A.02.08 Statement of Work Amended 31JAN24.pdf

US Army Corps of Engineers Europe District

APO AE 09049

ar169

Statement of Work Project Number:

OHASIS-2020/21-40445

Electrification of Redemption Hospital

Monrovia, Liberia

Prepared by:

Design Section

Engineering Branch

16 MAY 2023

01 10 10 Statement of Work Electrification of Redemption Hospital– Monrovia, Liberia

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SECTION 01 10 10

STATEMENT OF WORK

SECTION TABLE OF CONTENTS:

1 GENERAL

2 CIVIL AND GEOTECHNICAL (Not applicable)

3 ARCHITECTURAL

4 STRUCTURAL

5 ELECTRICAL

6 MECHANICAL & PLUMBING (Not applicable)

ATTACHMENTS

Attachment # 1 Conceptual Site Plan Attachment # 2 Conceptual Floor Plan Attachment # 3 Structural Calculations Guideline Attachment # 4 Dedication Plaque Attachment # 5 Existing Electrical Distribution System Pictures.

1.0 GENERAL

1.1 PROJECT DESCRIPTION

The Request for Proposal (RFP) provides parameters for a design-build project for renovation of the Redemption Hospital Complex in Monrovia, Liberia; Latitude 06°22’10.85“N, Longitude 10°47’30.95“W.

The project includes the following general items of work, detailed requirements are contained elsewhere in this Statement of Work:

a. Demolish existing electrical distribution system including Manual Transfer Switch (MTS).

b. Provide a new interior electrical distribution system with power system surge protection/ Voltage stabilizer.

c. Provide dedicated Automatic Transfer Switch (ATS) for Back-up Generator system for critical areas only to include Operating room (OR), X-Ray & Lab, OBGYN Ward, Emergency Room (ER), and Central Pharmacy.

d. Provide new LED lighting and controls system.

1.2 GENERAL REQUIREMENTS

The Contractor must deliver fully functional, turnkey type facilities (without mobile furniture) as described in this document. The work includes - but is not limited to - design, demolition, fabrication, delivery, installation, construction, and site work.

The facility in this project must be complete and usable to meet codes and technical and functional requirements per this Statement of Work (SOW). The proposal price must include all design, calculations, approvals, certificates, fees, labor, material, equipment, direct overhead, indirect overhead, general and administrative expenses (G&A) and general conditions to complete this project as described in the SOW.

These design and product requirements are minimum requisites. Compliance with the provisions of this section by subcontractors is the responsibility of the Contractor.

1.2.1 BASE ITEMS AND OPTIONAL ITEMS

This Statement of Work addresses the technical requirements necessary to complete all work associated with this project. For information and requirements regarding the allocation of pricing between elements of the work, refer to Specification

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Section 01 22 00 PRICE AND PAYMENT PROCEDURES. The Schedule of Items identifies the breakdown between the individual base items and optional items for all work identified in this Statement of Work, associated drawings, and attachments. All work as described in these documents is included in either the Base or Optional Items. Consider all items not specifically identified in the Optional Items as part of the Base Items.

1.3 FUNCTIONAL AREAS

Refer to the attached drawings for a depiction of the required functional areas and spatial adjacencies for the site and new facilities/structures.

1.4 SUBMITTALS

Designer of Record approval is required for submittals with a “DA” designation.

Government approval is required for submittals with a “G” or “GA” designation.

Submittals having an “FIO” designation are for Contractor Quality Control approval. Submit the following to the Contracting Officer (KO) in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Demolition Plan; G

Sequencing Plan; G

SD-05 Design Data

65% Pre-Final Design; DA/GA

95% Final Design; DA/GA

100% Corrected Final Design; DA/GA

SD-06 Test Reports

Test Results and Reports; FIO

1.4.1 DESIGN SUBMITTALS

Provide a complete design package at each milestone, as described in RFP Section 01 33 16-DESIGN AFTER AWARD. The milestones for this project are indicated above in Section 1.4 SUBMITTALS. The specific requirements of each milestone are described in each discipline-specific section of this Specification.

1.4.2 TEST REPORTS

Provide all test results and reports identified in this SOW to the Government as a submittal in accordance with RFP Section 01 33 00-SUBMITTAL PROCEDURES. Submittals will be considered for information only (FIO) submittals unless specifically identified as a submittal requiring government approval. Coordinate with the KO after award for the specific items to be included in the submittal register.

1.5 MATERIALS AND EQUIPMENT

Materials and products used must be durable, heavy duty, industry standard. The equipment must be the manufacturer’s standard quality and must be compatible with all other equipment and materials within the system or assembly. Equipment and materials must include all connections and accessories necessary to ensure operability and correct installation according to manufacturer’s requirements.

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Provide a nameplate secured to each major piece of equipment. Each nameplate must have the manufacturer’s name, address, contact information, type or style, model or serial number, and catalog number. The definition of a “major piece of equipment” is at the discretion of the KO.

1.5.1 LIFE-SPAN

The facility and the installed equipment must be permanent construction with an expected lifespan of more than 25 years.

1.5.2 MAINTAINABILITY

Provide low maintenance materials and systems appropriate for the project climate and location.

1.5.3 OPERABILITY

Systems (including but not limited to architectural, electrical, communications, and mechanical systems) must be simple to operate and easy to maintain.

1.5.4 STANDARDIZATION

Provide standardized materials, products, equipment, and systems to minimize the requirements for replacement parts, storage facilities, and service requirements.

1.6 DESIGN DIMENSIONS

Develop the design using the metric system.

1.7 DESIGN CRITERIA

Project design, site facilities, utility systems and material standards must be in accordance with Host Nation building codes (current versions as of the date of RFP, unless otherwise indicated). In the absence of Host Nation building codes, use the International Building Code (IBC) 2018 and the codes, technical standards, and regulations referenced in this RFP.

While this RFP references various source standards and specifications, all design documents must meet Host Nation codes and requirements. It is the designer's responsibility to demonstrate that the Host Nation standard is equal to the cited standard or specifications being supplanted. Apply the more restrictive standards when conflicts arise between the requirements of this RFP and any referenced or other applicable codes, standards or regulations. If equivalency cannot be met, use the more stringent requirement and quote both codes verbatim in correspondence to the KO. The designer is responsible to determine the required material and execution standards where specific standards are not indicated.

Provide an electronic copy of the local Host Nation standards and building codes in their original language as related to facility design and construction.

1.8 SPECIAL CONSTRUCTION REQUIREMENTS

1.8.1 DEMOLITION

The Contractor is responsible for all required demolition as indicated in this scope.

Submit a Demolition Plan to be tracked via the submittal register indicating all demolition, abatement, and disposal methods.

1.8.1.1 ABATEMENT AND DISPOSAL

All demolished materials, including hazardous materials identified below, must be abated and disposed of in accordance with local laws, codes and regulations. The Contractor is responsible for all required testing before, during and after demolitions as well as for all required compliance with safety standards.

1.8.1.2 LOCATION OF HAZARDOUS MATERIAL

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The Contractor is responsible to survey the site and determine if hazardous materials exist. If hazardous materials are found to exist, immediately notify the KO and provide the results of the relevant sampling and testing. Provide the hazardous material report no later than 30 days after Notice to Proceed (NTP) for information and approval.

1.8.2 PROTECTION OF WORK AREA

1.8.2.1 DUST AND DEBRIS CONTAINMNET

Seal the project area with construction barriers and dust partitions in order to contain construction dust and debris and maintain a clean environment outside of the work area. In addition to protections within the work area, provide temporary protection for all finishes from the entrance of the facility to each area of work. Patch and repairing any damage caused during construction. Coordinate the locations of barriers with the Government prior to the start of work.

1.8.2.2 PROTECTION OF FURNITURE, FIXTURES, AND EQUIPMENT

Protect all existing furniture, fixtures, and equipment that remain within the work area. Coordinate with the Government for any special protection measures required for sensitive equipment. The Contractor is responsible for repairing or replacing any damage caused during construction. Either the Contractor or the KO may request to conduct a preconstruction survey of furniture, fixtures, and equipment with both the Contractor and Government representative present.

1.8.2.3 NOISE AND VIBRATION CONTROL

Employ demolition and construction methods that minimize the production of sound and vibration. Coordinate the schedule of especially loud or disruptive activities with the KO prior to the start of work.

1.8.2.4 PROTECTION OF EGRESS AND LIFE SAFETY

The Contractor must not take actions that hinder existing egress paths or disrupt operation of life safety systems without prior coordination with the KO and all applicable authorities having jurisdiction (AHJ). The Contractor is responsible for supplying signage or other protective measures as required by the KO or AHJ prior to impeding the egress path or life safety system.

1.8.3 SEQUENCING OF CONSTRUCTION WORK

The Contractor must sequence construction to allow the campus to remain occupied during construction. Do not block access to occupied areas during construction.

Utility and communication services must remain functional in all occupied areas.

Priority will be given to critical areas to include the Operating room (OR), X-Ray & Lab, OBGYN Ward, Emergency Room (ER), and Central Pharmacy.

Provide a Sequencing Plan with the 95% Final Design Submittal. The Sequencing Plan must describe the proposed performance of construction operations to comply with the stated sequencing requirements. The Sequencing Plan must include a graphical depiction of the sequencing of each work area and mobilization/staging area. The Sequencing Plan is in addition to the requirements of RFP Section 01 32 01-PROJECT

SCHEDULE.

END OF SECTION

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2.0 CIVIL AND GEOTECHNICAL

(Not Applicable)

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3.0 ARCHITECTURAL

3.1 PROJECT DESCRIPTION

Provide all architectural work required for the electrical upgrade of an existing single-story, building complex that serves as a clinic.

The existing clinic must be operational at all times. Close coordination is essential between the KO / user representative and the contractor for time and areas where work can be performed.

Extensive coordination is required between the architectural work and structural, and electrical requirements of this project.

3.1.1 DESIGN

Provide a design and construction package that uses the space allocations, functional adjacencies, design details, and features given or referenced in this RFP. The design must incorporate all referenced codes and regulations. The Contractor is responsible for creating additional details as required to complete a full design. All details must conform to the requirements of this RFP and are subject to the approval of the KO. Since no as-built drawings are available, these have to be prepared by the contractor as part of this contract. The Contractor is responsible for providing a design that meets all requirements of the User and the codes and criteria referenced in this Statement or Work.

3.1.2 DESIGN SUBMITTALS

Provide all architectural submittals after contract award in accordance with RFP Section 01 33 16-DESIGN AFTER AWARD and 01 33 00-SUBMITTAL PROCEDURES. Prepare and submit the documents listed below at the submittals indicated.

3.1.2.2 65% DESIGN SUBMISSION

Include the following drawings and reports as applicable to the project:

a. Code Summary – Provide code compliance summary indicating Host requirements.

b. Floor Plans – Provide all floor plans, indicating room names, areas, and basic dimensions, scale 1:50.

c. Ceiling Plans – Provide reflected ceiling plans for all rooms, indicating ceiling materials and fixtures, scale 1:50.

d. Preliminary Design Analysis – Provide a narrative explaining the design and indicating how the design and materials meet the requirements of this SOW.

e. Preliminary Specifications – List the technical titles and short text descriptions for all performed work.

f. Pre-Final Design Analysis – Provide a narrative explaining the design and indicating how the design and materials meet the requirements of this SOW.

g. Pre-Final Specifications – Provide detailed explanations of requirements for all performed work or provide product specific manufacturer information (brochures, technical information, cut sheets) for all materials and products to be provided/installed.

3.1.2.3 95% DESIGN SUBMISSION

The 95% Submittal provides a complete and final set of contract documents essentially ready for construction by the D/B Contractor. All previous government review comments must have been addressed. Include the following drawings and reports as applicable to the project:

a. All documents from the 65% submittal updated to incorporate 65% review comments.

b. Finish Schedule – Indicate all proposed finishes.

c. Final Design Analysis – Provide a finalized narrative describing all work to be performed on the project and how it meets the functional and code requirements of the project. Provide product specific manufacturer

8-Jun-23 Page 8 of 23 information (brochures, technical information, cut sheets) for all materials and products to be provided/installed.

d. Final Specifications – Provide line items and detailed descriptions of all work to be performed.

3.1.2.4 100% DESIGN SUBMISSION

The 100% Submittal provides a complete and final set of contract documents ready for construction by the D/B Contractor. All previous government review comments must have been addressed. Include all drawings, specifications and calculations from the 95% Submittal updated to incorporate all previous review comments.

3.2 TECHNICAL CRITERIA AND STANDARDS

Design and construct the project in accordance with the requirements outlined in Section 1.7 DESIGN CRITERIA.

3.2.1 LIFE SAFETY REQUIREMENTS

The Design must meet all Host Nation and local Fire Suppression System codes and requirements.

3.2.2 HANDICAPPED ACCESSIBILITY REQUIREMENTS

Not applicable.

3.3 GENERAL SCOPE OF WORK

Design the architectural elements of this facility to withstand all site-specific environmental conditions such as wide seasonal temperature swings, local wind, rain and earthquake conditions. All architectural features must be appropriately braced for anticipated seismic activity. The Contractor may propose alternate building materials to meet the facility’s requirements, but final selection of materials is subject to the approval of the KO. Consider economics not only in the initial acquisition, but also in the future maintenance of the materials, when selecting materials and building systems to be incorporated into the project. When requested, the Contractor must provide documentation demonstrating that a chosen alternative material is life cycle cost effective.

3.4 DETAILED SCOPE OF WORK

The Contractor is responsible for the following specific tasks required for the construction of this facility.

3.4.1 DEMOLITION

The Contractor is responsible for all required demolition as indicated in this scope.

Demolition work includes, but is not limited to, the following items, in areas affected by the SOW:

a. Dismantle and remove existing suspended ceilings;

b. Dismantle and remove existing electrical and lighting systems;

c. Cut openings through and provide wall slits in exterior walls;

d. Cut openings through and provide wall slits in interior walls;

e. Cut openings through existing reinforced concrete ceiling slabs;

3.4.1.1 DEMOLITION AND DISPOSAL

All demolished materials must be abated and disposed of in accordance with local laws, codes and regulations. The Contractor is responsible for all required testing before, during and after demolitions as well as for all required compliance with safety standards.

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Submit a Demolition Plan to be part of the QC Plan or a separate submittal to be tracked via the submittal register, indicating the demolition, abatement, and disposal methods.

3.4.1.2 DEMOLITION AND DISPOSAL OF HAZARDOUS MATERIAL

The Contractor is responsible to survey the site and determine if hazardous materials exist. If hazardous materials are found to exist, immediately notify the COR, and provide the COR with the results of the relevant sampling and testing.

Provide the hazardous material report to the COR no later than 30 days after Notice to Proceed (NTP) for information and approval.

3.4.2 BUILDING SYSTEM AND MATERIALS

The intent of this RFP is to allow the Contractor the maximum flexibility to meet the architectural scope of this renovation in an economical manner without sacrificing good engineering practices, quality materials and systems. The Government requires low or no maintenance finish materials to the greatest extent possible. Building materials as described herein for walls and ceilings are minimum requirements and may require revision based on code compliance and criteria.

3.4.3 CONSTRUCTION WORK

Provide the following architectural work.

3.4.3.1 INTERIOR AND EXTERIOR WALLS

Provide openings in exterior and interior walls as required by electrical systems and utilities. Openings shall be cut or drilled using method to produce the least noise, vibration and dust. Patch repair to match existing material, surface texture and color. Provide weather tight caulking after installation of new electrical systems and utilities. Close existing wall openings of various sizes (for duct and piping or cables) that are not used after changing the electrical systems. Both exterior and interior walls surfaces must be patched and painted with materials suitable for outside application.

3.4.3.2 INTERIOR AND EXTERIOR PAINT

Paint all interior and exterior walls where patched and repaired or where existing openings are being closed after removal / demolition of utilities and systems.

Provide a minimum of two coats of paint over compatible primer. Paint must be lead free, water resistive and open to vapor diffusion. All paint must be low VOC and washable after drying. On exterior wall surfaces, provide paint suitable for outside application.

3.4.3.3 SUSPENDED CEILINGS

Where new electrical systems and utilities require extensive modifications to existing suspended ceilings, provide new suspended ceilings in the whole area or room as described below. Install ceilings to provide a clear room height in accordance with Host Nation, and local building codes, but not less than 2.5 m above finished floor surface in any room. Do not use combustible materials for ceiling construction. Submit data sheets, color, and pattern of all ceiling finishes to the COR for review and approval. New ceilings are to match existing ceiling aesthetic to the greatest extent possible.

3.4.3.4 EXTERIOR DEDICATION PLAQUE

Provide a dedication plaque approximately 600 mm wide x 450 mm high fabricated from powder coated aluminum with permanent printed 18 mm high, “Arial“ font letters as indicated below. Adhesive applied images or text are not acceptable.

Provide the emblem of the United States Africa Command between two flag emblems, one flag of the United States of America and one of the Liberia. Plaque location and mounting height to be directed by the KO.

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The exterior dedication plaque must have text similar to the following in English:

“The Electrification of Redemption Hospital was accomplished as a partnership between the people of the United States of America and the people of Liberia, with support from the United States Africa Command and the Office of Security Cooperation, U.S. Embassy Liberia and Liberia Ministry of Health.” Provide the year of project completion below the text. Coordinate the final dedication plaque verbiage and graphics with the KO prior to procuring the sign.

See attached dedication plaque template for reference.

3.4.3.5 EXTERIOR ROOM SIGNS

Provide exterior room identification signage for each room indicated below. Sign plate must be factory finished made from corrosion resistant metal or acrylic plastic with holes to fasten sign on walls with screws and expansion shield.

Surface mount signage with concealed mechanical fasteners adjacent to room entry doors. At a minimum, provide signs at the following rooms:

a. Mechanical Room

b. Electrical Room

c. Generator Room

3.4.4 FINAL CLEAN-UP

Clean all areas impacted by the work under this project. This includes all rooms where renovation work was completed and all circulation paths (corridors, vestibules, etc.) leading to work areas from building entrances. Follow the cleaning instructions provided by the manufacturers for all building material and equipment. Follow the application instructions provided by all cleaning agent manufacturers. Provide all devices and tools required for the performance of the work to include all necessary additional scaffolding and ladders. Remove all temporary protective coatings left in place during construction. Liquid cleaners must not contain any volatile organic content (VOC).

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4.0 STRUCTURAL

4.1 GENERAL

The Contractor must provide and perform structural engineering design and construction services as required to provide a complete, accessible, functional and usable project.

The primary structural effort of this project includes

a. The design and construction of multiple new reinforced concrete equipment pads with proper anchorage for both interior and exterior application.

b. The design and construction non-structural components feature, including but not limited to; bracing and anchorage of new electrical equipment, and non-bearing partition walls, etc.

c. Other elements include but are not limited to foundations, superstructure, lateral load stability and diaphragm design, and support of electrical equipment, concrete pads, and civil/ site structures.

The Contractor must have as part of his design team a licensed structural engineer per Host Nations standards. If work is being performed in a country that does not have licensed structural engineers, then engineering degrees along with extensive structural design experience can be submitted to the KO for qualification verification and approval. The structural engineer’s licensure or qualifications must be submitted to the KO in the design quality control plan prior to the start of design. The Contractor’s structural engineer must be responsible for the design of any part of the building structural systems.

The structural design of the foundation, non-structural components, superstructure, roofing system, and any other structural aspects must be in accordance with the design criteria listed in this document.

4.2 APPLICABLE DESIGN CRITERIA

All Design, Safety in Construction, Materials, and Performance of Construction Services must be in accordance with current local or national Host Nation codes and standards. In absence of Host Nation codes, use 2018 International Building Code and ASCE 7-16 for structural calculations. In case of conflicting requirements between the various elements, the more stringent criteria must govern.

Any material or construction installed by the Contractor as part of this contract that does not meet the requirements of this RFP or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense.

Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with paragraph 1.7 DESIGN CRITERIA of this document.

4.3 SUBMITTALS

4.3.1 DESIGN SUBMITTALS

The contractor must provide the structural submittals after contract award in accordance with Section 01 33 00 SUBMITTAL PROCEDURES. In addition to General Section 1.4 SUBMITTALS of this document the following documents must be submitted.

4.3.1.1 DRAWINGS, DESIGN CACULATIONS, AND SPECIFICATIONS

The following structural detail drawings must be provided by the Contractor as required, but must conform to the requirements of this SOW and are subject to the approval of the Contracting Officer (KO).

4.3.1.2 STRUCTURAL CALCULATIONS, DESIGN ANALYSIS, AND DRAWINGS

The contractor must submit the structural calculations of all load bearing structural elements and their connections related to this RFP in a design analysis

8-Jun-23 Page 12 of 23 provided with each submittal. The design analysis must state and list the basis of design for all project aspects and features. The design analysis and calculations must be in accordance with the enclosed NAU Engineering Guideline 01/2016 Preparation of Structural Calculations. Additionally the wind design must be calculated using the wind tables provided, see attachment #3 for reference. The current local or national Host Nation codes and standards on which the structural calculation are based must be referenced in the calculations. If applicable, an electronic copy of the applicable local or national Host Nation codes must be provided. Structural calculations must be sequentially numbered for ease of referencing for all submittal stages. Construction drawings must include:

65% Design Submittal

a. Documentation of all design criteria, codes, and standards used. The Contractor must submit documentation/ copy of the local building codes that shows the applicable design requirements for wind, seismic, etc.

b. Document all design loads used including dead loads, floor live loads, roof loads, wind loads, seismic loads, etc.

c. Document all material properties assumed for design. Include properties for concrete, reinforcement, masonry, structural steel, cold-formed steel, wood, etc. Material properties listed must be detailed enough for materials suppliers to meet criteria assumed by the designer.

d. Preliminary foundation plans which include all typical structures, showing dimensions, arrangements, locations referred to a column line grid system, type of foundation and foundation obstructions. Include the layout of all slabs, footings, piers, grade beams, piles, etc., showing all foundation features of the design. (min. scale 1:50). Preliminary Foundation design.

Geotechnical site investigation and soil and concrete material properties submittals.

d. Preliminary floor plans which provide information of the main structural system of the construction giving general information about dimensions of main elements such as columns, beams, bearing walls, etc. (min. scale 1:50)

e. Reinforcement drawings for members (min. scale 1:50). Reinforcement calculations. Material specifications for reinforcement.

f. Details of connections for primary members (min. scale 1:10). Calculations for members. Material section properties and specifications for all framing members.

95% Design Submittal

a. All items from the 65% Design Submittal requirements

b. Complete reinforcement drawings (min. scale 1:50)

c. All necessary sections and details of the load bearing structure (min. scale

1:20)

d. Shop drawings of the steel structure (min. scale 1:50)

e. Details of all connections for the structure (min. scale 1:10)

f. Detailed specifications that are typically sent to sub-contractors.

100% Submittal

a. The 100% Submittal provides a complete and final set of contract documents ready for construction. All previous government review comments must have been addressed. Include all updated drawings, specifications and calculations from the 95% Submittal.

b. The design criteria actually used for the structural design must be referenced in the structural notes on the drawings including but not limited to applicable codes, standards and specified material strengths.

c. Letter of certification from the quality control engineer.

Record Drawing Submittal

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a. The Record Drawing Submittal provides a complete and final set of record drawings documenting site conditions based on a survey of the final construction performed by the Contractor.

The design documents actually used for the structural design must be referenced in the structural notes on the drawings. The design will not be released for construction prior to approval of the 100% design submittal.

4.4 PROOFING OF STRUCTURAL DESIGN

The Contractor must have a senior level engineer (10 years structural design experience) other than the designer, perform an independent review of all specifications, drawings, design analysis, calculations, and other required data prior to submission to the Government. In each design submittal, submit a letter of certification from the structural engineer performing the independent review stating that they “have checked the structural design calculations, analysis, and drawings and certify that these comply with the applicable building code requirements and standards.” This is in addition to any host nation requirements for structural engineering oversight.

4.5 STRUCTURAL DESIGN CRITERIA

Structural design methods and allowable stresses or load factors for the various structural materials must be in accordance with the Applicable Design Criteria paragraph 4.2. Requirements in the codes, specifications and industry standards are requirements of this document, unless specified otherwise. The references used for the project design and contract documents must be included in the design analysis required for this project.

4.5.1 ALLOWABLE SOIL BEARING PRESSURE

In the absence of a soils investigation, foundations for single story structures may be designed using allowable bearing pressures of 1500 psf (72 kN/m2) provided that no unsuitable soils, such as muck or expansive clays, are discovered during excavation of the foundations. If unsuitable soils are discovered, the structural engineer must be notified to direct corrective measures as required.

4.5.1.1 MINIMUM EXCAVATION AND GRADING REQUIREMENTS

Minimum excavation and grading requirements must be in conformance with the requirements in the Applicable Design Criteria paragraph 4.2.

4.5.2 MINIMUM STRUCTURAL DESIGN LOADS

The design loads must be determined in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. The design load criteria specified herein are minimums; the Contractor is responsible for verifying the actual design loads for this site. If actual design loads are different than that listed herein, the Contractor must notify the KO. The Contractor should determine if special loadings must be considered and notify the KO. Any cost and/or schedule impact due to the Contractor’s failure to notify the KO of these requirements specified herein four weeks before the submittal is due must be to the Contractor’s account. Design loads must be included in the structural notes on the drawings. The minimum design load criteria for this project as follows:

4.5.2.1 DEAD LOADS

The structural system must be designed and constructed to safely support all dead loads, permanent or temporary, including but not limited to self-weight, partitions, insulation, ceiling, floor covering, photovoltaics, and all equipment that is fixed in position. Loads from architectural/mechanical/electrical equipment must be coordinated with the appropriate discipline. All loads and load case combinations must be in accordance with the codes and standards listed in the

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Applicable Design Criteria paragraph 4.2. Load factors for designs must be based on the applicable material design standard.

4.5.2.2 FLOOR LIVE LOADS

Floor live loads must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2 for the anticipated usage.

4.5.2.3 ROOF LOADS

Roofs must be designed to support live loads; and support wind loads including components and cladding in accordance with the Applicable Design Criteria paragraph 4.2.

4.5.2.4 HORIZONTAL LOADS

The structural system wind design, including components and cladding, and the seismic design must be in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. Research local wind requirements and indicate in the design analysis and wind calculations whether a wind speed greater than the code minimum is required. When IBC 2018 and ASCE 7-16 are employed for the wind design, the minimum design wind speed must be 193 km/h (120 mph). When IBC 2018 and ASCE 7-16 are employed for the seismic design, a Site Class D and seismic spectral accelerations Ss = 0.28g and S1 = 0.11g must be used as minimums unless higher values should be used based on local requirements. Reference attachment #3 for wind code tables.

4.6 MATERIALS

The use of the recommended materials and/or alternative materials must be in conformance with the publications listed in the Applicable Design Criteria paragraph 4.2. Any exceptions must be noted. Alternative materials may be submitted to the KO for approval if the Contractor determines the materials are more economically viable for this geographic region. Any material or construction that does not meet the requirements of this SOW or does not meet the applicable codes and standards must be removed and replaced at the Contractor’s expense.

4.6.1 REINFORCED CONCRETE

All concrete must be at least equivalent C 20/25 and reinforcing steel must be equivalent Grade B500A conforming to the applicable Eurocode standard. All concrete must be machine mixed. All concrete for each member must be poured on the same day and not allowed to cure between pours. Rebar must be free of rust.

All materials must be cleaned to remove dust and debris prior to the application of concrete.

4.6.1.1 CONCRETE MIXTURE PROPORTIONS

Concrete mixture proportions must be the responsibility of the Contractor.

Mixture proportions must include the dry weights of cementitious material(s); the nominal maximum size of the coarse aggregate; the specific gravities, absorptions, and saturated surface-dry weights of fine and coarse aggregates; the quantities, types, and names of admixtures; and quantity of water per cubic meter concrete.

All materials included in the mixture proportions must be of the same type and from the same source as will be used on the project. Concrete mixture design must be submitted and approved by the KO.

4.6.2 STRUCTURAL STEEL

Structural steel must be of a minimum steel grade equivalent S 235 conforming to the applicable Eurocode standard.

4.6.3 HOLLOW STEEL SECTIONS

Hollow steel sections must be of a minimum steel grade equivalent S 235 conforming to the applicable Eurocode standard.

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4.6.4 COLD-FORMED STEEL FRAMING MEMBERS

Cold-formed steel framing members must have a minimum steel grade equivalent S 235 conforming to the applicable Eurocode standard.

4.7 STRUCTURAL & NON-STRUCTURAL SYSTEM

4.7.1 RENOVATION PROJECTS

Rehabilitation, repair, replacement, or new elements comprising the lateral force resisting system in the buildings must be compatible with the existing structural elements.

4.7.2 NEW EQUIPMENT PAD

The new equipment pad must be of reinforced concrete, and the actual size, thickness and reinforcements of the equipment pad must be designed by the structural engineer in accordance with the codes and standards listed in the Applicable Design Criteria paragraph 4.2. The Contractor must coordinate with the equipment manufacturer to determine the pad size and anchorage requirements. A minimum 15 cm thickness and reinforced with either bar or mat reinforcing having a minimum area of reinforcing of 0.2% of the slab cross sectional area and located 4 cm clear from the top surface of the slab must be used. For pads that will be placed on existing concrete slab, the existing concrete surface must be prepared, cleaned, roughened, and doweled prior to new concrete placement. For pads on ground, if required, place 15 cm of compacted granular sand material between the undersides of the pad.

4.7.3 NON-STRUCTURAL COMPONENTS

The non-structural components must provide vertical and lateral load carrying capacity and must provide durability, maintainability, and cost effectiveness.

Roof openings and all supports for electrical and mechanical equipment must be detailed or adequately described on the drawings or in the specifications. The structural designer must ensure that all architectural/mechanical/electrical equipment is properly anchored/braced and that these elements are adequately framed and connected as required by the design criteria, especially where seismic and wind design is required.

4.8 TESTS AND INSPECTIONS

Construction inspections and material testing must be in accordance with local building codes. If no local codes are available regarding testing and inspection, follow guidance in the IBC.

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5.0 ELECTRICAL

5.1 GENERAL

This section includes requirements for the design, procurement, installation, and testing of a complete electrical power system. Provide a complete design and perform all labor and provide all materials, equipment, machinery, supervision, and any other items necessary to complete the electrical systems.

Electrical design must conform to the design criteria, standards, codes, and locally accepted equivalent host nation practices. Specially selected design products must have been proven reliable and trouble-free in commercial service locations for two years and longer in an environment similar to that of the project site.

5.1.1 APPLICABLE DESIGN CRITERIA

Project design must be in accordance with the requirements outlined in Section 1.7

DESIGN CRITERIA.

In the absence of Host Nation Building Codes, use the International Building Codes (IBC) and/or the following U.S. Codes and Technical Standards and regulations:

International Electrical Commission Publications I.E.C.:

IEC 60309 Standard for plugs, socket-outlets, and couplings for industrial purposes IEC 60144 Degrees of protection of enclosures for low voltage switchgear and control gear IEC 60227 Polyvinyl chloride insulated cables of rated voltages to and including 450/750V IEC 60423 Outside diameters of conduits for electrical and threads for conduits and fittings IEC 60454-1-3 Specifications for pressure-sensitive adhesive tapes for electrical purposes IEC 60614 Specification for conduits for electrical installations IEC 61537 Cable Tray Systems and Cable Ladder Systems for (2001) Cable Management IEC 61439 Low-Voltage Switchgear and Control-gear Assemblies IEC 60331-21 Insulation integrity for 180 minute IEC 60582-22 Luminaires for Emergency Lighting IEC 62305 Lightning Protection System IEC 62612 Self-ballasted LED Lamps for General Lighting Services with

Supply voltages > 50V

5.1.2 SD-03 PRODUCT DATA

The following product data must be submitted and accepted by the KO prior to installation and commencement of required feature of work:

a. Metal Tubing

b. Conduit Fittings

c. Conductors

d. Outlet and splice boxes

e. Receptacles

f. Toggle Switches

g. Panel board

h. Circuit Breakers

i. Terminal Cabinets

j. Disconnect Switches

k. Conduits

l. Cable Trays

m. Surface Metallic Raceway

n. Lighting Fixtures, including Ballasts and Lamps

o. Manual Transfer Switch (MTS) and Automatic Transfer Switch(ATS)

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5.1.3 SD-02 SHOP DRAWINGS

Submit the following to the KO during construction:

a. Panel boards

b. Circuit Breakers (to be submitted together with Item a)

c. Panel board Accessories (to be submitted together with Item a)

5.1.4 SD-06-09 FIELD TEST REPORTS

Submit the following to the KO during construction:

a. 600V Wiring Test

b. Grounding System Test

c. GFI Interrupter Test

d. Lighting

e. Potential equalization system

5.1.5 DRAWINGS AND DESIGN ANALYSIS

The following electrical detail drawings must be provided as required but must also conform to the requirements of this SOWS and are subject to the approval of the KO. Provide the following drawings and analyses of each of the listed submittals:

65% Design Submittal

a. Legend and Abbreviations.

b. Electrical Site Plan.

c. Electrical design analysis and load calculations.

d. Lighting illumination calculations

e. Demolition plan(s), showing existing conditions and demolition work.

f. Single line diagrams for the building electrical system.

g. Power Plan(s) showing locations of MDP’s (Main Distribution Panels), SDP’s

(Sub-Distribution Panels), generators, transformers, wire ways, power receptacles, ground bars, and electrical connections for mechanical and other equipment. Circuit information must be shown.

h. Lighting Plan(s) showing fixture layouts, Fixture schedule, emergency fixtures, controls, circuiting, and exit signage.

i. Grounding floor plan(s) and risers.

j. 65% Design Analysis (DA) including electrical calculation package.

95% Design Submittal

a. All requirements for the 65% submittal, updated per comments from the 65% review meeting.

b. Additional plans and Risers.

c. 95% Design Analysis.

d. Specifications detailing materials, equipment and installation methods.

100% Design Submittal

a. All requirements for the 95% submittal, updated per the comments for the 95% review meeting.

5.1.6 ELECTRICAL DESIGN ANALYSIS

Provide a design analysis for each design phase of the project. Provide the following minimum information:

a. Load calculations and demand factors to include an additional 25% for future loads.

b. Short circuit calculations and ampere interrupting capacity (AIC) rating of distribution equipment.

c. Electrical coordination study of new building power distribution and protective devices in coordination with existing systems.

d. Voltage drop calculations.

e. Lighting calculations including both general and emergency lighting.

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f. Electrical design narrative describing electrical design components and changes and decisions completed from each design reviews.

g. Catalog cut sheets for cables, light fixtures, MDP, subpanels, circuit breakers, and other unique equipment.

5.2 ELECTRICAL SCOPE

Provide electrical systems design for Redemption Hospital Complex, Monrovia, Liberia. Design must include demolition of existing interior electrical systems and providing new utility power, interior power, lighting, and grounding systems.

This package is comprised of the furnishing, delivery, equipment, and associated protection systems. Design must be phased to ensure critical areas are in operation 100% of the time during construction. Critical areas include the Operating room (OR), X-Ray & Lab, OBGYN Ward, Emergency Room (ER), and Central Pharmacy. Any electrical work in Prevail Bldg. and Isolation Unit Bldg. is not part of this project. Prevail building is currently run by separate NGO. Design to include the following items:

a. Provide service entrance equipment and interior distribution system for entire hospital complex, provide demand load analysis (Load Study). Power System surge protection/Voltage Stabilizer along with MTS for existing prime generators shall be provided for main utility power source.

b. Provide MDP at main electrical room and provide dedicated SDP for each building. Provided feeders from MPD to SPD for each building in EMT conduit, cable installation throughout the facilities must be recessed mounted (under plaster or above ceiling). Replace all wall receptacles and branch circuits.

c. Replace home-run circuit and install safety switch for all existing Split Unit, water pumps and any other existing mechanical equipment.

d. Provide electrical connections and receptacles for all medical equipment.

e. Replace entire existing interior lighting system with LED lighting and controls.

f. Provide a back-up power system using existing generators. Provide MTS for main utility power and ATS for critical building as define above.

g. Provide new electrical TN-S power grounding system.

5.3 DEMOLITION

Disconnect, remove, and dispose of all accessible unused electrical wiring/cabling and equipment involved in this renovation. Remove and dispose all panel equipment, outlets, cabling, lighting fixtures and switches in the renovated space and power for existing air conditioners. Demolition must be minimalized to reduce the amount of wall and ceiling repairs as much as possible. Wires within wall structures that are concrete and not being used for new wire ways may be abandoned in place. Any exposed wire must be demolished. Demolished material must be hauled away and disposed of properly. Demolition must be phased to ensure critical areas of the hospital remain in operation as long as possible and have little down time.

Demolition can be performed after the installation of new distribution system, which would have less impact on the down time. Demolition includes the following and areas defined in this document:

a. Demolish entire interior electrical distribution system to include panels, feeder cabling, branch cabling, outlets, lighting fixtures, switches, home-run circuits to existing A/C, pumps, mechanical equipment, and power to any other hardwired hospital equipment.

5.4 EXTERIOR ELECTRICAL WORK

5.4.1 PRIMARY POWER

Repair existing primary service cable from existing hospital utility transformer pole to terminate in the new Main Distribution Panel (MDP). Service cable must be sized for total capacity of the Hospitals entire sub distribution system plus future load. Size wire appropriately for the load and coordinate with KO and local power company LEC for coordination point.

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5.4.2 EXTERIOR POWER RECEPTACLES

Exterior weatherproof receptacles must be installed at every door entrance along the building exterior. Exterior weatherproof receptacles must be RCD (Ground Fault Circuit Interrupter-GFCI) protected. Most receptacles that are located in corridors of this complex must be considered as exterior.

5.4.3 GROUNDING SYSTEM

Provide a new TN-S grounding system. The potential equalization system to include of the integration of all metal parts of electrical grounding, sanitary, to include metallic cable support systems. Refer to the local Guide for requirements.

The grounding ring material must be 50 mm2 bare copper wire or hot-dip galvanized steel St/tZn (30 x 3.5 mm) buried 800mm deep, 1 meter outside the building foundation with a 16mm diameter x 2.4m copper clad steel ground rod at each corner. The ground resistance must be determined from the soil conductivity, local conditions, and embedded earth electrodes in the foundations. Based upon the dimensions of the facility, the ground resistance must normally not exceed 25 ohms earth transition resistance. In the event that the measured ground resistance exceeds this value, additional ground rods must be provided. Testing must not be done within 48 hours of rain.

Connect the Grounding System to the main grounding (potential equalization) bus bar located in the building Main Electrical room. The grounding system must be connected to all metal surfaces of sanitary, ventilation, heating systems, and electrical systems, to include the metallic cable support systems.

Supply cable system (from Power Source) must be TN-S with division of neutral conductor into neutral conductor and grounding conductor. Facility cable system must be TN-S.

Provide a ground bus bar in Main electrical Room located in the Generator room.

5.4.4 GENERATOR SYSTEM

Provide a back-up power system utilizing the existing 45kVA, 150kVA, and 250kVA generators that are currently in operation. The 45kVA generator must support back up capacity for all emergency and safety systems. The 150kVA generator must provide back-up capacity connected via ATS to all critical areas as defined in section 5.2. The existing two 250kVA generator must provide back-up capacity for utility power supply. Provide main generator system a Manual Transfer Switch (MTS) connection. The intent is to provide an optional generator system for the Hospital during outages and potential fuel shortages. If an outage happens the hospital can maintain all existing generators as needed to keep operations going. If during that time, the hospital experience a fuel shortage, this set-up will provide them the option to power only the critical and emergency generators.

The generator and MTS connected to the Main Distribution Panel (MDP) must be rated as the service entrance for the facility. For facilities with ground fault current protection a four-pole MTS is required.

5.5 INTERIOR POWER SYSTEMS

5.5.1 GENERAL REQUIREMENTS MAIN DISTRIBUTION PANEL (MDP)

The switchgear and installed equipment parts must be sized to meet circuit load and the relevant short circuit requirements. This includes the requirements of applicable UFC and Host Nation. Short-circuit currents must be limited as specified in Host Nation Requirements (HNR).

Nominal voltage: 400/230 V power Frequency: 50 Hz System: TNS (L1, L2, L3, N and E)

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Molded Case Circuit Breakers (MCCBs) must be used generally within the Low Voltage (LV) distribution system. Circuit breakers must be of one common manufacturer.

Breakers must comply with Host Nation requirements and the following:

a. Sized for a minimum of 125% of the demand load they serve for future growth.

b. Expandable and must have a minimum spare space of approximately 25%.

c. Ammeters must be provided with 15 min average maximum indication.

d. Provide voltmeters.

e. Distribution boards must be provided with a suitable earth bar and neutral bar, with adequate provision for the connection of a circuit protective conductor for each outgoing way.

f. Fully rated for the available fault…