Atch1_SOW_Pad_Mount Transformer v1.pdf

STATEMENT OF WORK (SOW)

FOR PROCUREMENT OF

POWER TRANSFORMERS

(30 CES FY26)

28 July 2026

1.0 BACKGROUND

This contract requires the contractor to purchase thirteen (13) medium voltage pad-mounted transformers for the replacement of equipment that is approaching end-of-life service located at Vandenberg Space Force Base (VSFB).

Justification: Vandenberg’s power grid has approximately 500 transformers connected of various sizes ranging from 25 kVA to 2,000 kVA; constituting 40 to 50 different capacity and voltage configurations with limited cross-compatibility opportunities. That means 30 CES requires 40 to 50 different transformers on hand as critical spares. Since COVID, transformer availability, cost and lead times have grown worse and worse, affecting CE’s ability to reconstitute transformer inventories following repair projects that use them. The current spare inventory lacks some of the most commonly used transformers, forcing CE Electricians to scavenge transformers from vacant buildings in the recent 4-6 years. Two purchases made in FY25 will bring only 15 new transformers in the spare inventory; falling short of CE’s actual needs. More transformers are needed to fulfill a comfortable critical level of spares for future needs on the power grid.

Additionally, the ever-increasing launch tempo and general mission tempo of Vandenberg has greatly reduced the tolerance for unexpected power outages. 30 CES desperately needs to establish this critical spare inventory to prevent mission stoppage.

2.0 DESCRIPTION OF WORK

2.1 PAD-MOUNT TRANSFORMERS

The contractor shall furnish all labor, transportation and other requirements necessary for providing the following transformers. The thirteen (13) three phase pad-mounted transformers shall have the following voltage ratings:

# Item Qty 1 Pad-mount transformer, 12000V primary, 120/208Y secondary, 300 kVA 2 2 Pad-mount transformer, 12000V primary, 277/480 secondary, 300 kVA 2 3 Pad-mount transformer, 12000V primary, 120/240 secondary, 225 kVA 1 4 Pad-mount transformer, 12470V primary, 120/208Y secondary, 300 kVA 1 5 Pad-mount transformer, 12470V primary, 277/480 secondary, 300 kVA 1 6 Pad-mount transformer, 12470V primary, 277/480 secondary, 500 kVA 2 7 Pad-mount transformer, 12000V primary, 120/208Y secondary, 500 kVA 1 8 Pad-mount transformer, 12000V primary, 277/480 secondary, 500 kVA 1 9 Pad-mount transformer, 12000V primary, 277/480 secondary, 750 kVA 2

In addition, the three phase pad-mounted transformers shall meet VSFB electrical requirements below:

All stainless-steel construction (includes tank, cabinet, base, radiators, fasteners, hinges, etc.), stainless-steel grade shall be 304L or 316L (if available).

“Pentahead” cabinet locking mechanism/device.

Dead-Front construction (HV-200A load break elbows with shield adapters).

Externally clamped LV bushings with threaded copper stud for full load current below 2,100.

amperes – NEMA spades shall be provided per ANSI hole requirements.

Radial feed preferred (loop feed must be approved by the government) Frequency: 60 Hz Windings: HV/LV copper Mineral Oil-filled (Non-PCB): Type FR-3 Fluid.

Standard impedance.

Mild steel high-voltage/low-voltage compartment barriers.

Cooling fins.

Proper grounding provisions.

Dial type gauges for oil temperature, liquid level and pressure/vacuum.

Bay-O-Net fuses & current-limiting fuses: properly sized – additionally, the transformer should be equipped with three spare fuses.

Two-position “ON/OFF” load break primary switch 5-position tap changer: (-5%, -2.5%, 0, +2.5%, +5%) Automatic pressure relief device mounted on the terminal compartment.

Oil drain valve with sampling device, and an oil-fill/oil-level plug.

Nameplate and NEMA safety labels: include a “UL Listed” symbol on ratings label and nameplate.

Compliant with 2016 DOE Efficiency Standard.

Four (4) lifting lugs.

Entire exterior of the pad-mount transformer and terminal components shall be painted with a

Munsell-Green, outdoor color-finish.

Guaranteed to have an average coil winding temperature of 65°C rise over an average ambient air temperature of 30°C when operated at rated voltage and load conditions.

Provide DGA test to verify conformance to performance requirements as outlined in the latest Transformers must have wet process porcelain high voltage bushings resistant to high voltage corona discharge Transformers shall be equipped with four 2.5% full-capacity taps (-5%, -2.5%, 0, +2.5%, +5%) and a tap changer operated by an external handle or selector switch Transformer tanks and lids must be corrosion-resistant, fabricated of stainless-steel conforming to

ASTM A167, Type 304L or 316L stainless steel Transformers shall be painted with light grey, ANSI Color No. 70 finish, in compliance with

IEEE C57.12.28 regardless of tank and cover material The transformer shall be labeled with the kVA rating with 2.5-inch-tall numerals placed below the low-voltage terminals near the bottom of the tank Transformer windings must be copper The transformer tank must have grounding provisions The data plate must be corrosion proof, and the data must be engraved (not printed with ink)

2.2 DELIVERY LOCATION

Contractor shall deliver the purchased equipment to the address below:

30 CES/CEOFE (Attn: Thomas Bryner)

1172 Iceland Avenue

Building 11439 Electric Shop

Vandenberg Space Force Base, CA 93437

3.0. GOVERNMENT-FURNISHED PROPERTY AND SERVICES

No property or services shall be provided under this contract, except as noted below. All other items needed to fulfill the requirements of this contract are the sole responsibility of the Contractor.

3.1 Medical Response Services

The Government will provide initial medical treatment for life-threatening emergencies. It shall be the responsibility of the Contractor or Contractor employee to seek continued medical treatment, if needed. The Contractor or employee shall reimburse the Government for all Government-provided medical services. The emergency phone number is 606-3911 (LE Desk).

4.0 Main Base Access Requirements

Current security access restrictions at the Santa Maria Gate (Main Base entry gate) require all Contractor vehicles (that are the size of a standard bread delivery truck or larger) to enter only through the Lompoc Gate (located at intersection of Santa Lucia Road and Pine Canyon Road).

There is a vehicle check pull-off area at that gate, and the Contractor may be required to submit to a vehicle search prior to gaining

5.0 POINTS OF CONTACT.

5.1 Customer Representative (CR)

Volkmer Garcia

30 CES/CEOR

Cell: (805) 459-1608 Work: (805) 606-3559 Email: volkmer.garcia.1@spaceforce.mil

Ombudsman

1. An ombudsman has been appointed to hear and facilitate the resolution of concerns from offerors, potential offerors, and others for this acquisition. When requested, the ombudsman will maintain strict confidentiality as to the source of the concern. The existence of the ombudsman does not affect the authority of the program manager, contracting officer, or source selection official. Further, the ombudsman does not participate in the evaluation of proposals, the source selection process, or the adjudication of protests or formal contract disputes. The ombudsman may refer the interested party to another official who can resolve the concern.

2. Before consulting with an ombudsman, interested parties must first address their concerns, issues, disagreements, and/or recommendations to the contracting officer for resolution. Consulting an ombudsman does not alter or postpone the timelines for any other processes (e.g., agency level bid protests, GAO bid protests, requests for debriefings, employee-employer actions, contests of OMB Circular A-76 competition performance decisions).

3. If resolution cannot be made by the contracting officer, the interested party may contact the ombudsman, Mr. Erik Symanski.

AFICC/KS

Attn: Ombudsman Mr. Symanski

250 S. Paterson

Peterson SFB, CO 80914-3140

Email: erik_symanski@us.af.mil

4. The ombudsman has no authority to render a decision that binds the agency.

5. Do not contact the ombudsman to request copies of the solicitation, verify offer due date, or clarify technical requirements. Such inquiries shall be directed to the contracting officer.

Health and Safety on Government Installations

In performing work under this contract on a Government installation, the contractor shall:

1. Take all reasonable steps and precautions to prevent accidents and preserve the health and safety of contractor and Government personnel performing or in any way coming in contact with the performance of this contract; and

a. Take such additional immediate precautions as the contracting officer may reasonably require for health and safety purposes

2. The contracting officer may, by written order, direct Department of the Air Force

Occupational Safety and Health (AFOSH) Standards and/or health/safety standards as may be required in the performance of this contract and any adjustments resulting from such direction will be in accordance with the Changes clause of this contract.

3. Any violation of these health and safety rules and requirements, unless promptly corrected as directed by the contracting officer, shall be grounds for termination of this contract in accordance with the Default clause of this contract.

Contractor Access to Department of the Air Force Installations

• The contractor shall obtain base identification and vehicle passes, if required, for all contractor personnel who make frequent visits to or perform work on the Department of the Air Force installation(s) cited in the contract. Contractor personnel are required to wear or prominently display installation identification badges or contractor-furnished, contractor identification badges while visiting or performing work on the installation.

• The contractor shall submit a written request on company letterhead to the contracting officer listing the following: contract number, location of work site, start and stop dates, and names of employees and subcontractor employees needing access to the base. The letter will also specify the individual(s) authorized to sign for a request for base identification credentials or vehicle passes. The contracting officer will endorse the request and forward it to the issuing base pass and registration office or Security Forces for processing. When reporting to the registration office, the authorized contractor individual(s) should provide a valid driver’s license, current vehicle registration, valid vehicle insurance certificate to obtain a vehicle pass.

• As of 07 May 2025, all VSFB visitors are now required to have a REAL ID in order to be processed for a base access pass. If the visitor does not possess a state issued REAL ID, the following documents may be provided:

*BIRTH CERTIFICATE (original or certified true copy) bearing a raised seal, and SOCIAL SECURITY CARD, and a STATE ISSUED DRIVERS

LICENSE/IDENTIFICATION CARD (that is not REAL ID-compliant).

*VALID PASSPORT or PASSPORT CARD

*PHOTO ID ISSUED FROM ANOTHER FEDERAL AGENCY (PIV: DoJ, DoS, NASA, or other similar agency).

• During performance of the contract, the contractor shall be responsible for obtaining required identification for newly assigned personnel and for prompt return of credentials and vehicle passes for any employee who no longer requires access to the work site.

• Not Applicable - When work under this contract requires unescorted entry to controlled or restricted areas, the contractor shall comply with [insert any additional requirements to comply with DAFI 31-101, Base Defense Operations, and DoDMAN5200.02_DAFMAN16-1405_DAFGM2026-01, Air Force Personnel

Security Program] citing the appropriate paragraphs as applicable.

• Upon completion or termination of the contract or expiration of the identification passes, the prime contractor shall ensure that all base identification passes issued to employees and subcontractor employees are returned to the issuing office.

https://static.e-publishing.af.mil/production/1/af_a4/publication/dafi31-101/controlled_unclassified_information.pdf https://static.e-publishing.af.mil/production/1/saf_oc/publication/dodman5200.02_dafman16-1405/dodman5200.02_dafman16-1405.pdf https://static.e-publishing.af.mil/production/1/saf_oc/publication/dodman5200.02_dafman16-1405/dodman5200.02_dafman16-1405.pdf

• The contractor shall provide an after-hours contact number or after-hours email in the

Emergency Mass Notification System (EMNS) for each of their personnel, whose normal place of duty is on a DoD installation or within a DoD facility. The contractor shall comply with any additional requirements in DAFI 10-206, Operational Reporting for emergency operational reporting. Foreign Nationals may participate and may remove themselves from the Emergency Mass Notification System at any time. To update information, personnel can access the globe icon on their system desktop screens and choose the “Access Self-Service” option.

• Failure to comply with these requirements may result in withholding of final payment.

https://static.e-publishing.af.mil/production/1/af_a3/publication/dafi10-206/dafi10-206.pdf