RFP 19SN1026R0003-P0001.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1

1. CONTRACT ID CODE

I

PAG

OF PAGES

I

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO.

5. PROJECT NO. (If applicable)

0001 PR15735787-0001

6. ISSUED BY CODE SN100 7. ADMINISTERED BY (If other than Item 6) CODE

AMERICAN EMBASSY SINGAPORE AMERICAN EMBASSY SINGAPORE

27 NAPIER ROAD, ATTN: GSO/PROCUREMENT 27 NAPIER ROAD, ATTN: GSO/PROCUREMENT

SINGAPORE 258508 SINGAPORE 258508

SINGAPORE SINGAPORE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X) SA. AMENDMENT OF SOLICITATION

NO.

GJ

19SN1026R0003

9B. DATED (SEE ITEM 11)

01/21/2026

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE I FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

� The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers D is extended, [iJ is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning l copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment your desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORT ANT: Contractor D is not, [iJ is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of this amendment is to replace Attachment 6 - Statement of Work (SOW) in its entirety.

Except as provided herein, all terms and conditions of the document referenced in Item SA or 1 0A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

NSN 7540-01-152-8070

Previous edition unusable

15C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16B. UNITED STATES OF AMERICA 16C. DATE SIGNED

(Signature of Contracting Officer)

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

RFP 19SN1026R0003-P0001

(Replace)

ATTACHMENT 6 –SPECIFICATIONS

STATEMENT OF WORK

Replacement and Modernization of Two Siemens Compound

Circuit Breakers (TX-1 & TX-2)

U.S. Embassy Singapore – Singapore

TABLE OF CONTENTS

1.0 Scope of Work

1.1 General Scope

1.2 Existing System Overview

1.3 Replacement and Modernization Scope

1.4 High-Voltage Operations Scope

1.5 Remote Control and Monitoring Scope

1.6 Power Monitoring Modernization Scope

1.7 Transformer Monitoring Restoration Scope

1.8 Testing and Commissioning Scope

1.9 Completion Requirement

2.0 Applicable Documents

2.1 General

2.2 International Electrotechnical Commission (IEC) Standards

2.3 Local Singapore Electrical Regulations

2.4 Manufacturer Requirements

2.5 Embassy Safety Policies

2.6 BACnet Communication Standards

2.7 Conflict Resolution

3.0 Tasks and Responsibilities

3.1 General

3.2 Site Assessment and Verification

3.3 Planning and Procedure Development

3.4 Removal of Existing Equipment

3.5 Installation of New Air Circuit Breakers

3.6 High-Voltage Shutdown and Restoration

3.7 Remote Control Panel Installation

3.8 Dedicated Circuit and UPS Installation

3.9 Power Monitoring System Replacement

3.10 Transformer Monitoring Restoration

3.11 Testing and Commissioning

3.12 Government Responsibilities

4.0 Deliverables

4.1 General Deliverable Requirements

4.2 Pre-Execution Deliverables

4.3 Equipment Submittals

4.4 Testing and Commissioning Reports

4.5 As-Built Documentation

4.6 Operation and Maintenance Manuals

4.7 Warranty Documentation

4.8 Final Closeout Package

5.0 Delivery Schedule

5.1 Notice to Proceed (NTP)

5.2 Commencement of Work

5.3 Overall Completion Requirement

5.4 High-Voltage Shutdown Scheduling

5.5 Working Hours

5.6 Milestone Events

5.7 Delay Responsibility

6.0 Acceptance Criteria

6.1 General Acceptance Standard

6.2 Equipment Installation Acceptance

6.3 High-Voltage Shutdown and Restoration Acceptance

6.4 Remote Control System Acceptance

6.5 UPS System Acceptance

6.6 Power Monitoring System Acceptance

6.7 Transformer Monitoring Acceptance

6.8 Testing Documentation Acceptance

6.9 Final Acceptance

7.0 Location of Work

7.1 Primary Performance Location

7.2 Designated Work Areas

7.3 Operational Environment

7.4 Access Control

7.5 High-Voltage Work Locations

7.6 Material Staging and Storage

8.0 Period of Performance

8.1 Contract Duration

8.2 Commencement of Work

8.3 Completion Standard

8.4 Work Hours

8.5 High-Voltage Scheduling Constraints

8.6 Extensions

9.0 Resources and Equipment

9.1 General Requirement

9.2 Major Equipment to Be Provided

9.3 Tools and Installation Equipment

9.4 Testing and Measurement Instruments

9.5 Safety Equipment

9.6 Consumable Materials

9.7 Resource Planning Responsibility

10.0 Personnel Requirements

10.1 General Personnel Standard

10.2 Licensed Electrical Worker (LEW) Requirement

10.3 Qualified Electricians

10.4 High-Voltage Work Staffing

10.5 Work at Height Personnel

10.6 Safety and PPE Training

10.7 Security and Conduct Requirements

10.8 Subcontractor Personnel

11.0 Performance Standards

11.1 General Performance Requirement

11.2 Quality of Workmanship

11.3 System Reliability

11.4 Timeliness

11.5 Technical Accuracy

11.6 Monitoring and Communication Performance

11.7 Safety Performance Standard

11.8 Documentation Performance

12.0 Inspection and Testing Requirements

12.1 Government Inspection Authority

12.2 Pre-Energization Inspection

12.3 Electrical Testing Requirements

12.3.1 Insulation Resistance Testing

12.3.2 Contact Resistance Testing

12.3.3 Mechanical Operation Testing

12.3.4 Trip Testing

12.4 High-Voltage Restoration Verification

12.5 Remote Control Testing

12.6 UPS Testing

12.7 Power Monitoring System Testing

12.8 Transformer Alarm Testing

12.9 Documentation of Testing

12.10 Re-Testing Requirements

13.0 Government Furnished Property

13.1 General

13.2 Access to Existing Infrastructure

13.3 Reuse of Existing Components

13.4 Condition of Existing Equipment

13.5 Damage to Government Property

13.6 No Transfer of Ownership

14.0 Security Requirements

14.1 General Security Compliance

14.2 Site Access Control

14.3 Personnel Conduct

14.4 Protection of Sensitive Infrastructure

14.5 Tool and Material Control

14.6 Incident Reporting

14.7 Information Control

15.0 Safety Requirements

15.1 General Safety Compliance

15.2 Pre-Work Hazard Identification

15.3 Lockout/Tagout (LOTO) Requirements

15.4 High-Voltage Electrical Safety

15.5 Personal Protective Equipment (PPE)

15.6 Barricading and Site Control

15.7 Work at Height

15.8 Tool and Equipment Safety

15.9 Emergency Response

15.10 Substance and Conduct Controls

16.0 Reporting Requirements

16.1 General Reporting Obligation

16.2 Pre-Execution Reporting

16.3 Progress Reporting

16.4 Incident Reporting

16.5 Testing Reports

16.6 Final Project Report

16.7 Record Accuracy

17.0 Subcontracting Requirements

17.1 Prime Contractor Responsibility

17.2 Approval of Subcontractors

17.3 Subcontractor Personnel Requirements

17.4 Supervision and Coordination

17.5 Insurance and Compliance

17.6 Flow-Down of Requirements

18.0 Training Requirements

18.1 General Training Obligation

18.2 Breaker Operation Training

18.3 Remote Control and Monitoring Training

18.4 UPS System Training

18.5 Transformer Monitoring Training

18.6 Training Format

18.7 Training Documentation

19.0 Change Management

19.1 Authority to Change Scope

19.2 Identification of Required Changes

19.3 Change Request Documentation

19.4 Directed Changes

19.5 Field Conditions

19.6 Configuration Control

19.7 Unauthorized Changes

20.0 Risk Management

20.1 General Risk Responsibility

20.2 High-Voltage Operational Risks

20.3 Infrastructure Compatibility Risks

20.4 Schedule Risks

20.5 Monitoring and Integration Risks

20.6 Safety Risks

20.7 Documentation of Risk Controls

20.8 Residual Risk

21.0 Recordkeeping and Documentation

21.1 General Recordkeeping Requirement

21.2 Installation Records

21.3 Testing Records

21.4 Lockout/Tagout Records

21.5 Change Documentation

21.6 Configuration Documentation

21.7 Record Retention

21.8 Closeout Documentation Consolidation

22.0 References

22.1 General

22.2 International Standards

22.3 Local Regulatory References

22.4 Manufacturer Documentation

22.5 Communication Standards

22.6 Embassy Policies

22.7 Contractual Documents

1.0 Scope of Work

1.1 General Scope

The Contractor shall provide all labor, supervision, engineering services, project management, materials, equipment, tools, testing instruments, safety controls, permits (if required), coordination activities, documentation, and quality control necessary to fully execute the

Replacement and Modernization of Two Siemens Compound Circuit Breakers (TX-1 and TX-2) at the U.S. Embassy Singapore.

This Scope of Work includes all activities required to deliver a complete, operational, tested, and accepted electrical system consistent with the objectives of this project.

This is a Firm-Fixed-Price requirement. The Contractor shall include all work necessary to achieve full operational capability whether or not each incidental task is explicitly enumerated, provided such work is reasonably inferable from the defined project objectives and technical requirements.

1.2 Existing System Overview

The existing electrical infrastructure includes two aging Siemens compound air circuit breakers identified as TX-1 and TX-2. These breakers:

• Have exceeded their service life

• Are obsolete models

• Are no longer supported by the manufacturer

• Present reliability and maintainability concerns

The breakers are installed within the Main Distribution Board (MDB) and are connected to transformer systems supporting Embassy operations.

The project also involves:

• Molded Case Circuit Breakers (MCCBs) at the transformer enclosure (Low-Tension side)

• Existing Current Transformers (CTs)

• Underground cabling associated with monitoring systems

• Remote monitoring infrastructure

• Transformer temperature monitoring devices

The Contractor shall field-verify all existing conditions prior to removal or installation activities.

1.3 Replacement and Modernization Scope

The Contractor shall remove the two existing Siemens compound circuit breakers (TX-1 and TX-

2) and replace them with new Air Circuit Breakers (ACBs) meeting current IEC standards.

The new breakers shall:

• Be Siemens WL series or technically equivalent

• Be fully compatible with existing busbar systems

• Be compatible with existing protection coordination

• Include motorized automatic charging mechanisms

• Include manual charging mechanisms

• Support remote ON/OFF operation

• Support visual breaker status indication

The Contractor shall ensure full mechanical and electrical integration with existing infrastructure.

1.4 High-Voltage Operations Scope

The Contractor shall plan and execute controlled shutdown and restoration of two (2) 22kV incoming high-tension power supplies to facilitate breaker replacement.

This includes:

• Development of detailed switching procedures

• Implementation of Lockout/Tagout (LOTO) controls

• Supervision by a Licensed Electrical Worker (LEW) certified for high-voltage systems

• Verification of de-energization prior to work

• Controlled re-energization and restoration

The Contractor assumes responsibility for safe execution of high-voltage isolation and restoration procedures.

1.5 Remote Control and Monitoring Scope

The Contractor shall install remote control panels for each breaker.

Each remote panel shall include:

• ON/OFF switching capability

• Breaker OPEN/CLOSED status indication

• Proper labeling and circuit identification

• Integrated control wiring

The Contractor shall install a new dedicated 20A circuit originating from Room 2213 (2nd Floor) and terminating at Room 1306 to support the remote control panel system.

The Contractor shall provide and install a standalone Uninterruptible Power Supply (UPS) capable of:

• Minimum one (1) hour runtime

• Dedicated maintenance bypass capability

• Safe load transfer functionality

The Contractor shall integrate monitoring points into the Building Management System (BMS) using BACnet communication protocol.

1.6 Power Monitoring Modernization Scope

The Contractor shall:

• Decommission and remove two faulty power monitoring panels connected to ATS-2

• Test and verify integrity of existing underground cabling

• Test and verify integrity and rating of existing Current Transformers (CTs) prior to reuse

• Install new BACnet-compatible power meters

• Configure meters for real-time electrical parameter monitoring

• Enable surge current capture and logging capability

1.7 Transformer Monitoring Restoration Scope

The Contractor shall:

• Replace the malfunctioning Transformer-1 oil high-temperature alarm

• Install a new temperature sensor on Transformer-2

• Test alarm functionality

• Verify signal transmission to monitoring systems

• Document calibration and operational verification

1.8 Testing and Commissioning Scope

The Contractor shall perform full mechanical, electrical, functional, and integration testing of all installed systems, including:

• Insulation resistance testing

• Contact resistance testing

• Trip testing

• Mechanical operation testing

• Remote control verification

• UPS runtime verification

• BACnet communication verification

• Alarm functionality verification

All testing shall be documented and submitted prior to acceptance.

1.9 Completion Requirement

The Scope of Work is complete only when:

• All equipment is installed

• All systems are operational

• All monitoring points function correctly

• All documentation is submitted

• All testing is approved

• Final acceptance is issued in writing by the Contracting Officer

2.0 Applicable Documents

2.1 General

The Contractor shall comply with all applicable codes, standards, regulations, and manufacturer requirements governing electrical infrastructure modernization, high-voltage operations, and monitoring system integration.

The documents listed in this section are incorporated by reference to the extent applicable to the work described in this Statement of Work.

In the event of a conflict between referenced standards, the more stringent requirement shall apply unless otherwise directed in writing by the Contracting Officer (CO).

2.2 International Electrotechnical Commission (IEC) Standards

The Contractor shall comply with all applicable IEC standards governing low-voltage switchgear and controlgear, including but not limited to:

• IEC 60947 series — Low-voltage switchgear and controlgear

• IEC 60947-2 — Circuit-breakers

• IEC 60204 — Safety of machinery — Electrical equipment of machines (where applicable)

• IEC 61439 — Low-voltage switchgear assemblies (where applicable)

All Air Circuit Breakers (ACBs) installed under this contract shall meet current IEC requirements applicable at the time of installation.

2.3 Local Singapore Electrical Regulations

All work shall comply with:

• Applicable Singapore electrical codes and regulations

• Requirements for Licensed Electrical Worker (LEW) supervision for high-voltage systems

• Local inspection and compliance requirements governing 22kV operations

The Contractor shall be responsible for ensuring all work meets regulatory requirements applicable within Singapore.

2.4 Manufacturer Requirements

The Contractor shall comply with:

• Installation instructions issued by the Air Circuit Breaker manufacturer

• Manufacturer torque specifications

• Manufacturer commissioning procedures

• Manufacturer maintenance and warranty requirements

• UPS manufacturer installation and ventilation requirements

• Power monitoring equipment manufacturer configuration requirements

Manufacturer installation instructions shall not be superseded unless approved in writing by the

CO.

2.5 Embassy Safety Policies

The Contractor shall comply with all applicable U.S. Embassy Singapore safety directives, including:

• Lockout/Tagout (LOTO) policies

• High-voltage isolation procedures

• Personal Protective Equipment (PPE) requirements

• Barricading and warning signage requirements

• Emergency response protocols

Embassy policies shall be treated as mandatory contractual requirements.

2.6 BACnet Communication Standards

All power monitoring meters installed under this contract shall support:

• BACnet communication protocol

• Integration with existing Building Management System (BMS) infrastructure

• Real-time parameter reporting

• Alarm transmission capability

Configuration shall follow recognized BACnet interoperability standards.

2.7 Conflict Resolution

If a conflict exists between:

• This Statement of Work

• Referenced standards

• Manufacturer instructions

• Local regulations

The Contractor shall immediately notify the CO in writing and request direction prior to proceeding.

The Contractor shall not independently interpret conflicts in a manner that reduces safety or performance requirements.

3.0 Tasks and Responsibilities

3.1 General

The Contractor shall perform all tasks necessary to execute the Scope of Work defined in Section

1.0. Tasks are mandatory unless expressly stated otherwise. The Contractor remains fully responsible for sequencing, coordination, and safe execution of all activities.

3.2 Site Assessment and Verification

1. Conduct a detailed inspection of the existing TX-1 and TX-2 breakers and associated assemblies.

2. Verify electrical ratings, protection settings, control wiring configuration, and busbar interfaces.

3. Confirm dimensional compatibility of proposed replacement ACBs with existing switchgear compartments.

4. Verify mechanical clearances and accessibility.

5. Inspect existing Current Transformers (CTs) for rating compatibility and physical condition.

6. Inspect underground cabling associated with monitoring systems.

7. Document existing conditions prior to removal activities.

Any incompatibility or discrepancy shall be reported in writing to the COR before installation proceeds.

3.3 Planning and Procedure Development

The Contractor shall develop and submit the following prior to high-voltage operations:

1. High-voltage shutdown and restoration procedure.

2. Lockout/Tagout (LOTO) execution plan.

3. Task-specific risk assessment.

4. Switching sequence documentation.

5. Re-energization protocol.

6. Work sequencing plan to minimize operational disruption.

No 22kV shutdown shall occur without written acknowledgment from the COR.

3.4 Removal of Existing Equipment

1. De-energize systems in accordance with approved procedures.

2. Apply Lockout/Tagout controls at all isolation points.

3. Verify absence of voltage prior to work.

4. Disconnect and remove:

o Two existing Siemens compound circuit breakers (TX-1 and TX-2).

o Existing MCCBs at the transformer enclosure (Low-Tension side).

5. Label and document all removed conductors and control wiring.

6. Protect adjacent energized infrastructure.

7. Dispose of removed equipment in accordance with local environmental regulations.

3.5 Installation of New Air Circuit Breakers

1. Install two new Air Circuit Breakers (Siemens WL series or technically equivalent).

2. Ensure alignment with existing busbars.

3. Apply manufacturer-specified torque values to all terminations.

4. Confirm proper phase identification.

5. Configure motorized automatic charging mechanisms.

6. Configure manual charging mechanisms with accessible handles.

7. Verify mechanical stability and proper racking operation.

8. Configure protection settings in accordance with coordination requirements.

3.6 High-Voltage Shutdown and Restoration

1. Execute controlled shutdown of two (2) 22kV incoming high-tension power supplies.

2. Perform shutdown and restoration under supervision of a Licensed Electrical Worker

(LEW).

3. Implement Lockout/Tagout controls throughout isolation period.

4. Maintain documented isolation logs.

5. Coordinate shutdown window with Embassy operations.

6. Conduct safe restoration and re-energization procedures.

7. Confirm system stability following re-energization.

3.7 Remote Control Panel Installation

1. Install remote control panels for each breaker.

2. Provide ON/OFF switching capability.

3. Provide breaker OPEN/CLOSED status indication.

4. Route control wiring in protected conduit.

5. Label all wiring and terminations.

6. Verify functional operation under both load and no-load conditions.

3.8 Dedicated Circuit and UPS Installation

1. Install a new 20A circuit originating from Room 2213 (2nd Floor).

2. Terminate the circuit at Room 1306 for remote panel power.

3. Provide overcurrent protection in accordance with applicable code.

4. Install a standalone UPS with:

o Minimum one-hour runtime.

o Dedicated maintenance bypass.

o Proper ventilation and grounding.

5. Test UPS load transfer and runtime performance.

3.9 Power Monitoring System Replacement

1. Decommission and remove two faulty power monitoring panels connected to ATS-2.

2. Test and verify integrity of existing underground cabling prior to reuse.

3. Test CT accuracy and condition.

4. Install new BACnet-compatible meters.

5. Configure real-time monitoring parameters.

6. Enable surge current capture and logging functionality.

7. Verify communication with the Building Management System (BMS).

3.10 Transformer Monitoring Restoration

The Contractor shall:

1. Replace Transformer-1 oil high-temperature alarm.

2. Install Transformer-2 temperature sensor.

3. Test alarm thresholds and activation.

4. Verify integration into monitoring systems.

5. Document calibration and operational verification.

3.11 Testing and Commissioning

The Contractor shall perform:

1. Insulation resistance testing.

2. Contact resistance testing.

3. Mechanical operation testing.

4. Trip testing.

5. Remote control verification.

6. UPS runtime verification.

7. BACnet communication verification.

8. Alarm functionality verification.

All testing shall be documented and submitted prior to acceptance.

3.12 Government Responsibilities

The Government shall:

1. Issue the Notice to Proceed.

2. Provide site access.

3. Designate CO and COR.

4. Coordinate operational scheduling constraints.

5. Review and approve submitted documentation.

6. Witness testing where required.

4.0 Deliverables

4.1 General Deliverable Requirements

The Contractor shall submit all deliverables required under this contract in complete, accurate, and reviewable form.

All deliverables shall:

1. Be clearly labeled with the project title:

Replacement and Modernization of Two Siemens Compound Circuit Breakers (TX-1 &

TX-2) – U.S. Embassy Singapore

2. Include submission date.

3. Include revision number where applicable.

4. Identify responsible preparer.

5. Be submitted electronically unless otherwise directed by the COR.

6. Be written in English.

7. Reflect final installed configuration where applicable.

Incomplete or inaccurate submissions may be rejected.

4.2 Pre-Execution Deliverables

The Contractor shall submit the following prior to commencement of high-voltage operations:

1. Project Work Plan o Description of work sequencing o Milestones o Coordination approach o Resource allocation

2. High-Voltage Shutdown and Restoration Procedure o Switching sequence o Isolation points o Verification of de-energization o Re-energization steps o Contingency plan

3. Lockout/Tagout (LOTO) Plan o Identification of isolation points o Lock control procedures o Tagging protocol o Log documentation method

4. Task-Specific Risk Assessment o Hazard identification o Risk mitigation measures o PPE requirements o Emergency procedures

5. Personnel Certification Documentation o Licensed Electrical Worker (LEW) credentials o Electrical worker qualifications o Fall protection training certificates (if applicable)

No high-voltage shutdown shall occur until required documentation is acknowledged by the

COR.

4.3 Equipment Submittals

The Contractor shall provide manufacturer documentation for:

1. Air Circuit Breakers (ACBs)

2. Motorized charging mechanisms

3. Remote control panels

4. UPS system

5. Power monitoring meters

6. Transformer temperature sensors

Each submittal shall include:

• Manufacturer name

• Model number

• Electrical ratings

• Compliance standards

• Dimensional drawings

• Installation requirements

• Warranty information

Equipment shall not be installed prior to review unless otherwise authorized.

4.4 Testing and Commissioning Reports

The Contractor shall submit documented test results for:

1. Insulation resistance testing

2. Contact resistance testing

3. Mechanical operation testing

4. Trip testing

5. Remote control functionality testing

6. UPS runtime verification

7. Maintenance bypass verification

8. BACnet communication verification

9. Transformer alarm testing

Each report shall include:

• Test method

• Equipment used (including calibration status)

• Measured values

• Acceptance criteria

• Pass/Fail determination

• Date of test

• Name and signature of responsible technician

4.5 As-Built Documentation

The Contractor shall provide final as-built documentation including:

1. Updated single-line diagrams

2. Wiring schematics

3. Panel layout drawings

4. Control wiring diagrams

5. Protection setting configuration records

6. Monitoring point mapping documentation

As-built drawings shall reflect actual installed configuration.

4.6 Operation and Maintenance Manuals

The Contractor shall provide O&M documentation including:

1. Breaker operation procedures

2. Auto/manual charging instructions

3. Remote panel operating instructions

4. UPS maintenance procedures

5. Monitoring system configuration guidance

6. Recommended maintenance intervals

Manufacturer literature shall be supplemented with project-specific configuration data.

4.7 Warranty Documentation

The Contractor shall provide:

1. Warranty certificates for all major equipment.

2. Minimum twelve (12) month warranty coverage from date of final acceptance.

3. Clear identification of warranty terms and service contact information.

4.8 Final Closeout Package

Prior to final acceptance, the Contractor shall submit a consolidated closeout package including:

1. All approved submittals

2. All test reports

3. As-built documentation

4. O&M manuals

5. Warranty certificates

6. Shutdown and restoration records

7. BMS integration confirmation documentation

Final acceptance shall not occur until the closeout package is reviewed and deemed complete.

5.0 Delivery Schedule

5.1 Notice to Proceed (NTP)

The Contracting Officer (CO) shall issue a written Notice to Proceed (NTP).

The Contractor shall not begin mobilization, procurement requiring site validation, high-voltage coordination, or physical site work prior to receipt of the NTP.

Unauthorized work performed prior to NTP shall be at the Contractor’s risk.

5.2 Commencement of Work

The Contractor shall commence work within ten (10) calendar days after receipt of the NTP.

Commencement includes:

• Mobilization

• Site assessment activities

• Submission of required pre-execution documentation

• Coordination meetings

Failure to commence within ten (10) calendar days without approved justification may be considered non-compliance.

5.3 Overall Completion Requirement

All work required under this Statement of Work shall be fully completed within thirty (30) calendar days from the date of NTP issuance.

Completion includes:

1. Removal of existing breakers and MCCBs.

2. Installation of new Air Circuit Breakers.

3. Installation of remote control panels.

4. Installation of dedicated 20A circuit.

5. Installation and commissioning of UPS system.

6. Replacement of monitoring panels and meters.

7. Restoration of transformer temperature monitoring.

8. Completion of all testing and commissioning.

9. Submission of all required deliverables.

10. Correction of identified deficiencies.

Final acceptance must occur within the thirty (30) calendar day Period of Performance unless otherwise modified in writing by the CO.

5.4 High-Voltage Shutdown Scheduling

High-voltage shutdown of the two (2) 22kV incoming supplies shall:

1. Be coordinated in advance with the COR.

2. Be scheduled during approved operational windows.

3. Include written switching sequence documentation.

4. Include contingency restoration planning.

The Contractor shall provide advance notice of proposed shutdown dates no less than five (5) working days prior to execution unless otherwise approved.

5.5 Working Hours

Standard working hours shall be:

0800 – 1630, Monday through Friday, excluding local holidays.

Work outside these hours:

1. Requires prior written approval from the CO or COR.

2. Shall not constitute justification for additional compensation under the Firm-Fixed-Price structure.

3. Shall not extend the Period of Performance unless formally modified.

5.6 Milestone Events

The Contractor shall coordinate and complete the following milestone events within the 30-day period:

1. Submission of pre-execution documentation.

2. Completion of shutdown and isolation.

3. Installation of new ACBs.

4. Installation of remote control panels.

5. Installation of UPS and dedicated circuit.

6. Monitoring system replacement.

7. Completion of testing and commissioning.

8. Submission of final closeout package.

Milestone sequencing shall be managed by the Contractor to ensure completion within the required timeframe.

5.7 Delay Responsibility

The Contractor is responsible for:

• Timely procurement of equipment.

• Availability of qualified personnel.

• Coordination of high-voltage operations.

• Scheduling of required inspections.

Delays caused by Contractor failure to plan or coordinate shall not justify schedule extension absent written modification.

6.0 Acceptance Criteria

6.1 General Acceptance Standard

All work performed under this contract shall be subject to inspection and acceptance by the

Government.

Acceptance shall be based on verification that:

1. All contractual requirements have been fulfilled.

2. All equipment is properly installed.

3. All systems are fully operational.

4. All required documentation has been submitted and approved.

5. All deficiencies have been corrected.

Partial completion does not constitute final acceptance.

6.2 Equipment Installation Acceptance

The following conditions must be met for breaker installation acceptance:

1. Two (2) Air Circuit Breakers (ACBs) are installed in place of TX-1 and TX-2.

2. Breakers are securely mounted and mechanically stable.

3. Busbar connections are properly aligned.

4. All terminations meet manufacturer torque specifications.

5. Phase identification is accurate and labeled.

6. Manual charging mechanisms operate smoothly.

7. Motorized automatic charging mechanisms operate correctly.

8. Breaker racking (if applicable) functions properly.

Any improper installation shall require correction prior to acceptance.

6.3 High-Voltage Shutdown and Restoration Acceptance

Acceptance of shutdown operations requires:

1. Execution of shutdown in accordance with approved procedure.

2. Proper Lockout/Tagout implementation.

3. Documented isolation log.

4. Safe re-energization.

5. Confirmation of stable system operation following restoration.

Unauthorized deviation from approved switching sequence may result in rejection of work.

6.4 Remote Control System Acceptance

The remote control system shall be accepted only when:

1. ON/OFF switching functions properly.

2. Breaker OPEN/CLOSED status indication is accurate.

3. Control wiring is properly terminated and labeled.

4. Functional testing confirms reliable actuation.

5. Integration does not interfere with local breaker control.

6.5 UPS System Acceptance

The UPS installation shall be accepted only when:

1. The dedicated 20A circuit is properly installed and protected.

2. UPS provides minimum one (1) hour runtime under expected load.

3. Maintenance bypass operates without interruption of load.

4. Proper grounding and ventilation are confirmed.

5. System transfers smoothly between normal and battery power.

6.6 Power Monitoring System Acceptance

Monitoring system replacement shall be accepted only when:

1. Two faulty panels are removed.

2. New BACnet-compatible meters are installed.

3. Existing CTs are tested and verified functional.

4. Underground cabling integrity is verified.

5. Real-time electrical parameters are displayed accurately.

6. Surge current logging functionality is demonstrated.

7. Successful communication with the Building Management System (BMS) is verified.

6.7 Transformer Monitoring Acceptance

Transformer monitoring restoration shall be accepted only when:

1. Transformer-1 oil high-temperature alarm is replaced and operational.

2. Transformer-2 temperature sensor is installed and functional.

3. Alarm thresholds are tested.

4. Alarm signals transmit correctly to monitoring systems.

6.8 Testing Documentation Acceptance

All testing documentation shall:

1. Include measured values.

2. Identify pass/fail criteria.

3. Be signed by responsible technician.

4. Reflect calibrated test equipment.

5. Be reviewed by the COR.

Incomplete documentation may result in rejection.

6.9 Final Acceptance

Final acceptance shall occur only after:

1. All acceptance criteria in this section are met.

2. All deliverables in Section 4.0 are approved.

3. All deficiencies are corrected.

4. The Contracting Officer issues written final acceptance.

Final acceptance must be documented in writing.

7.0 Location of Work

7.1 Primary Performance Location

All work under this contract shall be performed at:

U.S. Embassy Singapore

27 Napier Road

Singapore 258508

The facility is an active diplomatic compound supporting mission-critical operations.

7.2 Designated Work Areas

Primary work areas include, but are not limited to:

1. Main Distribution Board (MDB) Room.

2. Transformer enclosure (Low-Tension side).

3. High-tension switching locations associated with two (2) 22kV incoming power supplies.

4. Room 1306 (Remote panel and monitoring system location).

5. Room 2213, 2nd Floor (Origin point of dedicated 20A circuit).

6. Associated electrical rooms and routing pathways required for conduit and cabling installation.

The Contractor shall restrict activities to approved areas only.

7.3 Operational Environment

The work site is an occupied and operational facility. The Contractor shall:

1. Coordinate all activities with the COR.

2. Minimize disruption to Embassy operations.

3. Protect mission-critical infrastructure from unintended interruption.

4. Maintain continuous awareness of adjacent energized systems.

Electrical systems within the facility may remain energized outside defined isolation boundaries.

7.4 Access Control

1. Comply with Embassy access control procedures.

2. Ensure all personnel are properly cleared or escorted as required.

3. Carry identification at all times while on Embassy property.

4. Restrict access to authorized personnel only.

Unauthorized access to restricted areas is prohibited.

7.5 High-Voltage Work Locations

High-voltage shutdown and restoration activities shall occur at designated transformer and switching locations serving the Embassy’s 22kV incoming utility feeds.

Such activities shall:

1. Be pre-coordinated with the COR.

2. Follow approved switching procedures.

3. Be supervised by a Licensed Electrical Worker (LEW).

4. Maintain documented isolation records.

7.6 Material Staging and Storage

Material staging areas shall be designated by the COR.

1. Store materials only in approved locations.

2. Prevent obstruction of egress routes.

3. Maintain safe access to electrical equipment.

4. Protect stored equipment from environmental exposure.

8.0 Period of Performance

8.1 Contract Duration

The Period of Performance (POP) for this contract shall be thirty (30) calendar days from the date of issuance of the written Notice to Proceed (NTP) by the Contracting Officer (CO).

The thirty (30) calendar day period includes all work required under this Statement of Work, including but not limited to:

1. Mobilization

2. Site assessment

3. Submission of required pre-execution documentation

4. High-voltage shutdown coordination

5. Removal of existing equipment

6. Installation of new equipment

7. Testing and commissioning

8. Documentation submission

9. Deficiency correction

10. Final acceptance processing

8.2 Commencement of Work

The Contractor shall commence work within ten (10) calendar days of receipt of the written NTP.

Commencement includes:

1. Mobilization of personnel.

2. Initial coordination meeting with the COR.

3. Submission of required planning documents.

4. Field verification activities.

No physical site work or system modification shall begin prior to NTP issuance.

8.3 Completion Standard

The Contractor shall achieve full project completion within the thirty (30) calendar day Period of

Performance.

Completion is defined as:

1. Installation of all required equipment.

2. Successful completion of all testing.

3. Submission and approval of all required deliverables.

4. Correction of any identified deficiencies.

5. Issuance of written final acceptance by the CO.

Failure to meet the completion deadline without an approved modification may constitute non-performance.

8.4 Work Hours

Standard work hours shall be:

0800 – 1630, Monday through Friday, excluding local holidays.

Work outside these hours:

1. Requires prior written approval from the CO or COR.

2. Shall not result in additional compensation under the Firm-Fixed-Price structure.

3. Shall not automatically extend the Period of Performance.

8.5 High-Voltage Scheduling Constraints

High-voltage shutdown of the two (2) 22kV incoming power supplies shall:

1. Be scheduled in coordination with the COR.

2. Be executed during approved operational windows.

3. Include contingency restoration planning.

4. Be supported by approved switching documentation.

The Contractor shall provide proposed shutdown dates no less than five (5) working days prior to execution unless otherwise directed.

8.6 Extensions

Any extension to the Period of Performance:

1. Must be authorized in writing by the Contracting Officer.

2. Shall be processed through formal contract modification.

3. Shall not be assumed based on field conditions without written authorization.

9.0 Resources and Equipment

9.1 General Requirement

The Contractor shall provide all resources, equipment, tools, materials, consumables, instrumentation, and support systems necessary to complete the work described in this Statement of Work.

No additional Government-furnished tools, materials, or equipment shall be assumed unless explicitly identified in Section 13.0 Government Furnished Property.

9.2 Major Equipment to Be Provided

The Contractor shall provide, at a minimum, the following major equipment:

1. Two (2) Air Circuit Breakers (ACBs), Siemens WL series or technically equivalent.

2. Motorized automatic charging assemblies integrated with each breaker.

3. Manual charging mechanisms integrated with each breaker.

4. Two (2) remote control panels compatible with installed breakers.

5. One (1) dedicated 20A branch circuit and associated protection devices.

6. One (1) standalone Uninterruptible Power Supply (UPS) with:

o Minimum one-hour runtime under expected load.

o Dedicated maintenance bypass capability.

7. Two (2) BACnet-compatible power monitoring meters.

8. Replacement transformer temperature monitoring devices:

o Transformer-1 oil high-temperature alarm.

o Transformer-2 temperature sensor.

All equipment shall be new unless otherwise approved in writing.

9.3 Tools and Installation Equipment

The Contractor shall provide all tools required for:

1. Breaker removal and installation.

2. Busbar alignment and termination.

3. Conduit installation and wiring.

4. Torque verification of terminations.

5. High-voltage switching and isolation.

6. Cable pulling and termination.

7. Mounting and securing panels and enclosures.

All tools shall be maintained in good condition and suitable for electrical work.

9.4 Testing and Measurement Instruments

The Contractor shall provide calibrated testing instruments suitable for high-voltage and low-voltage verification, including but not limited to:

1. Insulation resistance tester (megger).

2. Micro-ohmmeter for contact resistance testing.

3. Voltage detection and verification instruments.

4. Phase rotation tester (if required).

5. Trip testing devices compatible with installed ACBs.

6. Power quality analyzer or meter configuration interface (as required for monitoring setup).

All testing instruments shall:

1. Be within current calibration period.

2. Have calibration certificates available upon request.

3. Be suitable for the voltage levels involved in the project.

9.5 Safety Equipment

The Contractor shall provide all required safety equipment including:

1. Lockout/Tagout (LOTO) kits (minimum two per breaker).

2. Arc-rated clothing appropriate for calculated arc-flash levels.

3. Insulated gloves rated for system voltage.

4. Face shields and eye protection.

5. Dielectric footwear.

6. Insulated tools for electrical work.

7. Fiberglass ladders for work near energized systems.

8. Barricades, cones, caution tape, and warning signage.

Safety equipment shall be maintained in serviceable condition throughout the project.

9.6 Consumable Materials

The Contractor shall provide all consumable materials required for installation, including but not limited to:

1. Conductors and control wiring.

2. Conduit and fittings.

3. Cable supports and fasteners.

4. Labeling materials.

5. Termination lugs and connectors.

6. Mounting hardware.

7. Grounding conductors and bonding materials.

Consumables shall meet applicable code and manufacturer requirements.

9.7 Resource Planning Responsibility

The Contractor is responsible for:

1. Ensuring timely procurement of all equipment.

2. Ensuring compatibility between provided equipment and existing infrastructure.

3. Providing adequate personnel and equipment to complete work within the Period of

Performance.

4. Preventing schedule delays caused by inadequate resource planning.

Failure to provide necessary resources shall not justify schedule extension unless authorized in writing by the Contracting Officer.

10.0 Personnel Requirements

10.1 General Personnel Standard

The Contractor shall provide qualified, trained, and competent personnel sufficient in number and capability to perform all work required under this Statement of Work within the Period of

Performance.

All personnel shall be capable of safely performing work in a high-voltage electrical environment within an active diplomatic facility.

10.2 Licensed Electrical Worker (LEW) Requirement

The Contractor shall engage a Licensed Electrical Worker (LEW) certified in accordance with

Singapore regulations for high-voltage systems.

The LEW shall:

1. Supervise all work involving 600V and above systems.

2. Supervise all 22kV shutdown and restoration procedures.

3. Approve switching sequences prior to execution.

4. Verify de-energization prior to commencement of removal or installation activities.

5. Oversee safe re-energization and restoration procedures.

Proof of LEW certification shall be submitted prior to commencement of high-voltage operations.

10.3 Qualified Electricians

All electrical personnel performing installation, termination, testing, or commissioning shall:

1. Be trained in electrical safety practices.

2. Be competent in low-voltage and high-voltage systems relevant to this project.

3. Be trained in Lockout/Tagout (LOTO) procedures.

4. Be capable of using insulated tools and testing equipment.

5. Be capable of interpreting single-line diagrams and wiring schematics.

Personnel performing breaker configuration and testing shall be familiar with Air Circuit Breaker

(ACB) operation and trip unit configuration.

10.4 High-Voltage Work Staffing

For all high-voltage shutdown and restoration activities involving 22kV systems:

1. A minimum of two (2) qualified personnel shall be present at all times.

2. One individual shall be designated as the responsible supervisor.

3. Personnel shall not work alone during high-risk switching operations.

Failure to meet minimum staffing requirements may result in suspension of work.

10.5 Work at Height Personnel

If any work exceeds 1.5 meters (5 feet) above finished floor level, personnel performing such work shall:

1. Be trained in fall protection procedures.

2. Have current training certification.

3. Use approved fall protection systems where required.

Training documentation shall be provided prior to execution of elevated work.

10.6 Safety and PPE Training

All personnel assigned to this project shall:

1. Receive a project-specific safety briefing prior to commencing work.

2. Be trained in the use of required Personal Protective Equipment (PPE).

3. Understand arc-flash hazards associated with electrical systems.

4. Understand emergency response procedures applicable to Embassy facilities.

Personnel who fail to comply with safety requirements may be removed from the site.

10.7 Security and Conduct Requirements

All Contractor personnel shall:

1. Comply with Embassy security procedures.

2. Follow escort requirements where applicable.

3. Carry required identification while on Embassy property.

4. Conduct themselves in a professional manner appropriate to a diplomatic facility.

Personnel under the influence of alcohol or controlled substances shall be denied entry.

10.8 Subcontractor Personnel

If subcontractors are used, the Contractor shall ensure:

1. Subcontractor personnel meet all qualification requirements stated in this section.

2. Subcontractor personnel comply with safety and security requirements.

3. The Contractor maintains full responsibility for subcontractor performance.

11.0 Performance Standards

11.1 General Performance Requirement

All work performed under this contract shall meet professional electrical engineering and construction standards applicable to high-voltage and low-voltage power distribution systems.

The Contractor shall ensure that performance meets or exceeds:

1. Applicable IEC standards.

2. Applicable Singapore electrical regulations.

3. Manufacturer installation and commissioning requirements.

4. Embassy operational and safety requirements.

5. Industry best practices for high-voltage switching and breaker installation.

Performance deficiencies shall require correction at no additional cost to the Government.

11.2 Quality of Workmanship

All installation work shall demonstrate:

1. Proper alignment of breakers with busbar systems.

2. Accurate termination of conductors.

3. Proper torque application to all bolted electrical connections.

4. Clean and organized wiring within panels.

5. Secure mounting of all equipment.

6. Proper labeling of circuits, devices, and control wiring.

7. Compliance with clearance and spacing requirements.

Workmanship shall be free of:

• Loose conductors

• Improperly terminated lugs

• Inadequate mechanical support

• Unlabeled wiring

• Exposed live parts

11.3 System Reliability

The installed system shall:

1. Operate reliably under normal operating conditions.

2. Withstand expected load conditions without nuisance tripping.

3. Maintain stable operation following high-voltage restoration.

4. Provide consistent and repeatable remote control functionality.

5. Maintain communication integrity with the Building Management System (BMS).

Any instability or malfunction identified during commissioning shall be corrected prior to acceptance.

11.4 Timeliness

The Contractor shall complete all work within the thirty (30) calendar day Period of

Performance.

Performance shall demonstrate:

1. Timely submission of required deliverables.

2. Timely coordination of shutdown windows.

3. Timely correction of deficiencies.

4. Adequate planning to prevent avoidable delays.

Failure to meet schedule requirements without approved modification may be considered non-performance.

11.5 Technical Accuracy

All configuration and settings shall:

1. Match approved submittals.

2. Be properly documented.

3. Be consistent with coordination requirements.

4. Be verified through functional testing.

Protection settings shall be applied accurately and confirmed during testing.

11.6 Monitoring and Communication Performance

Power monitoring meters shall:

1. Accurately display voltage, current, power, and other relevant parameters.

2. Capture and log surge current events.

3. Transmit data using BACnet protocol.

4. Integrate properly into the existing BMS infrastructure.

Communication errors, data instability, or inaccurate readings shall be corrected prior to

11.7 Safety Performance Standard

The Contractor shall perform all work without:

1. Safety violations.

2. Uncontrolled energization.

3. Improper Lockout/Tagout implementation.

4. Injury caused by unsafe work practices.

Repeated safety violations may result in suspension of work.

11.8 Documentation Performance

All required documentation shall:

1. Be complete.

2. Be technically accurate.

3. Reflect actual installed conditions.

4. Be submitted within required timeframes.

5. Be free from internal inconsistencies.

Incomplete or inaccurate documentation may delay acceptance.

12.0 Inspection and Testing Requirements

12.1 Government Inspection Authority

The Government reserves the right to inspect all work performed under this contract at any time during execution.

Inspection may include, but is not limited to:

1. Observation of breaker removal and installation.

2. Observation of high-voltage shutdown procedures.

3. Verification of Lockout/Tagout implementation.

4. Review of workmanship quality.

5. Review of documentation and submittals.

6. Witnessing of testing and commissioning activities.

Inspection by the Government does not relieve the Contractor of responsibility for compliance.

12.2 Pre-Energization Inspection

Prior to re-energization of any system, the Contractor shall perform and document:

1. Verification of proper mechanical installation of breakers.

2. Verification of torque values for all terminations.

3. Confirmation of correct phase identification.

4.…