SOW WYTD972007 RPR OH elec lines.docx

STATEMENT OF WORK

FOR

REPAIR OVERHEAD ELECTRICAL LINES

WYTD972007

AT

180TH FIGHTER WING

GENERAL PROJECT INFORMATION

PART I GENERAL July 9, 2020

1.01 SCOPE

Contractors to furnish all supervision, labor, materials, equipment, and supplies and other items of expense required to perform the work specified in this document in strict accordance with the specifications and drawings for this project and provide the government a complete and useable end product.

1.02 LOCATION

Site of the proposed work is at the Ohio Air National Guard Base, 180th Fighter Wing, 2660 S. Eber Road, Swanton, Ohio 43558-9645 (Adjacent to Toledo Express Airport).

1.03 SCOPE OF WORK:

A. Intent: Install new primary underground electrical power lines for the installation’s primary electrical service and remove the old overhead transmission lines as described further in this statement of work and the project drawings.

1. The following drawings are attached:

i. Existing Utility & Demo Plan – East

ii. Existing Utility & Demo Plan – West

iii. Electrical Site Plan - East

iv. Electrical Site Plan – West

v. Stationary Bollard Detail

vi. Sectionalizing cabinet at pavement detail

vii. Communications site plan – North

viii. Communications site plan – South

2. The following references and specifications shall serve as the minimum standards for all electrical work on this project unless otherwise noted in the statement of work or the project drawings.

i. National Electrical Code (most recent version)

ii. UFC 3-350-01 with Change 3, 01 November 2019 (attached) B. Provide underground electrical primary lines:

1. Location of the work:

i. East section: East side of Northgate Rd between building 124 and the north gate.

ii. West section: All overhead lines between west installation boundary and Minute Rd to the east, south of bldg. 127 and just to the southwest of bldg. 119.

iii. See drawings for actual locations and work.

2. Phasing of the work:

i. Phase 1: Provide all new underground conduits and cables, sectionalizing cabinets, transformers, manholes, equipment pads, and other related work so that no power outage in phase 2 work disrupts the base for more than 1 day. Expose existing underground primary conduits and ductbanks so they are ready to be connected to the new service items to restore power.

ii. Phase 2: This work shall be conducted on Friday’s, Saturdays and Sundays. Connect new underground conduits to the existing conduits, install new primary cables, make and test terminations and complete all other necessary work to restore power safely. Reconnect power to building 118. Provide a written 7 day minimum notice to the contracting officer prior to conducting this work.

iii. Phase 3: Complete ductbank work and restore the site to new and/or existing grades and conditions. Demolish existing power poles, transformers, lines and other materials no longer needed and dispose of off base properly.

iv. The government will consider proposed phasing by the contractor but is under no obligation to accept the contractor’s proposed plan.

3. Base Bid: All electrical work described in this statement of work and the drawings.

4. Optional Bid Item 1: All communications work described in this statement of work and on the communications drawings.

5. Underground Electrical Lines

i. Provide 2 each 5” conduits encased in concrete. Conduits shall be spaced a minimum of 3” apart and shall be schedule 40 PVC. Concrete shall provide a minimum of 4” of cover on all sides of the conduits. Top of concrete encased conduits shall be a minimum of 24” below finished grade. Concrete shall be a minimum of 3000 psi at 28 days and dyed red.

ii. Provide electrical warning tape 6” to 12” centered above ductbank.

iii. Directional boring is prohibited unless approved by the contracting officer. If it is approved the work shall comply with the most recent version of UFC 3-550-01.

iv. Provide No. 2 Medium Voltage cables as follows:

1. Conductors: Okoguard-Okoseal Type MV-105, 15 kV shielded power cable, with 133% insulation or approved equal. Provide sizes indicated.

2. Provide 6’ long maintenance loops of conductors in each manhole.

3. Terminations: 3M Industrial Loadbreak elbows, rated 15 kV for wire size indicated. Coordinate with all devices which are to be connected.

4. Test in accordance with NEMA WC 8 and AEIC CS 6 partial discharge level test for EPR insulated cable. Perform high potential test on new and existing cables rated over 600 volts.

5. T splices and Y splices are prohibited on medium voltage cables. Splices on medium voltage cables shall comply with UFC 3-550-01.

v. Sectionalizing cabinets: Provides a sectionalizing and tap point for medium voltage underground distribution system. Enclosure color is green.

vi. Rating: 15 kV

vii. Enclosure: Outdoor use under all environmental conditions

viii. Cover shall be lockable (lock by government)

ix. Coordinate taps with medium voltage cable.

x. Provide a minimum two parking stands per phase.

xi. Provide a 4/0 bare copper ground ring with 4 copper clad ground rods around each sectionalizer. Ground rods shall be a minimum of ¾ inches diameter and 10 feet long.

6. Provide underground pre-cast concrete electrical manholes where called for on the drawings. Minimum inside dimensions shall be 3’ high x 3’ wide x 3’ long. Provide a cast top and structure rated for H20 highway traffic. Walls, floors and tops, shall be a minimum of 6” thick. Provide accessories as needed to connect new conduits and support medium voltage cables.

7. Transformers (Distribution): Liquid filled transformer (PCB free) with high and low voltage terminating compartments, assembled on a common structural base. Enclosure as prescribed by code, lockable by padlock with green finish. Padlock by government.

i. KVA rating as shown

ii. Primary & secondary voltage as shown

iii. BIL Rating: 95 BIL rating for 15 kV insulation class transformers, 30 BIL for secondary.

iv. Primary taps: two 2-1/2 percent below and two 2-1/2 percent above rated voltage

v. High voltage compartment:

1. Deadfront per ANSI C57.12.26 type construction

8. Ground transformers, sectionalizers and ductbanks per National Electric Code and governing Unified Facilities Code requirements.

9. All pavements to be demolished in order to install new ductbank shall be sawcut prior to demolition. Pavements shall be placed back to their original condition once the new ductbank is completed, backfilled and compacted. Pavement profile is assumed to 12” of ODOT 304 base course and 4” of asphalt.

10. Provide all excavation required to install new electrical lines and equipment. Backfill and compact all excavations in maximum of 8” lifts. Compaction below pavements areas shall be a minimum of 98% maximum dry density, and a minimum of 95% maximum dry density.

11. Remove existing electrical power poles, wires, transformers and other miscellaneous associated equipment from the site and properly dispose of offsite. Backfill and compact all areas where equipment and poles were removed as stated in paragraph 8 above.

12. Provide clean imported fill, place and compact fill at the locations of the 3 new sectionalizing cabinets indicated on the east electrical site plan. Stabilized sloped areas with new grass.

13. Provide concrete equipment pads for sectionalizing cabinets and transformers as required by the equipment manufacturer.

i. The following is in addition to the requirements of the manufacturer: Concrete equipment pads shall be a minimum of 8” thick, with 4000 psi concrete at 28 days with 4% air entrainment (+/-1%) Top of pad shall be a minimum of 3” above surrounding grade and extend a minimum of 6” beyond the outside footprint of the equipment. Provide at least 1 layer of steel reinforcing of #4 bars, grade 60 steel, spaced at 12” on center each way. Provide openings in pad for conduits.

ii. Pads shall be placed on a minimum 12” gravel base compacted to 95% maximum density unless the manufacturer requires additional base materials.

14. Remove all demolished and excess materials from the site and dispose of properly.

15. Communications Infrastructure:

i. Provide communications handholes that are 4’ high x 4’ wide x 4’ long with cast top (minimum 30” diameter). Provide traffic rated structures where indicated. Provide a minimum of 2 cable racks on two walls of each structure (Old Castle part numbers 4474 and 4479 or equal).

ii. Provide communications conduits where indicated on the drawings. All conduits are a minimum of 4” schedule 40 PVC buried a minimum of 2’ below grade. Provide pull strings in all conduits.

iii. Provide metallic marking tape 12” above all communications conduits.

16. Restore site to its preconstruction condition at completion of work. Seed all bare unpaved areas with grass seed.

D. Submittals: Provide 1 electronic copy (pdf) of each submittal to the government for approval or record as indicated below.

1. Schedule with a schedule of values within two weeks of award.

2. Medium voltage cables

3. Sectionalizing Cabinets

4. Transformer

5. Mix designs for asphalt

6. Grass seed mix and certification

7. Quality Control reports for any testing services provided.

8. As-built drawings (1 red line & 2 copies) as needed.

9. Operations and maintenance manuals

10. 180th FW Solid Waste Disposal and Tracking Form F. General Requirements:

1. Contractor shall verify existing dimensions and conditions prior to submission of a bid and again prior to beginning work.

2. Contractor shall provide the government project manager 7 days advance written notice before performing any disturbance of the ground to a depth below 3 inches. Contractor shall ensure an approved Air Force Form 103 work clearance permit is issued before beginning any excavations.

3. Perform clean up on a daily basis. Work on the Parking Ramp and Aprons shall be kept clean continuously to prevent debris from construction/demolition work from becoming Foreign Object & Debris (FOD) that could damage airplanes. All debris shall be properly contained in dumpster, drums, cans, etc… and covered until removed from the site.

4. Provide a minimum of 7 days advance notice in writing to the Contracting officer prior to the shut down of any building utility system, street or parking lot.

5. Whenever a conflict in drawings, specifications or code exists, the most stringent requirement shall apply.

6. The buildings will remain operational during this construction.

7. Provide all traffic control devices and barricades as needed to protect the work. Provide lighted barricades if needed to block roads & streets overnight.

1.04 TOURS OF THE PROJECT SITE

Site visits will be scheduled in advance with Base Civil Engineering during the bidding period at (419) 868-4007, between the hours of 8:30 AM and 4:00 PM, Monday through Friday.

1.05 PERFORMANCE

Submission of a bid by a Contractor shall be accepted as prima facie evidence that he/she has examined the specifications and drawings and has satisfied him/herself as to the nature and location of the work and all matters which can in any way affect the work or cost thereof under this contract.

1.06 CONTRACT DOCUMENTS

Drawings and specifications cited herein are available from the Contracting Officer. Record drawings of existing facilities and utilities are available for review at the Office of Base Civil Engineer.

a. The intent of the drawings and specifications is to provide the Government with a complete and usable facility as indicated.

b. Any item mentioned in the specifications and not shown on the drawings or shown on the drawing and not mentioned in the specifications, shall be of like effect as if shown or mentioned in both.

c. In the case of differences between the drawings and specifications, the specifications shall govern. In the case of discrepancy in the figures in the drawings, or the specifications, the matter shall be promptly submitted to the Contracting Officer's Authorized Representative, who shall make a determination in writing. Any adjustments by the Contractor without such determination shall be at his/her own risk and expense. The drawings are intended to define an outline of the concept of the work to be accomplished and provide general locations of all items. The Contractor is ultimately responsible for field verifying the exact location.

1.07 APPLICABLE PUBLICATIONS

a. Various references are listed throughout these specifications. Such publications are incorporated into these specifications by reference. Materials and installations are to conform to the requirements of the specified applicable publications. The edition of each publication to apply is to be the most recent edition published prior to the date of the bid opening, unless stated otherwise where the actual reference is made. In case of conflict between the referenced document and the project specifications, the specifications shall govern.

b. Contractor shall insure that work performed is in full compliance with all federal, state and local laws and ordinances applicable to the construction of or the finished product of this contract.

1.08 MANUFACTURER'S INSTRUCTIONS

Where required in the specifications, the materials, products, processes, equipment or the like to be installed or applied, in accordance with manufacturer's instructions, directions, or specifications, or words to this effect, it shall be construed to mean that said installation or application shall be in strict accordance with printed instructions furnished by the manufacturer for use under conditions similar to those at the project site.

1.09 MATERIALS AND PRODUCTS

Locations where products are listed by brand names or equal (equivalent), are for informational purposes only, establishing a general standard of quality, and the Government in no way is making a warranty of availability or fitness of the product for use.

1.010 DIVISION OF WORK

a. The Contractor is responsible for all work. Should the Contractor award certain portions of the work to subcontractors, the division of work, the supervision of work, coordination of the work, and resolution of subcontractor disputes is entirely the Contractor's responsibility.

b. The Contractor shall locate the principal lines and grades for all construction and establish bench marks based on the elevations shown on the drawings.

c. The Contractor shall be responsible for the proper laying out of all work and for any damage which may accrue as a result of his/her inaccuracies.

1.011 CONTRACT PERIOD

The duration of this project shall be 150 days. However, work shall proceed in a continuous manner once started.

1.012 CLEANING REQUIREMENTS

a. Maintain the project site in an orderly condition that allows maximum access, does not impede traffic insures safety, and protects materials and equipment.

b. On a daily basis the Contractor shall remove all scrap, debris, and wastes from the project site or place it in the Contractor's approved containers daily and removed from the job site at least once each week. Properly dispose of all waste to an off-site location. In no case shall construction waste be placed in Government leased waste containers.

c. Mud, clay, stone, or other materials dropped by vehicles on paved surfaces shall be removed promptly and shall not be allowed to accumulate. Pavement areas that have been dirtied shall be swept broom-clean.

1.013 QUALITY ASSURANCE

a. Workmanship shall be in accordance with the best practices of the trade. All work shall be installed under direct supervision of a competent foreman.

b. Material and equipment shall be the standard products of a manufacturer regularly engaged in the Manufacture of the products. Items of equipment shall essentially duplicate equipment that has been in satisfactory use at least 2 years prior to bid opening.

1.014 ITEMS AND UTILITIES FURNISHED BY THE GOVERNMENT

Reasonable amounts of electrical power, water and sanitary sewer service shall be provided by the Government at no charge to the Contractor. The Contractor shall be responsible for the installation and removal of any connections required to accomplish this work.

1.015 SUBMITTALS

Submittals shall be in the form of data sheets, drawings, and/or samples as appropriate for the item. Three copies of each submittal shall be supplied to the BCE or his representative for approval. One Copy will be returned to the Contractor once reviewed by the government, and approved or disapproved.

1.016 WARRANTY

a. Materials, which do not have a guarantee stated elsewhere in these specifications, shall be guaranteed for a period of one year or as manufacturer's warranty states, whichever is longer.

b. Installation shall be guaranteed for a period of one year. Defective work shall be repaired or replaced as necessary during the guarantee period at the Contractor's expense.

1.017 DELIVERY, STORAGE, AND HANDLING

a. Materials shall be received, checked, and handled by the Contractor. The Government will not receive shipments of materials for the Contractor.

b. The Government is not responsible for security or loss of tools, equipment, or materials stored at the project site. The Contractor shall be responsible for the security and protection from damage of tools, equipment, and materials, which are used in the project.

c. Storage of materials will be in an approved area adjacent to the job site.

1.018 COORDINATION

Notify the Base Civil Engineer or his representative, 72 hours prior to the desired time for performing the work.

1.019 INSTALLATION

a. Work at the site shall be accomplished during normal day working hours of 7:00 AM to 4:00 PM, Monday through Friday. Hours other than normal shall be requested in writing and approved by the Base Civil Engineer or his representative.

b. When it is required to interrupt any service in order to make connections thereto, or for any other reasons, a written request to interrupt service shall be submitted to the BCE at least 2 working days prior to the anticipated interruption. The request shall state the date, time of day, and duration of the time of interruption.

1.020 PROTECTION OF PROPERTY

a. The Contractor shall not damage any area other than those so designated for this project. The Contractor shall protect the buildings and adjacent equipment from any physical damage, which may be caused by the performance of work under this contract and shall repair all damages so caused at no cost to the Government.

1.021 FIRE PROTECTION

a. Any use of open flames shall be requested through the BCE for approval and to get an open flame permit issued.

b. Contractor personnel will adhere to posted "No Smoking or Open Flame" areas.

c. The Contractor shall provide appropriate type and size fire extinguisher at the job site during all working times.

1.022 BARRICADES AND TRAFFIC CONTROL

The Contractor will be responsible for barricading of the work area and shall follow all restrictions posted on base. A continuous barricade will be replaced around all unattended excavation.

1.023 SAFETY AND ENVIRONMENTAL PROTECTION

a. The Contractor will perform in a safe and health conscious environment which, within the limits of controllable hazards will: Protect the life, health, and physical well being of ANG and Contractor personnel during their work on ANG projects. Prevent contamination of property, supplies, and equipment.

b. The Contractor shall immediately notify and promptly report to the BCE or his representative any accident, incident or exposure resulting in fatality, disabling occupational injury or disease, contamination of property, or property loss arising out of work performed under this contract.

c. The Contractor shall take all necessary precautions for the prevention of environmental pollution as a result of construction operations under this contract. For the purpose of these specifications, environmental pollution is defined s the presence of chemical, physical, or biological elements or agents which adversely affect human health and welfare.

d. The Contractor is subject to all applicable Federal, State and Local Laws, regulations, ordinances, codes, and orders relating to safety and health, and environmental. All references shall be the latest edition, amendment, and/or revision of such reference standard in effect as of the date of these specifications.

1.024 CONFINED SPACE

a. This requirement applies to work in confined or enclosed space such as storage tanks, process vessels, vacuum chambers, bins, boilers, vent or exhaust ducts, tunnels, pipe lines, sewer and utility manholes, and open top spaces, such as trenches, pits and vaults.

b. The Contractor shall instruct his/her employees as to the hazards and the precautions to be taken.

c. The Contractor shall notify the BCE of his plan and schedule for working in a confined space.

d. The Contractor shall employ the buddy system. No person shall be allowed to work alone in a confined space, without a buddy in close proximity outside of the work area. A lifeline shall be attached to the person inside when required by specific environmental conditions.

END OF SECTION

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