19BY7026Q0005_StatementOfWork.pdf

STATEMENT OF WORK

PROJECT TITLE: NEC EXTERIOR DAY TANKS AUTO REFILL SYSTEM.

LOCATION: NEC TRANSFORMER YARD. 50 AV DES ETATS UNIS

REFERENCE:2026 – NEC CONTAINERIZED GENERATORS – V.01

DATE:23-MAR-2026

1. Project Statement

Post Bujumbura requires services of a qualified fuel system contractor to supply, install and commission fuel tank level monitoring and control system for the two containerized generators. The level sensors are required to control the filling of the tanks using existing pumps located at the Utility Building Day tanks or use of new pump systems depending on contractors’ assessment.

Each of the containerized generators has a day tank of approx. 1800 liters. These day tanks receive the fuel from the bulk tanks through fuel bowser. Currently, there exists no control and monitoring system to monitor the filling of the tanks.

1.1 Work Description

Post wants the service of a contractor who can perform.

1.1.1 Installation of level sensor for each tank. The contractor must install stainless steel magnetic level sensors. The level sensor will have 4 levels

a. High High level (H-HL) for show tank overfill - alarm

b. High level (HL) to show tank normal fill

c. Low level (LL) to show tank low level

d. Low Low Level (L-LL) to show dry tank – alarm

1.1.2 The contractor must install a PLC-based control panel. This will receive input and output signals to monitor the tank levels and give command to start and stop the pumps in the bulk supply tanks

1.1.3 The control panel will incorporate an audible and visual alarm signal that will be on in case critical fuel levels in the tanks as follows:

a. High High level (H-HL) showing tank overfill

b. Low Low level (L-LL) showing tank dry level

1.2 Project Description:

1.2.1 For the PLC Work:

1.2.1.1 The contractor must install

a. The main PLC cabinet will control the AUTO refill and monitor tank levels.

b. Provide a means of communication (points) to the existing fuel monitoring system for ease of integration.

c. A built-in screen on the PLC or an HMI module display at the control panel.

1.2.1.2 Perform wiring in the main panel and label all the cables.

1.2.1.3 Contractors must ensure footprint of the new PLC, along with all of it’s I/O cards will fit into the existing cabinet or if there will be need to have an additional cabinet.

1.2.2 For the Fuel piping:

1.2.2.1 Installation of black fuel to connect the existing day tanks in Utility to the exterior Day Tanks.

1.2.2.2 Safety First: Ensure the gas supply is shut off and locked out. Use appropriate personal protective equipment (PPE).

1.2.2.3 Material Selection: Use Schedule 40 black iron pipe for standard gas lines.

1.2.2.4 Support: Secure the pipe with appropriate hangers or straps to prevent sagging.

1.2.2.5 Protection: Paint any black iron pipe that is exposed to the elements outside to prevent corrosion.

1.2.2.6 Penetrations: Sleeves must be used when the pipe passes through exterior walls

1.2.2.7 Pressure Test: Before turning on the gas, the system must be pressure tested with air or nitrogen (not oxygen) to check for leaks.

1.2.2.8 Bubble Test: Apply a leak detection solution to all joints and check for bubbles.

1.2.2.9 Inspection: Ensure the installation complies with local building codes and the National Fuel Gas Code

2. Terms

2.1. The contractor shall make arrangements for one full-time project manager at the site who will inspect the quality of work and the conduct of the workers.

2.2. The Contracting Officer (CO) reserves the right to reject any of the contractor’s employees for security, safety, or performance reasons.

2.3. The contractor should strictly adhere to all instructions from the Contracting Officer’s

Representative (COR) during progress of the project. All instruction will be provided in writing. Any instruction that causes a change to the SOW must be cleared up and approved in writing by the CO first and then signed by the contractor if they are in agreement.

2.4. The U.S. Embassy agrees to furnish water, power, and any storage areas needed for the execution of this project.

2.5. The U.S. Embassy reserves the right to open and search all containers or materials brought onto the site by the contractor or its employees. `

2.6. The contractor will make all efforts to minimize damage to the existing work area and fuel control panel during the project. Any damage done will be repaired by the contractor to match pre-existing conditions at no cost to the U.S. Embassy Burundi.

2.7. No subcontracting will be permitted without prior authorization and written permission from the CO.

2.8. The contractor must follow all security and safety requirements as instructed by the U.S.

Embassy.

2.9. The contractor shall restrict the movement of its workers to the project area only. No workers will be allowed to move freely inside the property.

3. Safety

3.1. The contractor will be required to adhere to the safety standards found in the Safety and

Health Requirements Manual, EM 385-1-1, dated 30 November 2014.

3.2. The contractor is required to submit a Project Safety Plan as part of their proposal. The safety plan should list all significant safety risks associated with the project and how the contractor plans to minimize each.

3.3. The project may not start until the COR has reviewed the safety plan and has inspected the contractor’s safety equipment that will be used on the project.

3.4. The contractor is responsible for providing adequate Personal Protective Equipment (PPE) for each task that is performed. Adequate PPE in this case indicates that there is enough for every employee and that it is in good condition. PPE must be worn at all times while on the job site.

3.5. The U.S. Embassy reserves the right to issue a “Stop Work” order at any point if there are safety violations or unsafe work practices. The contractor must promptly correct the deficiency and receive authorization from the COR before they resume work. Any time lost due to a “Stop Work” order will not be added to the project schedule.

END OF SOW