24R2761 Amendment 0003.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

J

PAGE OF PAGES

1 3

2. AMENDMENT/MODIFICATION NO.

3. EFFECTIVE DATE

19-Aug-2024

4. REQUISITION/PURCHASE REQ. NO.

ACQR 6063390

5. PROJECT NO.(If applicable)

6. ISSUED BY CODE N40085 7. ADMINISTERED BY (If other than item 6) CODE

NAVFAC MID ATLANTIC

PWD OCEANA

FACILITIES ENGINEERING & ACQ DIV

953 HORNET DR SUITE 213

VIRGINIA BEACH VA 23460-2190

See Item 6

8. NAME AND ADDRESS OF CONT RACTOR (No., Street, County, State and Zip Code) X 9A. AMENDMENT OF SOLICITATION NO.

N40085-24-R-2761

X 9B. DATED (SEE ITEM 11)

18-Jul-2024

10A. MOD. OF CONT RACT /ORDER NO.

10B. DAT ED (SEE ITEM 13)

CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENT S OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNT ING AND APPROPRIAT ION DAT A (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICAT IONS OF CONT RACTS/ORDERS.

IT MODIFIES THE CONT RACT /ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONT RACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONT RACT /ORDER IS MODIFIED TO REFLECT THE ADMINIST RAT IVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORT ANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

SOLICITATION N40085-24-R-2761, REPLACE 400 HZ SYSTEM AT HANGAR 111, NAS OCEANA, VIRGINIA BEACH, VIRGINIA.

THERE IS A CHANGE TO THE PROPOSAL DUE DATE AS A RESULT OF THIS AMENDMENT.

PROPOSALS ARE DUE 26 AUGUST 2024 AT 2:00 PM.

SEE CONTINUATION PAGE(S).

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONT RACTING OFFICER (Type or print)

TEL: EMAIL:

15B. CONT RACT OR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNIT ED STATES OF AMERICA

BY

(Signature of Contracting Officer)

16C. DATE SIGNED

19-Aug-2024

EXCEPTION TO SF 30

30-105-04

STANDARD FORM 30 (Rev. 10-83) APPROVED BY OIRM 11-84 Prescribed by GSA

FAR (48 CFR) 53.243

N40085-24-R-2761

The following have been added by full text:

AMENDMENT 0003

SOLICITATION N40085-24-R-2761, REPLACE 400 HZ SYSTEM AT HANGAR 111 NAS OCEANA,

VIRGINIA BEACH, VIRGINIA.

The purpose of this amendment is to:

1. Provide responses to pre-proposal inquiries (PPIs).

2. Extend the proposal due date from 21 August 2024 at 2:00 PM to 26 August 2024 at 2:00 PM.

Pre-Proposal Inquiry Submission Form

N40085-24-R-2761, REPLACE 400 HZ SYSTEM AT HANGAR 111

Project Location: NAS OCEANA, VIRGINIA BEACH, VIRGINIA

PPI

No.

Reference Question Government Responses

Page Section Paragraph

The solicitation requires contract completion within 270 days of task award.

I have concerns about this timing since it includes design (with 4 submissions, 35%, Pre-final, Interim Final and Final and the Government gets 21 days to review), (2) Design Review meetings (35% and Pre-final), product submittal review (the 400Hz converters require Government review) and procurement of equipment and then construction all in 9 months. Could we request a, additional 6 months to complete the project, or a government review of the time offered for completion?

No, 270 days is considered adequate time for this design-build project.

The project scope includes removal of (1) 125kVA 400 Hz converter and installation of (13) 90kW 400 Hz converters. Has the government verified there is adequate capacity in the electrical distribution system to support this?

No but with diversity there isn't great concern. Regardless, DOR will have to determine/verify the 60Hz system loading.

Is there a demand factor that the Government is utilizing for the 400 Hz load? How many of the (13) 400 Hz converters are expected to run at the same time and what is the anticipated load for each?

Demand factor data will be provided after consultation with the Activity. This will be post-award.

Will the DB Team be required to meter the existing building service, for 30 days, to confirm adequate capacity?

No metering is required.

Will the contractor be allowed to de-energize equipment prior to removing or installing? Is there any equipment that needs to remain operational which will require the contractor to work on energized equipment to complete the scope of work?

No energized work will be authorized.

N40085-24-R-2761

(End of Summary of Changes)

Is there a basis of design 90kW 400 Hz converter that the government has in mind? If so, what is it?

No, the requirements of the equipment are provided in UFC 3-555-01 and UFGS-26

35 43.

Confirm that the electrical calculations shall only be required for new equipment provided under this scope and existing upstream devices required to complete the calculations for the new equipment.

Electrical calculations will be required for the entire 60Hz infrastructure in Hangar

111.

Will any other equipment besides the existing 400 Hz Converter need to be turned over to the government? Who is responsible for removing the converter from the building? Will the contractor be required to deliver it off-site? If so, where?

The existing 400Hz converter is the only equipment to be turned over to the

Government and it won't be required to be moved from its current location.

RFP calls for removal of the 125kVA 400Hz system and installation of

13x90kW=1170 kW (10x the capacity current system). The RFP also requires the design to utilize the existing 480Y/277V infrastructure to supply the new 400Hz system. Does the existing 60Hz system have adequate capacity to operate the new system? Are we to assume it does for the pricing purposes?

Yes, the existing 60Hz system is considered adequate to support the addition of the new 400Hz infrastructure.

Also, refer to the responses to PPI's 3 and

4.

RFP states: "Provide a complete updated one-line power diagram for Hangar 111."

Please confirm whether or not we are supposed to survey the entire facility and verify all existing electrical service and distribution equipment?

Yes, however, the existing one-line is considered fairly accurate so a complete one-line will not have to be created from scratch. It will have to be field verified, checked for accuracy and updated based on the new design.

RFP states: "Provide design analysis and calculations as per UFC 3-501-01, Electrical Engineering, paragraph 3-2.2.2 items a, b, c, d and e." Is the intent to perform Load Analysis, SC Analysis, Coordination study, and AF analysis for the entire facility or only the parts of the existing system that are associated with the new 400Hz system?

The analyses need to be performed for the entire facility due to significant alterations to the existing electrical infrastructure.

13 Are CAD files available?

Yes, but they are not considered complete and will require field verification for accuracy especially due to the variability in existing conditions where the new

400Hz converters will be installed. Files will be made available post-award.