3d. Eielson AFB Design Guidelines, various dates.pdf

EIELSON AIR FORCE BASE DESIGN GUIDELINES

02 - GIS, Drafting & Surveying Standards 354th Civil Engineering Squadron

OPR: CES/CENM

ISSUED: 14 April 2017

02 - GIS, Drafting & Surveying Standards PAGE 1 OF 7

Purpose This document is provided for informational purposes and to assure data compatibility and compliance for as-built drawings or vector data formats specifically for the 354th Civil Engineer Squadron (CES) and its assets. Specific questions may be addressed to the 354th CES/Geobase.

1. General

1.1. Map Projection and Datum

1.1.1. Universal Transverse Mercator (UTM), World Geodetic System 1984 (WGS84) datum, Zone-6N, Units – Meters.

1.1.2. Vertical Datum: NAVD 88.

1.1.3. The coordinate system and vertical datum shall be noted in the drawing in the metadata.

1.1.4. Eielson local grid coordinates shall not be used.

1.2. Coordinate System Standards

1.2.1. All drawings shall be geo-referenced to the above coordinate system.

1.2.2. The existing network of survey monuments at Eielson AFB shall be used to establish control for all drawings. Drawings shall be based upon the established projection and coordinate system at Eielson AFB. Survey control monument coordinates are published and maintained by the National Geodetic Survey.

1.3. Ownership

1.3.1. The Government, for itself and such others as it deems appropriate, will have unlimited rights under this contract to all information and materials developed under this contract and furnished to the Government and documentation thereof, reports, and listings, and all other items pertaining to the work and services pursuant to this agreement including any copyright. Unlimited rights under this contract are rights to use, duplicate, or disclose text, data, drawings, and information, in whole or in part in any manner and for any purpose whatsoever without compensation to or approval from the contractor.

1.4. Delivery Media and Format

1.4.1. Format. A copy of all data and files developed under this contract shall be delivered to the Government in digital format (insert the appropriate submittal time:

e.g., at project completion, with each submittal as required in the Schedule of Work, etc.). All digital files shall be provided on compact disk, read-only memory (CD-ROM) in ISO-9660 format, compatible with the Government’s Target GIS hardware. A “Readme.txt” file must be included with the delivered digital media that includes normal transmittal information. The digital media used shall be fully compatible with the Government's Target GIS.

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1.4.2. Label. The external label for each digital media shall contain, as a minimum, the following information:

a. If projects reference an existing facility or infrastructure with Real Property ID, the project name should be in the following format: B99999 FTQW XX-XXXX Project Description where B99999 is the Real Property ID, FTQW XX-XXXX is the ACES/TRIRIGA Project identifier, and Project Description is a brief synopsis of the project.

b. Contract Number (and Delivery Order Number if applicable) and date.

c. Format and version of operating system software.

d. Name and version of utility software used for preparation (e.g., compression/decompression) (if applicable) and copying files to the media.

e. Sequence number of digital media.

f. List of file names on the digital media (as space on the label permits).

2. Standards for Geographical Information Systems (GIS) Deliverables

2.1. Target Technologies

2.1.1. Geospatial Information System Software: Environmental Systems Research Institute (ESRI) ArcGIS 10.X

2.1.2. Geospatial Information System Data Format: Spatial Data Standard for Facilities, Infrastructure and Environment (SDSFIE), Version 3.1, ESRI File Geodatabase.

2.2. Content Standards for Digital Geospatial Metadata

2.2.1. The ability to use existing geospatial data is important to individuals in various organizations who are trying to share data. Metadata or “data about data” is the key to developing this ability. Metadata describes the content, quality, condition, and other characteristics of geospatial data.

2.2.2. Geodetic Control Surveys. Services include horizontal and vertical control surveys for the precise location of primary survey points for planning, engineering, construction, real estate projects, GIS applications, or facility management. These surveys include third-order or higher horizontal and vertical control, geodetic astronomy, gravity, and magnetic surveys in accordance with the Standards and Specifications for Geodetic Control Networks published by the Federal Geodetic Control Committee dated September 1984. Conventional, inertial, satellite, and other traditional precise survey methods as determined to be the most cost-effective means that will achieve the required accuracy of the final product may be used.

2.2.3. Topographic and Engineering Surveys. Services include but are not limited to field acquisition and office data reduction of detailed topographic and planimetric feature data for Eielson Air Force Base to support airfield pavement evaluation, engineering site planning, cost estimating, design, construction layout and alignment

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02 - GIS, Drafting & Surveying Standards PAGE 3 OF 7 of roads, buildings, and other structures, installation master planning, and recording as-built conditions and GIS applications. Field data acquisition includes both conventional and other methods, such as a plane table, total station, or GPS.

2.3. Graphic Format

2.3.1. All surveying, mapping, and/or GIS graphical digital data generated by the contractor and supplied to the Government shall be fully compatible with, ESRI ArcGIS, Version 10.X native digital format, with a Windows 7 operating system. The contractor shall ensure that all digital files and data (e.g., base files, reference files, symbol libraries, etc.) are compatible with the Government's target GIS (i.e., GIS software, operating system, RDBMS software, schema) and adhere to the standards and requirements specified herein. The term “compatible” means that data can be accessed directly by the target system without translation, preprocessing, or post-processing of the digital data files. It is the responsibility of the contractor to ensure this level of compatibility.

2.3.2. The contractor shall utilize topology and data reviewer checks as needed. To assure that there are no overshoots or undershoots in the line work.

2.4. Mapping and GIS Standards

2.4.1. All mapping and GIS work performed as part of this contract shall conform to the following standards for accuracy, content, and structure:

2.4.2. All large-scale mapping projects (scales equal to or larger than 1: 24,000), shall follow the Government Standards (Army, Navy, Air Force) and/or “ASPRS Accuracy Standards for Large Scale Maps” (ASPRS 1990) classification standard. Small scale mapping (scales smaller than 1:24,000) projects will follow the OMB “United States National Map Accuracy Standards” (Bureau of the Budget 1947). All spatial data generated shall conform to SDSFIE 3.0. The contractor shall submit a written request for approval of any deviations from these established standards. No deviations from these established standards will be permitted unless prior written approval of such deviation has been issued by the Contracting Officer.

2.4.3. SDSFIE 3.0 schema; All GIS deliverables will include the following filled out in the attribute tables:

2.4.4. All data:

a. Feature description fields (usually the SDSFEATUREDESCRIPTION field)

b. Installation Date (DDMMYYYY)

2.4.5. Utilities:

a. Quantitative information fields (diameter, volume, voltage, or equivalent fields)

b. Unit of measurement fields (Inches, gallons, volts, or equivalent fields)

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c. Material type fields (steel, aluminum, stone, water, JP-8, or equivalent fields)

2.4.6. Transportation:

a. Material type field (asphalt, concrete, steel, equivalent fields)

b. Unit of measurement fields (Inches, gallons, volts, or equivalent fields)

c. Clearances (horizontal, (vertical for bridges))

2.5. Metadata Generation

2.5.1. Contractor shall provide metadata files for all geospatial and GIS data and products produced under this contract. Geospatial data are defined as information that identifies the geographic location and characteristics of natural or constructed features and boundaries on the earth. Geospatial data affected by these requirements are those generated in the following systems:

a. Geographic Information System (GIS);

b. Land Information System (LIS);

c. Remote Sensing or Image Processing system;

d. Automated Mapping/Facilities Management (AM/FM) system;

e. Other computer system that employs or references data using either absolute, relative, or assumed coordinates.

2.5.2. The digital metadata files shall be provided to the Government along with each final product deliverable, unless otherwise approved in writing by the Contracting Officer. The following sections within the Metadata (Description) tab for Features Classes / Shapefiles must be completed:

a. Title: Name of the Feature Class

b. Tags: Key words that describe the data set: type, spatial location, and usage)

c. Summary: List the purpose, along with date collected.

d. Description: Describe standards used such as coordinate system, datum and survey accuracy. Include information if any tables are joined or associated ancillary data such as photos.

e. Credits: List what entity collected the data, including the contact information for follow up (address and phone number).

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3. Drawing Formats and Standards for Computer Aided Drafting and Design (CADD) Deliverables

3.1. CADD Drawing Formats and Standards

3.1.1. PACAF installations use the A/E/C CADD Standard published by the CADD/GIS Technology Center for Facilities, Infrastructure and Environment for all computer-aided drafting and design-generated “as-built” drawings. The standard is published at https://cadbimcenter.erdc.dren.mil/

3.1.2. Drawings shall be in AutoCAD 2010 or more current release Drawing File (.DWG) format. Educational versions and or student formatting are not permitted.

3.1.3. Drawing sheets shall be 22 x 34 (ANSI D size)

3.1.4. Drawing sets for individual projects Drawing sets for individual projects shall include a cover sheet, or sheets, with the following information:

a. Eielson project number and name, and “PACIFIC AIR FORCES, 354th Civil Engineer Squadron, Eielson AFB, Alaska” in large lettering;

b. Base Map, indicating project location;

c. Project Site Plan; and

d. Drawing Schedule.

3.1.5. A title block on each drawing sheet shall include the following information:

a. Real Property Facility ID;

b. Project Title;

c. Eielson ACES/TRIRIGA Project Number;

d. Drawing Title;

e. Sheet Reference Number;

f. Sheet [#] of [total number of sheets in the set];

g. “354 Civil Engineer Squadron, Eielson AFB, Alaska”;

h. Drawing date;

i. Blocks for Designer’s name, Draftsman’s name, Air Force Project Manager’s name and Eielson’s Chief Engineer’s name;

j. Space to list drawing revisions;

k. Space for the Designer’s professional stamp; and

l. Design Firm’s name or logo.

https://cadbimcenter.erdc.dren.mil/

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3.1.6. No non-standard fonts or shape files shall be used.

3.1.7. PACAF installations use the United States National CAD Standard for guidelines on formats and standards for features inside buildings, vaults, or other structures.

The standard is published at http://www.nationalcadstandard.org.

3.2. Quality Assurance (QA)/Quality Control (QC)

3.2.1. The contractor shall insure that any and all products provided to the Government have received careful and complete QA/QC.

3.2.2. The Government will immediately return for remedial action (at the Contractor’s expense) any products that do not meet these specifications.

3.2.3. Before a file is placed on the delivery digital media, the following procedures shall be performed:

a. Remove all extraneous graphics outside the border area and set the active parameters to a standard setting or those in the Government-furnished seed file.

b. X-refs shall be bound, without device or directory specifications, to the drawings that reference them.

c. All digital files shall be delivered to the Government uncompressed.

d. Include all files, both graphic and nongraphic, required for the project (i.e., color tables, pen tables, font libraries, symbol libraries, user command files, plot configuration files, AML plot routines, etc.). Applicable plotstyle (.ctb) files shall be provided with the drawings.

e. Each finished CADD drawing or map shall have its own separate plot file.

f. Make sure that all support files such as those listed above are in the same directory and that refers to those files do not include device or directory specifications.

g. Include any standard sheets (i.e., abbreviation sheets, standard symbol sheets, etc.) necessary for a complete project.

h. Document any fonts, tables, symbols, cells/blocks, line styles/types, details, reference drawings, etc., developed by the contractor. The contractor shall obtain Government approval before using anything other than the Government's standards.

4. Standards for GPS Survey Deliverables

4.1. Deliverables

4.1.1. The format will be GIS product (reference Section 2 above).

4.1.2. Survey Accuracy: Third Order 5.0 cm or better.

http://www.nationalcadstandard.org/

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4.1.3. Survey Field Notes shall be included. A surveyor's narrative report shall be prepared and submitted by the surveyor or in responsible charge as documentation of the survey project. The surveyor's narrative report shall include:

a. Make and Model of the GPS receiver, Antenna, and related equipment;

b. A processing generated report or summary of all RTK field operations, including calibrations, duplicate point measurements;

c. A processing generated report regarding the baseline processing results and the software and version number used;

d. A processing generated report regarding the Network adjustment results including a summary of covariance's, standard deviation or RMS values and the software and version number used;

e. A network diagram, true line diagram or map showing the network configuration as designed;

f. A list of the HARN, CORS or reference stations used in the survey;

g. A list of coordinates by station, including the datum, geoid model, epoch, and measurement units used;

h. Local and Network Accuracies; and

i. Document any variations from these guidelines.

14 - Electrical Standards 354th Civil Engineering Squadron

OPR: CES/CEO

ISSUED: 01 September 2017

14 - Electrical Standards PAGE 1 OF 11

Purpose These standards will serve as the primary electrical criteria reference documents for services provided by architectural and engineering (A&E) firms and consultants in the development of both design-bid-build and design-build contracts. This document is not intended to be used in lieu of detailed design documents in the procurement of facility construction. No part of this document should be considered inclusive to all government requirements.

1. General

1.1. Electrical work includes, but is not limited to, the design of the following systems:

Primary Electrical Distribution Systems, Secondary Electrical Distribution Systems, Lighting Systems, Lightning Protection Systems and Grounding Systems.

1.2. Electrical designs shall comply with the following. All referenced publications shall be the latest editions unless noted otherwise:

1.2.1. Air Force Instructions (AFIs)

a. AFI 32-1062 Electrical Power Plants and Generators

b. AFI 32-1063 Electric Power Systems

c. AFI 32-1064 Electrical Safe Practices

d. AFI 32-1065 Grounding Systems

1.2.2. Engineering Technical Letters (ETLs)

a. ETL 11-9 Electrical Manhole Entry Work Procedures

b. ETL 99-4 Fire Protection Engineering Criteria Emergency Lighting and Marking of Exits

c. ETL 11-21 Emergency and Standby Generator Design, Maintenance, and Testing Criteria

1.2.3. NFPA 70 National Electrical Code

1.2.4. NEMA National Electrical Manufacturers Association

1.2.5. American National Standards Institute (ANSI)

a. ANSI C2 National Electrical Safety Code

1.2.6. 10 CFR 435 Energy Efficiency Standards for New Federal Low-Rise Residential Buildings

1.2.7. Army Technical Manuals (TMs)

a. Army TM 5-811-6 Electric Power Plant Supply

b. Army TM 5-811-1 Electrical Power Supply and Distribution

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1.2.8. Air Force Pamphlet (AFPAM)

a. AFPAM 32-1192 Energy Efficient Motors and Adjustable Speed Drives

1.2.9. Unified Facilities Criteria (UFC)

a. UFC Series 3-500 Electrical

b. UFC Series 3-600 Fire Protection

1.2.10. Illuminating Engineering Society (IES)

a. IES Lighting Handbook

1.2.11. Institute of Electrical and Electronics Engineers (IEEE), ANSI, and Underwriters Laboratory (UL) Standards, latest editions and all that apply

1.3. Please note that compliance with current ETLs, AFIs, UFCs and Industry Standards not listed above is mandatory.

2. Drawings, Specifications and Design Requirements

2.1. Electrical drawings shall provide all necessary construction details for proper installation and accurate bidding.

2.1.1. Electrical drawings shall be prepared in accordance with Section 3-3 of UFC 3- 501-01 – Electrical Engineering.

2.2. Electrical specifications shall be based upon the Unified Facilities Guide Specifications (UFGS) and shall detail requirements for all electrical materials that will be used during the construction of the designed project.

2.2.1. Design requirements shall include the following:

a. The electrical engineer responsible for the design shall visit the site and verify existing conditions.

b. The electrical designer shall perform load analysis which shall determine the size of the new load and if the existing electrical distribution system is capable of supporting the new load. If the existing electrical distribution system is not capable of supporting the new load, electrical designer shall design required changes to properly support the new electrical load.

c. The electrical designer shall perform short circuit analysis to determine the short circuit rating required for all overcurrent protective devices.

d. The electrical designer shall perform a coordination study to ensure that the new distribution system is coordinated and will coordinate with the existing distribution system.

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e. The electrical designer shall perform life cycle cost analysis on major components, and any components requested by the government, to achieve the lowest total system cost.

f. The electrical designer shall perform voltage drop calculations on all services, feeders, and on the worst case branch circuits for each panel board and switchboard.

g. The electrical designer shall perform lighting calculations for each room and site. Calculations shall be based upon maintained foot-candle intensity and Illumination Engineering Society of North America (IESNA) recommendations.

3. 1.2 Medium Voltage System Requirements

3.1. General

3.1.1. The prime contractor shall coordinate with 354 CES/CEOFE Electrical Systems for all additions, connections and alterations to any medium voltage source.

3.1.2. Overhead construction is preferred.

3.1.3. If overhead construction is used, the poles and hardware must match the feeder on which it is attached.

3.1.4. All laterals must have a disconnecting means (fuse cut outs).

3.1.5. Connections to pole top transformers must use a stirrup and hot clamp connection.

3.1.6. New pad mount transformers installed on Eielson AFB proper will be dual wound 7200/12470.

3.1.7. Voltages North of Bear Lake substation are 7200-12470 Delta-Wye.

3.1.8. Voltages past Quarry Hill substation are 14400-24900.

3.1.9. New connections to existing underground medium voltage system shall be made via a spare way on a four-way 15kV 600 amp(A) sectionalizing switch. If a spare way is not available, design shall include a new pad mounted four-way 15kV 600A sectionalizing switch that is interconnected to an existing loop circuit.

3.2. Aerial construction

3.2.1. Aerial lines will be installed in all areas, except in the following instances:

a. Where aerial lines would constitute hazards such as near flight lines (where poles must be outside of the glide slope path) or near munitions buildings.

b. Where aerial lines would obstruct operations (e.g., interfere with crane-type, materials-handling equipment).

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c. Where aerial lines would interfere with high-frequency communications or electronic equipment.

d. Where aerial installations would conflict with current policy for Family Housing Areas.

e. Where areas have such high load densities that underground electric lines are economical.

f. Where aerial lines would be incompatible with the environment or architectural concept.

3.3. Aerial conductors

3.3.1. Sizes

a. Where possible, conductor sizes will be limited to a maximum of No. 4/0 AWG copper or equivalent aluminum. The economical minimum conductor size for circuits serving administrative, support, and housing areas is No. 2 AWG.

3.3.2. Material

a. Aluminum conductor steel reinforced (ACSR), aluminum alloys, or hard drawn copper (CU) may be used for medium voltages. Low voltage conductors may be of aluminum alloys with ACSR messengers or of copper.

3.3.3. Poles

a. Solid wood poles will be used for electrical distribution lines, while concrete and steel poles will be used for roadway or area lighting circuits carried underground or separately from distribution lines. Pole lengths will be selected conservatively, making allowance for the installation of communication lines and the required pole setting depth.

3.3.4. Location

a. Where possible, electrical distribution shall be located along street or roads to avoid the use of separate poles for street lights.

3.3.5. Configuration

a. Crossarm mounting will be used for main base overhead electrical distribution systems, Transmitter road (until it transitions to single phase) and JPRC.

Armless mounting will be used for corners and in high wind/ice areas.

3.3.6. Reclosers and sectionalizers

a. Reclosers and sectionalizers shall be fully rated and coordinated.

Electronically controlled reclosers are preferred over hydraulically controlled ones. Reclosers may utilize vacuum or oil as the interrupting medium.

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Sectionalizers shall be automatic loadbreak, manual recock, and installed only as an integral part of the system protection scheme. They should not be installed for switching purposes only.

3.4. Underground construction

3.4.1. Underground lines will be coordinated with the Eielson AFB Installation Master Plan to avoid conflict with construction of future facilities.

3.4.2. All primary and secondary underground cables will be installed in either concrete encased ducts or direct bury type ducts or conduit. No direct burying of cable will be allowed.

3.4.3. Nonmetallic-jacketed cable will be used, except where circumstances warrant other coverings. Ethylene-polyethylene-rubber (EPR) will be used for all installations.

3.4.4. Low-voltage cables that will be installed outside or transition outside will be Moisture-and-Heat-Resistant Cross-linked Synthetic Polymer (XHHW).

3.5. Manhole and Handhole Requirements

3.5.1. New manholes shall include pulling irons opposite all ducts and cable rack supports on all four manhole walls.

3.5.2. All new cables in manholes shall be routed the long way around the manhole to provide slack for future splices.

3.5.3. Provide racks as required to properly rack all new cables in manholes.

3.5.4. Electrical work in manholes shall conform to ETL 11-9 Electrical Manhole Entry Work Procedures.

3.5.5. Hand holes and manholes shall be rated to withstand the load based on the application.

3.6. Pad-Mount and Building Service Transformers

3.6.1. All transformers shall be designed and constructed in accordance with UFC 3- 550-01 – Exterior Electrical Power Distribution.

3.7. Medium Voltage Switches, Relays and Control Conductors

3.7.1. Medium voltage switches shall be pad-mounted outdoor type, vacuum interrupter type and dead front construction.

3.7.2. Overcurrent relays shall match existing relays base wide. Relays shall have 5A phase inputs, 5A ground inputs, Type S1 case, 48/125V direct current (DC) power supply and ASCII RS-485 communication protocol.

3.7.3. Control Conductors shall terminate in un-insulated ring terminals.

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3.7.4. Control conductors shall be color coded IAW National Electrical Manufacturers Association (NEMA) WC 30, Method 1.

3.7.5. Terminal blocks for control conductors shall have double rows of screw terminals be rated for up to #10 American Wire Gauge (AWG) conductors, be rated 30A minimum, have tin plated terminals and blocks be made of a phenolic compound.

3.7.6. Terminal blocks for current transformers shall have shorting blocks and screws.

3.8. Equipment Pads and Switch Ducts

3.8.1. New concrete equipment pads for external pad mounted transformers, switches and other electrical equipment shall have thickened edges. Interior floor mounted transformers, switches and other electrical equipment shall be raised at least 4 inches on a concrete pad for housekeeping purposes. Switch ducts from new 15kV switches shall go to a manhole before going to a transformer or another 15kV switch.

3.9. Metering

3.9.1. Electrical meters shall be provided for all facilities in accordance with the Eielson AFB Utility Metering Requirements Design Guide.

4. Low Voltage Systems

4.1. New low voltage conductors shall be copper and those installed below grade shall be type XHHW. Maximum conductor size shall be 500 kcmil. Conductors shall be paralleled as required to comply with this requirement.

4.2. Neutral Bus Rating

4.2.1. 208Y/120V or 120/240V Branch Circuit Panel boards shall have 200 percent rated neutral bus.

4.3. Nonlinear Load Supply Requirements

4.3.1. Panel boards that supply power to nonlinear loads (electronic equipment affected by electrical noise i.e., computers, printers, fax machines, copiers, etc.) shall also have an isolated ground bus.

4.3.2. Do not use shared neutrals for any circuits.

4.3.3. Neutrals that are part of a panel board feeder that feeds nonlinear loads shall be oversized to a minimum of one trade size larger than the phase conductors.

4.4. Bus Requirements

4.4.1. Panel boards, switchboards and switchgear shall have copper bus.

4.4.2. New panel boards and switchboards shall have a minimum of 20 percent spare space for future addition.

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4.4.3. New panel boards and switchboards shall be balanced to the maximum extent possible.

4.5. Switchboards and switchgear shall have raised 4 inch concrete pad for housekeeping purposes.

4.6. Panel Board Requirement

4.6.1. Panel boards not in sight of the feeder over current protection shall have a main circuit breaker.

4.6.2. Panel boards shall have hinged front covers.

4.6.3. Panel boards shall have bolt on style circuit breakers.

4.6.4. Panel boards shall be recessed mounted as much as possible.

4.7. Electrical Rooms

4.7.1. The headroom above electrical equipment in electrical rooms shall be free from plumbing piping (gas, water) and HVAC equipment.

4.7.2. Avoid routing gas, water, piping and HVAC duct work through electrical room.

4.7.3. Electrical room space shall be climate controlled.

4.8. Transformers

4.8.1. All new transformers shall be sized with a minimum of 25 percent spare capacity for future load.

4.8.2. New transformers shall have copper windings and new transformers that supply computer loads shall have an electrostatic shield.

4.8.3. Single phase transformers may not be banked into three phase transformer banks.

4.9. Raceways

4.9.1. Conceal interior raceways.

4.9.2. An electrical metallic tubing (EMT) raceway shall be connected to enclosures and other raceways with compression type connectors.

4.9.3. Set screw type connectors shall not be used for EMT raceways.

4.10. Feeder Sizing

4.10.1. Feeders shall be sized for a maximum 2 percent voltage drop.

4.10.2. Branch circuits shall be sized for a maximum 3 percent voltage drop.

4.11. Conduit Grounding Requirement

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4.11.1. Each conduit shall include a copper equipment grounding conductor sized IAW

NFPA 70.

4.11.2. Equipment grounding conductors shall be insulated.

4.12. Duct Bury Depth

4.12.1. Ducts installed below grade shall be 2 feet minimum.

4.12.2. All ducts installed below grade shall be Rigid metallic tubing or concrete encased.

4.12.3. No direct buried wiring will be accepted.

4.12.4. All ducts shall be installed on bedding material and concrete encased regardless of location.

4.12.5. Additionally, high voltage ducts shall have a red warning indicator installed 12 inches above the duct.

4.13. Device Wiring Requirement

4.13.1. Receptacles and other wiring devices shall be wired with the screw terminal connections, not the push in connections.

4.14. Outdoor wiring

4.14.1. Outdoor wiring shall be arctic rated to -50°F.

4.15. Head Bolt Outlet (HBO) Requirement

4.15.1. Please reference the Eielson Air Force Base Headbolt Outlet Design Guide.

5. Motors

5.1. Motors must meet or exceed Energy Standard 10 CFR 435 to achieve maximum energy conservation.

5.2. Motors less than 1/2 horsepower (HP) shall be single phase.

5.3. Motors larger than 1/2 HP shall be poly phase.

5.4. Provide power factor correction for all motors 7.5 kilo Watt (kW) (10 HP) and larger.

Power factor correction shall be to 95 percent at rated load for the motor.

5.5. Soft start or reduced voltage starting is required for all motors 15 kW (20 HP) or larger.

5.6. New motor controllers shall include hand-off-auto switch.

5.7. New pilot lights shall be a LED type with a replaceable lamp unit.

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5.8. Motor controllers shall be of magnetic, across-the-line type, reduced voltage and current limiting type.

5.9. Motor control centers shall have disconnect switches, branch circuit overload protection and be controller mounted in a single assembly.

5.10. Motor control circuits shall not exceed 120 volts to ground.

5.11. For ground neutral systems, the neutral conductors shall be directly connected to the started coils.

5.12. In HVAC and Plumbing designs, variable frequency drives (VFD) shall be used in applications where partial loading occurs.

5.13. VFDs shall be of 12 pulse design and include a 3 percent line reactor; or VFD’s shall include a low pass harmonic filter designed to reduce the total harmonic current distortion to 12 percent or less.

5.14. Low pass filters shall have the capacitors switched out when the motor is not operating.

5.15. VFD rated motor cable shall be used for the circuits from the VFD to the motor.

6. Service Equipment

6.1. Service entrance equipment shall be located in readily accessible spaces to permit the quick disconnect of power in case of emergency.

6.2. The service entrance location shall be coordinated with the exterior electric system through 354 CES/CEOFE to ensure that electrical service and feeder circuit lengths are as short as practicable.

6.3. Low voltage service conductors (600 volts or less) shall be installed underground from transformers to service entrance equipment.

6.4. Services exceeding 600 volts will be limited to large facilities requiring several load centers. The high voltage service conductors shall be installed underground from the transformer to the service entrance equipment.

6.5. Service equipment capacities shall be adequate for the estimated load plus 10 to 20 percent for future growth.

6.6. Generally there shall only be one service disconnect for each facility.

6.7. At each service entrance provide one kWH demand electric meter with remote capability communication which can be connected to the Eielson AFB EMCS/SCADA system.

7. Grounding

7.1. Grounding electrodes shall be copper metallic rods not less than 3/4 inches in diameter, 8 feet long and driven into the ground outside the facility.

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7.2. Ground rods may be installed in multiples on a lateral spacing not less than their buried depth.

7.3. Electrode resistance to ground shall not exceed 25 ohms under normally dry conditions.

7.4. Communication facilities electrode resistance to ground shall not exceed 5 ohms under normally dry conditions.

7.5. All grounding type outlets and receptacles shall be grounded by a separate ground conductor.

7.6. Grounding shall comply with NFPA 70 requirements.

8. Wiring Systems and Circuits

8.1. Wiring systems shall consist of insulated copper conductors installed in metal raceways.

8.2. Branch circuits shall be rated a minimum of 20 amperes.

8.3. In designing circuits, the combined voltage drop on feeders and branch circuits shall not exceed 5 percent.

8.4. Raceway and conduit size shall be IAW the provisions of the National Electric Code.

8.5. All wiring in transformer rooms shall be in rigid steel conduit wiring troughs or busways.

8.6. Use of plastic conduit within structures shall be limited to applications below concrete slab-on-grade construction or in highly corrosive non-hazardous locations.

8.7. Aluminum conduit shall not be buried in concrete.

8.8. Flexible metal conduit shall be used for permanent connection to large apparatuses and motors where movement may be involved. Flexible metal conduit may also be used for lighting fixture connections above suspended ceilings.

8.9. All new interior wiring shall be enclosed by the raceway within walls, floors or ceilings. Exposed wiring or carriers are not allowed.

8.10. Non-metallic sheathed cable (Romex) is not allowed.

8.11. Surface mounting may be considered for extreme situations in remodeling projects.

8.12. Under floor raceway may be used in large administrative areas where an extensive power and communication requirement cannot be adequately served by wall outlets.

8.13. Busways may be used for feeders and service entrances when they are more economical than equivalent-capacity insulated conductors in raceways.

354th Civil Engineering Squadron

14 - Electrical Standards PAGE 11 OF 11

8.14. Plug-in busways may be used in industrial or shop areas to serve a multiplicity of power outlets or motors.

8.15. Cable trays may be used as a support system for multi-conductor type cable such as underground feeder or service entrance, as permitted by NFPA 70.

8.16. A dedicated circuit shall be provided for all computers and sensitive electronic equipment. System furniture to be installed shall have all work stations prewired.

9. Lighting

9.1.1. All lighting shall be designed and constructed in accordance with UFC 3-530-01

– Interior and Exterior Lighting Systems and Controls. .

9.2. Exit and Emergency Lighting

9.2.1. Please reference UFC 3-600-01 – Fire Protection Engineering for Facilities and Eielson Air Force Base Fire Protection Design Guide No. 71 for further information.

10. Lightning Protection

10.1. Lightning protection systems shall be designed and constructed in accordance with

UFC 3-575-01 – Lightning and Static Electricity Protection Systems.

11. LED Lights

11.1. LED lighting must conform to the following ETL’s:

11.1.1. ETL 11-29 - Use of LED Fixtures in Airfield Lighting Systems on Air Force Installations and Enduring/Contingency Locations