2.06c N0018925Q0055 Amendment 0002 QA.pdf
PDF 194 KB Posted
- Attached to
- Uninterruptible Power Supply (UPS)
- Solicitation number
- N0018925Q0055
About this file
This is a Questions and Answers (Q&A) document labeled as Amendment 0002 for RFP N0018925Q0055, which pertains to an Uninterruptible Power Supply (UPS) Transformer procurement for the Department of the Navy.
The Q&A addresses several technical and logistical aspects of the procurement, clarifying that: no site visits will be conducted; rigging path drawings are provided separately but UPS room layout drawings are unavailable; existing batteries must be reused rather than replaced; the existing battery cabinets operate at 480 VDC with 48 VDC shunt trip breakers manufactured by Cutler Hammer. Importantly, the document confirms that vendors must be Manufacturer Authorized Partners and provide current authorized reseller certification for Eaton products, as specified in the Brand Name Justification and Combined Synopsis/Solicitation section 52.212-1 Addendum.
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Text version
UPS Transformer Q&A
RFP N0018925Q0055
Amendment 0002
CUI//PRVCY
1. Question: Is it possible to schedule a site visit prior to bidding this work?
Answer: No site visit will be conducted.
2. Question: Are any drawings available? Specifically:
a. Drawings showing the UPS room and layout of batteries, UPS, and transformer.
b. Drawings showing building with rigging path to/from the loading dock (assuming there is a loading dock available).
Answer: Provided in separate attachment titled “B420 Rigging Path”. Drawings showing the UPS room and layout of batteries, UPS and transformer are not available.
3. Question: Are we able to provide new batteries in lieu of re-using the existing batteries?
Answer: No.
4. Question: We'd like to request a site visit (approximately 1-hour) for this Friday, 12/13 in the morning to be conducted by our project manager, John DeDomenico, and our electrical installer from A&M Electric.
Answer: No site visit will be conducted.
5. Question: What are the nominal string voltages of the existing battery cabinets (as the 93PM requires 480VDC)?
Answer: 480 VDC
6. Question: Is the existing 9315 battery breaker a 24VDC shunt trip as that was normally used in that series of battery cabinets? (93PM needs a 48VDC shunt trip and aux contacts on the battery breakers.)
Answer: 48 VDC. Each of the three battery cabinets are labeled as 48 VDC.
7. Question: Are you able to provide photos of the DC disconnect?
Answer: No
8. Question: Please provide the manufacturer name of the battery disconnect presently installed.
ABB or Cutler Hammer? (Requesting because if ABB breakers, the breaker mounting pattern is different and might preclude effective reuse of the 9315 battery cabinet).
Answer: Cutler Hammer
UPS Transformer Q&A
RFP N0018925Q0055
Amendment 0002
9. Question: Just reading over solicitation N0018925Q0055 for the replacement of the Eaton UPS at the IWTC. I see there is a brand name justification, does this mean that only Eaton Corporation is allowed to quote for this?
Answer: Per the Brand Name Justification and Combined Synopsis/Solicitation section 52.212- 1 Addendum, vendor shall certify that it is a Manufacturer Authorized Partner and provide a current authorized reseller certification of Eaton products.
File details come from the government source that posted it. Updated .