Question_1-15.pdf

1. Question: On Drawing E-601 – D there is a 400Hz Frequency Converter and an Aircraft Cable Reel and Aircraft Cable. I could not find where it states the length of Cable. It is very important to know for costing and also sizing the Cable Reel. Please provide length of 400Hz Aircraft Cable.

1. Answer: Provide 70-foot-long cable.

2. Question: Drawing E-601-D One-Line Diagram shows a 400 hertz converter feeding to a cable reel with a 400 hertz cable. What type of cable reel is required as there appears to be no specification or drawing notes describing this cable reel?

2. Answer: Provide motorized cable reel per keyed note six on sheet E-105. Cable reel shall be capable of supporting 70-foot 400Hz aircraft cable. Cable reel shall be motorized for both the feed and retrieval.

3. Question: UFGS Specification 26 35 43 Paragraph 2.2 Aircraft Power Cable Assembly describes the type 400 hertz cable to provide. What is the required length of this cable?

3. Answer: Provide 70-foot-long cable.

4. Question: UFGS Specification 26 35 43 Paragraph 2.1.1.7 describes a 90 kva converter while Paragraph 2.1.1.9 describes a 180 kva converter. Which size is required for this project?

4. Answer: Provide 90 KVA converter per keyed note one on sheet E-105.

5. Question: UFGS Specification 26 35 43 Paragraph 2.1.3.3 Digital Instrumentation includes description for THD Metering. Is this THD Metering required? Design Guide Notes state this type metering “is to be supplied only if specifically required by the customer. It is expensive and not normally needed.”

5. Answer: THD will not be required.

6. Question: On drawing E-101-D, detail A-1, a 400 HZ converter is shown. Please advise if the converter needs to be 90-kVA or other power rating.

6. Answer: Provide 5 kVA tabletop converter. Refer to cut sheet in amendment 1 for basis of design.

7. Question: On drawing E-104-D, detail A-3, a 400 HZ converter is shown. Please advise if the converter needs to be 90-kVA or other power rating.

7. Answer: Provide 5 kVA tabletop converter. Refer to cut sheet in amendment 1 for basis of design.

8. Question: On drawing E-105-D, key notes 5 and 6, please advise that if the receptacle mount at 38-feet means 38-feet above the ground.

8. Answer: Mount receptacle 38 feet above finish floor.

9. Question: In specification UFGS 26 35 43, paragraph 2.1.1.9 the efficiency is based on 180-kVA, but the power rating on paragraph 2.1.1.7 is 90-kVA. Please advise correct rating of the converter.

9. Answer: Provide 90 KVA converter per keyed note one on sheet E-105.

10. Question: Please advise if the UFGS 26 35 43, pertains to the hangar converter or the shop converters.

10. Answer: UFGS 26 35 43 pertains to the hangar 90 KVA converter.

11. Question: Specification 028213, Paragraph 1.4.1 references a 2014 Asbestos Management Plan and a 2017 Report of Asbestos Related Services but these reports were not included in the project documents.

Will these be issued in an amendment? 028213, Para 1.4.1

11. Answer: See amendment 1 2014 Asbestos Management Plan and the 2017 Report of Asbestos Services for reference only.

12. Question: Note 4 says, "IT IS STRONGLY RECOMMENDED THAT THE WINNING BIDDER

OBTAINS A COPY OF THE DOCUMENT AND CONSULT A GEOTECHNICAL ENGINEER

REGARDING ITS USE OR APPLICATION TO THEIR INTENDED CONSTRUCTION

ACTIVITIES." Can the geotechnical report be made available to bidders to facilitate more accurate pricing of earth work and foundation operations? Note 4/B-100

12. Answer: See amendment 1 geotechnical report for reference only. Bidders must propose based on specifications and drawings.

13. Question: A pre-bid substitution request for performance coating was received.

13. Answer: Proposals shall be based on the contract plans and specifications as posted. After award, the awarded General Contractor (GC) may submit a substitution request, but only per the substitution request process as defined in the Division 1 Specification Section (01 33 00) describing that process.

14. Question: In Room 115 the drawing shows a tool crib mobile shelving system. Is this part of the bid or will it be bid out separately?

14. Answer: Rails for the Mobile High Density Storage are a part of the general construction package, RE: Structural drawings. Mobile High Density Storage Unit is part of FF&E to be procured separately. Basis of Design is Spacesaver Mechanical Assist High Density Mobile Storage.