MPEI Line Construction Standards 2024.pdf

CONSTRUCTION DRAWINGS

FOR

24.9/14.4 KV OVERHEAD LINE CONSTRUCTION

1/0, 4/0 & 477 ACSR CONDUCTORS

AND

24.9/14.4 KV UNDERGROUND LINE CONSTRUCTION

1/0, 4/0 & 500 MCM AL CABLE

Mountain Parks Electric, Inc.

Granby, Colorado

Updated April 2024

Mountain Parks Electric, Inc. Construction Standards Table of Contents – Section I – General Documents

MPEI Construction Standards – April 2023

Introduction

General Distribution Line Construction Specifications

25kV System and Equipment Grounding Standards

System Phasing Standards

Maximum Secondary Fault Current

MPEI Line Transformer Taps – General Voltage Boost

MPEI Introduction Dated March 2011 Page 1of 1

Mountain Parks Electric, Inc. (MPEI) Introduction

OVERHEAD SECTION

These drawings and specifications have been developed to provide Mountain Parks Electric, Inc. (MPEI) with standards for the construction of their 24.9/14.4 kV overhead electric distribution lines and associated equipment and construction assembly units. The conductors included in this design are 1/0 ACSR (6/1 strand) “Raven”, 4/0 ACSR (6/1 strand) “Penguin” and 477 ACSR (18/1 strand) “Pelican”.

Please note the following items.

1. Each section contains an index of drawings, design and construction notes (when applicable), and construction assembly drawings.

2. Single-phase construction drawings apply for 1/0 ACSR. Three-phase construction drawings apply for 1/0 ACSR, 4/0 ACSR and 477 ACSR. Two-phase construction drawings are for retirement of direct replacement only.

3. Design parameters are included on the construction drawings. These define loading and angle limits for which the assemblies have been designed. The 2007 National Electrical Safety Code (C2) (NESC) overload and strength factors have been applied to the design parameters.

4. Construction “guide” drawings have been included that show the configuration and spacing of more than one assembly on a structure.

5. The drawings in this document were prepared using the latest edition of Specifications and Drawings for 24.9/14.4 kV Line Construction, RUS Bulletin 1728F-803 (D-803) December 1998 as a base. The RUS drawings were revised to reflect MPEI’s standard title block, design parameters, materials, etc. The assembly numbers used in RUS Bulletin 1728F-803 were replaced with the “old” REA numbering convention used in the preceding Bulletin 50-5.

UNDERGROUND SECTION

These drawings and specifications have been developed to provide Mountain Parks Electric, Inc. (MPEI) with standards for the construction of their 24.9/14.4 kV underground electric distribution lines and associated equipment and construction assembly units. The cables included in this design are U-1/0, U4/0, and U-500. Please note the following items:

1. Each section contains an index of drawings, design and construction notes (when applicable), and construction assembly drawings.

2. The drawings in this document were prepared using the latest edition of Specifications and Drawings for Underground Electric Distribution, RUS Bulletin 1728F-806 (D-806) June 2000 as a base. The RUS drawings were revised to reflect MPEI’s standard title block, design parameters, materials, etc.

MPEI General Distribution Line Construction Specifications Page 1 of 6

General Distribution Line Construction Specifications

April 2023

1. Workmanship: All construction work shall be done in a safe, thorough, and workmanlike manner in accordance with the staking sheets, plans and specifications, and the construction drawings.

2. Billing:

2.1 All invoices shall show: the units, the quantity, and the unit price.

2.2 MPEI shall complete change order forms for all change orders before they are built. A change order is not valid unless it is signed by an MPEI employee.

2.3 Contractor is required to maintain a clean set of red-line staking sheets including the PVID number for each station. Contractor shall submit the red-line staking sheets to MPEI within one week after de-mobilizing from the project. All MPEI Equipment Installed Forms filled out for equipment exchanges and Pole Release Forms executed by the people receiving any retired poles must be turned in with the staking sheets.

2.4 Costs for material handling, temporary supplies, disposal of removed materials, and similar other associated work, shall be included in the unit labor prices. All changes in contract payment amounts shall be calculated using the bid unit prices and actual quantities installed.

All costs associated with maintaining service to MPEI’s customers/members, including work on energized lines and temporary work, shall be included as part of the unit prices.

3. Damage Prevention: Contractor shall take all steps necessary to prevent damage or interference with existing power lines, communication facilities, roadways, waterways, buried cables, pipelines, and other facilities adjacent to or crossing the project right-of-way.

4. Compliance with NESC, OSHA, federal, state, county, & local regulations:

Contractor shall comply with all of the following requirements; in the event of conflicts, the more stringent safety requirement shall prevail.

4.1 ANSI C2-2002 or latest revision, “National Electrical Safety Code (NESC).”

4.2 All applicable Occupational Safety and Health Administration (OSHA) rules and regulations, including OSHA Standards 29 CFR 1910 and 29 CFR 1926.

4.3 All other applicable federal, state, county, & local regulations.

4.4 The safety procedures and work standards of the latest edition of the APPA Safety Manual for electric utilities.

5. Referenced Standards: the following standards and specifications are included by reference:

5.1 MPEI Overhead Distribution Line Construction Standards, Dated April 2023 and associated drawings.

5.2 MPEI Underground Distribution Line Construction Standards, Dated April 2023 and associated drawings.

5.3 USDA RUS Bulletin 1728F-803, “Specifications and Drawings for 24.9/14.4 kV Line

Construction”, December 1998 and older unit designations found in REA Form 803 (Rev. Sept.

1969).

5.4 USDA RUS Bulletin 1728F-806 (D-806), “Specifications and Drawings for Underground Electric Distribution”, June 2000. Lines and attached MPEI Drawings/Maps.

MPEI General Distribution Line Construction Specifications Page 2 of 6

5.5 Where conflicts occur with MPEI specifications/drawings and RUS, the MPEI standards shall prevail.

6. Construction Staging Area:

6.1 MPEI shall make arrangements with a property owner for pole delivery and material storage.

Contractor is responsible for making necessary arrangements for its use of the property. In some cases, a federal agency cultural resource inventory may need to be performed on the staging area before Contractor can use the property.

6.2 Contractor shall be responsible for restoring the Staging Area, as close as practical, to the pre-construction condition and to the property owner’s satisfaction, including removing any pole racks and all remaining construction materials, and seeding and mulching if necessary.

7. Energized Lines

7.1 In order to maintain service to customers/members, construction work to rebuild existing lines including attachments to existing poles and line changes is to be performed with the line energized. Contractor must provide personnel qualified to work on energized lines.

7.2 Contractor needs to notify the District Operations Superintendent of all outages. Contractor may be required to provide another option such as a generator.

7.3 Customers/members shall be notified 24 hrs in advance of a scheduled outage. If the customer/member cannot be reached by phone or in person, Contractor shall hang a door notice.

7.4 All switching shall be performed by MPEI during normal working hours between 7:00 a.m. and 5:30 p.m., Monday through Thursday.

7.5 Contractor shall notify MPEI of any switching needs a minimum of five (5) working days prior to when switching is to be performed.

8. Material Handling and Storage:

8.1 Contractor shall be responsible for all the major and minor materials that have been issued to them for the project. Contractor shall exercise care in the handling of all major and minor material. Contractor shall not install any material found to be defective or damaged.

8.2 Contractor shall furnish the necessary equipment to load and haul to the job-site all material furnished by MPEI. Contractor shall bear the cost of all handling, such as, loading, hauling, and unloading.

8.3 Contractor shall furnish all materials and supplies to be used temporarily during construction, e.g. timbers for material blocking, rags, cleaners, etc. Costs for such temporary supplies shall be included in Contractor’s unit labor price.

8.4 Contractor shall properly dispose of all removed materials, including salvaged scrap metals, with the exception of used wood poles and crossarms that may be committed to property owners along the line route by MPEI staff. Used transformers, reclosers, sectionalizers, and other items specifically identified by the District Operations Superintendent are to be returned to MPEI’s Granby warehouse.

8.5 If framing members (crossarms, bracing, and other) are stored after delivery, they shall be arranged with care and placed on wood blocking at least four inches above ground to prevent contact with standing water or the ground and to prevent crushing. No pole will have an unsupported length greater than 20’-0”. The blocking shall be provided by the Contractor and included in the unit prices.

MPEI General Distribution Line Construction Specifications Page 3 of 6

8.6 Material returned to MPEI by Contractor at the completion of the project shall be neat and orderly, undamaged, and in its original packaging.

8.7 Materials can be picked up at the MPEI Granby warehouse between 9:00 AM and 5:00 PM Monday through Friday.

9.0 Work Week and Daily Schedule:

9.1 Contractors shall work a maximum of 10-hour days with a schedule coordinated with MPEI’s inspector for a normal 40-hour week. Normal hours of work shall be 7:00 AM to 5:30 PM, Monday through Friday. MPEI may allow different work hours, or longer work weeks at its discretion.

9.2 The Granby warehouse is open 9:00 a.m. to 5:00 p.m. Monday through Friday. Contractors must coordinate with the warehouse in advance to pick up materials.

9.3 Times for allowable operations stated in any Town permit shall be followed.

10. Communications & Contact Capabilities: Contractor shall provide cellular telephone for contacting his job superintendent as needed; these numbers shall be furnished to the MPEI Representative.

MPEI shall provide the Contractor’s job superintendent with a mobile radio for use during construction to communicate with MPEI.

11. Safety & Health:

11.1 Contractor shall conduct a safety and health program and take all reasonable precautions to protect the safety and health of employees and members of the public and to prevent damage to public and private property. Contractors shall not allow any employee whether directly employed or employed through subcontract or on-site supply contract, to work in surroundings or under working conditions which are unsanitary, hazardous, or dangerous to their health or safety.

11.2 Conflict in Requirements – If there is a conflict between the requirements of these specifications and applicable federal, state, or local safety, health, or industrial regulations or code, the more stringent requirements shall prevail.

11.3 OSHA Compliance – Comply with the latest effective Occupational Safety and Health Administration (OSHA) Standards 29 CFR 1910 and 29 CFR 1926. Contractor shall keep a copy of the OSHA standards at the jobsite. Certain OSHA standards have been referenced for emphasis. All OSHA standards shall apply, whether referenced or not.

11.4 Roads – Traffic control shall be the responsibility of Contractor. Roads subject to interference by the work shall be kept open without unreasonable delays or suitable detours shall be provided and maintained. Protection of the public shall be provided as required by OSHA 1926, Subpart G, “Signs, Signals, and Barricades,” and as required by the public agency having law enforcement jurisdiction for the roadway.

11.5 Employees shall be physically qualified to perform their assigned duties. Employees shall not work while their ability or alertness is impaired because of fatigue, illness, medications, drugs or alcohol, or any other reason that may expose them or others to injury.

11.6 Contractor shall put nearest upstream recloser on one-shot (non-reclose) prior to starting any energized line work. Contractor shall notify the District Operations Superintendent or designated MPEI personnel when changing the one-shot setting. At the end of work each day, Contractor shall return the reclosing feature to automatic.

11.7 MPEI may supply reclosers for Contractor’s protection during construction. Contractor is responsible for the cost of installing and removing these reclosers.

MPEI General Distribution Line Construction Specifications Page 4 of 6

12. Fire Prevention:

12.1 Fire Prevention and Suppression Plan (FPSP) will be established by the Contractor to prevent project-related wildfires within the project area and to initiate prompt, aggressive action to suppress any wildfires that may occur within the project area during the construction of the distribution line. The FPSP Plan will be detailed by the Contractor to all of the project employees prior to beginning construction and is subject to review by the MPEI Representative.

12.2 Contractor will be required to maintain fire suppression tools, to provide a list of people and equipment available for fire suppression, and to initiate aggressive fire suppression measures. Should any individual employed by Contractor become aware of a wildfire within the project area, said individual will immediately notify the Project Superintendent and the appropriate authority. Telephone numbers and notification procedures will be included in the Contractor’s FPSP.

12.3 Contractor’s Project Superintendent, or his designated representative, will act as Fire Coordinator for the Contractor and will be responsible for supervising the implementation of fire precaution measures and for directing fire suppression actions.

12.4 Contractor will take the following measures to prevent wildfires:

12.4.1 Welding will be accomplished in designated construction areas only. When welding is done at structure sites and along the project, precautions will be taken to prevent fires from starting as a result of welding. Such precautions will include use of a mat to catch welding sparks, or removal of combustible material for a distance of at least 10 feet around the welding area. A chemical pressurized fire extinguisher of at least 5 pounds capacity and a shovel will be kept with each welder.

12.4.2 Each gasoline power saw will be equipped with a screen-type spark arrestor recommended by the manufacturer. Gas and oil will be carried only in approved metal safety cans. Saw operators shall check closely around the cuts of logs, felled or bucked, particularly in the vicinity of cuts, to make certain a fire has not started.

A shovel and fire extinguisher, of at least 8-ounce capacity, will be with each power saw operator at all times.

12.4.3 A muffler or spark arrestor satisfactory to the Engineer will be maintained on the exhausts of all trucks and tractors or other internal combustion engines used on the project.

12.4.4 Used and discarded oil filters, cartridges, and oily rags or waste will be removed promptly from the project area and disposed of properly. Glass jugs or bottles will not be used to store flammable materials.

12.4.5 Special care will be taken to prevent fires when refueling equipment. Equipment will be moved to an area of mineral soil before refueling. Fuel trucks will have a large extinguisher charged with necessary chemical to control electrical and gas fires – minimum size 35 pounds capacity with 4 B.C. or higher rating.

12.4.6 Each vehicle operated on the project will have the minimum following tools:

12.4.6.1 One (1) round pointed shovel (0 or larger).

12.4.6.2 One (1) 5 pound capacity chemical pressurized fire extinguisher.

13. Water Control: As required Contractor shall control all operations in such a manner that drainage from the area of activities will not cause the water quality of the nearby principal drainages to exceed the permitted limits of turbidity and other pollution defining criteria as specified by the

MPEI General Distribution Line Construction Specifications Page 5 of 6

Water Quality Control Commission of Colorado. Contractor shall subcontract with a qualified storm water management firm to develop a plan that meets both state and federal requirements and shall implement the plan accordingly.

14. Right-of-Way

14.1 Contractor shall communicate with property owners before performing any construction on private property.

14.2 Contractor shall be responsible for making necessary arrangements with the property owners to access their property and shall restore any or all such property, as close as practical, to the pre-construction condition.

14.3 If damage to any hay meadows will occur with regular trucks, Contractor is required to use a low impact track machine. There shall be no vehicle access until after the hay meadows are harvested.

14.4 Contractor is required to stay in communication with all hay meadow property owners and get permission for access, construction, cable pulling, retirement, or any activity that would affect the hay meadows.

14.5 Contractor is responsible for dealing with any disputes between the property owner(s) and Contractor. MPEI will be informed of the dispute and what corrections are being made.

14.6 Contractor shall be responsible for removing any pole racks and all remaining construction materials including cleaning out the supply trailer and notifying the warehouse they no longer need the trailer upon completion of the project.

15. Right-of-Way Clearing (Primary Lines)

15.1 R20, R30 or R120: The unit is 1,000 feet in length and 20, 30 or 120 feet in width (to be measured 10, 15, or 60 feet on each side of the pole line) of actual clearing of right-of-way.

This includes clearing of underbrush, tree removal, and such tree trimming as is required so that the right-of-way, except for tree stumps which shall not exceed 0.5 feet in height, shall be clear from the ground up on one side of the line of poles carrying primary conductors of the width specified. However, low growing shrubs, which will not interfere with the operation or maintenance of the line, shall be left undisturbed if so directed by the MPEI Representative. Slash may be chipped and blown on the right-of-way if so specified. This unit does not include clearing or trimming associated with secondary line or services which is included with conductor units. The segmental length of actual clearing shall be measured in a straight line parallel to the centerline of the line using the maximum dimension of foliage cleared and projected to the ground line. All trees and underbrush across this width of the right-of-way shall be considered to be grouped together as a single length in measuring the total length of clearing. Spaces along the right-of-way in which no trees are to be removed or trimmed or underbrush cleared shall be omitted from the total measurement. All length thus arrived at, added together and divided by 1,000, shall give the number of 1,000-foot R20, R30 or R120 units of clearing. This unit includes the removal or topping, at the option of the Contractor, of danger trees outside of the right-of-way when so designated by the Engineer.

(Danger trees are defined as dead or leaning trees which, in falling, will affect the operation of the line.) Contractor shall not remove or trim shade, fruit, or ornamental trees unless so directed by the MPEI Representative.

15.2 The property owner’s written permission shall be received prior to cutting trees outside of the right-of-way. Trees fronting each side of the right-of-way shall be trimmed symmetrically

MPEI General Distribution Line Construction Specifications Page 6 of 6 unless otherwise specified. Dead trees beyond the right-of-way which would strike the line in falling shall be removed. Leaning trees beyond the right-of-way which would strike the line in falling and which would require topping if not removed, shall either be removed or topped, except that shade, fruit, or ornamental trees shall be trimmed and not removed, unless otherwise authorized.

15.3 Unless R20, R30 or R120 clearing units are specified, it is expected that only minor, select clearing will be required to maintain safe clearance for hot work. The cost of trimming and other clearing requirements is to be included in the pole or pole top assembly units as deemed appropriate by Contractor. If Contractor expects more than minor topping or removal will be required in a location, Contractor shall notify the MPEI Representative. The MPEI Representative may need to notify property owners prior to the clearing work being accomplished.

MPEI 25kV System and Equipment Grounding.doc Page 1 of 3

25kV System and Equipment Grounding

March 2011

1. Size of Grounding Electrode Conductor A bare #6 copper wire is the minimum size of grounding conductor to be used from earth grounding electrode (ground rod or equivalent electrode) to MPEI’s OH system neutral conductor (up to a maximum 477 ACSR neutral size based on NESC 93C2 requirement for multi-grounded system grounding conductors having at least 20% of the ampacity rating of the conductors to which connected). A bare #6 CU is also minimum size to be installed from earth grounding electrode to an underground primary circuit neutral (500 kcmil AL cables and smaller).

2. Size of Equipment Tap and Grounding Conductor The following table provides the normal size OH primary tap conductors or UG cables sizes used to connect various types of equipment and the appropriate size of conductor to be used to connect tank/ground terminals to the system neutral conductor.

CAUTION: These ground conductor sizes are adequate for fault current experienced during equipment failure but may burn open in the event a fallen primary conductor lands on a tank (resulting in an energized tank), or due to lightning backflash from a phase conductor to the pole grounding conductor on static shielded lines. Safe approach distances and energized work practices shall be followed during work whenever grounding conductors may have melted open.

Type of OH/UG/PD Equipment OH (Tap) Conductor Size or

UG Primary Cable Size Minimum Equipment Grounding Conductor Size (to System Neutral)

OH Arrester #6CU (600V INS) #6CU (Bare) OH Transformer/Capacitor Bank #4CU (600V INS) #4CU (Bare) or loop #6CU OH/Padmount Recloser (140-amp) #4CU (600V INS) #4CU (Bare) or loop #6CU OH Primary Meter (150-amp) #4CU (600V INS) #4CU (Bare) or loop #6CU OH Switch 600-amp GO (INS jumpers if metal base/rod):

on #1/0 ACSR (or smaller) line on #4/0 ACSR line on 477 kcmil line (prefer insulated base & insulated section in OH operating mechanism)

#2CU (600V INS) or 1/0ACSR #1/0CU (600V INS) or 4/0ACSR 250 kcmil CU (600V INS) or 500 kcmil AL (600V INS) or

477ACSR

#2CU (Bare) or loop #6CU #1/0CU (Bare) or loop

#4CU

#2/0CU (Bare) or loop

#2CU

Riser Cables (#1/0 AL 1PH & 3PH) #4CU (600V INS) #4CU (Bare) or loop #6CU Riser Cables (#4/0 AL) #1/0CU (600V INS) #1/0CU (Bare) or loop

#2CU

Riser Cables (500 kcmil AL) #2/0CU (600V INS) #2/0CU (Bare) or loop

#1/0CU

Padmount 1PH 200-amp Equipment #1/0AL (25kV cable) #2CU (Bare) or loop #4CU Padmount 3PH 200-amp Equipment #1/0AL (25kV cable) #2CU (Bare) or loop #4CU Padmount Primary Meter (200-amp) #1/0AL (25kV cable) #2CU (Bare) or loop #4CU Padmount 3PH 600-amp Equipment 500 kcmil AL (25kV cable) or other cable sizes #4/0CU (Bare) or loop

#1/0CU

The above sizing continues system neutrals at cable riser poles as well as limits temperature rise to the 250C limit of compressive/mechanical connectors for MPEI’s primary protective practices (including automatic reclosing followed by one manual reclose, but not necessarily for worst case feeder breaker backup protection fault clearing times).

MPEI 25kV System and Equipment Grounding.doc Page 2 of 3

3. Size of Pole Ground Conductor from Overhead Ground Wire (OGW or Static Neutral) to Primary Equipment Pole ground conductor between overhead ground wire (static neutral) & primary equipment installed below should be at least #4 copper (or minimum equivalent to primary jumper size) to handle fault current duty during equipment failures. When no primary equipment is installed at a location, the minimum pole ground size is #6 copper.

4. System & Equipment Grounds

4.1 Install at least one ground rod or alternate electrode on all 25kV multi-grounded 4-wire system and equipment grounds.

4.2 MPEI requires equipment grounds be a looped conductor with two fault current return paths between the equipment and system neutral conductor (with two separate crimps at an overhead neutral conductor).

4.3 Besides grounds at every equipment site, NESC requires at least 4 grounds in each mile of line for multi-grounded 4-wire systems (MPEI 25kV), not counting those at service entrances.

5. Overhead Pole Grounding

5.1 Due to rocky conditions and high resistivity soil, MPEI requires a ground rod at each pole).

5.2 Locate the pole ground on the same side as the neutral conductor and in the quadrant opposite from the pole climbing space.

5.3 Drive ground rod to a depth at least 12” below grade.

5.4 Keep a minimum 2” clearance between ground conductors and unbonded hardware to avoid

RFI/TVI.

5.5 Route pole grounds between primary level and overhead ground wire (static neutral) on the side of the pole opposite from the center phases and use insulated 600-volt wire for wildlife protection.

Approximate Length of Wire & Staples Required for 25kV Circuits (Without OGW)

Pole Size Ground Wire to Neutral Approx. No. of Staples 35’ 30 ft. 25 40’ 35 ft. 28 45’ 40 ft. 31 50’ 45 ft. 34

Add 10 ft. of ground wire and 12 staples for any OGW; add 10 ft. of ground wire for second ground rod.

6. Padmount Equipment Grounding Standard grounding connection at a padmount transformer, sector cabinet, switch, or similar equipment is a loop of bare copper sized per the table in paragraph 2 above between primary cable neutrals and two ground lugs on the equipment, For larger cables where a ground loop of #1/0 copper is required, the grounding electrode conductor may be a minimum #6 copper crimped to the ground loop.

7. Bond to Metal Communications Pedestals A ground conductor bond minimum #6 copper is required between padmount metal-enclosed power equipment and any metal communications pedestals within 6 feet or less.

8. Alternate Earth Grounding Electrode An alternate electrode to a driven ground rod is a buried counterpoise wire, at least 100 feet in length and a minimum #6 bare copper buried 18-30” deep in either a straight line or in a star pattern radiating from the pole or vault. This is typically used in rocky areas where driving a ground rod is impossible. Pole butt plates do not count as an equivalent of one electrode.

MPEI 25kV System and Equipment Grounding.doc Page 3 of 3

9. Miscellaneous Stock Grounding Materials Ground rod, copper-clad steel, 5/8” x 8’ Ground rod clamp (5/8” rod to #6 solid - #1 stranded CU) Staples, ground wire, 1.5”

10. Primary Overhead and Underground Cable Circuit Neutral Sizes

Phase Conductor Size No. of Phases

Neutral Conductor Size

Equivalent Neutral Size Min MPEI Neutral Size Specified (Jumpers)

#4 ACSR 1-Phase #4 ACSR #6CU #6CU #2 ACSR 1-Phase #2 ACSR #4CU or loop #6CU #4CU or loop #6CU #1/0 ACSR 1-Phase #1/0 ACSR #2CU or loop #4CU #4CU or loop #6CU #1/0 UD Cable 1-Phase (w 1/3 N Flat Straps)

#6CU (approx) #6CU or loop #6CU #6CU or loop #6CU

#1/0 UD Full N Cable 1-Phase (w Full N Concentric Wires)

#2CU (approx) #2CU or loop #4CU #4CU or loop #6CU

#4 ACSR 3-Phase #4 ACSR #6CU #6CU #2 ACSR 3-Phase #2 ACSR #4CU or loop #6CU #4CU or loop #6CU #1/0 ACSR 3-Phase #1/0 ACSR #2CU or loop #4CU #4CU or loop #6CU #4/0 ACSR 3-Phase #1/0 ACSR #2CU or loop #4CU #4CU or loop #6CU 477 kcmil ACSR 3-Phase #4/0 ACSR #2/0CU or loop #2CU #2/0CU or loop #2CU #1/0 AL UD Cable 3-Phase (w 1/3 N Flat Straps)

#2CU (approx) #2CU or loop #4CU #2CU or loop #4CU

#1/0 AL UD Cable 3-Phase (w Full N Concentric Wires)

#4/0CU (approx) #4/0CU or loop #1/0CU #2CU or loop #4CU

#4/0 AL UD Cables 3-Phase #2/0CU (approx) #2/0CU or loop #2CU #2/0CU or loop #2CU 500 kcmil AL UD Cable 3-Phase (w 1/6 N Flat Straps)

#3/0CU (approx) #3/0CU or loop #1/0

CU

#4/0CU or loop #1/0CU

500 kcmil AL UD Cable 3-Phase (w 1/3 N Concentric Wires)

300CU (approx) 300CU or loop #3/0CU #4/0CU or loop #1/0CU

Min %Z Amps Min %Z Amps 10 1.9% 4,400 1.4% 3,000 15 1.9% 6,600 1.4 4,500 25 1.9% 11,000 1.4 7,400

37.5 1.9% 16,400 1.4 11,200 50 1.9% 21,900 1.4 14,900 75 1.9% 32,900 1.4 22,300 100 1.9% 43,900 1.4 29,800 167 2.5% 55,700 1.4 49,700 250 2.5% 83,300 1.4 74,400

Min %Z Amps Min %Z Amps 45 1.2% 10,400 1.2% 4,500 75 1.2% 17,400 1.2% 7,500 150 1.2% 34,700 1.2% 15,000 300 1.4% 59,500 1.4% 25,800 500 2.0% 69,400 1.4% 43,000 750 4.78% 43,600 4.78% 18,900 1000 4.78% 58,100 4.78% 25,200 1500 4.78% 37,800 2000 4.78% 50,400 2500 4.78% 62,900

SINGLE PHASE

TRANSFORMER

SIZE (kVA) #4 #2 1/0 4/0 350 500

10 0 0 0 0 0 0 15 0 0 0 0 0 0 25 5 5 5 10 10 15

37.5 10 10 15 30 40 55 50 10 20 30 50 65 90 75 20 30 45 80 110 145 100 20 35 50 95 130 175 167 25 40 60 110 150 210 250 25 45 65 120 180 225

120/208 Volt Secondary

240 Volt Faults

277/480 Volt Secondary Three Phase Padmount or Overhead Wye-Wye Banks

MINIMUM LENGTH OF OVERHEAD OR UNDERGROUND

600 VOLT ALUMINUM CABLE

FOR STANDARD CONDUCTOR SIZES

Minimum Lengeth of Secondary Aluminum to Limit Seconadry Fault Curtent to 10,000 Amps

120 Volt Faults

Mountain Parks Electric, Inc.

MAXIMUM AVAILABLE SECONDARY FAULT CURRENTS

Approximate Minimum Length of Secondary Cable (Triplex or Twin Concentric) to Limit Available 120 and 240 Volt Fault Current to 10,000 amps rms symmetrical

(interrupting rating of most common molded case breakers)

Size (kVA)

3-Phase (kVA)

Single Phase Padmount or Overhead, 120/240 Volt Secondary

MPEI Maximum Available Secondary Fault Currents Dated April 2023

1-PH Tap Volts

3-PH Tap Volts

% of 14400 or of 24940 ratio to 120

PU Boost (14400 Base)

Volts Boost (120V Base)

15120 26187 105.0% 126.0 0.0954 -5.7 14760 25563 102.5% 123.0 0.9756 -2.9

MPEI tap used std 14400 24940 100.0% 120.0 1.0000 0.0 14040 24316 97.5% 117.0 1.0257 3.1 13680 23693 95.0% 114.0 1.0526 6.3

1-PH Tap Volts

3-PH Tap Volts % of 14400 ratio to 120

PU Boost (14400 Base)

Volts Boost (120V Base)

MPEI tap used std 14400 NA 100.0% 120 1.0000 0

13800 NA 95.8% 115 1.0435 5.2

13200 NA 91.7% 110 1.0909 10.9

12870 NA 89.4% 107.25 1.1189 14.3

12540 NA 87.1% 104.5 1.1483 17.8

1-PH Tap Volts

3-PH Tap Volts % of 24940 ratio to 208

PU Boost (14400 Base)

Volts Boost (120V Base)

MPEI tap used std NA 24940 100.0% 119.9 1.0000 0.0

NA 24315 97.5% 116.9 1.0257 3.1

NA 23695 95.0% 113.9 1.0525 6.3

NA 23070 92.5% 110.9 1.0811 9.7

NA 22445 90.0% 107.9 1.1112 13.3

(e.g. Pauwels 1000 kVA at Threee Lake Treatment Plant)

Mountain Parks Electric, Inc (MPEI) Line Transformer Tap - General Voltage Boost

MPEI Distribution Line Transformer Taps as of 2013 New 1-PH Polemount & 1-PH/3PH Padmount Units

Older 1-PH Polemount & Padmount Units

Old 3-PH Padmount Units

Line Transformer Tap - General Voltage Boost Date April 2023

MPEI Overhead Construction Standard Drawings Table of Contents - Section II - Overhead Construction

Overhead Distribution Line Construction Specifications Jan-2017 Apr-2015

VA1-M Single Support – Tangent to Very Small Angle Mar-2011 VA1U-M Single Support – Tangent to Very Small Angles w/ upset Mar-2011 VA1-2-M Double Support – Tangent to Small Angle (Top of Hill) Mar-2011 VA2-M Double Support - Small to Medium Angle Mar-2011 VA3-M Suspension Angle - Medium to Large Angle May-2013 VA4-M Corner Angle - Vertical Construction Mar-2011 VA5-M Single Deadend - Vertical Construction Mar-2011 VA5-1-M Single Phase Tap from Single Phase Line Jan-2017 VA5-2-M Single Phase Tap from Three Phase Line Jan-2017 VA5-3-M Single Phase Tap without Pole Top Insulator Mar-2011 VA5-3A-M Single Phase Tap on Crossarm Assembly May-2013 VA5-4-M Single Phase Tap with Pole Top Insulator May-2013 VA6-M Double Deadend – Straight Mar-2011 VA6-1-M Double Deadend – Feed Through Mar-2011 VA6-2-M Single Phase 2-Pole Structure Double Deadend Assembly May-2008 VA7, VA7-1 Single Deadend - Crossarm Construction (Retire Only) Dec-2004 VA7-F-M Single Deadend – Fiberglass Crossarm Apr-2015 VA7-HB-M Single Deadend – Crossarm Assembly Mar-2011 VA8-M Double Deadend - Crossarm Construction Mar-2011 VA8-F-M Double Deadend – 10’ Fiberglass Crossarm Apr-2015 VA8-HB-M Double Deadend – Crossarm Assembly Mar-2011 VA9-M Single Support - Crossarm Construction - Tangent to Very Small Angle Mar-2011 VA9-2-M Double Support - Crossarm Construction - Small to Medium Angle May-2013 VA9-2F-M Double Support – Fiberglass Crossarm – Small to Medium Angle Mar-2016 VA9F-M Single Support – Fiberglass Crossarm – Tangent to Very Small Angle Mar-2016

VB1, VB1A Single Support 0° to 5° Angle (Retire Only) Jan-2004 VB1-1, VB1-1A Double Support 0° to 5° Angle (Retire Only) Jan-2004 VB2 Double Support 5° to 30° Angle (Retire Only) Jan-2004 VB3, VB3A Vertical Construction 30° to 60° Angle (Retire Only) Jan-2004 VB4-1, VB4-1A Vertical Construction 60° to 90° Angle (Retire Only) Jan-2004 VB5-1, VB5-1A Single Deadend Vertical Construction (Retire Only) VB7, VB7-1 Single Deadend Crossarm Construction (Retire Only) Jan-2004 VB7-HB Single Deadend Crossarm Assembly (Retire Only) Jan-2004 VB8 Double Deadend Crossarm Construction (Retire Only) Jan-2004 VB9, VB9-2 Double Support Crossarm Construction (Retire Only) Jan-2004 VB9-1, VB9-3 Single Support Crossarm Construction (Retire Only) Jan-2004

VC1-M, VC1H-M Single Support – Tangent to Very Small Angle Mar-2011 VC1F-M Single Support – Tangent to Very Small Angle Fiberglass Crossarm Apr-2015

VC1S(DC)BT

Synthetic Side Post Construction - Double Circuit Long Weight Span 0° to 20° Angle (Retire Only) Jan-2004

VC1S(DC)F Synthetic Side Post Construction - Double Circuit 0° to 3° Angle (Retire Only) Jan-2004 VC1S(DC)T Synthetic Side Post Construction - Double Circuit 0° to 3° Angle (Retire Only) Jan-2004 VC1U-M, VC1UH-M Single Support Tangent to Very Small Angle Mar-2011 VC1UF-M Single Support Tangent to Very Small Angle Fiberglass Crossarms Jan-2017 VC1-2-M,VC1-2H-M Double Support Tangent to Very Small Angle, Top of Hill (Retire Only) May-2013

Pole Label Guide

Section A - SINGLE PHASE PRIMARY POLE TOP ASSEMBLY UNITS

Section B - TWO PHASE PRIMARY POLE-TOP ASSEMBLY UNITS

Section C - THREE-PHASE PRIMARY POLE-TOP ASSEMBLY UNITS

April 2023 1 of 6

VC2-M, VC2H-M Double Support - Small to Medium Angle Mar-2011 VC2-1 Double Support 10' Crossarms (Retire Only) Jan-2004 VC2-NP Narrow Profile Medium Angle Staggered Phases Apr-2015 VC2F-M Double Support – Small to Medium Angles Fiberglass Crossarms Jan-2017 VC2-2 Double Suupport 10' Crossarms, Large Conductor (Retire Only) Jan-2004 VC3-M Suspension Angle Medium to Large Angle Jan-2017 VC3-1-M Suspension Angle Small Angle (Retire Only) May-2013 VC3H Vertical Construction 10° to 45° Angle, Large Conductor (Retire Only) Jan-2004 VC3(DC)H Double Circuit 30° to 60° Angle (Retire Only) Jan-2004 VC4-M Corner Angle – Vertical Construction Mar-2011 VC5-M Single Deadend – Vertical Construction Mar-2011 VC5H, VC5HN Vertical Deaded (Retire Only) Jan-2004 VC5-1LP Vertical Construction Single Deadend, Large Conductors (Retire Only) Jan-2004 VC5-3 Vertical Construction Double Deadend, Large Conductors (Retire Only) Jan-2004 VC6-M Double Deadend - Vertical Construction Mar-2011 VC7, VC7-1 Single Deadend Crossarm Construction (Retire Only) Jan-2004 VC7-F-M Single Deadend – Fiberglass Crossarm Jan-2017 VC7-FN-M Single Deadend – Fiberglass Crossarm Neutral on Crossarm Jan-2017 VC7-F2-M 2-Pole H Structure – Single Deadend Assembly Fiberglass Crossarm Apr-2015 VC7-F3-M Three Phase Horizontal Tap Buckarm w/ Jumper – Fiberglass Apr-2015 VC7-H2-M 2-Pole H-Structure – Single Deadend Assembly Neutral on Crossarm (Retire Only) Apr-2015 VC7-HB-M Single Deadend - Crossarm Assembly Mar-2011 VC7-HB3-M Three Phase Horizontal Tap - Buckarm w/ Jumpers Apr-2015 VC7-HB-MG Single Deadend Crossarm Assembly Buckarms Guide May-2013 VC7-HBN-M Single Deadend – Crossarm Assembly Neutral on Arm Mar-2011

VC8-M, VC8H-M,

VC8-2-M, VC8-2H-M Double Deadend – Crossarm Construction Jan-2017

VC8-1 Double Deadend 10’ Crossarms (Retire Only) Jan-2004 VC8-1-M, VC8H-1-M Double Deadend Crossarm Construction, Neutral on Crossarm Jan-2017 VC8-F-M, VC8-2F-M Double Deadend – Fiberglass Crossarm Jan-2017 VC8-HB-M, VC8-2HB-M Double Deadend - Crossarm Assembly Mar-2011 VC8-F2-M 2-Pole H Structure Double Deadend Assembly Fiberglass Crossarm Apr-2015 VC8-FN-M Double Deadend – Fiberglass Cross Assembly, Neutral on Crossarm Jan-2017 VC8-H2-M 2-Pole H-Structure – Double Deadend Assembly, Neutral on Crossarm Apr-2015 VC8-HBN-M Double Deadend - Crossarm Assembly, Neutral on Crossarm Mar-2011 VC9 Double Support, Neutral on Crossarms (Retire Only) Jan-2004 VC9-1 Single Support, Neutral on Crossarms (Retire Only) Jan-2004 VC9-AA-M Alley Arm Tangent Framing Jan-2006 VC9F-1-M Single Support, Neutral on Crossarms Dec-2021 VCV-1Y3F-M Narrow Profile – Tangent or Very Small Angles May-2013 VCV-1Y3T-M Narrow Profile – Small Angle Mar-2011 VCV-1YF-M Narrow Profile – Tangent May-2013 VCV-1YT Narrow Profile Small Angle 0° to 10°Angle (Retire Only) Jan-2004 VOC1-2P Single Support Tangent to Very Small Angle Overhead Static Line (Retire Only) Jan-2006 VOC1-3P Double Support Small to Medium Angles Overhead Static Line (Retire Only) Jan-2006

Apr-2015 E1-2Fxx Insulated 10M Down Guy Jan-2017 E1-3Fx Insulated 20M Down Guy Jan-2017 E2-2Fx Insulated 10M Overhead Guy Apr-2015 E2-3Fx Insulated 20M Overhead Guy Apr-2015 E5-1, E5-2 Deadend Guy Crossarm Construction (Retire Only) Jan-2004 E7-2F-2 Insulated Four 10M Down Guy Vertical Construction Two Anchors Jan-2017

Design and Construction Notes for Guys Section E - GUYING ASSEMBLY UNITS

April 2023 2 of 6

E7-3F-2 Insulated Four 20M Down Guy – Vertical Construction Two Anchors Jan-2017 E7-3F-3 Insulated Four 20M Down Guy – Vertical Construction Three Anchors Jan-2017 E-CG Cattle Guard for Down Guy Mar-2015 E-RP, E-RP-1 Rub Post Mar-2011

Mar-2011 F1-3 to F1-7P Line Anchor Assemblies Mar-2011 F1-6S Double Helix Screw Anchor - 8" & 10" Helix Combination Mar-2011 F5-2 Rock Anchor Jan-2006 F-BK Bog Key Jan-2017

VG-Fuse Transformer Fusing Schedule May-2013 VG105 Single Phase CSP Transformer on Tangent or Deadend Pole Mar-2011 VG105G Transformer Installation Guide – Single Phase Pole Type Transformer Mar-2011

VG210 Two Phase Transformer Bank Open Wye – Open Delta 120/240 or 240/480 Volt Power Loads Apr-2015

VG210G Transformer Connection Guide Three-Phase Open-Wye Open Delta 120/240 Volt Power Loads Apr-2015

VG310 Three Trasformer Bank Undgrounded WYE Delta for 120/240 or 240/480 Volt (Retire Only) Jan-2006

VG310G Transformer Connection Guide Undergrounded Wye Center Tap Grounded Delta 120/240 Volt Power Loads (Retire Only) Apr-2015

VG 311 Three Phase Transformer Bank Underground WYE Primary Corner Grounded DELTA 3 Wire Secondary (Retire Only) Jan-2004

VG311G Transformer Connection Guild Undergrounded Wye Corner Grounded Delta 240 or 480 Volt Power Loads (Retire Only) Apr-2015

VG312 Three Phase Transformer Bank - Ground Wye Ground Wye 120/208 or 277/480 Volt Power Loads Apr-2015

VG312G-1 Transformer Connection Guide Grounded Wye-Grounded Wye 120/240 Volts Power Loads Apr-2015

VG312G-2 Transformer Connection Guide Grounded Wye – Grounded Wye 277/480 Volt Power Loads Apr-2015

VG312D Three Phase Transformer Bank on Deadend Grounded Wye-Grounded Wye 120/208 or 277/480 volt Apr-2015

J5 to J10 Secondary Assemblies May-2013

K10C, K11, K15C, K17 Service Assemblies Jan-2006

FCI-OH Faulted Circuit Indicator Apr-2015 M2-11 Grounding Assembly – Ground Rod Type Mar-2014 R20 Right of Way Clearing Guide - All Underground or Single Phase Overhead Feb-2009 R30 Right of Way Clearing Guide - Existing Overhead Three Phase Feb-2009 R120 Right of Way Clearing Guide - New Single or Three Phase Overhead Jan-2017 VM3-1 Disconnect Switches (VM3-1S, VM3-1SU, VM3-1C) Mar-2011

Section F - ANCHOR ASSEMBLY UNITS Design and Construction Notes for Anchoring

Section K - SERVICE ASSEMBLY UNITS

Section M - MISCELLANEOUS ASSEMBLY UNITS AND GUIDES

Section G - TRANSFORMER ASSEMBLY UNITS

Section J - SECONDARY ASSEMBLY UNITS

April 2023 3 of 6

VM3-3-M Three Sectionalizing Disconnect Switches Apr-2015 VM3-10A Oil Circuit Recloser with Bypass Cutout Mar-2011 VM3-10S Hydraulic Sectionalizer with Bypass Cutout Mar-2011 VM3-16 Group Operated Airbreak Switch (Switch Only) Apr-2015 VM3-16D Three Phase Diamondback Switch Mar-2022 VM3-16-1 Group Operated Airbreak Switch with Pole Top Assembly Apr-2015 VM3-16-V Group Operated Airbreak Switch Vertical Construction Apr-2015 VM3-20A Oil Circuit Recloser (Retire Only) Jan-2004 VM3-25A Three Reclosers with Bypass Switches Jun-2015 VM3-25S Three Hydraulic Sectionalizers with Bypass Switches Apr-2015 VM3-30 Three Phase Recloser with Bypass Switches Apr-2015 VM3-30V Three Phase Viper Recloser with Bypss Switches Mar-2022 VM3-MG Three Phase Switch and Recloser Crossarm Layout Guide Apr-2015 VM5-2 to 5 Miscellaneous Primary Assemblies Apr-2015 VM5-6 to 7 Miscellaneous Primary Assemblies May-2013 VM5-6G Arrester Installation Guide – Overhead Static Line Jan-2006

VM5-9, VM5-10,

VM5-9E, VM5-9TS Sectionalizing Cutouts & Protective Devices May-2022

VM5-9G Sectionalizing Cutouts - Installation Guide Mar-2011 VM5-13 to 17 Miscellaneous Primary Assemblies Mar-2011 VM5-19 to 23 Miscellaneous Primary Assemblies Apr-2015 VM7-1 One Step Voltage Regulator – Pole Mounted Apr-2015 VM7-3 Voltage Regulators Platform Mounted (Three Single-Stage) Apr-2015 VM9-13 Three Phase Capacitor Bank May-2013 VPG Raptor Protection Perch Guard Guide Jan-2017

May-2015 ADFO-1 Tangent to Small Angle Attachment May-2015 ADFO-2 Small to Medium Angle attachment May-2015 AFO-2B Small to Medium Angle on Horizontal Standoff Bracket May-2015 ADFO-4 Corner Angle Double Deadend Assembly May-2015 ADFO-5 Deadend Assembly May-2015 ADFO-6 Double Deadend May-2015 ADFO-Cable12 Cable 12 May-2015 ADFO-Splice Splice May-2015 ADFO-Storage Cable Storage May-2015 ADFO-U1 Overhead to Underground Riser May-2015 ADFO-UG1 Overhead to Underground Riser With Splice May-2015 ADFO-UG2 Pedestal Installation May-2015 ADFO-UG3 Vault Installation May-2015

P Poles Apr-2015 P-2 Pole Size Selection Table Apr-2015 M19 Crossarm Drilling Guide Jan-2006 M20-1R Pole Framing Guide Jan-2006 M20-NP Pole Framing Guide – Narrow Profile Apr-2015 P-ENFORCER Pole Enforcer Apr-2015 Pole Labeling Guide Apr-2015

ADSS Fiber Optic Assemblies

Section Q - METERING

Section O – FIBER OPTICS

Section P - POLES AND CROSSARMS

April 2023 4 of 6

VM8-10, VM8-10N Pole Metering Single Phase 120/240 Volts Jan-2017 VM8-XXX Meter Loop Assemblies Jan-2017 VQ4-1 Primary Metering Three-Phase 4-Wire Grounded Wye Jan-2006

UA1T Single Phase Cable Terminal Pole, Cutout on Bracket – Town Framing Mar-2011

UA1T-NP Single Phase Cable Terminal Pole, Cutout on Bracket – Town Framing – Narrow Profile May-2013

UA2T Single Phase Cable Terminal Pole – Reverse Feed – Town Framing Mar-2011 UA3T Single Phase Cable Terminal Pole, Cutout on Arm - Town Framing Mar-2011 UC2T Three Phase Cable Terminal Pole – 200 amp, Cutout on Arm - Town Framing Mar-2011

UC2T-NP Three Phase Cable Terminal Pole – 200 amp, Cutout on Arm - Town Framing - Narrow Profile Mar-2014

UC4T Three Phase Cable Terminal Pole – 600 amp – Town Framing Mar-2011

UC5T Three Phase Cable Terminal Pole – 600 amp with Disconnect Switches – Town Framing Mar-2011

VA1T-M Single Support Tangent to Very Small Angle – Town Framing (Retire Only) Mar-2011 VA1-2T-M Double Support – Tangent to Small Angle, Top of Hill – Town Framing (Retire Only) May-2013 VA1UT-M Single Support – Tangent to Very Small Angle w/Upset – Town Framing May-2013 VA2T-M Double Support – Small to Medium Angle – Town Framing May-2013 VA3T-M Suspension Angle – Medium to Large Angle – Town Framing May-2013 VA4T-M Corner Angle – Vertical Construction – Town Framing May-2013 VA5T-M Single Deadend Vertical Construction – Town Framing May-2013 VA5-1T-M Single Phase Tap from Single Phase Line – Town Framing May-2013 VA5-2T-M Single Phase Tap from Three Phase Line – Town Framing May-2013 VA5-3T-M Single Phase Tap without Pole Top Insulator - Town Framing May-2013 VA5-3AT-M Single Phase Tap on Hughes Brothers Crossarm Assembly – Town Framing May-2013 VA5-4T-M Single Phase Tap with Pole Top Insulator – Town Framing May-2013 VA6T-M Double Deadend Straight – Town Framing May-2013 VA6-1T-M Double Deadend Feed Through – Town Framing May-2013 VA7-FT-M Single Deadend 10’ Fiberglass Crossarm – Town Framing Apr-2015 VA7-HBT-M Single Deadend Crossarm Assembly – Town Framing (Retire Only) May-2013 VA8-FT-M Double Deadend 10’ Fiberglass Crossarm – Town Framing Apr-2015 VA8-HBT-M Double Deadend Crossarm Assembly – Town Framing (Retire Only) May-2013 VA8T-M Double Deadend Crossarm Construction – Town Framing May-2013 VA9T-M Single Support Crossarm Construction Tangent to Very Small Angle – Town Framing May-2013 VA9-2T-M Double Support Crossarm Construction Small to Medium Angle – Town Framing May-2013 VC1T-M, VC1HT-M Single Support Tangent to Very Small Angle – Town Framing (Retire Only) Mar-2011 VC1T-NP Narrow Profile Tangent or Very Small Angle Single Support on Bracket Apr-2015

VC1TS-NP Narrow Profile Tangent or Very Small Angle Single Support on Bracket Staggered Phases Apr-2015

VC1UT-M, VC1UHT-M Single Support Tangent to Very Small Angle– Town Framing May-2013

VC1-2T-M, VC1-2HT-M Double Support Tangent to Very Small Angle, Road/Rail Crossing & Top of Hill - Town Framing (Retire Only) May-2013

VC1UFT-M Single Support Tangent to Very Small Angle Fiberglass Crossarms - Town Framing Apr-2015 VC2T-NP Single Support Narrow Profile Tangent to Very Small Angle Apr-2015 VC2TS-NP Narrow Profile Small Angle Single Support on Bracket Staggered Phases Apr-2015 VC2T-M, VC2HT-M Double Support to Small to Medium Angles – Town Framing May-2013 VC2FT-M Double Support Small to Medium Angles Fiberglass Crossarms – Town Framing Apr-2015 VC2HT- NP Narrow Profile Medium Angle Apr-2015 VC2HTS-NP Narrow Profile Medium Angle Staggered Phases Apr-2015 VC3T-M Suspension Angle Medium to Large Angles – Town Framing Apr-2015 VC3-1T-M Suspension Angle Small Angle – Town Framing Mar-2011 VC4T-M Corner Angle Vertical Construction – Town Framing Apr-2015

Section T – Town Framing

April 2023 5 of 6

VC5T-M Corner Angle Vertical Construction – Town Framing Apr-2015 VC6T-M Double Deadend Vertical Construction – Town Framing Apr-2015 VC7-FT-M Single Deadend Fiberglass Crossarm Assembly – Town Framing Apr-2015 VC7-FNT-M Single Deadend Fiberglass Crossarm Assembly (Neutral on Crossarm)- Town Framing Apr-2015 VC7-HBT-M Single Deadend Crossarm Assembly – Town Framing May-2013 VC7-HBNT-M Single Deadend Crossarm Assembly, Neutral on Crossarm –Town Framing Mar-2011 VC7-HB3T-M Three Phase Horizontal Tap, Buckarm with Jumpers – Town Framing May-2013

VC7-F3T-M Three Phase Horizontal Tap, Buckarm with Jumpers Fiberglass Crossarm-Town Framing May-2013

VC8-FT-M, VC8-2FT-M Double Deadend Fiberglass Crossarm Assembly – Town Framing Apr-2015 VC8-FNT-M Double Deadend Fiberglass Crossarm, Neutral on Crossarm – Town Framing Apr-2015

VC8-HBT-M,

VC8-2HBT-M Double Deadend Crossarm Assembly – Town Framing May-2013

VC8-HBNT-M Single Deadend Crossarm Assembly, Neutral on Crossarm – Town Framing Mar-2011

VC8T-M, VC8-2T-M,

VC8HT-M, VC8-2HT-M Double Deadend Crossarm Assembly – Town Framing May-2013

VC9-AAT-M Alley Arm Tangent Framing – Town Framing Jun-2010 VG105T Single Phase CSP Transformer on Tangent of Deadend Pole –Town Framing May-2013

VG210T Two Transformer Bank Open Wye – Open Delta 120/240 or 240/480 Volt Power Loads – Town Framing Apr-2015

Two Transformer Bank Open Wye – Open Delta 120/240 or 240/480 Volt Power Loads – Town Framing – Narrow Profile

VG312T Three Transformer Bank Grounded Wye –Grounded Wye120/208 or 277/480 Volt Power Loads – Town Framing – Narrow Profile Apr-2015

VG312T-NP Three Transformer Bank Grounded Wye –Grounded Wye120/208 or 277/480 Volt Power Loads – Town Framing – Narrow Profile Apr-2015

VM3-10AT Oil Circuit Recloser with Bypass Cutout – Town Framing Mar-2011 VM3-10ST Hydraulic Sectionalizer with Bypass Cutout – Town Framing Mar-2011 VM3-25AT Three Reclosers with Bypass Switches – Town Framing Apr-2015 VM3-25ST Three Hydraulic Sectionalizers with Bypass Switches – Town Framing Apr-2015 VM3-30T Three Phase Recloser with Bypass Switches – Town Framing Apr-2015

W Conductor Tables Mar-2011 W-2 Primary Conductor Sag Tables May-2004 W-3 Multiplex Secondary Cable Full Tension Spans Aug-2007 W-4 Conductor Neutral Jumpers Mar-2011 NESC Clearances & MPEI Spacing to Communications Cables Equipment Mar-2012

Section W – CONDUCTORS

VG210T-NP Apr-2015

April 2023 6 of 6

MPEI Overhead Distribution Line Construction Specifications Page 1 of 9

Overhead Distribution Line Construction Specifications

Dated April 2023

1. Section II-Overhead Construction

1.1 OH Section A--Single Phase Primary Pole Top Construction Assembly Units: A pole top construction assembly unit generally consists of the insulator(s), crossarm(s), braces, and hardware, preformed ties, required to support the primary conductors, as indicated on the applicable drawing.

1.2 OH Section C-Three Phase Primary Pole Top Construction Assembly Units: A pole top construction assembly unit generally consists of the insulator(s), crossarm(s), braces, and hardware, preformed ties, required to support the primary conductors, as indicated on the applicable drawing.

1.3 OH Section E--Guying Construction Assembly Units: A guying construction assembly unit generally consists of the guy wire, guy marker, guy strain insulator (where necessary), hardware, and jumpers, as indicated on the applicable drawing.

1.4 OH Section F--Anchor Construction Assembly Units: An anchor…