RFI LOG (08 Oct).xlsx
XLSX spreadsheet 16 KB Posted
- Attached to
- Replace Aircraft Apron Lighting with LED Federal contract opportunity
- Solicitation number
- FA487720R0047
About this file
This document contains questions and answers regarding a solicitation to replace aircraft apron lighting with LED fixtures at Dover Air Force Base. The contractor will furnish all parts, labor, tools, transportation, materials and equipment to replace two hundred fifty-four existing light fixtures on thirty-three light poles with LED lighting. Questions covered pole heights, wind loads, lighting standards, drawings, controls, fixture specifications, wiring, foundations and the duration of the project. Responses clarified requirements for photometric design, wiring and control replacements, and indicated a one hundred eighty-two day performance period. The estimated value is between $1,000,000 to $5,000,000. Proposals are due on September 23rd, 2020. This is a one hundred percent small business set-aside conducted by the Department of the Air Force Air Combat Command.
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Sheet1
RFI LOG
Solicitation FA487720R0047
Title Relamp Apron Lighting with LED
| RFI # | Question | Contractor | Government Response |
| 1 | Pole height along with foundational depth required for each pole area? | United Lighting Technology | See all As-built drawings, PDF files. No AutoCAD drawings located. Drawings only in PDF, drawings created in1985 prior to wide AutoCad use. |
| 2 | Wind loads for poles ( is it all the same at 80mph or is it different for each area? | United Lighting Technology | Wind loading to be determined by structural engineer. |
| 3 | We understand the 1 fc minimum and 0.2 fc minimum for areas, is there a specific DMAFB lighting standard or is the IES outdoor lighting for airport environment standard acceptable? | United Lighting Technology | Use the 1fc & 0.2fc. Reference SOW Section 1.1, para: c,d,f,and i. |
4 Will we receive AutoCad drawings(plans + elevations + sections, where appropriate) for the respective airfield and surrounding areas? United Lighting Technology See all As-built drawings, PDF files. No AutoCAD drawings located. Drawings only in PDF, drawings created in1985 prior to wide AutoCad use.
5 Lighting controls, is there a specific protocol that is preferred / required or existing at the base? United Lighting Technology Photocells on each pole is the primary lighting contol. Exterior push button override switch installed in cabinet is also required. See SOW Section 1.1, para: r.
6 Is there a Specification Sheet for existing lights on site? United Lighting Technology Fixtures are NOT to be replaced on a 1-for-1 basis. See all As-built drawings, PDF files. No AutoCAD drawings located. Drawings only in PDF, drawings created in 1985 prior to wide AutoCad use.
| 7 | Are there Specification Sheets of the existing luminaires with mounting details? | United Lighting Technology | See RFI Answer 6. |
| 8 | Are thre photos of luminaires onto the masts showing mounting arrangement and area? | United Lighting Technology | No such photos exist. Available photos are in Attachment #4 of the RFP. |
| 9 | Will the base require a replacement of the existing contactors, contactor cabinets, and photocells at the base of the poles to control the fixtures? | Musco Lighting | Contactors & photocells and cabinets to be replaced. Photocells on each pole is the primary lighting contol. Exterior push button override switch installed in cabinet is also required to be replaced. See SOW section 1.1, para: r. |
10 Is the intent to then also replace the wiring inside the existing poles? Musco Lighting Wiring to be replaced. See SOW section 1.1, para: h.
| 11 | Can an offer with materials that deviate from the Buy America Act be submitted? If so, is there a rubric demonstrating how this offer will be evaluated? | United Lighting Technology | Please review contract clauses 52.225-9 and 10 for the process for submitting an offer that requests an exception to the Buy American Act (BAA) and how they will be evaluated. Please note if doing so, offers should submit a complete alternate offer as described in 52.225-10(d). All lighting fixture specifications and warranties are to be met. All cybersecurity screening and equipment vetting must be maintained. |
| 12 | Please provide airfield plans/as-builts. These are required for creating photometrics to determine fixture type, quantity and pole height (3-1 to 3-9). | WideField Technology Inc | Fixtures are NOT to be replaced on a 1-for-1 basis. See all As-built drawings, PDF files.No AutoCAD drawings located. Drawings only in PDF, drawings created in1985 prior to wide AutoCad use. |
| 13 | Do fixtures need to have shields? Fixtures on Helicopter Ramp (5-1 to 5-4) and Whiskey Ramp (1-1 to 1-8) have shields but all other locations DO NOT have shields. | WideField Technology Inc | Not required, Photometric design will dictate requirement for shields. |
| 14 | Please provide pole height for Fuels POL Truck Ramp (F-1 to F-2). | WideField Technology Inc | 80 ft. |
| 15 | Pole 1-8 is shorter than the other 7 poles on the Whiskey Ramp; please provide height for pole 1-8? | WideField Technology Inc | 40 ft. |
| 16 | Please provide product information for existing master photocell controls. | WideField Technology Inc | See As-built drawings. Photocells on each pole is the primary lighting contol. Exterior push button override switch installed in cabinet is also required. See SOW section 1.1, para: r. |
| 17 | Specifications table count total states #254, actual count based on table is #278. | WideField Technology Inc | Fixtures are NOT to be replaced on a 1-for-1 basis. Engineering photometric design and fixture selection determines fixture count. See all As-built drawings, PDF files. No AutoCAD drawings located. Drawings only in PDF, drawings created in1985 prior to wide AutoCad use. |
| 18 | Existing Lamps/Fixtures do not match site visit conditions on Helicopter Ramp (5-1 to 5-4), Customs Ramp (4-1 to 4-2) and Whiskey Ramp (1-1 to 1-8) (SEE ATTACHMENT) | WideField Technology Inc | See RFI Answer 17 |
| 19 | The DMAFB Airfield Lighting Design Specification, Pole Group 2 & F does not have a minimum footcandle requirement for the Fuels POL Truck Ramp. Can you please advise whether this area has a 0.2 footcandle or 1.0 footcandle minimum? | WideField Technology Inc | 1.0 footcandle minimum in center section, 0.2fc on perimeter, see Attachment #3 _DMAFB Lighting Layouts(f) |
20 Regarding the new poles on the A-10 ramp (poles 3-1 – 3-9) what is the maximum pole height allowed? Phoenix Lighting Maximum height: 150’, Specific height to be determined by structural and photometric engineering analysis.
See also RFI 27.
21 Regarding the top of the new poles on the A-10 ramp (poles 3-1 – 3-9) will the new poles have a lowering device, use a basket, or a set of standard cross arms? Phoenix Lighting Standard cross arms are to be specified.
| 22 | Project notes “replaces two hundred fifty four (254) existing fixtures”, however “Attachment 4: Airfield Stadium Light Map” current fixture count actually totals 278. Is 254 the targeted new fixture count and is there a preference where the 24 piece reduction comes from? | Phoenix Lighting | Fixtures are NOT to be replaced on a 1-for-1 basis. Engineering photometric design and fixture selection determines fixture count. See all As-built drawings, PDF files. No AutoCAD drawings located. Drawings only in PDF, drawings created in1985 prior to wide AutoCad use. |
| 23 | Will fixtures be replaced on a 1-for-1 basis or is it acceptable to reduce fixture count so long as lighting requirements are met? | Phoenix Lighting | See RFI Answer 22 |
| 24 | What is the light loss factor (LLF) to be used for the photometric layouts? | Phoenix Lighting | For aprons include computer-generated photometric analysis of the "designed to" |
values in accordance with IES RP-33 for the "end of useful life" of the luminaire installation using a light loss factor of 0.81.
Reference: UFGS 26 56 00 Exterior Lighting, Section: 1.5.8 Photometric Plan
| 25 | Will fixtures require a socket for a photocell? | Phoenix Lighting | Yes, photocells are the primary lighting contol. Exterior push button override switch installed in cabinet is also required. See SOW section 1.1, para: r. |
| 26 | What is the wattage of the current fixtures? | Phoenix Lighting | Varies. See As-built drawings for reference. |
| 27 | Would cutting of poles to 3-1 through 3-9 and re-attaching or installing a new Arm and man cage be acceptable as opposed to replacing the poles? | DAP Construction | Pole height reduction is acceptable only if designed by licensed structural engineer. Stamped engineering design must be submitted for approval. |
| 28 | Does the government want all lighting associated controls and electrical breaker panels for each pole replaced with new? | DAP Construction | Wiring, contactors & photocells and cabinets to be replaced. See As-built drawings. Photocells on each pole is the primary lighting contol. Exterior push button override switch installed in cabinet is also required. See SOW section 1.1, para: r. |
| 29 | On the site visit it was noticed that some poles have red obstruction lights on top of them and some don’t. Please identify which poles will need Red obstruction lights on top? In | |
| addition will the obstruction lights run 24 hours a day or just at night, as well as are they flashing or solid lit? | DAP Construction | Red obstruction lights are to be removed and same replaced. Existing to be reinstalled & reused.See SOW Section 1.1, para: g. |
| 30 | It appears there is an old maintenance down light above some of the lighting control panels mounted on the side of most of the poles. Does the government want this light replaced | |
| with a new led fixture for maintenance purposes on the poles that have them or just eliminate them? If replacement is needed will they need to be switched or photo cell controlled to runevery night on applicable poles or add to all poles? | DAP Construction | Cabinet down lights are not to be replaced. Down lights are to be removed. See SOW section 1.1, para: g. |
| 31 | How would you like us to provide a cost to the potential repairs and/or replacement to poles and foundations that are determined by the engineer not to meet structural requirements after that assessment for the poles not to be replaced in scope of work? | Miura Contracting | Assume that no additional poles shall be replaced when pricing the proposal. At such time a structural engineering analysis reveals that replacement of a pole is required, an addendum will isssued post award. |
| 32 | If the nine poles being replaced require new foundations, to what extent do the existing foundations need to be removed? | Miura Contracting | Structural engineering analysis determines foundation replacement requirement. |
| 33 | Does the foundation for nine light poles need to be relocated? | Miura Contracting | See RFI Answer 32. |
| 34 | Would it be acceptable to configure the new pole base to adapt to the existing foundation? | Miura Contracting | Structural engineering analysis determines foundation replacement requirement. |
| 35 | Considering the new pole would require a new foundation, would the existing foundation need to be removed? | Miura Contracting | See Answer 32. |
| 36 | If the existing foundation were to be removed, could the conduit and conductors feeding the pole be used by installing a pull box prior to the foundation? | Miura Contracting | Yes. Conduit and conductors feeding the pole to be used by installing a pull box prior to the foundation. |
| 37 | Who will be responsible for the removal and replacement of all the other equipment and devices currently mounted to the pole? | Miura Contracting | Electrical contractor to remove and replace other equipment. |
| 38 | Where are these pole powered from? (point of connection.) | Miura Contracting | Poles are powered from different airfield circuits. There is not one circiut that feeds all the apron lights. |
Reference: SOW Section 1.1, para: i.
| 39 | On the Helicopter Ramp: The poles have lowering devices. Are these all currently operational? | Miura Contracting | Lowering rings are operational. | |
| 40 | Is it the intention to replace the lowering devices? | Miura Contracting | Lowering devices are to remain, not to be replaced. | |
| 41 | The specification (attachment 1) page 11 of 41 and the sample time line on page 12 of 41, which appears to be project specific, shows 380 days (text) and 56 weeks (time line). | |||
| What is the duration of this project? | Rock Gap Construction | 182 Days. | ||
| 41 | Will a bid guarantee be required for this proposal and, if so, for how much must it be and who is to be named as oblige | Rock Gap Construction | IAW FAR 52.228-1 a Bid Guarantee is required and shall be 20% of the bid price or $3,000,000 whichever is less. Please see page 48 and 49 of the solicitation for additonal information. |
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