Tab 04 SOW.pdf

Contract: Date: May 12, 2025 Revision 0

Task Order Statement of Work

Revision History Revision General Description of

Content Section Affected Issued Date Status i Procurement and Legal Review All Pending Submission

0 Initial Release All 05/12/2025 Submitted to Procurement

1 Task Order Title:

Electrical Construction Services for 55kVA Power Conditioner Installation for DAS equipment

2 Purpose of Work to be Performed:

The National Aeronautics and Space Administration (NASA) at Langley Research Center (LaRC) is seeking construction services to deliver an implementation package with a qualified contractor who specializes in high voltage component replacement and the installation of a power conditioning system for wind tunnel operations. The selected contractor will provide all necessary engineering, labor, equipment, and materials to fulfill this Statement of Work (SOW).

The objective of this project is to replace outdated and underperforming inventory with options that enhance reliability and positively impact data collection for the mission.

NOTE: The configuration for power going into the power conditioner is a 480v three phase three wire plus ground. The output configuration the facility would require from the power conditioner is a 208/120V three phase four wire plus ground.

3 Scope of Work:

The scope of this project is to:

Field Verification and Inspection of GFE Equipment:

Perform thorough field verification of all work areas.

Inspect and inventory all GFE equipment and materials to ensure that all items are on-hand and accounted for. See section 6 for GFE.

Prework Scope (performed prior to DAS outage):

Lockout Tag Out (LOTO) and demolish existing MG Set from its concrete foundation located in building 648 room 111. See unit information below:

3.3.1 Dispose asset and associated materials of offsite.

NOTE: Concrete foundation to be reused. Line-side and load-side conduits and feeder cables to be reused.

Rework existing MG Set line-side and load-side conduits and feeder cables as required in preparation for the new GFE 55 kVA Power Conditioner.

3.4.1 Add termination and/or splice enclosures as needed.

Perform insulation resistance testing (megger) on the 480V feeder conductors and the 208V feeder conductors to ensure and validate their integrity.

Building No. Unit

Brand/ Manufacturer

Serial No. Model

Est. Year of Install

Drawing Sheet

648 MGM00022

General Electric DH162076 5FR4365A23Y9 1998 N/A

Rig new power conditioner into the facility, down into room 111, and up onto the existing MG

Set’s concrete foundation as referenced in 3.1.

3.6.1 Properly anchor power conditioner to the foundation.

3.6.2 Remove the existing yellow handrail system located at the stairs/ramp entrance of room 111 to facilitate the rigging and installation of the new Power Conditioner. Once the installation of the new Power Conditioner is complete, the handrail shall be re-installed, welded, bolted, and re-painted as required.

Extend the existing 480V 3-Phase (3-PH) line-side feeder conduit and wiring and connect and terminate it to the line-side terminals of the new Power Conditioner.

NOTE: Feeder previously supplied power to the MG Set.

Extend the existing 208Y/120V 3-PH load-side feeder conduit and wiring and connect and terminate to the load-side terminals of the new Power Conditioner.

NOTE: Previous output from the MG Set feeder

OUTAGE – During an after-hours outage of the 480V panelboard P-1000 (located on the 3rd floor, room 312), replace the existing 125A 3-pole circuit breaker (which previously fed the MG Set’s feeders) with a new 90A 3-pole circuit breaker (Square D P/N# EGB34090).

Energize the new power conditioner and perform local voltage checks and local functional tests.

3.10.1 Once complete, de-energize and LOTO the new power conditioner until all new work is completed in room 311.

DAS Outage Scope

Manually operate the handle of the transfer switch (T.S.) (located in room 309) from its current “down” position (ON) to the “middle” position (OFF) and LOTO.

NOTE: This will de-energize the existing power conditioner located in room 311.

3.11.1 Disconnect incoming #250KCMIL feeder conductors (and flexible conduit) and retain (for future use).

3.11.2 Disconnect all outgoing branch circuit conductors (and flexible conduits) and retain (for future use).

Remove power conditioner from the site and dispose of. See unit information below:

Inside room 311, install two new 42-circuit panelboards. The panelboards shall be surface mounted on the wall in the location of the (previously demolished) power conditioner. The panelboards shall be named Panel A and Panel B, matching the previous panelboards that were contained within the (previously demolished) power conditioner.

3.13.1 The new panelboards shall be populated with branch circuit breakers that match the size, type and location of the circuit breakers from the (previously demolished) power conditioner.

Building No. Unit

Brand/ Manufacturer

Serial No. Model

Est. Year of Install

Drawing Sheet

648 UPS00005

Computer Power

Systems Corp 26488

SYS 3 B0106405-

1110B 1998 N/A

NOTE: The new panelboards shall be configured as: 225A, 208Y/120V, 3PH, 4W, 60HZ, 42 CIR, CU BUS, BOTTOM FED, 150A MB, 22 KAIC FULLY RATED, 200% CU NEUTRAL, SURFACE MOUNT, DOOR HINGED-TO-BOX WITH INNER HINGED DOOR

Inside room 311, install one (1) new “termination enclosure” on the wall, but at floor level, just above the location where all of the existing flexible conduits (previously disconnected from the power conditioner) emerge from the raised computer-room floor tiles, and directly below the two new panelboards.

3.14.1 The enclosure shall be 42” wide x 24” tall x 8” deep.

NOTE: The purpose of the “termination enclosure” is to provide a means and method for landing (and then extending) all existing conductors, both feeder conductors and branch circuit conductors, that emerge from under the raised flooring. All existing conductors will land on properly sized terminal blocks inside the “termination enclosure”. Using new conductors, the feeder and branch circuits will be extended up into the two new panelboards (mounted directly above the “termination enclosure”) and will be terminated to their corresponding circuit breaker.

3.14.2 From the existing (empty) enclosure located next to the existing T.S. install new feeder conductors through the existing (under-floor) 3” flexible metal conduit, over to the existing (under-floor) filter-capacitor junction box. The new feeder conductors shall be 4 x 2/0 AWG THHN CU, 1 x #2 AWG equipment ground, and 1 x #2 AWG isolated ground.

3.14.3 From the existing (under-floor) filter-capacitor junction box, furnish and install new 3” flexible metal conduit (with new feeder conductors) over and up to the new GFE (wall-mounted) 2-door termination enclosure. New feeder conductors shall be 4 x 2/0 AWG THHN CU, 1 x #2 AWG equipment ground, and 1 x #2 AWG isolated ground.

3.14.4 Inside the new GFE 2-door termination enclosure, the new #2/0 AWG feeders shall land on a GFE 4-pole, 600V, 310A power distribution terminal block. The line-side of the terminal block shall provide one port per pole to accommodate the incoming #2/0 AWG conductors. The load-side of the terminal block shall provide two ports (per pole) that will accommodate the outgoing two #2/0 AWG conductors (per pole). One set of #2/0 AWG feeders shall feed new Panelboard A and the other set shall feed new Panelboard B.

3.14.5 Inside the new “termination enclosure” furnish and install, as required, various power distribution terminal blocks (properly sized) along with various branch circuit terminal blocks (properly-sized) in an effort to provide a termination point for all incoming feeders and branch circuits.

3.14.6 Inside the new “termination enclosure”, land all incoming conductors (both feeders and branch circuits) that emerge from under the raised flooring. Label each incoming conductor at the point where the conductor lands on its particular terminal block.

3.14.7 Inside the “termination enclosure” label all outgoing conductors. Every conductor, both on the line-side of the terminal blocks as well as the load-side of the terminal blocks, shall be labeled to indicate its panel and circuit number. The load side of the terminal block labels should identify the rack or equipment being utilized by the circuit.

Using new #2/0 AWG CU conductors, extend a set of feeders (3 phase 4 wire plus equipment ground and isolated ground) up to the main circuit breaker of each of the two new panelboards.

Extend each branch circuit, using the same sized conductors as the existing, up into the appropriate panelboard and terminate each branch circuit onto the same circuit number as was previously terminated to (in the old power conditioner).

Inside the “termination enclosure” label all outgoing conductors. Every conductor, both on the line-side of the terminal blocks as well as the load-side of the terminal blocks, shall be labeled to indicate its panel and circuit number. The load side of the terminal block labels should identify the rack or equipment being utilized by the circuit.

Remove LOTO from circuit breaker #4 inside panel P-1000 and energize the new 55 kVA power conditioner in room 111. Remove LOTO from the T.S. (located in room 309) and operate the handle from the middle “off” position to the upper “on” position.

NOTE: This will pass 208V 3-phase power from the new 55kVA power conditioner to the two new panelboards.

Energize each branch circuit, one at a time, performing voltage checks and functional checks at the

DAS equipment.

Install new phenolic tags on each of the following pieces of equipment indicating its circuit characteristics and where it’s fed from:

3.20.1 55 kVA Power Conditioner (and any associated enclosures)

3.20.2 Transfer Switch

3.20.3 Underfloor capacitor and junction box

3.20.4 Shunt-Trip Circuit Breaker Enclosure

3.20.5 E-Stop Contactor Enclosure

3.20.6 Panel A

3.20.7 Panel B

4 Description of the Work to be Performed:

The Contractor shall perform the following task requirements:

Proposal The Offeror shall provide to the Government, at minimum, a proposal that addresses the following:

a. Cost schedule providing work breakdown structure that identifies, hours, labor rate, travel, per diem, and direct cost per deliverables.

b. Name and qualifications of the Designer of Record (DOR). DOR(s) shall be licensed and in good standing with the State of Virginia for the duration of this task order.

c. Internal approach to quality control and quality assurance.

d. Project milestone schedule, coordinated with item a. above, that provides deliverables within the period of performance identified. This will form a basis for progress payments and validation of performance.

Kickoff Meeting

Attend a kickoff meeting within 10 business days after the notice to proceed. This meeting will be conducted via hybrid teleconference using Microsoft Teams between LaRC personnel, as identified by the technical point of contact, and the Contractor’s project team to discuss project scope, logistics, and plan site visits.

Project Meetings

Contractor’s project manager shall schedule project meetings to be held between LaRC personnel, as identified by the technical point of contact when requested or when a potential change in scope arises during the project. The purpose of these meetings is to discuss status, potential issues, schedule look ahead and issues arising during the project. Upon the completion of each project meeting, the Contractor’s project manager shall prepare an email with meeting minutes.

Project Schedules

a) Provide project construction schedule reflecting project duration, procurement, construction, and project closeout milestones.

Site Visits All site visits shall be coordinated with and approved by the Technical Point of Contact (TPOC).

All site visits, findings, and concerns shall be documented and submitted to the TPOC for review within ten (10) business days after completing visit. The contractor shall submit a completed NASA Langley Form (LF) 103, Visitor Badge Request or equivalent, no later than three (3) business days in advance of required site visit. LF103 (or equivalent) shall be submitted to the TPOC for review and approval. All visitors shall be in good standing with local and federal authorities. ID and credentials are required to be on person at all times and prior to entry. Refer to LF103 for additional clarification.

Project Collaboration, Documentation and File management All project records, files, and documentation shall be managed using a NASA provided Box folder and project issued account administered and maintained by the technical point of contact and contractor’s Project Manager (PM). The TPOC will provide instructions to the contactor at the time of award on how to create an individual account for access to the system. Folder structure for management of files and deliverables will be discussed at the time of award with consideration of input from the contractor such that all needs are met. All deliverables shall be provided in PDF and native file format.

Drawings

Drawings shall be developed and produced by the contractor to the government upon completion of construction. Notes on drawings should be minimized and addressed where possible through project specifications, i.e., no on drawing specifications. Drawing templates and geographic information system (GIS) data will be available to the contractor upon request to the government.

Construction Requirements

Comply with the requirements of NASA Standards; SSC Safety Procedures, Requirements and Standards; the National Fire Protection Agency (NFPA) family of codes; American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) guidelines; International Building Code (IBC); International Plumbing Code (IPC); International Mechanical Code (IMC);

National Electrical Code (NEC); Environmental Protection Agency (EPA); Occupational Safety and Health Administration (OSHA); ANSI/TIA/568-C.1, Commercial Building Telecommunications Cabling Standard; ANSI/TIA/EIA-569-B, Commercial Building Standard for Telecommunications Pathways and Spaces; ANSI/J-STD-607-A, Commercial Building Grounding (Earthing) and Bonding Requirements for Telecommunications; ANSI/TIA-942, Telecommunications Infrastructure Standard for Data Centers; and all other codes, documents, and standards under or referenced by these codes and standards.

Quality Control

Completed and signed punch lists shall be submitted during the construction process as to ensure all aspects are addressed. Develop and utilize appropriate discipline-specific checklists during construction and quality control of each submittal, as applicable, as part of the project documentation.

Safety & Security

For the safety of staff, customers, and visitors, the contractor shall be responsible for installing and maintaining temporary construction barriers which must be maintained throughout the life of the construction project. The contractor will be given room for material lay down; however, NASA is not responsible for the safety or security of the materials or equipment. The project is being installed in an active building complex, and the contractor shall take all reasonable steps to ensure a minimal amount of interference to those facilities. The Contractor and all personnel must report to the LaRC reception center to obtain all necessary badging for access to the site.

Assumption of Risk The contractor shall assume all risk during construction; any losses from manmade hazards will be the responsibility of the contractor. The Contractor is responsible for all risks for incidental damage to adjacent structures. The contractor shall be responsible for all repairs and repair costs associated with damaged property at no cost to the government. Assumption of risk shall also include risks associated with downtime for testing and/or other requests per Government discretion and schedule risks due to weather events. Furthermore, the contractor is fully responsible for his own design and construction and is liable for its faults.

Commissioning Activities The following activities describe the required commissioning tasks during construction and general order in which they occur. The contractor shall coordinate all commissioning activities.

a) Scoping meeting

All members of the construction team that will be involved in the commissioning process meet and agree on the scope of work, tasks, and schedules.

b) Commissioning Plan The Commissioning Plan provides guidance in the execution of the commissioning process.

c) Pre-activation checklists The contractor shall submit for approval a Pre-Activation Checklist. Once approved the pre-activation checklist shall be completed and approved before the electrical systems are activated.

d) Functional Performance Tests The contractor shall develop specific equipment and system functional performance test procedures and then implement and document the test results.

e) Deficiencies and Resolution The contractor shall document items of non-compliance in materials, installation, or operation and then correct these items. At the contractor’s expense, the equipment or systems shall be retested.

f) Warranty Review

g) Commissioning report Upon completion of the 100% Construction Deliverables, the contractor shall submit a commissioning report which includes a complete documentation and summary of the entire commissioning process as well as all supplementary documents such as check sheets, logs, etc.

5 Deliverables/Milestones:

The Contractor shall deliver the following:

Proposal

Kick Off Meeting Minutes

Site Visits and Asset Data

Progress Meetings Minutes

Acceptance testing for functionality.

Close-out submittals

As-built drawings

Punchlist 100% complete

Areas cleaned and finished.

Equipment manuals

Warranty and other documentation

Unless specified otherwise the deliverables are due to the TPOC as established by the construction schedule approved at the time of award. Changes to delivery dates shall be request by the contractor and approved by the CO or COR. Changes to the completion date or contract performance period must be approved by both the Contractor Officer Representative and/or the Contracting Officer.

6 Government Furnished Items:

Langley Form LF103, U.S Citizen and Lawful Permanent Resident (LPR) Visitor Badge Request Form or equivalent.

Current job specific site drawings One (1) new 55 kVA Power Conditioner:

New power conditioner shall be a Powervar ABC55.0-40D20Y (P/N# 74055-02R) Two (2) 225A Panelboards:

The new panelboards shall be configured as: 225A, 208Y/120V, 3PH, 4W, 60HZ, 42 CIR, CU

BUS, BOTTOM FED, 150A MB, 22 KAIC FULLY RATED, 200% CU NEUTRAL, SURFACE

MOUNT, DOOR HINGED-TO-BOX WITH INNER HINGED DOOR.

New panelboards shall be populated with branch circuit breakers to match the size, type, quantity, and location of the existing branch circuit breakers found within the existing power conditioner’s Panel A and Panel B (in room 311).

One (1) “Termination Enclosure”:

The enclosure shall be 42” wide x 24” tall x 8” deep, with two hinged doors and no vertical center support between the doors. The enclosure shall contain a full back panel.

One (1) lot of Power Distribution Blocks (for inside the “Termination Enclosure”)

One (1) lot of Terminal Blocks and Accessories (for inside the “Termination Enclosure”) One (1) 480V, 90A, 3-pole, circuit breaker, Square D EGB34090 One (1) lot of miscellaneous materials, fittings, feeder conductor extensions, branch circuit conductor extensions, enclosures, hardware, wire labels, phenolic tags, lugs, ferrules, blades, bits, and consumables

7 Other information needed for performance of task:

The Contractor’s schedule shall include an allowance of 10 business days for Government review and approval of all submittals.

All teleconference meetings will be recorded, for quality control purposes, and made available to participants at the conclusion of the meetings. This recording does not replace any requirement for formal meeting minutes.

The contractor shall schedule meetings and site visits at least two weeks in advance, distribute an agenda at least two (2) business days prior to project meetings and submit draft minutes to the NASA Project Manager within three (3) business days of each meeting.

All interim and final deliverables shall be submitted electronically to the project team for review comments. The contractor shall conduct formal kick off meetings and tabletop reviews for each of the submittals. The contractor shall use the kickoff meetings to provide an overview of the different parts of the submittal and to highlight areas of concern. The contractor shall allow ten (10) business days for all Government reviews and shall provide disposition of Government comments along with a detailed tabletop review agenda at least two (2) business days prior to the tabletop review meeting.

Contractor is responsible for sizing all electrical components including transformers, switchgear, wiring, breakers, grounding, cathodic protection, etc.

8 Period of Performance:

The period of performance shall not exceed 365 days from date of task order award for all requirements.