B2021 RFI_Answers 1.docx
DOCX document 18 KB Posted
- Attached to
- Replace Radar Generator, B2021
- Solicitation number
- FA302226R0006
About this file
This is a Request for Information (RFI) Answers document for solicitation FA302226R0006, addressing contractor inquiries regarding the Replace Radar Generator, B2021 project at Columbus Air Force Base. The document clarifies 18 key questions and answers that inform proposal development for this full generator system replacement effort.
Critical staffing and documentation requirements include: superintendent and quality assurance/quality control roles must be filled by separate individuals; quality assurance/quality control and safety plans do not require project-specific documentation. Regarding existing infrastructure, contractors may reuse phase and neutral conductors, grounding electrodes, and underground conduits if they validate condition acceptability through megger testing or equivalent; however, contractors must field-verify all existing conditions and loads, and are responsible for disposing of the old fuel tank. The government provides existing as-built drawings, one-line diagrams, metering data in kilowatt-hours per month, and connected load information to guide design, though contractors must confirm specifications. The new generator system must match or exceed the existing Kohler generator's capabilities, including a 15-second start and load-take specifications; while the sole-source justification references Cummins generators, generators from other manufacturers will be considered if they meet the existing system's specifications. For operational continuity, limited and coordinated weekend outages may occur to transition the system to dual backup generation. Contractors may propose design alternates but should plan on matching the existing generator size unless field verification supports alternative sizing.
View the file
Other files
Show all 18
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
B2021 RFI’s
1. In executing this project, can one superintendent fulfill the supervision, safety, and QAQC roles?
Superintendent and QAQC must be to separate individuals.
2. Are contractors required to issue a contract specific QA/QC Plan?
Plan doesn’t have to be project specific.
3. Are contractors required to issue a contract specific Safety Plan?
Plan doesn’t have to be project specific.
4. Is this project tax exempt?
No.
5. Paragraph 4.5.15 indicated record drawings are attached, but none were attached to the SOW. Are there any record electrical drawings available, including one-line diagrams and plan views?
Record drawings attached.
6. Are there any CAD files available of the generator shed and immediate site area?
Available drawings attached.
7. Is there any metering data available?
Metering data attached in kWh per month.
8. Is there a list of connected loads available to determine the peak loading of the generator?
The intent is to match the size of the existing Kohler generator. The existing information on the generator and loads are attached. The contractor is responsible to field verify existing conditions, and may propose an alternate during design, however they should plan on matching existing size.
9. May the existing phase and neutral conductors be re-used as feasible?
Yes if contractor can verify and validate the condition of the conductor and insulation with a megger test or testing equivalent. Please see RFI 2 for corrected answer.
10. How much down time can be tolerated for a single source of power to the load? At what outage duration will redundant power sources be required?
A limited and coordinated weekend outage may occur to move the system onto the duel backup generation for the performance of work.
11. Are existing as-built drawings available for generator installation: Mechanical, Electrical, Civil, Structural, Architectural?
Available existing drawings attached.
12. Are as-built one line diagrams which identify all of the relevant loads needed for the generator load study or will contractor need to perform a field survey to find the information?
The contractor shall field verify all load information, the attached as-builts are all existing available information.
13. Statement of Work mentions replacing existing grounding conductors. It is assumed underground ground grid will remain in place and be reused. Please confirm.
The grounding electrodes may be reused as long as they meet required resistivity per the SOW.
14. Will contractor dispose of old fuel tank or will owner keep?
The contractor shall dispose of the old fuel tank.
15. Will existing conductors between electrical equipment (generator, transfer switch, load bank, meter, etc) be reused or replaced?
They may be reused as long as the contractor validates and verifies the condition is acceptable per question 9. Otherwise the contractor shall furnish and install new conductor. Please see RFI 2 for corrected answer.
16. Is there an existing Annunciator Panel on this project and does it need to be replaced?
Existing annunciator panel PLC information attached, the new generator shall be wired into existing system by contractor.
17. Is Cummins Gen Equipment the only one acceptable or will others be considered as long as they meet the spec?
The sole source J&A is for Cummins generators at Columbus AFB. It is more important to match the capabilities of the existing generator specs attached.
18. Is underground cabling/Conduits Required to be replaced or can conduits be reused?
Conduits may be reused.
File details come from the government source that posted it. Updated .