Q_A_2nd_Amendment_Textile_Warehouse_20260402.pdf

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Amendment 02 Textile Warehouse Office Addition and Renovation
Solicitation number
W91QF426BA001
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This is a Questions and Answers document for an Invitation for Bid (IFB) regarding a fire alarm replacement project at a textiles warehouse. The document addresses bidder inquiries submitted on March 24, 2026, with responses issued on April 2, 2026.

The Q&A addresses technical clarifications across four categories: Electrical Panel & Grounding, Lighting & Conduit, Finishes, and Drawings & Specifications. Regarding electrical work, DPW confirmed that the existing interior breaker panel may be reused and relocated to a new location, provided new compatible breakers and an updated panel schedule are supplied and the panel is mounted with code-compliant working clearance per NEC 110.26. A junction box on the exterior wall is acceptable as a splice/extension point if sized per NEC 314 and kept fully accessible. For grounding, the bonding conductor from the new electrical panel to the network equipment cabinet over approximately 175–200 feet must be sized per TIA-607-B standards (350 kcmil), which while excessive, is technically required by code for that configuration per NEC 250.94. Regarding lighting and conduit, exposed conduit painting is the painting contractor's responsibility, and all conduit other than pendant conduit must be concealed within walls or ceilings per Revision 2 on Sheet E2. Sheet E2 fixture schedules have been combined with matching designations (A, B, C, D, E, and F) for vendor pricing coordination. For finishes, the painted warehouse walls referenced in the schedule refer only to approximately 12 linear feet of new wall behind the drinking fountain on the south side, designated as wall type "1C" in Addendum #2. All stained wood doors are to be factory finished and matching. Temperature control work is local to the building only with no integration into base-wide HVAC automation systems.

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B1146 Bidder Site Visit Questions Page 1 of 3 2 April 2026

QUESTIONS AND ANSWERS

IFB TEXTILES WAREHOUSE SITE VISIT

ADDED FIRE ALARM REPLACEMENT

Questions: 24 MARCH 2026, Answers: 2 April 2026

Electrical Panel & Grounding

Interior building Breaker panel to be relocated. Is a J-box on the exterior wall where the majority of the existing conduits are routed acceptable for an extension point to extend to the new panel?

Answer: DPW: Yes, installing a junction box on the exterior wall is acceptable as a splice/extension point, provided:

• The J-box is sized per NEC 314 for conductor count and conduit fill.

• All existing conduits feeding the panel are extended to the J-box in a code-compliant manner.

• Conductors are extended as required to reach the new panel location.

• The J-box remains fully accessible (not concealed behind finishes).

Please confirm that the existing panel is acceptable to re-use and move to the new location. Obviously, new breakers will need to be provided and a new panel schedule created as a result of the work.

Answer: Yes, the existing panel may be reused and relocated. The contractor shall:

• Provide new breakers compatible with the reused panelboard.

• Provide a new panel schedule reflecting all updated circuiting.

• Ensure the panel is mounted at a code-compliant working-clearance location per NEC 110.26.

Reuse is acceptable unless field conditions show damage or deficiencies.

Grounding to the NEC- from the new proposed electrical panel location to the new proposed NEC cabinet location is approximately 175-200’ with vertical rise/fall. Per the TIA- 607-B Standard, The grounding system for the NEC would be required to be 350 kcmil. This seems absurdly excessive in terms of sizing, as this would be the ground for a 2,500-amp electrical service. Please confirm that this is the required size of the NEC grounding conductor back to the electrical panel? Can a separate ground rod be driven below the NEC for connection to this system?

B1146 Bidder Site Visit Questions Page 2 of 3 2 April 2026

Answer: Keep telecom in its current new-office location while service stays put), the TBC/TBB must bond the telecom enclosure to the service entrance’s grounding electrode system over ~175–200 ft vertical/lateral run.

NEC 250.94 and TIA-607-B require a single bonding path for faults, which can’t be split or isolated. If no alternative grounding electrode is available closer to the telecom, the bonding conductor must be sized per TIA 607-B, to maintain adequate fault capacity over the long distance

That sizing, while “absurdly excessive,” is technically required by code for that configuration.

Lighting & Conduit

Per Drawings Page E2: Detail B1/A4 notes the mounting height of the pendant fixtures in the office as “Mount at 9’4” to bottom of fixture. RE architectural for location: Lights to be mounted on vertical hard metal conduit. Paint conduit to match ceiling. No surface mounted conduit to be used to conceal” (the note stops.) Is EC to paint conduit, or will painting contractor cover this? Also, what is meant by the last line? Depending on the depth of the roofing system and the ability to drill holes for routing, recessed conduit may not be possible.

Answer: The painting of exposed conduit shall be performed by the painting contractor, consistent with the architectural finishes, unless the General Contractor assigns this task differently during coordination.

The original note “No surface mounted conduit to be used to conceal” has been revised to:

“All conduit other than pendant conduit shall be concealed within the wall or ceiling.”

Please see Revision 2 on Sheet E2, Detail B1/A4, where the updated verbiage has been incorporated.

Page E2- Light fixture Schedule- Can you please assign fixture designations to the bottom schedule, as it has the information for the vendors to get pricing from. Need to make sure they match up to the one above.

Answer: Yes. Fixture designations must be assigned to the lower schedule so they correspond directly with the upper fixture schedule. Please see the revised clouded area:

the two schedules have now been combined into one main fixture schedule. Sheet E2 now includes the matching fixture designations (A,B,C,D, E, and F) needed for vendor pricing and construction coordination.

B1146 Bidder Site Visit Questions Page 3 of 3 2 April 2026

Finishes

On the finish schedule the existing warehouse walls are called to paint on the east, south and west. Is this in reference to the new sheetrock added at the existing office spaces or the existing warehouse walls?

Answer: DPW: These “east, south and west” painted walls only refer to those elevations of the new wall behind the new drinking fountain and other water supplied elements set adjacent to the south wall of the existing warehouse structure (about 12 lineal feet). The wall type was incorrectly noted as “C1”. This is modified in Addendum #2 to read “1C” on the Sheet A3 Enlarged Plan, and is reflected in the added designation 1C under Wall Type 1, Sheet A5.

Will the wood doors be factory finished or does it need to reflect a contractor including finishing?

Answer: DPW: The stained wood doors are all to be factory finished and matching. This note is added to the Door Types on Sheet A5 of the Revision #2 drawings.

Drawings & Specifications

The scales on several of the drawings are inaccurate. Will a drawing revision correcting this be provided in an amendment?

Answer: DPW: Comment is non-specific as to location. No errant drawing scales discovered.

There does not appear to be a temperature control specification. Is the control work just local within this building and does it not integrate into any base wide control automation/monitoring system?

Answer: DPW Mechanical: Correct, no integration into the post HVAC automation, only local controls.

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