractor shall distribute meeting minutes to each installation, COMMAND, AFCEC, and the USACE POC by close of business the following business day. (CDRL A005)

Field data gathering shall include determination and verification of all existing conditions, including primary feeder runs, locations, manufacturer and types of equipment in the electrical system, transformer and large motor nameplate data, protective device characteristics, total connected KVA Transformers on each feeder, and other pertinent information necessary to verify and update existing documents and models to reflect actual conditions. The Contractor shall be responsible for collecting all information necessary for the completion of all components of the System Analysis, refer to Section 3.4. Furthermore, the Contractor, once gaining access inside equipment, shall complete all assessment and data collection before closing and proceeding to the next piece of equipment. Equipment information gathered during the site visit shall include items such as:

• All Equipment Manufacturer and Nameplate Information (manufactory name, manufactory date, model number, serial number) – include GIS mode

• Equipment IDs – include in GIS Model

• Type of Equipment – include GIS model

• Size of Equipment – include GIS model

• Equipment Voltage – include GIS model

• Current Transformer (CT) Ratios (A/FLA/FLC) – include GIS model

• Phase Signal for 3 Phase – include GIS model

• Power Rating (KW, KVA, HP (for motors) – include GIS model

• Standard Certification (UL, IEEE, ANSI, NEMA, IEC) ) – include GIS model

• Transformer Tap Settings – include GIS model

• Radial feed, feed through (how is connected primary and alternate paths)

• Equipment grounding and type of grounding – include GIS model

• Lightning Protection Type – include in GIS Model

• Reclosure Settings – include in GIS Model

• Relay/Breaker Settings – include in GIS Model

• Breaker Sizes – include in GIS Model

• Fuse Sizes – include in GIS Model

• Feeder Conductor Sizes – include in GIS Model

• Service Conductor Sizes – include in GIS Model

• Conductor Lengths – include in GIS Model

• Pole Numbers and Condition of at least 30 poles (randomly selected) – include in GIS Model

• Manhole/Handhole IDs – include in GIS Model

• Emergency Generator and size – include in GIS Model

• Global Positioning Systems (GPS) Coordinates

• General Condition of Equipment (Example: Green+, Green, Green-, Amber+, Amber, Amber-, Red+, Red, Red- on a 100-0 scale, Green+ is considered brand new installation while red- is required replacement within a year or inoperable)

• Measurement of enclosure for Arc Flash Calculations

• Short Circuit Current Ratings

• ATS and MTS ratings

• Generator control circuits and governor settings.

• Facility square footage and number of facility occupants.

Mapping Grade GPS or comparable traditional survey methods will be used to collect geospatial data (e.g., northing and easting) for all contract activities where geospatial data is involved.

Existing power meters can be used only when all information above can be directly readable and base electrical personnel can attest to the accuracy of the existing power meters

Base electrical personnel from each installation will be provided by the Government when required for escort during the fieldwork.

All Contractor personnel shall use normal base working hours of 0800 to 1700 Monday to Friday (or as indicated in Attachment 1 – Base Specific Requirements) and exclude any federal holidays unless coordinated in advance or waved by the BCE, or BCE representative. Base keys are not assumed to be checked out to the Contractor unless waved by Attachment 1 – Base Specific Requirements, BCE, or BCE representative.

To allow the BCE adequate time to ensure access to each facility, the Contractor shall provide the BCE with a list of facilities requiring entry a minimum of 20 working days prior to each site visit.

Advance notice more than 20 working days may be required to ensure access to some facilities, refer to Attachment 1 – Base Specific Requirements. The Contractor shall receive confirmation from the BCE prior to the site visit that access will be granted to each facility. If, for any reason, access cannot be granted to a facility during a site visit the Contractor shall coordinate with the BCE to schedule access to the facility at a later date.

As part of the monthly status report submitted prior to the final scheduled field data gathering site visit, the Contractor shall present general findings of the field surveys and discuss the impressions resulting from the initial phases of the engineering evaluations and system analyses. The Contractor shall discuss anticipated problems if portions of the tasks appear questionable or unsound because of the data gathering and initial evaluation efforts.

3.2.1 Inaccessible Equipment

If, during of the field data gathering site visit, access to a piece of equipment is found to be impeded, the Contractor shall immediately notify the BCE. Working together with the BCE, the Contractor shall make every attempt to gain access to the equipment, such as contacting appropriate individuals with keys, cutting locks (with the approval of the BCE), using bucket trucks, performing outages, applying for hot work permits, and entering confined spaces.

The Contractor shall be required to provide all tools and equipment necessary to facilitate access to distribution equipment. These items shall include power tools, hand tools, appropriate personal protective equipment (PPE), and bolt cutters. At least one (1) of these employees shall be trained and licensed to record the information indicated above. The Contractor shall be responsible for coordinating any necessary outages or obtaining any energized work permits required. The Contractor shall exhaust all legal options working with the personnel at security/sensitive locations to gain authorized access. If access is still not permitted the Contractor shall contact the COR.

A piece of equipment shall not be considered inaccessible due to being located within a locked room, within a padlocked enclosure, within a security/sensitive location, or in any other standard installation location or configuration. The Contractor shall have a telephoto camera, high powered binoculars, and flashlights for field inspection of equipment located on poles and within manholes.

If the Contractor is unable to access any piece of equipment, despite having taken all reasonable actions to gain access, approval shall be required from the COR to abandon attempts to access the equipment. The COR shall be notified immediately via email and telephone, if the Contractor is unable to access any piece of equipment. Upon notifying the COR of impeded access to a piece of equipment, the Contractor shall proceed with field data gathering activities for the remaining equipment until a response has been received from the COR. If, after two (2) working days, the COR has not provided the Contractor with a decision the Contractor may declare the equipment inaccessible. The Contractor shall document all attempts to obtain clarification from the COR regarding the accessibility of equipment. Any equipment which has been declared inaccessible shall be entered into the model using appropriate and clearly documented assumptions.

3.2.2 Acceptable Assumptions

Assumptions based on accepted industry practice and published standards shall be acceptable if they are clearly documented. (example: assuming transformer x/r ratio based on IEEE standards).

All assumptions for conductors or protective devices that are based on industry standard practice or published standards shall have documented BCE and electrical shop acceptance.

If it is not possible to field verify the information for bayonet fuses within an oil-filled transformer without physically removing the fuses, it shall be acceptable for the Contractor to use assumed values or values provided by the BCE for the fuse information. The Contractor shall coordinate with, and receive concurrence from, the BCE and the Base Electrical Shop when determining acceptable assumptions to use for bayonet fuse values. The Contractor shall document the full name, job title, email, and phone number of all individuals coordinated with to determine the acceptable assumptions for bayonet fuse values. This documentation shall be included in the monthly status report, refer to Section 3.2.7, immediately following the determination of the coordinated assumption. The documentation shall also be included in the CD’s or DVDs submitted concurrently with the reports, refer to Section 3.2.8.

The Contractor shall utilize all information available and exercise sound engineering judgment when making any assumptions. Assumptions must be kept to a minimum and shall only be used where a device is deemed inaccessible, refer to Section 3.2.3, or where field verification of the information would require an outage or energized work which is specifically disallowed by the BCE.

Justification for all assumptions shall be included within the report, refer to Section 3.5.1 for additional information. All assumptions made by the Contractor are subject to approval or rejection by the government during the report reviews. Any assumption rejected by the government shall be field verified at no additional cost to the government, or a new assumption made in coordination with the COR and BCE.

3.2.3 Notification Requirements

The Contractor is required to notify the Contracting Officer (CO), COR, and BCE of critical issues that may affect the contract performance and/or human health and the environment. The types of issues that require notification include health risks, spills, unexpected utility crossings, unusual weather conditions, unacceptable materials, and changes in critical personnel. On critical issues, verbal notification should be made immediately, followed by written notification as soon as practical.

3.2.4 Work Site Coordination

The Contractor shall coordinate with the COR and BCE to arrange access to all facilities. The Contractor shall comply with Occupational Safety and Health Administration (OSHA) safety and health regulations and local safety office requirements. The Contractor is required to provide the CO copies of any OSHA report(s) submitted during the duration of the contract.

3.2.5 Monthly Status Report (CDRL A003)

The Contractor shall provide a monthly status report which encompasses the efforts being performed at each installation which discusses the progress, a description of activities conducted since the previous monthly status report, schedule, and any issues. Any changes in the schedule shall be highlighted, and an accompanying justification shall be provided outlining the reasons for the change.

3.2.6 Dissemination of Collected Data (CDRL A007)

In addition to the information required to be included in the reports, all data collected shall be provided to the government on a separate CD(s) or DVD(s) as part of the Corrected Final Report, refer to Section 3.8. This shall include all documents, pictures, measurements, equipment data, GPS location data, etc. Data shall be stored in directories in an organized manner which allows subsequent users to readily locate and retrieve the information for any facility or equipment.

Collected data will become the property of the government.

The Contractor shall provide digital photographs of all field conditions influencing conclusions in the submittal for each installation. Photographs shall be provided of all equipment validated, unless prohibited due to base security requirements. Where providing a photograph of a piece of equipment is not possible, a brief narrative shall be submitted describing the conditions of the equipment. One (1) digital photograph at each location shall be identified with a geographic coordinate and stored with the equipment nameplate data. All photographs shall be submitted with the Corrected Final Report, refer to Section 3.8. Digital photographs shall be of such quality and size to clearly show field conditions, equipment ratings, specifications, nameplate data and verify quantity and configuration of the associated equipment. Provide all photos using JPG format.

Equipment nameplate photographs shall be linked to the associated device within the software model. Any equipment found to be in poor physical condition or having significant physical deficiencies shall have photographs showing the deficiency linked to the associated device.

3.2.6.1 Spatial Data Requirements

All maps and associated data must comply with the latest version of Spatial Data Standards for Facilities, Infrastructure, and Environment (SDSFIE) available from the SDSFIE web site. The SDSFIE web site address can be found at https://www.sdsfie.mil/. This data will be organized using the latest version of the SDSFIE standard, Air Force Adaptation, approved by the Installation Geospatial Information & Services (IGI&S) Governance Group (IGG) available from the Air Force Civil Engineer Center (AFCEC) Geo Integration Office (GIO) as the USAF lead for IGI&S capabilities. The SDSFIE standard is the authority for file and feature class identification and definition, attribution and valid domain values. When any geospatial information collected as a result of the contract includes information identified in the Common Installation Picture (CIP) or recognized Mission Data Set (MDS) the Contractor will deliver data consistent with the established requirements for the data and will ensure functionality with the receiving system.

Information must be collected at no less than 1:1200 scale for base cantonment areas and 1:4800 scale for larger undeveloped base areas. Spatial data will meet or exceed National Map Accuracy Standards at those scales. Metadata will be provided and will use Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) for organization.

Geospatial data must be delivered in a geo-referenced Geographic Information (GIS) format (feature-based file structures with one-to-one cardinality between spatial records and attribute records) using Environmental Systems Research Institute’s (ESRI) geodatabase format. All attribute data as specifically outlined in the task order contract must be included either in the GIS data file or as a separate table with a SDSFIE key variable that may be used to relationally join the separate table with the GIS data file. All geospatial data must be delivered using the projection, coordinate system, and coordinate units stipulated by the AFCEC GIO (e.g, WGS-84, North American Datum 1983 (NAD83) projection, State Plane Coordinate System, feet or metric coordinate units). Further guidance on mapping units, coordinate systems and projections are available from the AFCEC GIO and/or Installation GIO.

Mapping- or Survey-Grade GPS or comparable traditional survey methods will be used to collect geospatial data. The use of mapping- or survey-grade GPS will depend on the precision requirements of the product data. These requirements will be specified later in this Performance Work Statement (PWS) for all contract activities where geospatial data are involved. In the case of contracts involving utility construction, location and attribute data will be obtained at the time of excavation. Further information about precision requirements should be obtained from the AFCEC GIO or installation GIO.

One-Line diagrams included in this drawing package must adhere to the standards specified in this contract. Diagrams shall reflect the approximate geographical arrangement of equipment and be designed for seamless assembly into a consolidated 72” x 96” layout by printing and taping individual sheets. To ensure clarity and consistency, all labels, linework, and symbols must conform to standardized conventions, maintaining uniformity in font, size, and spacing. All symbols and text shall be clearly legible without magnification.

Diagrams should optimize the use of available sheet space while preserving appropriate spacing for readability. Linework should be concise, avoiding unnecessary extensions, and should employ straight lines with 90-degree angles wherever feasible.

Clear and detailed symbology, accompanied by precise annotations to provide equipment identification and applicable ratings, is required. The use of color coding shall be employed to distinguish between equipment installed on different feeders.

Diagrams must prioritize logical organization, comprehensive labeling, and the inclusion of a detailed legend to ensure they are professional, visually clean, and easy to interpret.

Source data and product data remain the property of the US Government. The Contractor may be required to explain and demonstrate the company's process for protecting all geospatial data, including but not limited to geometry, attributes, metadata, topologies, and relational database schemas and operations used in association with this PWS. The Contractor may be required to sign a non-disclosure agreement attesting to the same before source data are released. Further information about security and non-disclosure requirements should be obtained from the AFCEC GIO and/or installation GIO. Some installation map data, source and/or product, may be considered by the government to be “sensitive, but unclassified” or “Critical Unclassified Information (CUI)”. The intent of this clause is to prevent intentional or unintentional dissemination of “sensitive, but unclassified” information to include unauthorized access to the source and product data by any entity wishing to do harm to the USAF or US Government while the data resides on the Contractor's computer network. The Contractor is not authorized to release this information to any third party without the explicit consent of the Air Force Civil Engineer Center (AFCEC) or the involved installation. All source information must be returned to the government POC or destroyed upon completion of the project. Special requirements for handling classified map data, if applicable, will be addressed elsewhere in this PWS. Final deliverable geospatial data must be provided to the AFCEC GIO and installation GIO in an electronic, digital format according to specifications provided above.

3.2.6.2 Geospacial Data Required Attributes

The GIS information required to be provided but not limited to is:

Transformers(sdsID):

• Transformer ID

• End of line arrestors (Y/N)

• Fault Detector(Y/N)

• Rated Size (kVA)

• Year of Manufacture

• Serial Number:

• Fused:

• Fuse Size (if applicable)

• Padmount/polemount:

• Year of installation(utilityNetworkSubtype)

• Material Type (generalMaterialType)

• Condition Rating (condRatingValue)

• Operational Status (operationalStatus)

• Location Coordinates (lattitudeFrom &to, LongitudeFrom & to).

• RPUID (realPropertyUniqueIdentifier)

• Fed from:

• Looped: y/n

• Looped to feeder:

• Generator downstream:

Substations(sdsID):

• Substation Name

• Rated Size

• Year of Manufacture

• Serial Number

• Year of installation(utilityNetworkSubtype)

• Material Type (generalMaterialType)

• Size(length)(lengthSizeUOM)

• Condition Rating (condRatingValue)

• Operational Status (operationalStatus)

• Location Coordinates (lattitudeFrom &to, LongitudeFrom & to).

• Material Type ( generalMaterialType)

• RPUID (realPropertyUniqueIdentifier)

• Any Single point of failure present:

Switch(sdsID):

• Switch ID

• Arrestors

• Model name

• Model Number

• Serial Number

• Manufacturer date

• Padmount:

• Install Date (installedDate)

• Location Coordinates (lattitudeFrom & to, longitudeFrom & to)

• Condition Rating (condRatingValue)

• Operational Status(operationalStatus)

• Crossfeed:

• Crossfeed feeder:

Feeder(sdsID):

• Feeder Capacity Amps

• Feeder cable size

• Feeder Cross Tie (at locations or switches). Y/N -1

• Feeder (Name):

• Year of Installation – (installedDate)

• Location Coordinates (lattitudeFrom & to, longitudeFrom & to)

• Condition Rating (condRatingValue)

• Operational Status(operationalStatus)

• Size(length)(lengthSizeUOM)

• Total Length (measured Length)

Cable(sdsID):

• Date of manufacturer

• Cable size (diameter)

• Total Length (measuredLength)

• Year of Installation – (installedDate)

• Location Coordinates (lattitudeFrom & to, longitudeFrom & to)

• Condition Rating (condRatingValue)

• Operational Status(operationalStatus)

• Size(length)(lengthSizeUOM)

The SDSFIE requirement is presented above as ATRIBUTE NAME. Failure to follow the maximum character limit will cause the characters to be truncated when uploaded in to the GIS system. All SDSFIE use (utilityNetworksubtype) as Electrical. Coordinate with the RealProperty to get realPropertyUniqueIdentifier properties and if not they will be left blank.

Cable routing shall be placed on the GIS map and will be an approximate location and not an actual routing diagram unless the shop concurs with the routing of the cables.

All attributes will also be included in a Microsoft Access or compatible database in addition to the GIS file as defined in 3.2.6.1.

3.2.7 Coordination of Outages

Following contract award the Contractor shall coordinate with the BCE to identify any areas of concern within the existing distribution system. The Contractor shall also work with the BCE to determine which distribution equipment and facility service disconnects OCPD are to be field verified using outages. Data collection shall be performed using energized work permits, refer to Section 3.2.10, however if energized work is not possible, outages shall be coordinated with the

BCE.

The Contractor shall develop a list of all proposed outages in coordination with the BCE. The proposed outage schedule shall include the number and type of equipment/information anticipated to be verified during each outage. The Contractor shall submit the proposed outage schedule to the BCE and COR for evaluation and approval. The BCE and COR may reject any proposed outage schedule and/or provide recommended alternatives. The Contractor shall be required to receive signatures on the approved outage schedule from both the BCE and COR and shall retain a copy of the signed outage schedule. The Contractor shall resubmit the outage schedule for approval and signatures whenever a change is made to the proposed outage schedule. All submitted changes to the proposed outage schedule shall include a narrative describing the reason for the change. All proposed power outages shall be coordinated and submitted to the BCE and COR for approval and signed a minimum of 15 working days in advance of the outage. Additional time may be required for outage coordination depending on the outage policies at each installation, refer to Attachment 1 - Base Specific Requirements.

The Contractor shall ensure that no outage affects more than 10 facilities at any one time.

To the greatest extent possible, the Contractor shall schedule all outages during base/facility non-working hours, unless otherwise required by the installation’s outage policy, refer Attachment 1 – Base Specific Requirements.

Following each field data gathering site visit, the Contractor shall submit a copy of the outage schedule to the COR indicating which outages had taken place during the site visit.

3.2.8 Energized Work Permits

Following contract award the Contractor shall coordinate with the BCE, a minimum of 15 working days in advance of any site visits, to identify any areas of concern within the existing distribution system. The Contractor shall also work with the BCE to determine which distribution equipment and facility service disconnects OCPD will require energized work permits to be field verified.

The Contractor shall develop all required energized work permit requests in coordination with the BCE. All energized work shall be performed and requested in accordance with UFC 3-560-01, NFPA 70E, AFMAN 32-1065, and local base policies. The Contractor shall submit the energized work permit requests to the BCE for evaluation and approval. The BCE may reject any energized work permit request and/or provide recommended alternatives. The Contractor shall be required to receive signatures on the approved energized work permit from the BCE and shall retain a copy of all approved energized work permits. The Contractor shall submit new/revised energized work permit requests for approval and signatures whenever a change is made to the work to be performed at each piece of equipment.

The Contractor shall be responsible for providing all necessary PPE. Contractor personnel shall wear all necessary PPE in accordance with the manufacturer’s instructions during all energized work.

Following each field data gathering site visit, the Contractor shall submit a list to the COR indicating where energized work had been performed during the site visit.

3.2.9 Safety

The Contractor shall be required to wear all necessary PPE, as dictated by NFPA 70E, UFC 3-560- 01, and IEEE C2, at all times when performing field data gathering activities. The Contractor shall also be required to close all distribution equipment enclosures, panels, and manholes and return equipment to a safe condition following field data gathering activities. If the Contractor discovers any existing safety concerns during field data gathering, such as open equipment enclosures or manholes, the Contractor shall notify the government, refer to Section 3.2.5. The Contractor shall be allowed no more than two (2) safety violations, such as improper use of PPE or leaving equipment in an unsecured or unsafe condition, per installation.

The Contractor shall provide personnel who have received appropriate training/education for the work to be performed.

3.3 BUILD/UPDATE MODEL (CDRL A001)

The Contractor shall be required to update the existing distribution system model based on information gathered during the preliminary and field data gathering phases. If an existing model does not exist, then the Contractor shall instead be required to create a new model for the distribution system.

The distribution system model shall be laid out according to the approximate geographic location of the actual equipment to allow the BCE to more easily locate equipment/devices needing to be updated in the future. If a model already exists, the Contractor shall verify that all model components match the information gathered in the field. If an error or conflict is found between the existing model and information gathered in the field, the Contractor shall make the necessary corrections. All devices containing assumed values within the model shall be clearly indicated as such through the use of specific colors, line types, and/or notes.

All distribution system devices and equipment shall be included in the model. These devices and equipment include items such as facility main service disconnects, transformers, primary power generation equipment, switches, sectionalizing cabinets, cables, manholes, poles, distribution cables, relays, CTs, breakers, and fuses. All breakers and relay settings shall be incorporated in the distribution model. The Contractor shall be responsible for modeling any devices or equipment which are not included in the standard software libraries. Following completion of each study, any custom library items created by the Contractor during the course of creating or updating the software model should be forwarded to the software manufacturer for incorporation into their standard library database. If an existing model exists and is found to be missing any devices, then the Contractor shall be responsible for adding the devices to the model. The distribution system model shall start at the output of the utility transmission lines.

If the BCE has indicated that the normal distribution system configuration routinely changes due to normal base operations, seasonal changes, routine maintenance, or any other factor other than emergency maintenance then the model shall include ‘scenarios’ to reflect each of the normal configurations. The system analyses listed below shall be computed for each scenario and the worst-case values included in the report. In addition to the worst-case values, the report shall also indicate which scenario resulted in the worst-case value for each piece of equipment.

3.4 SYSTEM ANALYSIS (CDRL A002A, CDRL A002B)

All portions of the distribution system (both single-phase and three-phase) shall be included in the System Analysis. Refer to Section 3.3 for additional information regarding worst case values.

3.4.1 Power Flow Analysis

The power flow analysis shall use existing peak and projected peak power demands, as determined by the 5-Year Plan, under various operating modes. The Contractor shall include motor loads of 50HP or more in the power flow analysis. Using the power flow analysis, the steady state active and reactive power flows shall be determined for system branches and buses, as well as bus voltage and power factor. As part of the Draft Report and Final Report, the impact of the existing and projected loads on the electrical system and equipment shall be reviewed, including factors such as:

• MW and MVAR flow from the utility service

• Voltage (Provide a separate list of all buses deviating from the acceptable voltage range, as determined by ANSI C84.1 Table 1 ‘Voltage Range A’)

• Power factor (Provide a separate list of all transformers having a power factor lower than

0.90)

• Total Harmonic Distortion (Provide a separate list of all transformers having a Voltage THD of 5% or more and/or a Current THD of 20% or more)

• MW and MVAR in each feeder and transformer

• Transformer tap settings

• Relay settings at the substations

• Fuse sizing for feeder branches

• Feeder conductor sizing

• Capacity of substations, switching stations, and primary power generation

• Paralleling the feeders and/or substations

• Ampere flow on each line section (Provide a separate list of all line sections over 90% loaded)

The power flow analysis shall be used to determine whether all components of the existing distribution system are adequately rated and have the proper OCPD ratings/settings for the existing and projected peak power demands. The analysis shall also be used to identify any potential power quality issues at any point in the distribution system because of excessive THD, poor PF, or excessive voltage drop. Power quality values are to be analyzed using both field measurements and model calculated values. When either are not acceptable, they are to be reported.

If any deficiencies are identified in the power flow analysis, Contractor shall provide recommendations for corrective actions and place reasonably grouped projects in Attachment xx – Project Recommendations. While the top five (5) shall be included in the executive summary.

The Contractor shall identify any deficiency or limitation which could impact the distribution systems ability to accommodate the 5-Year Plan. The Contractor shall make recommendations regarding additional or modified equipment or circuitry necessary to accommodate the 5-Year Plan. The additional equipment shall be coordinated with the present system such that:

• All projected loads shall be adequately served by the system, with minor extensions to be included with each construction project.

• The voltage drop in any part of the base primary system shall not deviate from the acceptable voltage range, as determined by ANSI C84.1 Table 1 ‘Voltage Range A, when all projected loads are added.

• Sufficient sectionalizing switches shall be provided for maintenance without loss of large segments of loads. Gang operated load break switches on overhead system and pad mounted switchgear following the base design standard on the underground system shall be proposed.

• The entire system shall possess the capability of safe break through the use of pad mounted switches and disconnect switches at any point on the system under load conditions.

• The system power factor shall be 90 percent or better. Capacitor power factor correction shall be justified, if proposed.

• Underground construction shall be considered in all areas. Recommendations shall incorporate a looped concept. If there are any single transformers radially feed, list as a deficiency and recommend areas where there could be a looped system for the transformer.

• The long-range goal is to convert the entire system to a primarily underground system.

• All proposed equipment shall be properly coordinated as to proper fault ratings and load settings with existing system, utility system and alternate source systems.

• Balanced feeder loading, outage localization, and reroute capability to maintain power to mission essential and critical loads by loop feed shall be included in the Contractor’s recommendations.

3.4.1.1 Motor Starting Analysis

A component of the power flow analysis shall be to evaluate the impact to the distribution system resulting from motor starting currents. The motor starting analysis shall evaluate the impact of individual motor starting currents. When performing the motor starting analysis, the Contractor shall identify any OCPD which could trip as a result of motor starting current. The Contractor shall also identify any potential power quality issues (such as excessive voltage drop) which result from the motor starting analysis and include the top five(5) recommendations in the executive summary.

3.4.1.2 Cold Load Inrush Analysis

The power flow analysis shall also evaluate whether the existing system is able to accommodate the cold load inrush that would be anticipated when reenergizing a feeder after a prolonged outage.

The cold load pickup shall include inrush currents from all service transformers and motors rated 50HP or more. The Contractor may omit a motor from the cold load inrush evaluation if controls are confirmed and documented to be in place which would prevent that specific motor from activating following a power outage.

3.4.1.3 Cross Connect Capability

A component of the power flow analysis shall be to evaluate the cross connect capabilities of the existing system. Cross connect capability is the ability of one or more distribution feeders to be sub-fed from any other feeders using devices such as sectionalizing switches to accommodate occurrences such as maintenance without resulting in widespread outages.

The cross connect evaluation shall determine whether the existing distribution system has adequate cross connect capability to allow any distribution feeder to be sub-fed from any other feeder. The Contractor shall identify any single points of failure where a fault or maintenance operations could not be isolated without resulting in widespread outages. The Contractor shall also identify whether any feeders would be unable to be sub-fed from any other individual feeder without incurring some limitations on the distribution system (for example if a feeder was unable to be sub-fed from any other feeder during peak loading). For each feeder, the Contractor shall attempt to identify a minimum of one viable cross connect scenario that would allow the feeder's full peak load to be sub-fed from another feeder without limitation.

The Contractor shall evaluate the feeder’s cross connection for mission critical facilities only that have been identified in the base’s Emergency 702 plan.

The Contractor shall evaluate each feeder’s ability to be sub-fed from another feeder but is not required to separately evaluate every possible cross connect configuration. The Contractor will attempt to find at least one viable cross connect configuration for each feeder. Any feeder that is not identified with a viable cross connection is to be identified as a deficiency and be added in the recommendations.