Atch_27_1728F-806_UG__Main_VEA_standard.pdf
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- Nellis AFB Multiple Award Construction Contract (MACC) Solicitation Federal contract opportunity
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- FA4861-16-R-A100
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Atch 27_1728F-806 UG Main VEA standard
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RUS Bulletin 1728F-806 Viewing Instructions
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TABLE OF CONTENTS
1. General
2. Storage of Material and Equipment
3. Handling of Cable
4. Plowing
5. Special Requirements for Coordination Between Owner and
Contractor Where Cable is to be Installed by Plowing
6. Trenching
7. Installing Cable in Trench
8. Minimum Bending Radius of Cable
9. Conduit
10. Tagging of Cables at Termination Points
11. Splices
12. Primary Cable Termination and Stress Cones
13. Special Precautions for Cable Splices and Terminations
14. Secondary and Service Connections
15. Pedestals
16. Inspection and Inventory of Buried Units
17. Backfilling
18. Equipment Pads
19. Transformers
20. Equipment Enclosures
21. Utility Safety Signs
22. Sacrificial Anodes
23. Grounding
24. Cable Location Markers
25. Installed Cable and Acceptance Tests
Attachment A: Index of Drawings Attachment B: Construction Drawings
INDEX:
ASSEMBLIES:
Underground Distribution – Bul. 1728F-806
SPECIFICATIONS AND STANDARDS:
Construction Specifications and Drawings – Bul. 1728F-806 Underground Electric Distribution – Bul. 1728F-806
UNDERGROUND DISTRIBUTION:
Underground Rural Distribution – Bul. 1728F-806
Bulletin 1728F-806
1. GENERAL
1.1 These specifications provide for the construction of underground distribution power facilities as specified by the owner. The owner is the organization contracting for the services and, when used in connection with RUS financed facilities, is synonymous with the term borrower as defined in §1710.2.
1.2 It is the responsibility of the borrower to ensure that all construction work shall be accomplished in a thorough and workmanlike manner in accordance with the staking sheets, plans and specifications, and the construction drawings.
1.3 If construction work is performed by the Owner's force account crews instead of a contractor, any reference to "Contractor" apply to the force account crews.
1.4 The provisions of section §1724.50, Compliance with National Electrical Safety Code (NESC) apply to all borrower electric system facilities regardless of the source of financing.
a. A borrower must ensure that its electric system, including all electric distribution, transmission, and generating facilities, is designed, constructed, operated, and maintained in accordance with all applicable provisions of the most current and accepted criteria of the NESC and all applicable and current electrical and safety requirements of any State or local government entity. Copies of the NESC may be obtained from the Institute of Electrical and Electronic Engineers, Inc., 345 East 47th
Street, New York, New York 10017-2394. This requirement applies to the borrower’s electric system regardless of the source of financing.
b. Any electrical standard requirements established by RUS are in addition to, and not in substitution for or a modification of, the most current and accepted criteria of the NESC and any applicable electrical or safety requirements of any State or local governmental entity.
c. Overhead distribution circuits shall be constructed with not less than the Grade C strength requirements as described in Section 26, Strength Requirements, of the NESC when subjected to the loads specified in NESC Section 25, Loadings for Grades B and C. Overhead transmission circuits shall be constructed with not less than the Grade B strength requirements as described in NESC Section 26.
2. STORAGE OF MATERIAL AND EQUIPMENT: It is the responsibility of the borrower to ensure that all material and equipment to be used in construction must be stored so as to be protected from deteriorating effects of the elements. If outdoor storage cannot be avoided, the material and equipment must be stacked on supports well above the ground line and protected from the elements as appropriate, and with due regard to public safety.
3. HANDLING OF CABLE: It is the responsibility of the borrower to ensure that the cable shall be handled carefully at all times to avoid damage, and shall not be dragged across the ground, fences or sharp projections. Care shall be exercised to avoid excessive bending of the cable. The borrower shall ensure that the ends of the cable be sealed at all times against moisture with suitable end caps. Where it is necessary to cut the cable, the ends will be terminated or sealed immediately after the cutting operation.
4. PLOWING
4.1 When cables are to be installed by plowing, it is the responsibility of the borrower to ensure that the plowing equipment be subject to the approval of the Owner and the public authorities having jurisdiction over highway and road rights-of-way. The plow must be provided with a means to assure positive holddown of the plow blade to provide proper depth at all times.
4.2 The design of the plowshare must ensure that the cable passing through the plow will not be bent in a radius less than 12 times the outside diameter of the cable. The equipment must be capable of extending the plow a minimum of 6 inches below the specified depth under all terrain conditions of plow utilization.
4.3 The borrower must ensure that equipment and construction methods used during construction cause minimum displacement of the soil. The slot made in the soil by the cable plows must be closed immediately by driving a vehicle track or wheel over the slot or by other suitable means.
4.4 Starting and terminating points of the plowing operation must be excavated prior to cable installation to reduce possible cable damage and to assure sufficient burial depth.
4.5 During the plowing operation, care is to be exercised to feed the cable or wire into the ground through the plow loosely and at minimum tension. Besides using proper equipment and construction methods, supervision by the borrower or the borrower’s representative shall be furnished at all times at the site of plowing operations to assure compliance with these specifications.
4.6 If, during the plowing operation, the plow should strike a buried object or rock that would stop the equipment and necessitate removal of the plow from the ground, the plow must be removed from the ground carefully and, if practical, without backing the plow. If it should be necessary to back the plow to remove it from the ground, the cable must be uncovered a sufficient distance back for inspection by the Owner to determine whether the cable or wire has been damaged.
4.7 The cable must be inspected carefully as it is payed out from the reel to be certain that it is free from visible defects. Every instance of damaged cable observed at any time, whether prior to installation, during installation, or when discovered by test or observation subsequent to installation in plant, shall be immediately called to the attention of the Owner. Repair or correction of such damage must be completed promptly and in accordance with the written instruction of the Owner. The location of any such repair must be indicated on the staking sheet.
5. SPECIAL REQUIREMENTS FOR COORDINATION BETWEEN OWNER AND
CONTRACTOR WHERE CABLE IS TO BE INSTALLED BY PLOWING
5.1 It is the responsibility of the borrower to ensure that the Contractor and the Owner shall jointly review the staking sheets prior to the start of construction. At that time, the Contractor shall propose any desirable changes or clarifications. These changes, if approved by the Owner, shall be made and recorded on the staking sheets. No changes on the staking sheets shall be made by the Contractor without the prior written approval of the Owner. A representative of the Owner shall remain in the immediate vicinity of the plowing operations at all times and shall consider and possibly approve any acceptable changes proposed by the Contractor. A representative of the Owner shall also inspect any damage to cable and approve acceptable methods of repair or correction of such damage in accordance with the provisions of these specifications.
5.2 In the event that rock is encountered during the plowing operation so that the buried cable cannot be installed to the required minimum depths in soil, the Contractor shall determine for the Owner the nature and extent of the rock encountered. Based on this information, the Owner shall determine whether the cable is to be rerouted, trenched in rock or a change made to aerial construction. This decision shall be made promptly, and appropriate changes in units shall be made on the staking sheets. Such changes shall be in writing, dated, and initialed by the Owner.
5.3 Due to the necessity of making on-the-spot corrections and changes on staking sheets, it may not be possible for the Owner to issue revised staking sheets to the Contractor in all cases. When changes are made, dated, and initialed by the Owner on a set of the Contractor's staking sheets, it shall be the Contractor's responsibility to transfer these changes to all other sets of staking sheets being used by the Contractor for construction purposes.
5.4 The Contractor shall provide a competent representative to work with the Owner on the inventory and inspection of buried cable units. The inventory of buried cable will be made as soon after the plowing operation as practical to avoid later disagreements on the quantity of cable installed when changes are required in the project.
6. TRENCHING
6.1 It is the responsibility of the borrower to ensure that all trenching depths specified are minimum as measured from the final grade to the top surface of the cable. The routing must be as shown on the staking sheets and plans and specifications unless conditions encountered are such that changes are necessary to accomplish the work. In such event, the Owner shall be notified promptly. If rock or other difficult digging is involved, the Contractor shall determine the nature and extent of the difficulty, and the Owner shall determine whether rerouting, rock trenching, plowing or other changes are necessary. Loose soil or crumbly rock shall not be considered as "difficult digging." The trench widths specified are minimum and should be increased as necessary to obtain the required depths in loose soils.
6.2 Where trenches are intended for more than one cable, particular care must be taken to provide for extra depth and width to allow for soil falling into the trench during the laying of the first cables.
6.3 Care shall be exercised to minimize the likelihood of waterflow since this may cause trench damage and reduction in trench depth. If this occurs, the trench must be cleared to the specified depth before installing the cable.
6.4 All trenches must follow straight lines between staked points to the greatest extent possible.
Secondary and service trenches must extend in a straight line from takeoff points wherever possible. The trenches must be dug so that the bottom has a smooth grade. Large rocks, stones and gravel in excess of l inch must be removed from the bottom of the trench. Where this cannot be accomplished, a 2 inch bed of sand or clean soil must be placed in the bottom of the trench.
6.5 Construction shall be arranged so that trenches may be left open for the shortest practical time to avoid creating a hazard to the public and to minimize the likelihood of collapse of the trench due to other construction activity, rain, accumulation of water in the trench, etc.
7. INSTALLING CABLE IN TRENCH
7.1 It is the responsibility of the borrower to ensure that the cable must be placed in the trench as soon after the trenching operation as feasible. Wherever possible, cable must be payed out from the reel mounted on a moving vehicle or trailer. The reel must be supported so that it can turn easily without undue strain on the cable. The cable must be carefully placed in the trench by hand. All cable placement will be done under constant supervision by the borrower or the borrower’s representative who assure that no damage to the cable occurs.
7.2 The cable must be inspected carefully as it is removed from the reel in laying operations to be certain that it is free from visible defects. The Owner shall decide upon corrective action when defects are discovered.
7.3 Where more than one cable is to be placed in a trench, the spacings required by the specifications must be observed. Care must be taken that any soil falling into the trench during the laying of the first cable does not reduce the clearances of the last cable below that specified.
Should this occur, the excess soil must be removed carefully by hand or with equipment that will not damage the installed cables.
7.4 Sufficient slack, and in no case less than 24 inches, must be left at all risers, transformer pads, pedestals and terminal points so that movements of cable after backfilling will not cause damaging strain on the cable or terminals. The cable trench must be mechanically compacted at least 36 inches from all riser poles, pads, pedestals and terminal points.
7.5 The ends of all secondary cable terminated below ground must be long enough to reach at least 12 inches above the top of the underground enclosure.
8. MINIMUM BENDING RADIUS OF CABLE: It is the responsibility of the borrower to ensure that the minimum bending radius of primary cable is 12 times the overall diameter of the cable. The minimum bending radius of secondary and service cable is six times the overall diameter of the cable. In all cases the minimum radius specified is measured to the surface of the cable on the inside of the bend. Cable bends must not be made within 6 inches of a cable terminal base.
9. CONDUIT: It is the responsibility of the borrower to ensure that all exposed ends of conduit must be plugged during construction to prevent the entrance of foreign matter and moisture into the conduit. Burrs or sharp projections which might injure the cable must be removed. Riser shield or conduit must extend at least 18 inches below grade at all riser poles. If full round conduit is used as a riser shield, an end bell must be installed on the lower end to prevent damage to the cable.
10. TAGGING OF CABLES AT TERMINATION POINTS: As the cables are laid, it is the responsibility of the borrower to ensure that they must be identified and tagged. The identification must be of a permanent type, such as that done on plastic or corrosion resistant metal tags. The tag must be securely attached to the cable. Paper or cloth tags are not acceptable.
11. SPLICES
11.1 It is the responsibility of the borrower to ensure that cable splices must be of the pre-molded rubber, heat-shrink, or cold-shrink type, of the correct voltage rating and must be installed in accordance with the splice manufacturer's instructions. Splices that depend solely on tape for a moisture barrier must not be used.
11.2 Not more than one splice may be permitted for each 2000 feet of cable installed unless authorized by the Owner. No bends may be permitted within 12 inches of the ends of a splice.
The cable or circuit numbers and the exact location of all splices must be noted on the staking sheets (as built).
12. PRIMARY CABLE TERMINATION AND STRESS CONES: It is the responsibility of the borrower to ensure that prefabricated stress cones or terminations must be installed in accordance with the manufacturer's instructions at all primary cable terminals. They must be suitable for the size and type of cable that they are used with and for the environment in which they will operate. Any indication of misfit, such as a loose or exceptionally tight fit, must be called to the Owner's attention. The outer conductive surface of the termination must be bonded to the system neutral. A heat-shrink or cold-shrink sleeve must be installed to seal between the body of the termination and the cable jacket.
13. SPECIAL PRECAUTIONS FOR CABLE SPLICES AND TERMINATIONS: It is the responsibility of the borrower to ensure that a portable covering or shelter must be available for use when splices or terminations are being prepared and when prefabricated terminations are being switched. The shelter must be used as necessary to keep rain, snow and windblown dust off the insulating surfaces of these devices. Since cleanliness is essential in the preparation and installation of primary cable fittings, care shall be exercised to prevent the transfer of conducting particles from the hands to insulating surfaces. Mating surfaces must be wiped with a solvent such as denatured alcohol to remove any possible accumulation of dirt, moisture or other conducting materials. A silicone grease or similar lubricant should be applied afterwards in accordance with the manufacturer's recommendations. Whenever prefabricated cable devices are opened, the unenergized mating surfaces must be lubricated with silicone grease before the fittings are reconnected.
14. SECONDARY AND SERVICE CONNECTIONS
14.1 It is the responsibility of the borrower to ensure that a suitable inhibiting compound must be used with all secondary and service connections.
14.2 All secondary cable connections located below grade or in secondary pedestals must be made with pre-insulated secondary connector blocks. Diving bells with open terminals, insulating boots or moisture barriers that depend solely on tape are not acceptable.
14.3 All transformer secondary phase terminal connections must be completely insulated. If the secondary phase terminals are threaded studs, the connection must be made with a pre-insulated secondary transformer connection block. If the transformer secondary phase terminals are insulated cable leads, connection must be made with a pre-insulated secondary connector block or with a secondary prefabricated splice when the transformer leads continue directly to the service.
14.4 If a transformer is so large that it must have secondary spades, the spades must be taped or otherwise insulated. Boots used for insulation must be taped so that they cannot be readily slipped off.
14.5 Secondary connections to terminals of pole-mounted transformers must be made so that moisture cannot get inside the cable insulation. This may be accomplished by covering the terminals and bare conductor ends with an appropriate moisture sealant or providing a drip loop.
14.6 The secondary connections and insulation must have accommodations for all future and existing services as shown on the plans and specifications.
15. PEDESTALS: Where required, it is the responsibility of the borrower to ensure that pedestal stakes must be driven vertically into the bottom of the trench before cables are placed, and shall be located as shown on the staking sheets. Pedestal posts and supporting stakes must be in place before the cable is installed. All pedestals should be approximately at the same height above finished grade.
16. INSPECTION AND INVENTORY OF BURIED UNITS: Before any backfilling operations are begun, it is the responsibility of the borrower to ensure that the Contractor and Owner shall jointly inspect all trenches, cable placement, risers, pedestal stakes, and other construction that will not be accessible after backfilling, and an inventory of units shall be taken.
If corrections are required, a second inspection shall be made after completion of the changes.
17. BACKFILLING
17.1 It is the responsibility of the borrower to ensure that the first 6 inches of trench backfill shall be free from rock, gravel or other material which might damage the cable jacket. In lieu of cleaning the trench, the Contractor may, at the Contractor's option, place a 2 inch bed of clean sand or soil under the cable and 4 inches of clean soil above the cable. Cleaned soil backfill when used shall contain no solid material larger than l inch. This soil layer must be carefully compacted so that the cable will not be damaged.
17.2 Backfilling must be completed in such a manner that voids will be minimized. Excess soil must be piled on top and must be well tamped. All rock and debris must be removed from the site, and any damage to the premises repaired immediately.
17.3 Pieces of scrap cable or other material remaining after installation must not be buried in the trench as a means of disposal.
18. EQUIPMENT PADS: It is the responsibility of the borrower to ensure that the site for the pad shall be on undisturbed earth adjacent to but not over the trench. The site shall be cleared of all debris and excavated to the specified depth. Gravel or sand may be added to the site and thoroughly compacted. The pad shall be installed level at the specified elevation.
19. TRANSFORMERS: It is the responsibility of the borrower to ensure that transformers shall be handled carefully to avoid damage to the finish and shall be positioned in accordance with the staking sheets and the plans and specifications. Only qualified and experienced personnel shall be allowed to make connections and cable terminations.
20. EQUIPMENT ENCLOSURES: It is the responsibility of the borrower to ensure that excavations for sleeve-type transformer pads and other below-grade enclosures shall be made so as to disturb the surrounding earth as little as practical. Enclosures shall be installed with side walls plumb. When enclosures are of fiber, plastic, or other semiflexible material, backfilling should be done with covers in place and with careful tamping so as to avoid distortion of the enclosure. When installation is complete, the cover of the enclosure shall not be lower than and not more than 2 inches higher than the grade specified by the Owner. Soil in the immediate vicinity shall be tamped and sloped away from the enclosure. At the Owner's option, the excess soil shall be removed from the site or spread evenly over the surface of the ground to the satisfaction of the Owner.
21. UTILITY SAFETY SIGNS: It is the responsibility of the borrower to ensure that utility safety signs must be in accordance with ANSI Z535.2, Environmental and Facility Safety Signs, and shall be applied in accordance with RUS drawings. Copies of the ANSI Z535.2 may be obtained from the National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Suite 1847, Rosslyn, Virginia 22209.
22. SACRIFICIAL ANODES: It is the responsibility of the borrower to ensure that sacrificial anodes specified shall be installed with backfill package intact and connecting leads positioned for proper connection after the equipment is in place. Anodes shall neither be moved, positioned, lifted, nor lowered into place by pulling on the connecting leads.
23. GROUNDING
23.1 It is the responsibility of the borrower to ensure that all neutral conductors, grounding electrodes, sacrificial anodes and groundable parts of equipment shall be interconnected. All interconnections shall be made as shown on the construction drawings. A copper-clad or galvanized steel ground rod with minimum length of 8 feet shall be installed at all equipment locations as shown in the construction drawings and at all cable splices and taps.
23.2 All pad-mounted equipment enclosures, including transformers, shall be grounded in such a manner that two separate grounding paths exist between the enclosure and the grounding rod(s).
24. CABLE LOCATION MARKERS: It is the responsibility of the borrower to ensure that location of permanent cable markers shall be as shown on the staking sheets.
25. INSTALLED CABLE AND ACCEPTANCE TESTS
25.1 It is the responsibility of the borrower to ensure that:
a. Continuity: After installation of the cable and prior to the high potential test specified below, authorized personnel shall perform a simple continuity test on the system. This can easily be accomplished by grounding the conductor at the source and checking for continuity from the end of each tap with an ohmmeter or with a battery and ammeter.
b. High Potential: After successful continuity tests, authorized personnel should perform high potential tests on each length of cable, with terminations in place but disconnected from the system.
25.2 The installation shall withstand for a minimum of 15 minutes a DC test potential as follows:
Primary URD Cable (XLP-TR, and EPR)
Insulation Field DC Thickness Acceptance
Rated Voltage Inches Test Voltage
15 kV .220 64.0 kV 25 kV .260 80.0 kV 25 kV .345 100.0 kV
The voltage may either be increased continuously or in steps to the maximum test value:
a. If increased continuously, the rate of increase of test voltage should be approximately uniform and increasing to maximum voltage in not less than 10 seconds and in not more than approximately 60 seconds.
b. If applied in steps, the rate of increase of test voltage from one step to the next should be approximately uniform. The duration at each step shall be long enough for the absorption current to attain reasonable stabilization (l minute minimum). Current and voltage readings should be taken at the end of each step duration. The number of steps should be from five to eight.
25.3 Warning: A hazardous voltage may still exist on the cable after the above testing has been completed. Therefore, before handling the cable, it is the responsibility of the borrower to ensure that the conductor shall be grounded to permit any charge to drain to earth.
Attachment A
Attachment A
INDEX OF DRAWINGS
Primary Terminal Pole Assemblies:
UA1 Single Phase Cable Deadend Terminal Pole
UA2 Single Phase Cable Deadend Terminal Pole
UA3 Single Phase Cable Tangent Terminal Pole
UB1 Vee-Phase Cable Terminal Pole with Cutouts and Crossarm Mounting Arresters
UB2 Vee-Phase Cable Terminal Pole with Cutouts and Bracket Mounting Arresters
UB3 Vee-Phase Cable Terminal Pole without Cutout, with Crossarm Mounting Arresters
UB4 Vee-Phase Cable Terminal Pole without Cutout, with Bracket Mounting Arresters
UC1 Three Phase Cable Terminal Pole with Cutouts and Crossarm Mounting Arresters
UC2 Three Phase Cable Terminal Pole with Cutouts and Bracket Mounting Arresters
UC2-1 Three Phase Cable Deadend Terminal Pole
UC2-2 Three Phase Cable Tangent Terminal Pole
UC5-1 Three Phase Cable Deadend Terminal Pole with Disconnect Switches
UC6-1 Three Phase Cable Tangent Terminal Pole with Disconnect Switches
Transformer Assemblies:
UG6, Single Phase Pad-Mounted Transformer (Radial Feed)
UG6B,
UG7, Single Phase Pad Mounted Transformer (Loop Feed)
UG7B
UG17, Three Phase Pad Mounted Transformer (Radial Feed)
UG17B
UG17-2, Three Phase Pad Mounted Transformer (Loop Feed)
UG17-2B
UG17-3, Three Phase Pad Mounted Loop Feed Transformer with UG17-3B Radial Feed
Secondary Assemblies:
UJ1, Secondary Connector Blocks
UJ2
UK5 Secondary Pedestal Underground Cable
UK6 Secondary Handhole Underground Cable
Pad Assemblies:
UM1-5C, Pad Assemblies
UM1-5NC
UM1-6C Three Phase Transformer Concrete Pads
UM1-7C, Ground Sleeve Assembly
UM1-7NC
Sectionalizing Assemblies:
UM3-14 Single Phase Sectionalizing Enclosure
UM3-44, Single Phase Pad Mounted Sectionalizer or Recloser
UM3-45
UM3-46 Three, Single Phase Pad Mounted Reclosers
UM3E Fuse/Switch Enclosure Installation
UM3E-1, Single Pole Switching 200 AMP Fuse Enclosure UM3E-2 Installation Wiring Diagrams (Single Phase and
Two Phase)
UM3E-3 Fuse Enclosure (200 - 600 AMP) Wiring Diagrams (Three Phase)
Secondary Terminal Pole Assemblies:
UM5 Secondary Cable Terminal Pole
UM5-6, Secondary Cable Terminal to Meter Base
UM5-6A
Miscellaneous Accessories:
UM6-1 – UM6-8 Miscellaneous Accessories
Regulator Assembly:
UM7-1 Single Phase Regulator Assembly with By-Pass Switching Function Underground to Underground
Metering Assemblies:
UM8 Meter Installation Underground Source
UM8-2 Meter Pedestal Wood Post
UM8-3 Trough Type Meter Pedestal
UM8-3A
UM8-4, Meter & Switch Installation Underground Source
UM8-4A
UM8-5 Pad Mounted Switch Installation Underground Source
UM8-6 C.T. Meter Installation Single Phase
UM8-7 C.T. Meter Installation Three Phase
Miscellaneous Assemblies:
UM9-2 Pad Mounted Switched Capacitor Enclosure
UM12 Cable Route Marker
Corrosion Control Assemblies:
UM27-1 Sacrificial Anode for Cable Splice Protection (Bare to Jacketed Cable)
UM27-2 Sacrificial Anode for Equipment Ground Protection
UM27-3 Sacrificial Anode for Cable Ground Protection
UM28 Test Station
Sectionalizing Assembly:
UM33 Multi Phase Sectionalizing Enclosure Pad or Sleeve Mounted
Grounding Assemblies:
UM48-1 Grounding Assembly for Pad Mounted Single Phase Transformers and Enclosures
UM48-2 Grounding Assembly for Pad Mounted Multi Phase Transformers and Enclosures
UM48-3 Grounding Assembly for Underground Primary Cable
UM48-4 Grounding Assembly for Underground Primary Cable (with Test Station)
UM48-5 Grounding Grid for Pad Mounted Equipment Installation
UM48-6 Grounding Array for Pad Mounted Equipment Installation
Conduit and Trenching Assemblies:
UR2 to Trenches for Direct Burial Cables
UR2-2
UR2-3 to Trenches for Direct Burial Cables
UR2-5
UR2-NT Trenches for Direct Burial Cable
UR2-ST
Guideline Drawings:
UX1 Open Delta Connection with Single Phase Pad Mount Transformers
UX2 Single Phase Pad Mounted Transformer Deferred Unit Pedestal Type
UX3 Single Phase Padmounted Transformer Deferred Unit Pad-Sleeve Type
UX4 Installation of Neutral Connection in Above Grade Pedestal
UX5 Sectionalizing Pedestal Grounding
UX7 Location Methods for Below Grade Enclosure
UX8 Temporary Primary or Secondary Cable Termination for Future Use
UX11 Connection of Terminator/Arrester to Overhead Line
Attachment B
Attachment B
Construction Drawings
| Viewing Instructions |
| Cover |
| Title Page |
| Table of Contents |
| Specifications |
| Index of Drawings |
| UA |
| UA1 |
| UA2 |
| UA3 |
| UB |
| UB1 |
| UB2 |
| UB3 |
| UB4 |
| UC |
| UC1 |
| UC2 |
| UC2-1 |
| UC2-2 |
| UC5-1 |
| UC6-1 |
| UG |
| UG6, UG6B |
| UG7, UG7B |
| UG17, UG17B |
| UG17-2, UG17-2B |
| UG17-3, UG17-3B |
| UJ1, UJ2 |
| UK |
| UK5 |
| UK6 |
| UM |
| UM1-5C, UM1-5NC |
| UM1-6C |
| UM1-7C, UM1-7NC |
| UM3-14 |
| UM3-44, UM3-45 |
| UM3-46 |
| UM3E |
| UM3E-1, UM3E-2 |
| UM3E-3 |
| UM5 |
| UM5-6, UM5-6A |
| UM6 |
| Page 1 |
| Page 2 |
| Page 3 |
| Page 4 |
| Page 5 |
| Page 6 |
| Page 7 |
| Page 8 |
| UM7-1 |
| UM8 |
| UM8-2 |
| UM8-3, UM8-3A |
| UMB-4, UMB-4A |
| UM8-5 |
| UM8-6 |
| UM8-7 |
| UM9-2 |
| UM12 |
| UM27-1 |
| UM27-2 |
| UM27-3 |
| UM28 |
| UM33 |
| UM48-1 |
| UM48-2 |
| UM48-3 |
| UM48-4 |
| UM48-5 |
| UM48-8 |
| UR2 - UR2-2 |
| UR2-3 - UR2-5 |
| UR2-NT, UR2-ST |
| UX1 |
| UX2 |
| UX3 |
| UX4 |
| UX5 |
| UX7 |
| UX8 |
| UX11 |
File details come from the government source that posted it. Updated .