WWYK150083 Pre Bid RFI Response.pdf

DEPARTMENT OF THE AIR FORCE

HEADQUARTERS 72 AIR BASE WING (AFMC)

TINKER AIR FORCE BASE OKLAHOMA

23 February 26

MEMORANDUM FOR AFSC/PZIOC (ATTN: Sarah Hinds)

THROUGH: 72 ABW/CENM

FROM: 72 ABW/CEED

Tepa Companies

SUBJECT: Pre-Bid RFI Responses Project: WWYK150083, Repair Transformer Vault 6, B9001

Reference: Memo, 18 February 2026, Pre-Bid RFIs, WWYK150083, Repair Transformer Vault

6, B9001

1. This office reviewed the referenced RFIs for the subject project and provided answers below. Please forward to the contractor(s) for their use in preparing proposals

(1) Are the existing Transformers oil filled? If so have they been tested for PCB’s? Will we be responsible for the disposal if PCB’s are present?

Government Response: The transformers are gas filled.

(2) Will there be an allowance for the existing bus, pipe, and wire if they need modified or extended to fit into the new gear?

Government Response: Drawing E-601, keynotes 3, 4, 5, and 6 shows the scope of work to extend bus, pipe, and wire to the new gear.

(3) Is the intent that we transition on to the existing busway using custom busway adapters, or are we using end cable tap boxes, and joining the busway together using cable?

Government Response: The intent is to provide busway adapters and extend the busway to the new gear, similar to the current installation.

(4) What is the make/model of the existing busway?

Government Response: Existing busway is ITE XL-X.

(5) Are the DPM meters shown in the new SWGR 6C/6D expected to be the base standard ION8650 meters? If so, is it acceptable to use externally mounted meters?

Government Response: It is expected to use the base standard. Externally mounted meters are acceptable if they cannot be mounted to the switchgear.

(6) Are the existing transformers 6E and 6A bused to the existing primary switches using closed-coupled connection, or are they cabled?

Government Response: Contractor will need to confirm on site. They appear to be bused.

(7) Projects affecting building area’s with legacy fire alarm panels located in rooftop ash houses have been used systematically to update and relocate these nodes at ground level of the building. Is there an intention to update and relocate Node 8 with this Government Response: No, relocation of Node 8 is not within the scope of work for this project.

(8) Please confirm the intent is that the contractor transition onto the existing busway using custom busway adapters, or if the contractor is to end cable tap boxes, and join the busway together using cable.

Government Response: Repeat of item 3.

(9) Please provide the make/model of the existing busway?

Government Response: Repeat of item 4.

(10) Please confirm if the meters shown in the SWGR 6C/6D are expected to be the base standard ION8650 meters?

Government Response: Repeat of item 5.

(11) If so, is it acceptable to use externally mounted meters?

Government Response: Repeat of item 5.

(12) Are the existing transformers 6E and 6A bused to the existing primary switches in a

Government Response: Repeat of item 6.

(13) Projects affecting building area’s with legacy fire alarm panels located in rooftop ash houses have been used systematically to update and relocate these nodes at ground level of the building. Is there an intention to update and relocate Node 8 with this project?

Government Response: Repeat of item 7.

(14) Please provide project specifications.

Government Response: These were provided by PZ, with the Contractor CD, after the site visit.

(15) Please confirm the design requirements and level of design and drawing development expected from the contractor.

Government Response: The required level of drawings is stated in the Statement of Work on 3.6

(16) Is the intent that we transition on to the existing busway using custom busway cable?.

Government Response: Repeat of items 3 and 8. The intent is to provide busway adapters and extend the busway to the new gear, similar to the current installation.

(17) SOW 2.3 states there is no phasing by the government. However, drawing ED 001 and

ED 601, General Note 3 states all Demo work shall be planned in phases to minimize impact to production. Given that the contract does not know the government’s production schedule do they have a phasing plan for the contractor to consider.

Government Response: The intent of phasing is to keep the continuity of power as much as possible during construction, so all work isn’t being done at the same time.

The contractor will have to coordinate with the user group for production schedules.

(18) Drawing E 001, General Note 1: Confirm the contractor is to follow Tinker AFB

Electrical Standard dated January 2019 and not January 2025.

Government Response: Project will follow the 2025 Tinker AFB standards.

(19) Drawing E 001, General Note 3: states to see architectural plans for fire-rated wall locations. These Drawings do not show only fire-rated walls. Please confirm there are no fire-rated walls to stop fire in this contract.

Government Response:

ARCH: No fire-rated walls included as part of this scope of work.

(20) Drawing ED 101, Keyed Note 2 states contractor is not allowed to use the existing hoist. Is the contractor allowed to install and upon completion remove their own hoist system?

Government Response: Yes. This is the design intent for a contractor designed hoist system to be installed and removed upon completion. The existing hoist beam is not to be used for this effort due to the observed damage to the beam.

(21) Drawing E101 and E601, General Note 4 states to provide temporary power transformer as required during switchgear replacement. Provide the size of transformer and loads it is to feed.

Government Response: Still formulating a response to this RFI.

(22) Drawing E 101 layout the Main Tie Main 6D and 6C seem to indicate one manufacturer as the basis of design. Does the government have a preference or need of one manufacturer to meet layout restrictions?

Government Response: Sheet E-601 keynote 1 provides the basis of design. If an equal manufacturer meets the requirements and layouts then an alternate manufacturer is acceptable.

(23) Is it the intent that we transition on to the existing busway using custom adapters, or are we using end cable tap boxes, and joining the busway together using cable?

Government Response: Repeat of items 3, 8 and 16. The intent is to provide busway

(24) What is the make/model of the existing busway?

Government Response: Repeat of items 4 and 9.

(25) Are the DPM meters shown in the new SWGR 6C/6D expected to be the base standard ION8650 meters? If so, is it acceptable to use externally mounted meters?

Government Response: Repeat of items 5 and 10.

(26) Are the existing transformers 6E and 6A bused to the existing primary switches in a

Government Response: Repeat of item 6 and 12. Contractor will need to confirm on site. They appear to be bused.

(27) Is the intent that we transition on to the existing busway using custom busway cable?

Government Response: Repeat of items 3, 8 and 16. The intent is to provide busway

(28) Does the oil in the 2 oil filled transformers contain PCB?

Government Response: N/A – the transformers are gas filled.

(29) Is the contractor to remove and return the oil from the transformers over to the government/conforming storage?

Government Response: Transformers are gas filled not oil filled.

(30) What is the load rating of the floor in the electrical room?

Government Response: 100 psf per General Note G4.B on Sheet S-001.

(31) What will subcontractors’ responsibilities be regarding SOW 2.6 Controlled/Restricted areas? What training will need to be accomplished?

Government Response: There will be a power point presentation that will need to be reviewed. Once its completed you will receive a certificate that will allow you to have access to the industrial areas.

(32) SOW section 4.2 specification states they were provided by Appendix B on the CD.

Please provide.

Government Response: These were provided by PZ, with the Contractor CD, after the site visit.

2. The points of contact for this project are:

a. Gloria Bucher, Project Manager. PH: 405-582-4830

b. Mark Williams, Construction Inspector. PH: 405-582-9042

c. Joshua Wheeler, CSAG Program Manager. PH: 405-582-4826

d. Matt Morris, Contracting Officer Representative (COR). PH: 405-736-7081

3/2/2026

X Gloria Butcher Gloria Butcher Project Manager Signed by: BUTCHER.GLORIA.MARIE.1269258701

Gloria Butcher Matt Morris Project Manager 72 ABW/CENME/COR 72d Civil Engineering Directorate (Tepa) 72d Civil Engineering Directorate cc:

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