RFP No. 72066821R00014_Amendment No. 4_28 October, 2021.pdf

USAID/South Sudan Juba Compound Electrical Upgrade

AMENDMENT No. 004

The purposes of this Amendment No. 04 to RFP 72066821R00014 are:

1. To revise specific sections of the solicitation in Sections, C, H, I and J; and

2. To respond to questions and requests for clarification that were received on or before

October 21, 2021.

Except as so stated, all other terms and conditions in, RFP No. 72066821R00014, as previously amended, remain the same.

PART 1 – SPECIFIC CHANGES TO RFP 72066821R00014:

I. Under PART I – THE SCHEDULE, SECTION C -

DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK, make the following changes:

Under Section C.4 CONSTRUCTION PROCESS, C.4.1 Materials Shipping

Address delete sub-part “C.4.1.1Materials delivered to the site shall be marked as follows” in its entirety and insert the following in lieu thereof:

“C.4.1.1Materials delivered to the site shall be marked as follows:

U.S. EMBASSY JUBA, SOUTH SUDAN

US EMBASSY JUBA, SOUTH SUDAN

℅ Contractor POC

Attn: EXO/GSO Shipping Unit

Cellphone: +211 912 117 887

+211 912 117 847

JUBA, SOUTH SUDAN (DIPLOMATIC CARGO)

(Jubausaidshipping@usaid.gov)”

II. Under PART I – THE SCHEDULE, SECTION H, make the following changes:

Incorporate the following clause as Section H.27:

“H.27 FAR PART 4.21 PROHIBITION ON CONTRACTING FOR CERTAIN

COVERED TELECOMMUNICATIONS AND VIDEO SURVEILLANCE

SERVICES OR EQUIPMENT (SECTION 889) (JANUARY 2021)

[Note to offerors: This language will be added to the award if it is based on the Foreign

Assistance waiver. IF the apparently successful offeror does not require a waiver, this additional language will be deleted from the award document]

(a) The award of this contract is based on the Section 889 Foreign Assistance Waiver

USAID received from the Director of National Intelligence (DNI), which expires on

September 30, 2022. Accordingly, the Contractor must submit the FAR 52.204-24

Representation Regarding Certain Telecommunications and Video Surveillance Services mailto:Jubausaidshipping@usaid.gov

RFP No. 72066821R00014

USAID/South Sudan Juba Compound Electrical

Upgrade

Amendment No. 4 or Equipment, to the Contracting Officer, as soon as the contractor is no longer using any covered technology but no later than March 31, 2022.

(b) In addition to the disclosure requirements at FAR 52.204–24(e), if the contractor represents that it does use covered telecommunications equipment or services, the

Contractor must describe the circumstances (including in-country circumstances) where the Contractor uses covered technology. This must include:

1. identification of whether the covered equipment and/or services are provided by third- party communications service providers, such as the internet, phone, utilities, or others;

2. the specific country(ies) where it is used; and

3. a description of the presence of any other covered technology, whether in any internal systems or elsewhere in the supply chain.

If the contractor continues to use covered technology as of March 31, 2022 and there is no applicable waiver in place, the contract period of performance will end on September 30, 2022, as the Contractor is no longer legally eligible for an award. The Contractor will only be entitled to costs incurred through the period of performance including close-out costs. The contractor is not entitled to settlement costs associated with Termination for Convenience (FAR part 49). Any applicable fee will be adjusted commensurate with work completed as of September 30, 2022.”

III. Under PART I – THE SCHEDULE, SECTION I, add the following clause:

• FAR 52.223-99 ENSURING ADEQUATE COVID-19 SAFETY

PROTOCOLS FOR FEDERAL CONTRACTORS (OCT 2021)

(DEVIATION M/OAA-DEV-FAR-22-01c)

IV. Under PART I – THE SCHEDULE, SECTION J – LIST OF

ATTACHMENTS, make the following changes:

1. Under ATTACHMENT 1 – DIVISION 01 GENERAL

REQUIREMENTS, under SECTION 013550 CONSTRUCTION

SECURITY, make the following changes:

(a) Under Section 3.03 PERSONNEL PROCEDURES, sub-section A.2, delete the words “Contract Section H.15.” and replace with “Contract

Section H.13.”

(b) Delete Section 3.04 SECURITY REQUIREMENTS AND LABOR

FOR SPECIFIC ACTIVITIES in its entirety and insert the following in lieu thereof:

“3.04 SECURITY REQUIREMENTS AND LABOR FOR SPECIFIC

ACTIVITIES

RFP No. 72066821R00014

USAID/South Sudan Juba Compound Electrical

Upgrade

Amendment No. 4

A. All work associated with the project shall be performed by uncleared

(e.g., no security clearance) Contractor provided labor. Laborers that do not obtain a Post RSO-approved vetting/security certification are referred to as “Escorted Laborers''. US Citizen or Third Country

Nationals that have been vetted by Post RSO in accordance with

Section H.13 and received RSO authorization to escort are referred to as “Approved Escorts.” The Contractor must provide Approved

Escorts at a ratio of one (1) Approved Escort to six (6) Escorted

Laborers. Escorted Laborers must be escorted at all times while in the

Office and Residential Compounds.

B. Work within the EC Room, TOC and Post must be performed by uncleared Contractor provided labor under surveillance by minimum

Secret cleared Government provided labor. The Contractor must coordinate with COR to arrange the Government provided labor. As determined by Post RSO, work in any area may require Government provided surveillance.”

(c) Under Section 3.05 SITE ACCESS PROCEDURES, delete paragraph

C.2 in its entirety and insert the following in lieu thereof:

“2. US Citizen Visitors (not workers as listed in paragraph 2 above) without a security clearance, when authorized by the COR to enter the

Project Site, will be issued a “visitors badge” and must be continuously escorted by an Approved Escort until departure from the Office and

Residential Compounds.”

PART 2: RESPONSES TO QUESTIONS

Attachment A hereto contains the questions received on or before October 21, 2021 and responses thereto.

Attachment B is the 2021 South Sudan Embassy holiday schedule in response to Question

No. 38.

Attachment C is SECTION 263237 is United States Department of State Overseas Buildings

Operations OBO Standard Specifications - SECTION 263237 – RESISTIVE LOAD BANKS in response to Questions No. 29 and 43.

[END OF AMENDMENT NO. 4]

ATTACHMENT A

MN 20-68 November 13, 2020 SUBJECT: Mission’s Official Calendar for 2021

Distribution: All Employees

Below is the tentative 2021 Official U.S. Mission Holiday schedule in South

Sudan. This schedule is subject to further amendments based on Government decrees and the Islamic calendar.

Day Date Holiday Type

Friday January 1 New Year's Day Local/American

Monday January 18 Martin Luther King, Jr. Day American

Monday February 18 President's Day American

Friday, April 02 Good Friday Local

Monday April 05 Easter (Observed) Local/American

Friday or

Monday

April 30 or May

International Labor Day

(Observed)

Local

Friday or

Monday

May 14 or May

Sudan People Liberation

Army (SPLA) Day (Observed)

Local

Monday May 31 Memorial Day American

*Thursday *May 13 *Eid Al-Fitr Day Local

Monday July 5

Independence Day

(Observed)

American

Friday July 9

South Sudan Independence

Day

Local

Friday July 30 Martyr’s Day Local

*Tuesday *July 20 *Eid Al-Adha Local

Monday September 6 Labor Day American

Monday October 11 Columbus Day American

Thursday November 11 Veterans Day American

Thursday November 25 Thanksgiving Day American

Friday December 25 Christmas Day American

Friday January 1 New Year’s Day (Observed) Local/American

U.S. Mission South Sudan

Management Notice

ATTACHMENT B

UNITED STATES DEPARTMENT OF STATE UNCLASSIFIED JANUARY 2020R

OVERSEAS BUILDINGS OPERATIONS

OBO STANDARD SPECIFICATIONS

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 1

SECTION 263237 – RESISTIVE LOAD BANKS

PART 1 GENERAL

1.1 SUMMARY

A. This Section includes forced air-cooled resistive load bank. These units shall provide manual exercising system for engine generators.

B. Related Sections include the following:

1. Division 26 Section on “Vibration and Seismic Controls for Electrical Systems.”

1.2 SUBMITTALS

A. Product Data: Provide physical data of load and control enclosures including dimensions, weights, cable access, mounting, operating clearances, and details of component arrangements.

B. Wiring Diagrams: Provide detailed wiring diagrams of power and control circuits, including point-to- point wiring, wire numbers, connection point identification, components labeled by device legend.

C. Manufacturer Seismic Qualification Certification: Submit certification that load bank will withstand seismic forces defined in Division 26 Section on "Vibration and Seismic Controls for

Electrical Systems." Include the following:

1. Provide certification based on test of prototype.

2. Basis of Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation.

3. The term "withstand" means "unit will remain in place without separation of internal and external parts during seismic event and the unit will be fully operational after event."

4. Dimensioned Outline Drawings of Equipment: Identify center of gravity and locate and describe mounting and anchorage provisions.

5. Detailed description of equipment anchorage devices on which certification is based, and their installation requirements.

D. Field Test Reports: Indicate and interpret test results for compliance with performance requirements.

E. Product Test Reports: Certified copies of manufacturer’s design and routine factory tests required by referenced standards.

F. Sound-Level Test Reports: Certified copies of manufacturer’s sound-level tests applicable to equipment for this Project.

ATTACHMENT C

OBO STANDARD SPECIFICATIONS

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 2

G. Maintenance Data: For equipment to include in maintenance manuals. Include the following:

1. Lists of spare parts and replacement components recommended for storage at Project site.

1.3 PERFORMANCE REQUIREMENTS

A. The Load Bank shall be complete system with all necessary pilot and power control wiring, and devices to provide functional system. The only additional wiring shall be site required electrical wiring to power source and interconnections from control panel to load enclosure.

B. The load bank shall have capability of load testing engine generator lineup up to 125 percent rating of single generator unit, to verify its performance and supplemental load system.

C. Sound Levels for noise shall conform to requirements in Chapter 12 of the OBO Building Code.

1. Provide Screen Wall attenuation to achieve STC 60 at screen line.

1.4 QUALITY ASSURANCE

A. Comply with requirements of the OBO Electrical Code (NFPA 70, “National Electrical Code” as amended by OBO).

1. Electrical Components, Devices, and Accessories: Listed and labeled in accordance with

Chapter 1 of the OBO Electrical Code by a testing agency acceptable to Project Director/COR based upon input from OBO/PDCS/DE/EE, and marked for intended use.

1.5 PROJECT CONDITIONS

A. Product Selection for Restricted Space: Drawings indicate maximum dimensions for load bank, including clearances. Comply with indicated maximum dimensions.

B. Environmental Limitations: Rate equipment for continuous operation under the following conditions, unless otherwise indicated:

1. Ambient Temperature: [-10 deg C to 50 deg C.]

2. Altitude: [620m above sea level.]

3. Relative humidity: [Up to 60 percent non-condensing.]

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 3

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Load Technology, Inc. (LOADTEC).

2. ASCO Power Technologies

3. Cannon Load Banks.

4. Kohler Co.

2.2 CONFIGURATION

A. The load bank shall consist of the following items:

1. Load bank enclosure containing load resistors, cooling fans, and power control devices.

2. Control panel containing required pilot controls and indicators.

B. Refer to Construction Drawings for location of load bank enclosure and control panel.

2.3 RATINGS

A. Rating shall correspond to 100 percent of one generator KW output rating at 1.0 power factor.

B. Load steps shall be rated at 25 percent, 50 percent, 100 percent, or combination of these steps.

C. Duty cycle shall be continuous at rated ambient conditions.

D. Tolerances:

1. Total: Plus or minus 5 percent of nominal rating.

2. Balance: Plus or minus 2 percent of mean phase.

2.4 ENCLOSURES

A. Load Enclosure:

1. Enclosure shall be suitable of outdoor installation, with bolt down provisions for permanent mounting to concrete pad.

2. Provide enclosure with lifting eyes and captive fork lifting tubes.

3. Discharge air flow from the unit shall be vertical. Unit shall be constructed to prevent re-circulation of cooling air.

4. Fabricate enclosure to isolate heated air flow through load resistor chamber, from control section containing power control and distribution components.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 4

5. Control Section:

a. Non-Corrosive Environment: NEMA 3 rated with gasketed access doors. Load section shall be NEMA 3R with fixed louvers and guards on intake and exhaust openings.

b. Corrosive Environment: NEMA 4X.

6. Enclosure shall have adequate space to install the conduits from the power source. .

7. Enclosure shall be fabricated of electroplated galvanized steel or aluminized steel. Exhaust louvers, if used, shall be fabricated of stainless steel.

B. Stand Alone Control Enclosure:

1. Stand alone control enclosure shall be indoor type, suitable for wall mounting.

2. Enclosure shall be NEMA 3 rated with hinged and gasketed access door.

3. All control components shall be sub-panel mounted with pilot controls and indicators mounted and wired to the exterior door.

C. PLC integrated control enclosure:

1. Coordinate controls with PLC cabinet enclosure.

2. Provide for loadbank control from exterior of cabinet under normal operation. All control components shall be sub-panel mounted, with pilot controls and indicators mounted and wired to exterior.

D. Paralleling Switchgear Control:

1. Coordinate controls with switchgear enclosure.

2. Provide for loadbank control from exterior switchgear under normal operation. All control components shall be sub-panel mounted, with pilot controls and indicators mounted and wired to exterior door of single cubicle.

E. Paint:

1. Metal surfaces shall be properly prepared, primed, and painted. There shall be no raw surfaces except for stainless steel or panels that have platings.

2. Prepare surfaces to be painted in accordance with the Society for Protective Coatings

(SSPC) Surface Preparation requirements:

a. Standard SP1.

3. Prime surfaces to be painted using etching primer intended for use on galvanized steel, and applied in accordance with manufacturer’s recommendations.

4. Provide finish coat on primed surfaces using exterior U.V. resistant polyurethane enamel paint applied in accordance with manufacturer’s recommendations.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 5

2.5 LOAD RESISTORS

A. Load resistors shall be open wire wound type that are continuously supported length of resistor structure. If resistor alloy should fail, resistor material shall be held captive to prevent contact with any surrounding resistors or ground.

B. Resistor’s continuous support shall consist of segmented ceramic tubes assembled on stainless steel rods with fastening provided to compensate for thermal expansion of ceramic tubes.

C. Resistors shall be fabricated of corrosion resistant chromium alloy that has minimum continuous operating temperature of 1000 deg C.

D. Resistor shall not operate at any point in excess of 67 percent of alloy’s maximum continuous operating temperature at ambient extremes.

E. Resistors shall be installed in multiple field removable trays that are small enough to facilitate easy maintenance. Each tray shall be individually removable without affecting any adjacent tray.

F. Resistor terminals shall be brought to exterior of tray through high grade electrical ceramics. No plastic or polyester glass laminates shall be used in any part of resistor assembly.

G. Resistor terminations shall be formed from alloy material or have fabricated terminals of similar material welded to alloy.

H. Resistors shall not require cool down period. Failure shutdown of cooling fan during operation of resistors shall not shorten their life expectancy.

2.6 COOLING SYSTEM

A. Load Bank shall be of forced air cooled type.

B. Cooling fan(s) shall be one piece cast aluminum.

C. Fan(s) shall be direct driven by three phase, TEFC, induction motor.

1. Motor shall be rated at maximum brake horsepower of fan propeller for applied static pressure load.

2.7 PROTECTIVE SYSTEM

A. Cooling failure:

1. Provide failure circuit to monitor cooling system operation, and to disconnect load steps before damage can occur.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 6

2. Provide airflow switch for each cooling fan to monitor fan operation.

3. Provide temperature switch at load chamber exhaust of each cooling fan to monitor excessive exhaust temperature.

B. Fuses:

1. Fuse each individual load section/load step to protect its wiring and control device.

2. Provide required fuses to protect control power transformer and wiring.

C. Cooling fan:

1. Each cooling fan shall be protected by thermal magnetic molded case circuit breaker in combination with contactor and thermal overload relay.

2.8 WIRING AND LOAD BUS

A. Wiring:

1. Load wiring shall have minimum rating of 150 deg C.

2. Control wiring shall have minimum rating of 105 deg C.

3. Wire shall be sized at 125 percent of maximum ampacity at rated ambient.

4. Control wiring shall have sleeve wire numbers that are identified on wiring diagrams.

5. Terminate external interconnect wiring at barrier terminal blocks.

B. Load Bus:

1. Main bus shall run length of control section of load enclosure so that bus mounted fuses will require only short jumpers to load contactors.

2. Load bus shall be tin or silver plated copper, and sized for temperature rise at full ampacity rating of load. Load bus shall have maximum temperature rise of 35 deg C.

3. Provide mechanical lugs to connect power source. Number and size of lugs shall accept number and size of the conductors shown on Construction Drawings.

4. Provide mechanical lugs to accept required equipment grounding conductors shown on

Construction Drawings.

C. Ground Load Bank in accordance with the OBO Electrical Code

2.9 POWER CONTROLS

A. Load shall be controlled by contactors capable of continuous and cycling operations.

B. Control devices shall be clearly and permanently labeled.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 7

2.10 PILOT CONTROLS

A. Provide required control circuitry needed to achieve functions described for control switches and indicators.

B. Display: Panel consists of the following components:

1. LCD Graphics Display Screen

2. Control Keypad

3. Audible Input Signal

4. LED General Operational Indicators

5. Lamp & Graphical Display Test

6. The LCD Display provides:

a. Soft Key Legend

b. Metering display

c. Operational Mode

d. Operational status and alarm condition details

C. Exterior control devices shall be permanently and clearly marked for function and operational settings. Control devices shall be clearly and permanently labeled on interior of enclosure.

D. Control switches and indicators shall be industrial oil tight type if control enclosure is not mounted inside an appropriately NEMA rated control compartment within load bank.

E. Locate control and monitor adjacent to or within paralleling switchgear lineup, adjacent to or integrated with PLC control panel, or stand alone when no PLC or paralleling switchgear is present.

F. Provide ethernet port and serial ports for optional remote monitoring or control.

G. Control panel shall have the following control switches:

1. Control Mode Switch to select operational mode of system. Switch shall have the following three positions for functions:

a. AUTO Position: Load bank shall automatically drop connected load steps, and be ready to respond to requirements of sequence of operation for power as defined in

Division 26 Section for Utility/ATS, in event of utility power failure or other cause that requires power source to service its normal loads. Loadbank control in AUTO shall also be controllable by PLC for paralleling generator switchgear for adding or removing load in normal operation and in test conditions.

b. OFF Position: Load bank shall be locked out and all circuits reset.

c. MANUAL Position (to be used only for testing of generators in presence of operator): Load bank shall automatically drop connected load steps in event of utility power failure or other cause that requires power source to service its normal loads. In this case, operator shall manually change position of Control Mode Switch from the MANUAL position to AUTO position. Load bank shall then be ready to respond to requirements of sequence of operation as defined elsewhere.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 8

2. Automatic load sequencing.

3. Fan Control/Cooling Failure Reset switch to control cooling fan(s), and reset any cooling failure alarms. Switch shall be three positions for functions of Off-On- Reset (momentary).

4. Master Load switch, which allows simultaneous control of preselected load steps.

5. Load Step switches to control each load step.

H. Control lineup shall have the following indicators:

1. Fan running indicator with green lens to annunciate if fan(s) is running.

2. Cooling failure indicator with red lens to annunciate fault condition.

3. Load Step indicators with blue lenses to annunciate energization of each load step.

4. Metering for load bank time and operation

a. True RMS

b. Voltage each Phase

c. Voltage Average

d. Current each Phase

e. Current Average

f. Frequency

g. Kilowatts Average

I. Auxiliary Contacts

1. Generator Normal Operation

2. Generator Failure

3. Generator Start

4. Common failure

2.11 CONTROL POWER

A. Control Circuits:

1. Control power shall not exceed 240 volts.

B. Fan Power:

1. Fan power shall be facility power characteristics. Coordinate number of required circuits and ratings with equipment supplier.

C. Thermal overload relays with thermal magnetic circuit breaker for protection and disconnect.

RESISTIVE LOAD BANK UNCLASSIFIED SECTION 263237 - 9

PART 3 EXECUTION

3.1 INSTALLATION

A. Install load enclosure and control panels in accordance with manufacturer’s drawings and instructions in location shown on Construction Drawings.

B. Install power and control wiring in accordance with manufacturer’s drawings and instructions.

C. Install control wiring to paralleling switchgear PLC controller.

D. Install switch, within sight of load bank, to disconnect all power to load bank during servicing.

3.2 FINAL ACCEPTANCE

A. Load Bank system shall be adjusted and inspected in accordance with manufacturer’s initial operation instructions.

B. Entire system shall be operated to demonstrate function of each control panel and accuracy of applied load.

1. Operate each failure sensor to demonstrate operation of safety system.

END OF SECTION 263237