RFI Questions and Answers W50S6T24QA024-18Sep2024.pdf

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Attached to
Automatic Transfer Switch Replacement
Solicitation number
W50S6T24QA024
Issued by

About this file

This document is a Request for Information (RFI) with Questions and Answers related to solicitation W50S6T24QA024 for the replacement of two automatic transfer switches (ATS) for the 144th Fighter Wing.

The key details are:

  • The RFI confirms the required ATS unit sizes and specifications, including 200A 3P 120/208V for B130 and 100A 3P 277/480V for B125.
  • It clarifies that a retrofit option is preferred over full switchboard replacement for both B125 and B130.
  • No Division 01 or Division 26 specifications are applicable, as electrical equipment must meet the Performance Work Statement requirements.
  • An electrical arc-flash study is not required, but testing for breakers over 100A is needed.
  • The Government will provide backup generator units during the electrical shutdowns required for ATS replacement.
  • Replacement of conductors connected to the ATS units is in scope if required.
  • This is an outdoor installation with no specific neutral configuration or interface requirements beyond one-for-one ATS replacement.
  • This is a 100% Service-Disabled Veteran-Owned Small Business set-aside, with offers due by September 30, 2024. Amendments must be acknowledged.

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Request for Information, Questions and Answers for solicitation W50S6T24QA024:

1. Please confirm B130 ATS unit needs to be 200 Amp 3P 120/208v unit per single line diagram provided, and not a 180 Amp 3P unit stated in Performance of Work Statement 3.1.1.

Updated the PWS section 3.1.1 to 200 Amp.

2. Please confirm B125 ATS unit needs to be 100 Amp 3P 277/480v unit per single line diagram provided, and not a 500 Amp 3P unit stated in Performance Work of Statement 3.1.2.

Updated the PWS section 3.1.2 to 100 Amp.

3. Please clarify if the contractor is to replace the whole switchboard B125 with MSB 400A 3P 277/480v 22 kAIC with loads per single line provided, or retrofit an ATS into the space occupied by the existing ATS in the main switchboard?

A possible option is to add a new freestanding ATS unit if space allows it. Per our Power Pro Shop, retrofit will be the best option.

4. Please clarify if the contractor is to replace the whole switchboard B130 with MSB "MS" 800A 3P 120/208v 22 kAIC with loads per single line provided, or retrofit an ATS into the space occupied by the existing ATS in the main switchboard?

A possible option is to add a new freestanding ATS unit if space allows it. Per our Power Pro Shop, retrofit will be the best option.

5. Please provide Division 01 General Conditions specifications for this project.

Division 01 is not applicable to this solicitation.

6. Please provide Division 26 specifications for electrical equipment including ATS and switchboards.

Division 26 is not applicable to this solicitation. Electrical equipment must meet PWS specifications, to include 3.1.2 guidance installed from a licensed electrical contractor in accordance with NEC.

7. Is an electrical Arc-Flash and Coordination study required for this project?

No

8. Is testing required for breakers over 100 Amps on new equipment?

Yes

9. The current lead time for equipment may be longer that the period of performance of 23 Sep 2024 to 22 Nov 2024 provided in the solicitation. Will a longer performance period be considered?

Yes, we can accommodate a longer period of performance due to lead time. Provide support for lead time and we can extend the period of performance according to lead time.

10. Is a Bid Bond required for this RFQ?

No, a bid bond is not required for this project.

11. Is any third-party testing required for this project?

No third-party testing is required, our Power Pro Shop will do the testing of the functionally of the new switch.

12. Please clarify if during the electrical shutdown to replace ATS units for both B125 & B130 if a back-up generator rental unit & fuel will need to be included in the cost or if the affected areas of the switchboard/s are able to be shutdown without a backup generator?

Backup generator units will be provided by the Government, our Power Pro team.

13. Is the cost of replacement conductors connected to the existing ATS units (normal power & backup generator) in this RFQ's scope of work?

If the conductors need to be replaced, then, yes. Please provide inspection.

14. Is a megger test of the existing conductors connected to the ATS units need to be performed as part of this RFQ?

Can be done if replaced. The test can be done in house, if not replaced.

15. Enclosure requirements? Indoor or outdoor installation?

This is outdoor installation

16. Do you know the Neutral Configuration required for these units?

No, we do not know this information. Schematics drawings are available on solicitation.

17. Is the end user communicating with the switches via dry contacts or?

No, not for this project.

18. Any other features desired on the new product?

We only required to swap one for one at this moment.

File details come from the government source that posted it. Updated .