St. Stephen Air Compressors 100% Specs.pdf
PDF 223 KB Posted
- Attached to
- 2 Air Compressors and One Air Dryer
- Solicitation number
- W9127826A0005
About this file
This is a Statement of Work (SOW) for the procurement of air compression equipment for the U.S. Army Corps of Engineers St Stephen Project in South Carolina.
The South Atlantic Division operates fourteen hydropower plants across Alabama, Georgia, South Carolina, and Virginia. This contract requires the supply and delivery of two 30-horsepower (HP), three-phase, 480-volt rotary screw air compressors rated for 125 PSI at 130 cubic feet per minute (CFM), and one 480-volt desiccant air dryer rated for 250 CFM at 100 PSI. The compressors must operate in a lead-lag-standby configuration with alternating control to balance runtime. The desiccant dryer must maintain a dew point of -40 degrees Fahrenheit at 100 psig. Each compressor requires an induction synchronous motor with continuous service factor of 1.0, equipped with variable frequency drive (VFD) controls and air-cooled heat exchangers. The system must include comprehensive monitoring instruments (pressure gauges, temperature gauges, thermometers), safety controls for discharge air temperature, lube oil temperature, lube oil pressure, and motor stator temperature, and a complete control panel conforming to NEMA ICS 6 standards. Acceptance will occur at St Stephen Powerhouse (1275 Rediversion Road, St. Stephen, SC 29479) with delivery windows Monday through Thursday, 8:00 AM to 11:00 AM and 1:00 PM to 4:00 PM. Contractor responsibilities include seismic restraint design calculations and detail drawings for both compressors and the desiccant dryer per ASCE 7 standards, factory testing in accordance with ASME PTC 9, submittal of comprehensive operation and maintenance manuals, training for approximately 14 government personnel (two four-hour sessions), and complete protection of painted components during shipment.
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| W9127826A0005 Government Response to Questions.pdf | ||
| SOW.docx | DOCX document |
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Text version
ST Stephen Air Compressor STSAIRCOMP23
St Stephen Air Compressor Supply
STATEMENT OF WORK
This document describes the specifications for the task order for procurement of Air Compressors for the U.S. Army Corps of Engineers St Stephen Project.
1.0 GENERAL
South Atlantic Division (SAD) operates and maintains fourteen
(14) hydropower plants in the AL, GA, SC, and VA regions. This is a procurement for St Stephens Powerhouse.
2.0 SCOPE
This request for quote is for the procurement of two air compressors and one 480V Dessicant Air Dryer For specific quantities and values see Delivery below.
3.0 Supply and Delivery
The Contractor shall supply and delivery the equipment as entailed by this supply Performance Work Statement, as ordered by the Contracting Officer during the contract period. The Contractor shall be capable of supporting the delivery of completed line items as specified bellow:
4.0 ACCEPTANCE
St Stephen Powerhouse Attn: Arthur Brown 1275 Rediversion Road St. Stephen, SC 29479.
843-567-5709
The delivery times would be Monday-Thursday: 0800-1100, 1300-1600
SECTION 01 11 10
SUMMARY OF WORK
PART 1 GENERAL
1.1 DESCRIPTION OF WORK
This section covers the technical specifications for the supply of two Air Compressors, a desiccant Air Dryer for St Stephen powerhouse. This section is a general summary of the required equipment and is not all-inclusive. The work described within these specifications shall include, but not necessarily be limited to the following:
a. Supply two 30HP, 3 Phase, 480V Air Compressors, rated for 125PSI at
130CFM
b. Supply 3 Phase, 480V Desiccant Air Dryer, rated for 250CFM at 100
PSI.
1.2 CHANGES IN SPECIFICATIONS AND DRAWINGS
The Government reserves the right to revise or amend the specifications and/or drawings prior to the date set for opening bids. Copies of such amendments will be furnished to all prospective bidders. If the revisions and amendments require material changes in quantities or prices bid, or both, the date set for bid opening may be extended to enable bidders the opportunity to revise their bids. The amendment will include an announcement of the new date for opening bids.
1.3 DEFINITIONS
a. Wherever in the specifications, or upon the drawings, the words "directed", "required", "ordered", "designated", "prescribed", or words of like import are used, it shall be understood that the "direction", "requirement", "order", "designation", or "prescription" of the Contracting Officer is intended, and similarly the words "approved", "acceptable", "satisfactory", or words of like import shall mean "approved by" or "acceptable to" or "satisfactory to" the Contracting Officer unless otherwise expressly stated.
b. Where "as shown", "as indicated", "as detailed", or words of like import are used, it shall be understood that the reference is made to the drawings accompanying this contract unless stated otherwise. The word "supplied" as used herein shall be understood to mean "delivered per this contract". (FAR 52.236.21(b) and (c)).
c. Wherever in these specifications or upon the drawings, the words "Contracting Officer" (CO) or "Contracting Officer's Representative" (COR) are used, it shall be understood to also mean "Government" unless otherwise expressly stated.
d. Wherever in these specifications the acronym "GQAR" is used, it shall be understood to mean "Government Quality Assurance
Representative", unless otherwise expressly stated.
e. Wherever in these specifications the word "weekend(s)" is used, it shall be understood to mean "Friday, Saturday, Sunday, and Federal Holidays", unless otherwise expressly stated.
f. Whenever in these specifications the word "Project" is used, it shall be understood to mean St Stephen Powerhouse.
PART 2 - PRODUCTS - NOT USED
PART 3 - PRODUCTS - NOT USED
-- End of Section --
SECTION 01 33 00 Page 1
PART 1 GENERAL
1.1 DEFINITIONS
SECTION 01 33 00
SUBMITTAL PROCEDURES
08/18, CHG 4: 02/21
1.1.1 Submittal Descriptions (SD)
Submittal requirements are specified in the technical sections. Examples and descriptions of submittals identified by the Submittal Description (SD) numbers and titles follow:
SD-01 Preconstruction Submittals
Preconstruction Submittals include schedules and a tabular list of locations, features, and other pertinent information regarding products, materials, equipment, or components to be used in the work.
List Of Proposed Subcontractors
Submittal Register
Schedule Of Prices Or Earned Value Report
SD-02 Shop Drawings
Drawings, diagrams and schedules specifically prepared to illustrate some portion of the work.
Diagrams and instructions from a manufacturer or fabricator for use in producing the product and as aids to the Contractor for integrating the product or system into the project.
Drawings prepared by or for the Contractor to show how multiple systems and interdisciplinary work will be coordinated.
SD-03 Product Data
Catalog cuts, illustrations, schedules, diagrams, performance charts, instructions and brochures illustrating size, physical appearance and other characteristics of materials, systems or equipment for some portion of the work.
Samples of warranty language when the contract requires extended product warranties.
SD-05 Design Data
SECTION 01 33 00 Page 2
Design calculations, mix designs, analyses or other data pertaining to a part of work.
SD-06 Test Reports
Report signed by authorized official of testing laboratory that a material, product or system identical to the material, product or system to be supplied has been tested in accord with specified requirements. Unless specified in another section, testing must have been within three years of date of contract award for the project.
Report that includes findings of a test required to be performed on an actual portion of the work or prototype prepared for the project before shipment to job site.
SD-07 Certificates
Statements printed on the manufacturer's letterhead and signed by responsible officials of manufacturer of product, system or material attesting that the product, system, or material meets specification requirements. Must be dated after award of project contract and clearly name the project.
Document required of Contractor, or of a manufacturer, supplier, Subcontractor through Contractor. The document purpose is to further promote the orderly progression of a portion of the work by documenting procedures, acceptability of methods, or personnel qualifications.
Text of posted operating instructions
SD-10 Operation and Maintenance Data
Data supplied by the manufacturer, or the system provider, including manufacturer's help and product line documentation, necessary to maintain and install equipment, for operating and maintenance use by facility personnel.
Data required by operating and maintenance personnel for the safe and efficient operation, maintenance and repair of the item.
Data incorporated in an operations and maintenance manual or control system.
1.1.2 Approving Authority
Office or designated person authorized to approve the submittal.
1.2 SUBMITTALS
Government approval is required for submittals with a "G" classification.
Submittals not having a "G" classification are for Contractor Quality Control approval. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.
Submit the following in accordance with Section 01 33 00 SUBMITTAL
PROCEDURES:
SECTION 01 33 00 Page 3
1.3 SUBMITTAL CLASSIFICATION
1.3.1 Government Approved (G)
Within the terms of the Contract Clause SPECIFICATIONS AND DRAWINGS FOR CONSTRUCTION, submittals are considered to be "shop drawings."
1.3.2 For Information Only
Submittals not requiring Government approval will be for information only. Within the terms of the Contract Clause SPECIFICATIONS AND DRAWINGS FOR CONSTRUCTION, they are not considered to be "shop drawings."
1.4 PREPARATION
1.4.1 Transmittal Form
1.4.2 Submittal Format
1.4.2.1 Format of SD-01 Preconstruction Submittals
When the submittal includes a document that is to be used in the project, or is to become part of the project record, other than as a submittal, do not apply the Contractor's approval stamp to the document itself, but to a separate sheet accompanying the document.
Provide data in the unit of measure used in the contract documents.
1.4.2.2 Format for SD-02 Shop Drawings
Provide shop drawings not less than 8 1/2 by 11 inches nor more than 30 by 42 inches, except for full-size patterns or templates. Prepare drawings to accurate size, with scale indicated, unless another form is required.
Ensure drawings are suitable for reproduction and of a quality to produce clear, distinct lines and letters, with dark lines on a white background.
a. Include the nameplate data, size, and capacity on drawings. Also include applicable federal, military, industry, and technical society publication references.
b. Dimension drawings, except diagrams and schematic drawings. Prepare drawings demonstrating interface with other trades to scale. Use the same unit of measure for shop drawings as indicated on the contract drawings. Identify materials and products for work shown.
1.4.2.2.1 Drawing Identification
Include on each drawing the drawing title, number, date, and revision numbers and dates, in addition to information required in paragraph
IDENTIFYING SUBMITTALS.
Number drawings in a logical sequence. Each drawing is to bear the number of the submittal in a uniform location next to the title block. Place the Government contract number in the margin, immediately below the title
SECTION 01 33 00 Page 4 block, for each drawing.
Reserve a blank space, no smaller than 2 by 2 inches on the right-hand side of each sheet for the Government disposition stamp.
1.4.2.3 Format of SD-03 Product Data
Present product data submittals for each section. Include a table of contents, listing the page and catalog item numbers for product data.
Indicate, by prominent notation, each product that is being submitted;
indicate the specification section number and paragraph number to which it pertains.
1.4.2.3.1 Product Information
Supplement product data with material prepared for the project to satisfy the submittal requirements where product data does not exist. Identify this material as developed specifically for the project, with information and format as required for submission of SD-07 Certificates.
Supply product data in units used in the Contract documents. Where product data are included in preprinted catalogs with another unit, submit the dimensions in contract document units, on a separate sheet.
1.4.2.3.2 Standards
Where equipment or materials are specified to conform to industry or technical-society reference standards of such organizations as the American National Standards Institute (ANSI), ASTM International (ASTM), National Electrical Manufacturer's Association (NEMA), Underwriters Laboratories (UL), or Association of Edison Illuminating Companies (AEIC), submit proof of such compliance. The label or listing by the specified organization will be acceptable evidence of compliance. In lieu of the label or listing, submit a certificate from an independent testing organization, competent to perform testing, and approved by the Contracting Officer. State on the certificate that the item has been tested in accordance with the specified organization's test methods and that the item complies with the specified organization's reference standard.
1.4.2.3.3 Data Submission
Collect required data submittals for each specific material, product, unit of work, or system into a single submittal that is marked for choices, options, and portions applicable to the submittal. Mark each copy of the product data identically. Partial submittals will not be accepted for expedition of the supply effort.
Submit the manufacturer's installation and maintenance instructions.
1.4.2.4 Format of SD-05 Design Data
Supply design data and certificates on 8 1/2 by 11 inch paper.
1.4.2.5 Format of SD-06 Test Reports
By prominent notation, indicate each report in the submittal. Indicate the specification number and paragraph number to which each report
SECTION 01 33 00 Page 5 pertains.
1.4.2.6 Format of SD-07 Certificates
Supply design data and certificates on 8 1/2 by 11 inch paper.
1.4.2.7 Format of SD-08 Manufacturer's Instructions
Present manufacturer's instructions submittals for each section. Include the manufacturer's name, trade name, place of manufacture, and catalog model or number on product data. Also include applicable federal, military, industry, and technical-society publication references. If supplemental information is needed to clarify the manufacturer's data, submit it as specified for SD-07 Certificates.
Submit the manufacturer's instructions before supply of equipment.
1.4.2.7.1 Standards
Where equipment or materials are specified to conform to industry or technical-society reference standards of such organizations as the American National Standards Institute (ANSI), ASTM International (ASTM), National Electrical Manufacturer's Association (NEMA), Underwriters Laboratories (UL), or Association of Edison Illuminating Companies (AEIC), submit proof of such compliance. The label or listing by the specified organization will be acceptable evidence of compliance. In lieu of the label or listing, submit a certificate from an independent testing organization, competent to perform testing, and approved by the Contracting Officer. State on the certificate that the item has been tested in accordance with the specified organization's test methods and that the item complies with the specified organization's reference standard.
1.4.2.8 Format of SD-09 Manufacturer's Field Reports
By prominent notation, indicate each report in the submittal. Indicate the specification number and paragraph number to which each report pertains.
1.4.2.9 Format of SD-10 Operation and Maintenance Data (O&M)
Comply with the requirements specified in Section 22 15 14.00 26 paragraph
1.5 OPERATION AND MAINTENANCE MANUAL for O&M Data format.
1.4.2.10 Format of SD-11 Closeout Submittals
When the submittal includes a document that is to be used in the project or is to become part of the project record, other than as a submittal, do not apply the Contractor's approval stamp to the document itself, but to a separate sheet accompanying the document.
Supply data in the unit of measure used in the contract documents.
1.4.3 Source Drawings for Shop Drawings
1.4.3.1 Source Drawings
The entire set of source drawing files (DWG) will not be provided to the Contractor. Request the specific Drawing Number for the preparation of
SECTION 01 33 00 Page 6 shop drawings. Only those drawings requested to prepare shop drawings will be provided. These drawings are provided only after award.
1.4.3.2 Terms and Conditions
Data contained on these electronic files must not be used for any purpose other than as a convenience in the preparation of construction data for the referenced project. Any other use or reuse is at the sole risk of the Contractor and without liability or legal exposure to the Government. The Contractor must make no claim, and waives to the fullest extent permitted by law any claim or cause of action of any nature against the Government, its agents, or its subconsultants that may arise out of or in connection with the use of these electronic files. The Contractor must, to the fullest extent permitted by law, indemnify and hold the Government harmless against all damages, liabilities, or costs, including reasonable attorney's fees and defense costs, arising out of or resulting from the use of these electronic files.
These electronic source drawing files are not construction documents.
Differences may exist between the source drawing files and the corresponding construction documents. The Government makes no representation regarding the accuracy or completeness of the electronic source drawing files, nor does it make representation to the compatibility of these files with the Contractor hardware or software. The Contractor is responsible for determining if any conflict exists. In the event that a conflict arises between the signed and sealed construction documents prepared by the Government and the furnished source drawing files, the signed and sealed construction documents govern. Use of these source drawing files does not relieve the Contractor of the duty to fully comply with the contract documents, including and without limitation the need to check, confirm and coordinate the work of all contractors for the project. If the Contractor uses, duplicates or modifies these electronic source drawing files for use in producing construction data related to this contract, remove all previous indication of ownership (seals, logos, signatures, initials and dates).
1.5 QUANTITY OF SUBMITTALS
1.5.1 Electronic Copies
Submit each submittal in PDF format. Coordinate with Contracting Officer for delivery method.
1.5.2 Hard Copies
Submit hard copies in addition to electronic submissions when designated.
Coordinate with Contracting Officer for delivery method.
1.5.3 Number of SD-02 Shop Drawing Copies
Submit electronic and two hard copies of submittals of shop drawings requiring review and approval by a QC organization. Submit electronic and three hard copies of shop drawings requiring review and approval by the Contracting Officer.
1.5.4 Number of SD-03 Product Data Copies
Submit in compliance with quantity requirements specified for shop drawings.
SECTION 01 33 00 Page 7
1.5.5 Number of SD-06 Test Report Copies
Submit in compliance with quantity and quality requirements specified for shop drawings, other than field test results that will be submitted with QC reports.
1.6 INFORMATION ONLY SUBMITTALS
Submittals without a "G" designation must be certified by the QC manager and submitted to the Contracting Officer for information-only. Provide information-only submittals to the Contracting Officer a minimum of 14 calendar days prior to the Preparatory Meeting for the associated Definable Feature of Work (DFOW). Approval of the Contracting Officer is not required on information only submittals. The Contracting Officer will mark "receipt acknowledged" on submittals for information and will return only the transmittal cover sheet to the Contractor. Normally, submittals for information only will not be returned. However, the Government reserves the right to return unsatisfactory submittals and require the Contractor to resubmit any item found not to comply with the contract.
This does not relieve the Contractor from the obligation to furnish material conforming to the plans and specifications; will not prevent the Contracting Officer from requiring removal and replacement of nonconforming material incorporated in the work; and does not relieve the Contractor of the requirement to furnish samples for testing by the Government laboratory or for check testing by the Government in those instances where the technical specifications so prescribe.
1.6.1 Action Codes
1.6.2 Delivery of Copies
Submit an updated electronic copy of the submittal register to the Contracting Officer with each invoice request. Provide an updated Submittal Register monthly regardless of whether an invoice is submitted.
1.7 VARIATIONS
Variations from contract requirements require Contracting Officer approval
SECTION 01 33 00 Page 8 pursuant to contract Clause FAR 52.236-21 Specifications and Drawings for Construction, and will be considered where advantageous to the Government.
1.7.1 Considering Variations
Discussion of variations with the Contracting Officer before submission of a variation submittal will help ensure that functional and quality requirements are met and minimize rejections and resubmittals. For variations that include design changes or some material or product substitutions, the Government may require an evaluation and analysis by a licensed professional engineer hired by the contractor.
Specifically point out variations from contract requirements in a variation submittal. Failure to point out variations may cause the Government to require rejection and removal of such work at no additional cost to the Government.
1.7.2 Proposing Variations
When proposing variation, deliver a submittal, clearly marked as a "VARIATION" to the Contracting Officer, with documentation illustrating the nature and features of the variation including any necessary technical submittals and why the variation is desirable and beneficial to Government. If lower cost is a benefit, also include an estimate of the cost savings. In addition to documentation required for variation, include the submittals required for the item. Clearly mark the proposed variation in all documentation.
Specifically point out variations from contract requirements in a variation submittal. Failure to point out variations may cause the Government to require rejection and removal of such work at no additional cost to the Government.
1.7.3 Warranting that Variations are Compatible
When delivering a variation for approval, the Contractor warrants that this contract has been reviewed to establish that the variation, if incorporated, will be compatible with other elements of work.
1.7.4 Review Schedule Extension
In addition to the normal submittal review period, a period of 14 days will be allowed for the Government to consider submittals with variations.
1.8 SCHEDULING
Schedule and submit concurrently product data and shop drawings covering component items forming a system or items that are interrelated. Submit pertinent certifications at the same time. No delay damages or time extensions will be allowed for time lost in late submittals. Allow an additional 14 days for review and approval of submittals for refrigeration and HVAC control systems.
a. Coordinate scheduling, sequencing, preparing, and processing of submittals with performance of work so that work will not be delayed by submittal processing. The Contractor is responsible for additional
SECTION 01 33 00 Page 9 time required for Government reviews resulting from required resubmittals. The review period for each resubmittal is the same as for the initial submittal.
b. Submittals required by the contract documents are listed on the submittal register. If a submittal is listed in the submittal register but does not pertain to the contract work, the Contractor is to include the submittal in the register and annotate it "N/A" with a brief explanation. Approval by the Contracting Officer does not relieve the Contractor of supplying submittals required by the contract documents but that have been omitted from the register or marked "N/A."
c. Resubmit the submittal register and annotate it monthly with actual submission and approval dates. When all items on the register have been fully approved, no further resubmittal is required.
Contracting Officer review will be completed within 30 days after the date of submission.
1.9 GOVERNMENT APPROVING AUTHORITY
When the approving authority is the Contracting Officer, the Government will:
a. Note the date on which the submittal was received.
b. Review submittals for approval within the scheduling period specified and only for conformance with project design concepts and compliance with contract documents.
c. Identify returned submittals with one of the actions defined in paragraph REVIEW NOTATIONS and with comments and markings appropriate for the action indicated.
Upon completion of review of submittals requiring Government approval, stamp and date submittals. 1 hard copy of the submittal will be retained by the Contracting Officer and an electronic and 2 hard copies of the submittal will be returned to the Contractor.
1.9.1 Review Notations
Submittals will be returned to the Contractor with the following notations:
a. Submittals marked "approved" or "accepted" authorize proceeding with the work covered.
b. Submittals marked "approved as noted" or "approved, except as noted, resubmittal not required," authorize proceeding with the work covered provided that the Contractor takes no exception to the corrections.
c. Submittals marked "not approved," "disapproved," or "revise and resubmit" indicate incomplete submittal or noncompliance with the contract requirements or design concept. Resubmit with appropriate changes. Do not proceed with work for this item until the resubmittal is approved.
d. Submittals marked "not reviewed" indicate that the submittal has been
SECTION 01 33 00 Page 10 previously reviewed and approved, is not required, does not have evidence of being reviewed and approved by Contractor, or is not complete. A submittal marked "not reviewed" will be returned with an explanation of the reason it is not reviewed. Resubmit submittals returned for lack of review by Contractor or for being incomplete, with appropriate action, coordination, or change.
e. Submittals marked "receipt acknowledged" indicate that submittals have been received by the Government. This applies only to "information-only submittals" as previously defined.
1.10 DISAPPROVED SUBMITTALS
Make corrections required by the Contracting Officer. If the Contractor considers any correction or notation on the returned submittals to constitute a change to the contract drawings or specifications, give notice to the Contracting Officer as required under the FAR clause titled CHANGES. The Contractor is responsible for the dimensions and design of connection details and the construction of work. Failure to point out variations may cause the Government to require rejection and removal of such work at the Contractor's expense.
If changes are necessary to submittals, make such revisions and resubmit in accordance with the procedures above. No item of work requiring a submittal change is to be accomplished until the changed submittals are approved.
1.11 APPROVED SUBMITTALS
The Contracting Officer's approval of submittals is not to be construed as a complete check, and indicates only that
Approval or acceptance by the Government for a submittal does not relieve the Contractor of the responsibility for meeting the contract requirements or for any error that may exist, because under the Quality Control (QC) requirements of this contract, the Contractor is responsible for ensuring information contained with in each submittal accurately conforms with the requirements of the contract documents.
After submittals have been approved or accepted by the Contracting Officer, no resubmittal for the purpose of substituting materials or equipment will be considered unless accompanied by an explanation of why a substitution is necessary.
PART 2 PRODUCTS
Not Used
PART 3 EXECUTION
Not Used
SECTION 13 48 00.00 26 Page
SECTION 13 48 00.00 26
SEISMIC RESTRAINT FOR MECHANICAL AND ELECTRICAL EQUIPMENT
PART 1 GENERAL
1.1 SCOPE OF WORK
The work covered in this section consists of furnishing all labor, equipment and materials to select, design, and provide seismic restraints for new systems and equipment provided as part of work performed for St Stephen Powerhouse.
1.2 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)
ACI 318 (2014; Errata 1-2 2014; Errata 3-5 2015;
Errata 6 2016; Errata 7-9 2017) Building Code Requirements for Structural Concrete (ACI 318-14) and Commentary (ACI 318R-14)
AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)
ASCE 7 (2022) Minimum Design Loads for Buildings and Other Structures
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 693 (2018) Recommended Practice for Seismic Design of Substations
1.3 SUBMITTALS
Government approval is required for submittals with a "G" designation;
submittals not having a "G" designation are for information only or as otherwise designated. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00
SUBMITTAL PROCEDURES:
1.4 DESIGN OF SEISMIC RESTRAINT
1.4.1 General Requirements
Apply the requirements for seismic protection measures described in this section to the equipment and systems below. Accomplish resistance to lateral forces induced by earthquakes without consideration of friction resulting from gravity loads. Existing concrete strength is taken as f'c = 3,000 pounds per square inch (psi).
Submit detail drawings as per paragraphs "EQUIPMENT" and "SYSTEMS"a minimum of 90 calendar days prior to installation. Submit together with Structural Design Calculations for Seismic Restraints.
For detail drawings include catalog cuts, templates, anchorage system including mechanical specifications of anchor bolts, erection and installation details for the items listed. Provide submittals complete in detail; indicate thickness, type, grade, class of metal, and dimensions;
and show construction details, anchorage, and installation. Stamp all drawings with the Professional Engineer (PE) stamp who performs and stamps the calculations required above.
Submit structural design calculations performed by a qualified civil or structural engineer who is presently a registered professional engineers (PE). The calculations verify the capability of the seismic restraints and of structural members to which seismic restraint are attached for carrying the seismic design loads. The design includes seismic anchorage design and details. Provide all calculations stamped and signed by a PE.
Items and systems requiring seismic restraint are explicitly listed in paragraph EQUIPMENT. Identify and submit any additional items or systems which are to be provided as part of this contract which are required to be seismically restrained per ASCE 7 and meet the applicable requirements per this specification.
1.4.2 Code Requirements for Equipment Restraint
Complete seismic design for all equipment restraint in accordance with Chapter 13, "Seismic Design Requirements for Nonstructural Components," of ASCE 7 with the seismic design force computed as per Section 13 "Seismic Demands on Nonstructural Components" at minimum. For electrical equipment restraint, design in accordance with the applicable provisions in IEEE 693, or Section 13.3 of ASCE 7 whichever produces the more adverse seismic effects. For ASCE 7, use a spectral acceleration SDS = 0.61, IP = 1.50, and z/h=1. For IEEE 693, use a seismic qualification level of high.
1.4.3 Requirements for Equipment Certification
Design, construct, and assemble all equipment listed in paragraph "Equipment", to be provided under this contract to withstand the seismic forces specified in paragraph "Code Requirements for Equipment Restraint." Provide Seismic Equipment Certification supported by testing or analysis stating the seismic capability of the equipment.
1.5 EQUIPMENT
Develop the structural design calculations for seismic anchors and detail drawings for the following new equipment provided under this contract in accordance with the requirements of this specification:
(a) Air Compressors
(b) Desiccant Dryer
1.6 DEFINITIONS
Sway Brace. An assembly intended to be attached to piping, conduit, bus, or raceways to resist horizontal earthquake loads.
Four-Way Brace. A sway brace intended to resist differential movement in all horizontal directions.
Lateral Brace. A sway brace intended to resist differential movement perpendicular to the axis of piping, conduit, bus, or raceways.
Longitudinal Brace. A sway brace intended to resist differential movement parallel to the axis of piping, conduit, bus, or raceways.
Undercut anchor. Undercut concrete anchors are bearing-type anchors designed to be installed in cured concrete in a hole with a conical undercut near its blind end.
Expansive anchor. Expansive concrete anchors are designed to be installed in cured concrete in a straight hole. Anchorage relies on an torque-controlled expansion wedge and the friction developed between the drilled hole and the expanded wedge.
Adhesive anchor. Adhesive concrete anchors are designed to be installed in cured concrete in a straight hole drilled with a roto-impact drill, consistent with the manufacturers printed installation instructions and the applicable ESR report. Anchorage relies on a chemical adhesive bond to the threaded rod and to the concrete.
Monolith Expansion Joint. Expansion /contraction joint separating two adjacent, structurally independent monoliths.
PART 2 PRODUCTS
NOT USED
PART 3 EXECUTION
3.1 CONCRETE ANCHORS
Submit manufacturer's product data within 90 calendar days prior to installation. Manufacturer's product data includes but is not limited to detail drawings showing dimensions, material data, allowable loads and detailed installation instructions, ICC ES Evaluation Services Reports (ESR),and anchor test data in accordance applicable ESR.
3.1.1 Limitations on Allowable Fasteners to Concrete
Do not utilize powder actuated fasteners, screw or coil type anchors to secure equipment or systems to the powerhouse. Do not use expansive drop-in threaded insert type anchors to suspend equipment or systems from the powerhouse. Do not use expansion anchors to resist vibratory loads due to rotating machinery. Do not use chemically bonded adhesive anchors to resist pull-out in overhead and wall installations if the adhesive is manufactured with temperature sensitive epoxies and the location is susceptible to effects of a building fire or if the adhesive is unsuited to static tension load application. For chemically bonded adhesive anchors for use in low temperature or wet/under-water applications, provide product data indicating suitability for use and pass on-site installation test(s) under anticipated environmental conditions. For all post-installed anchors furnished, provide anchors suitable for use in cracked concrete and under seismic loading.
3.1.2 General Requirements for Fasteners to Concrete
Provide anchors at least 1/2 inch in diameter unless otherwise indicated in the plans or this specification section. Provide chemically bonded adhesive anchors with an embedded depth equal to at least 12 times nominal diameter of the bolt. Provide expansive or undercut anchors with a minimum embedded depth of at least 4 inches. Compute anchor capacity as per Chapter 17 of ACI 318 and reduce the anchor capacity to account for the effect of spacing between anchor bolts and the distance between anchor bolt and the nearest concrete edge. Provide anchor test data in accordance with ICC ES Evaluation Services Reports (ESR) for each type and class of concrete anchor verifying the suitability of an anchor for the intended application.
3.1.3 Floor Mounted Equipment
Anchor floor mounted equipment to concrete that is reinforced and integrally connected to the reinforced concrete structure. Intermittent tension developed due to laterally applied seismic force of 1000 pounds (lbs) or less may be resisted with expansive concrete anchors capable of resisting dynamic loading in cracked and un-cracked concrete unless otherwise indicated on the drawings. Resist intermittent tension developed due to laterally applied seismic force greater than 1000 lbs with undercut concrete anchors. Epoxy anchors are permitted in applications where concrete foundation pads are not integrally connected to the reinforced concrete structure. Embedment is only considered to occur in structural concrete. Embedment solely in architectural floating slabs and house-keeping foundation pads not integrally connected to the reinforced concrete structure will not be accepted. For anchorage of channel foundations or for housekeeping pads not integrally connected to structural slab, full anchor embedment is required to be in the structural slab beneath the equipment foundation. For anchors installed in an environment subject to water intrusion and freeze thaw cycles, provide epoxy adhesive anchors or alternately use undercut anchors and seal with a flexible sealant reccommended by the anchor manufacturer and as indicated on the drawings and approved by the CO. St Stephen's floor slab at EL 57 includes a 2" thick architectural topper slab. Seismic anchor designs must accomodate this offset.
SECTION 22 15 14.00 26 Page 1
SECTION 22 15 14.00 26
GENERAL SERVICE COMPRESSED-AIR SYSTEMS, LOW PRESSURE
1.1 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
ASME A112.18.1/CSA B125.1 (2018) Plumbing Supply Fittings
ASME B40.100 (2013) Pressure Gauges and Gauge Attachments
ASME PTC 9 (1970; R 1997) Displacement Compressors, Vacuum Pumps and Blowers (for historical reference only)
ASTM INTERNATIONAL (ASTM)
ASTM A193/A193M (2020) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications
ASTM A194/A194M (2020a) Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both
ASTM B209 (2014) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
ASTM C534/C534M (2020a) Standard Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form
ASTM C553 (2013; R 2019) Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications
ASTM E84 (2020) Standard Test Method for Surface Burning Characteristics of Building Materials
ASTM F104 (2011; R 2020) Standard Classification System for Nonmetallic Gasket Materials
ASTM F436/F436M (2019) Standard Specification for Hardened Steel Washers Inch and Metric Dimensions
SECTION 22 15 14.00 26 Page 2
COMPRESSED AIR AND GAS INSTITUTE (CAGI)
CAGI B19.1 (2010) Safety Standard for Compressor Systems
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)
IEEE 112 (2017) Standard Test Procedure for Polyphase Induction Motors and Generators
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA ICS 2 (2000; R 2020) Industrial Control and Systems Controllers, Contactors, and Overload Relays Rated 600 V
NEMA ICS 6 (1993; R 2016) Industrial Control and Systems: Enclosures
NEMA MG 1 (2021) Motors and Generators
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 255 (2006; Errata 2006) Standard Method of Test of Surface Burning Characteristics of Building Materials
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-A-3316 (1987; Rev C; Am 2 1990) Adhesives, Fire-Resistant, Thermal Insulation
MIL-T-19646 (1990; Rev A; Notice 1 2021) Thermometer, Gas Actuated, Remote Reading
U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)
29 CFR 1910.219 Mechanical Power Transmission Apparatus
1.2 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00
SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
Air Compressor System
SD-03 Product Data
Air Compressors; G, HDC
SECTION 22 15 14.00 26 Page 3
Accessories; G, HDC
Desiccant Dryers; G, HDC
Air-Cooled Heat Exchangers; G, HDC
Air Compressor Control Schematic; G, HDC
Electric Motors; G, HDC
Control Panel; G, HDC
Miscellaneous Materials; G, HDC
SD-06 Test Reports
Factory Test; G, HDC
Sound Level Tests
Factory Test Plan; G, HDC
SD-07 Certificates
Factory Test Certification
Manufacturer Experience
SD-10 Operation and Maintenance Data
Operation and Maintenance Manuals; G, HDC
Refrigerated Air Dryers; G, HDC
Operation Manual; G, HDC
1.3 GENERAL REQUIREMENTS
1.3.1 Product Data
Submit product data for each system and component. Submittal is to include, but not be limited to the Manufacturer's Catalog Data for each new or modified piece of equipment proposed for use in each system.
Indicate the name of the manufacturer of each item of equipment, with data highlighted to indicate model, size, options, etc. proposed for installation. In addition, provide a complete equipment list, which includes equipment description, model number and quantity; submit together with each System Design. Clearly annotate any non-applicable data.
1.3.2 NAMEPLATES
a. For each major component of this specification, list the manufacturer's name, type or style, model or serial number, and rating number on a plate secured to the equipment. Install nameplates in prominent locations with nonferrous screws, nonferrous bolts, or permanent adhesive. Minimum size of nameplates must be 1 by 2.5 inches.
Lettering must be the normal block style with a minimum 0.25 inch
SECTION 22 15 14.00 26 Page 4 height. Accurately align all lettering on nameplates. Key the nameplates to a chart and schedule for each system. Furnish two copies of each chart and schedule. Each nameplate description must identify its function. As applicable, provide, at a minimum, nameplates for:
(1) Air Compressors
(2) Operation Controls and Instrumentation
(3) Monitor and Safety Controls
(4) Intercoolers
(5) Aftercoolers
(6) Desiccant Air Dryers
(7) Electric motors
b. Where the following equipment is provided as a standard component by the air compressor manufacturer, the nameplate information may be provided in the maintenance manual in lieu of nameplates.
(1) Heaters
(2) Fans
1.3.3 Personnel Safety Devices
Exposed moving parts, parts that produce high operating temperatures, parts which may be electrically energized, and parts that may be a hazard to operating personnel during normal operation must be insulated, fully enclosed, guarded, or fitted with other types of safety devices. Install safety devices such that proper operation of the equipment is not impaired.
1.3.4 Conformance to Codes and Standards
Where equipment is specified to conform to requirements of any code or standard such as UL, the design, fabrication and installation is to conform to the code.
1.3.5 Detailed Drawings
Submit detailed Air Compressor System drawings for major equipment and systems including but not limited to the following:
a. Base-mounted enclosures, complete with base and attachments including air dryers, oil water separators and recommended clearances for maintenance and operation.
b. Complete cooling system.
c. The monitor and safety control system, including detailed wire schematics.
d. Panel layouts.
e. Rotary screw air compressor set lifting points and rigging
SECTION 22 15 14.00 26 Page 5 instructions.
1.4 QUALITY CONTROL
1.4.1 Manufacturer Experience
a. Provide statements showing that each component manufacturer has a minimum of three years experience in the manufacturing, assembly and sale of desiccant air driers for commercial and industrial use. Submit statements within 90 days of NTP and before designs are submitted for approval.
b. Provide a statement within 90 days of NTP and before designs are submitted for approval showing that the rotary screw air compressor manufacturer/assembler has a minimum of three years experience in the manufacturing, assembly and sale of stationary rotary screw air compressor sets for commercial and industrial use.
1.4.2 Factory Test Certification
Submit a statement that the air compressor factory is equipped to perform all required factory tests. Submit in accordance with paragraph entitled "Factory Tests."
1.4.3 Training Material
Submit a detailed training program syllabus for training government personnel, including instructional materials at least three weeks prior to delivery of products.
1.5 OPERATION AND MAINTENANCE MANUAL
Submit the operation and maintenance data including Air compressors, REFRIGERATED AIR DRYERS and any system related components. Receive approval prior to shipment from factory to Government destination. Include color photos, screen shots and factory inspection and test results in final submittal.
1.5.1 Operation Manual
The manufacturers standard operation manual must include:
a. Step-by-step procedures for system startup, operation, and shutdown.
b. Drawings, diagrams, and single-line schematics to illustrate and define the electrical, mechanical, and hydraulic systems with their controls, alarms, and safety systems.
1.5.2 Operation and Maintenance Manuals
For the manufacturers standard maintenance manual, include at minimum:
a. Procedures for each routine maintenance item; Procedures for troubleshooting; and Factory-service, take-down overhaul, and repair service manuals, with parts lists.
b. The manufacturer's recommended maintenance schedule.
SECTION 22 15 14.00 26 Page 6
c. A component list which includes the manufacturer's name, address, type or style, model or serial number, and catalog number for the major components listed in paragraph GENERAL REQUIREMENTS.
d. A list of spare parts for each piece of equipment and a complete list of materials and supplies needed for operation.
1.6 SAFETY
Construct all components of the unit in accordance with the requirements of OSHA 29 CFR 1910.219. Requirements include insulation and jacketing with manufacturer standard covering or aluminum sheet of all surfaces at 125 degrees F and higher within a height of 7 feet from floor level, and use of electrical safety devices. For thermal insulation, furnished by equipment manufacturer, conform to ASTM C553, Type I (flexible resilient), Class B-5 (up to 400 degrees F), 2 pcf nominal. Cement insulation to surface with MIL-A-3316, Class 2, adhesive and fasten with 16-gauge wire bands at maximum 16 inches on center spacing. Cover insulation with ASTM B209 sheet aluminum jacket. However, insulation is not required for hot piping inside sound enclosure.
1.6.1 Temperature Restriction
Compressors or other equipment are not to discharge compressed air to the piping systems above 125 degrees F unless approved by the Contracting Officer. Provide aftercoolers or other devices to comply with the temperature restriction.
1.6.2 Rotating Equipment
Fully guard couplings, motor shafts, gears and other exposed rotating or rapidly moving parts in accordance with OSHA 29 CFR 1910.219. Supply rigid and suitably secured guard parts readily removable without disassembling guarded unit.
1.7 EQUIPMENT ARRANGEMENT
Arrange equipment such that the control panel is located on the opposite side of the equipment from the air piping connections. Include a removable top cover for the enclosure.
1.7.1 Air Compressor System
Include wiring diagrams of the air compressor with all accessories and a separate pneumatic schematic to include, at a minimum, local plumbing to connections with service air piping, lead/lag control panel and drains.
The minimum acceptable scale is 1/4 inch to one foot.
PART 2 PRODUCTS
2.1 SYSTEM DESCRIPTION
Supply two (2) rotary screw style air compressors with accompanying operating curves that indicate each of the air compressors are sufficient for the continuous capacity demand of 130 CFM each at the pressure in the supply header of approximately 125 psi.
Supply lead-lag alternation control between both compressors as needed to sustain similar run times for each compressor. The two compressors must
SECTION 22 15 14.00 26 Page 7 operate in lead-lag-standby configuration by manually reassigning which compressor performs each role on a monthly basis.
Supply one (1) desiccant style air dryer sized to meet the output of both air compressors.
The phrase "screwed ends" is synonomous with NPT threaded ends.
2.2 EQUIPMENT
2.2.1 Air Compressors
Supply two (2) rotary screw air compressors complete with appurtenances.
Government will use air compressors for supplying station service air.
Ensure that each compressor conforms to CAGI B19.1. Ensure that each compressor capacity is as required for service and provide continuous control air when operating on a 1/3-on 2/3-off cycle. Supply an oil-level sight indicator on each compressor. Each compressor must deliver at least 130 SCFM at 125 PSI. Each compressor must be powered by an electrical 30 HP, 480 V, three phase motor equipped with VFD controls. Equip each compressor with Air-Cooled Heat Exchangers. Enclose each compressor in a top-opening enclosure and ensure it is capable of operating in an ambient temperature range of -15 to 110 degrees Fahrenheit. Ensure enclosure has 1 inch NPT outlet port and an overall footprint no larger than 30 inches by 60 inches. Submit the compressors and related accessories product data for approval.
Supply equipment and performance data submittal for compressors and appurtenances showing conformance with applicable codes and standards listed within these specifications.
2.2.2 Desiccant Dryers
Supply one (1) continuous-duty, dual tower, regenerative, heated desiccant air dryer, rated for 250 CFM that maintains the air in the system with a dew point low enough to prevent condensation at -40 degrees F at 100 psig main pressure.
The desiccant dryer must have a purge valve and muffler for each tower intake on the wet side. At the wet air intake there must also be a relief valve installed. The desiccant dryer must come with shuttle type valves on the wet and dry side to allow for regeneration of one tower while the other is in operation. Supply a pressure gauge for the discharge side of the towers along with a purge adjustment valve. Supply a three valve bypass system for the dryer so that air from the wet tank can discharge directly into the air supply header. Supply a coalescing filter assembly for the air in the dryer bypass matching the pre-filter used for the desiccant dryer. The dryer must be powered by a 480 V, three phase electrical source.
2.2.3 Electric Motors
2.2.3.1 Main Electric Drive Motor
The main drive motor for each compressor must be an induction synchronous motor, 30 horsepower maximum, with a continuous service factor of 1.0.
Size the motor so that the name plate hp rating is not exceeded under the entire range of operating conditions specified. Efficiency and losses must be determined in accordance with IEEE 112. Unless otherwise specified horizontal polyphase squirrel cage motors rated between one to
SECTION 22 15 14.00 26 Page 8
125 horsepower must be tested by dynamometer Method B as described in Section 6.4 of IEEE 112.
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