12444123Q0130 Specifications - Bartow Bunkhouse Heating.pdf

BARTOW BUNKHOUSE ELECTRIC HEATING AND COOLING

LIST OF TECHNICAL SPECIFICAITONS

SECTION NUMBER SECTION NAME PAGE

011000 Summary 2 013000 Administrative Requirements 3 016000 Product Requirements 5 017000 Execution and Closeout Requirements 7 237413 Packaged, Outdoor, Central-Station Air-Handling Units 11 017419 Construction Waste Management and Disposal 13 312000 Earthwork 15 262060 Electrical 21 017100 Weed and Disease Prevention 36

3229000 Seeding and Mulching 38

SECTION 011000 - SUMMARY

PART 1 - GENERAL

1.1 PROJECT INFORMATION

A. Project Identification: Bartow Bunkhouse Electric Heat and Cooling

1. Project Location: 7409 Staunton Parkersburg Turnpike, Bartow, WV 24920

B. Owner: USDA Forest Service, Monongahela Nationa Forest

1. Contracting Officer’s Representative (COR): Stephen Quattrone stephen.quattrone@usda.gov

1.2 WORK COVERED BY CONTRACT DOCUMENTS

A. See Statement of Work.

1.3 WORK RESTRICTIONS

A. Contractor's Use of Premises: During construction, Contractor will have full use of buildings indicated. Contractor's use of premises is limited only by Owner's right to perform work or employ other contractors on portions of Project, and as follows:

1. Owner will occupy premises during construction. Perform construction only during normal working hours 8 AM to 5 PM Monday thru Friday, other than holidays, unless otherwise agreed to in advance by the COR. Clean up work areas and return to usable condition at the end of each work period.

2. Driveways, Walkways, and Entrances: Keep driveways, loading areas, and entrances serving premises clear and available to Owner, Owner's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials.

B. Coordination with occupants: Notification to residents must occur a minimum of 1 calendar week prior to onsite activities. Coordinate this notification with the COR.

C. On-Site Work Hours: Limit work in the existing building to normal business working hours of 8 a.m. to 5 p.m., Monday through Friday, unless otherwise approved by the COR.

D. Nonsmoking Building: Smoking is not permitted within the building or within 25 feet of entrances, operable windows, or outdoor-air intakes.

E. The contractor may use the restroom, water, and electricity that is available on site when Forest Service employees are present.

END OF SECTION 011000

SECTION 013000 - ADMINISTRATIVE REQUIREMENTS

PART 1 - GENERAL

1.1 PROJECT MANAGEMENT AND COORDINATION

A. Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work.

1.2 SUBMITTAL ADMINISTRATIVE REQUIREMENTS

A. Electronic Submittals: Identify and incorporate information in each electronic submittal file as follows:

1. Assemble complete submittal package into a single indexed file incorporating submittal requirements of a single Specification Section and transmittal form with links enabling navigation to each item.

2. Name file with unique identifier, including project identifier, Specification Section number, and revision identifier.

3. Provide means for insertion to permanently record Contractor's review and approval markings and action taken by Architect.

B. Identify options requiring selection by COR.

C. Identify deviations from the Contract Documents on submittals.

D. Contractor's Construction Schedule Submittal Procedure:

1. Submit required submittals in the following format:

a. PDF electronic file.

2. Contractor's Construction Schedule: Initial schedule, of size required to display entire schedule for entire construction period.

a. Submit a working electronic copy of schedule, using software indicated, and labeled to comply with requirements for submittals. Include type of schedule (initial or updated) and date on label.

PART 2 - PRODUCTS

2.1 SUBMITTAL PROCEDURES

A. General Submittal Procedure Requirements: Prepare and submit submittals required by individual Specification Sections.

1. Submit electronic submittals via email as PDF electronic files.

a. COR will return annotated file. Annotate and retain one copy of file as an electronic Project record document file.

2.2 ACTION SUBMITTALS

A. Submit three paper copies of each submittal unless otherwise indicated.

B. Product Data: Mark each copy to show applicable products and options. Include the following:

1. Manufacturer's written recommendations, product specifications, and installation instructions.

2. Wiring diagrams showing factory-installed wiring.

3. Printed performance curves and operational range diagrams.

4. Testing by recognized testing agency.

5. Compliance with specified standards and requirements.

PART 3 - EXECUTION

3.1 SUBMITTAL REVIEW

A. Review each submittal and check for coordination with other Work of the Contract and for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to COR.

B. COR will review each action submittal, make marks to indicate corrections or modifications required, will stamp each submittal with an action stamp, and will mark stamp appropriately to indicate action.

C. Submittals not required by the Contract Documents may not be reviewed and may be discarded.

END OF SECTION 013000

SECTION 016000 - PRODUCT REQUIREMENTS

1.1 SECTION REQUIREMENTS

A. The term "product" includes the terms "material," "equipment," "system," and terms of similar intent.

B. Comparable Product Requests: Submit request for consideration of each comparable product.

Identify product or fabrication or installation method to be replaced.

1. Show compliance with requirements for comparable product requests.

2. COR will review the proposed product and notify Contractor of its acceptance or rejection.

C. Basis-of-Design Product Specification Submittal: Show compliance with requirements.

D. Compatibility of Options: If Contractor is given option of selecting between two or more products, select product compatible with products previously selected.

E. Deliver, store, and handle products using means and methods that will prevent damage, deterioration, and loss, including theft. Comply with manufacturer's written instructions.

1. Schedule delivery to minimize long-term storage at Project site and to prevent overcrowding of construction spaces.

2. Deliver products to Project site in manufacturer's original sealed container or packaging, complete with labels and instructions for handling, storing, unpacking, protecting, and installing.

3. Inspect products on delivery to ensure compliance with the Contract Documents and to ensure that products are undamaged and properly protected.

4. Store materials in a manner that will not endanger Project structure.

5. Store products that are subject to damage by the elements, under cover in a weathertight enclosure above ground, with ventilation adequate to prevent condensation.

F. Warranties specified in other Sections shall be in addition to, and run concurrent with, other warranties required by the Contract Documents. Manufacturer's disclaimers and limitations on product warranties do not relieve Contractor of obligations under requirements of the Contract Documents.

PART 2 - PRODUCTS

2.1 PRODUCT SELECTION PROCEDURES

A. Provide products that comply with the Contract Documents, are undamaged, and, unless otherwise indicated, are new at the time of installation.

1. Provide products complete with accessories, trim, finish, and other devices and components needed for a complete installation and the intended use and effect.

2. Where products are accompanied by the term "as selected," Architect will make selection.

3. Descriptive, performance, and reference standard requirements in the Specifications establish salient characteristics of products.

B. Where the following headings are used to list products or manufacturers, the Contractor's options for product selection are as follows:

1. Products:

a. Where requirements include "one of the following," provide one of the products listed that complies with requirements.

b. Where requirements do not include "one of the following," provide one of the products listed that complies with requirements or a comparable product.

2. Manufacturers:

a. Where requirements include "one of the following," provide a product that complies with requirements by one of the listed manufacturers.

b. Where requirements do not include "one of the following," provide a product that complies with requirements by one of the listed manufacturers or another manufacturer.

3. Basis-of-Design Product: Provide the product named, or indicated on the Drawings, or a comparable product by one of the listed manufacturers.

2.2 COMPARABLE PRODUCTS

A. COR will consider Contractor's request for comparable product when the following conditions are satisfied:

1. Evidence that the proposed product does not require revisions to the Contract Documents, that it is consistent with the Contract Documents and will produce the indicated results, and that it is compatible with other portions of the Work.

2. Detailed comparison of significant qualities of proposed product with those named in the Specifications.

3. List of similar installations for completed projects, if requested.

4. Samples, if requested.

PART 3 - EXECUTION (Not Used)

END OF SECTION 016000

SECTION 017000 - EXECUTION AND CLOSEOUT REQUIREMENTS

1.1 EXECUTION REQUIREMENTS

A. Cutting and Patching:

1. Visual Elements: Do not cut and patch construction in a manner that results in visual evidence of cutting and patching. Do not cut and patch exposed construction in a manner that would, in Architect's opinion, reduce the building's aesthetic qualities.

B. Manufacturer's Installation Instructions: Obtain and maintain on-site manufacturer's written recommendations and instructions for installation of products and equipment.

1.2 CLOSEOUT SUBMITTALS

A. Contractor's List of Incomplete Items: Initial submittal at Substantial Completion.

B. Certified List of Incomplete Items: Final submittal at Final Completion.

C. Operation and Maintenance Data: Submit three copies of owner’s manual and installation manual.

D. PDF Electronic File: Assemble manual into a composite electronically indexed file. Submit on digital media.

1.3 FINAL COMPLETION PROCEDURES

A. Submittals Prior to Final Completion: Before requesting inspection for determining final completion, complete the following:

1. Submit a final Application for Payment.

B. Submit a written request for final inspection for acceptance. On receipt of request, COR will either proceed with inspection or notify Contractor of unfulfilled requirements. COR will prepare final Certificate for Payment after inspection or will advise Contractor of items that must be completed or corrected before certificate will be issued.

1. Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

PART 2 - PRODUCTS

2.1 MATERIALS

A. In-Place Materials: Use materials for patching identical to in-place materials. For exposed surfaces, use materials that visually match in-place adjacent surfaces to the fullest extent possible.

B. Cleaning Agents: Use cleaning materials and agents recommended by manufacturer or fabricator of the surface to be cleaned. Do not use cleaning agents that are potentially hazardous to health or property or that might damage finished surfaces.

1. Use cleaning products that comply with Green Seal's GS-37, or if GS-37 is not applicable, use products that comply with the California Code of Regulations maximum allowable VOC levels.

2.2 OPERATION AND MAINTENANCE DOCUMENTATION

A. Directory: Prepare a single, comprehensive directory of emergency, operation, and maintenance data and materials, listing items and their location to facilitate ready access to desired information.

B. Organization: Unless otherwise indicated, organize manual into separate sections for each system and subsystem, and separate sections for each piece of equipment not part of a system.

C. Organize data into three-ring binders with identification on front and spine of each binder, and envelopes for folded drawings. Include the following:

1. Manufacturer's operation and maintenance documentation.

2. Maintenance and service schedules.

3. Maintenance service contracts. Include name and telephone number of service agent.

4. Emergency instructions.

5. Spare parts list and local sources of maintenance materials.

6. Wiring diagrams.

7. Copies of warranties. Include procedures to follow and required notifications for warranty claims

PART 3 - EXECUTION

3.1 EXAMINATION AND PREPARATION

A. Existing Conditions: The existence and location of underground and other utilities and construction indicated as existing are not guaranteed. Before beginning sitework, investigate and verify the existence and location of underground utilities, mechanical and electrical systems, and other construction affecting the Work by calling MISS UTILITIES.

B. Before proceeding with each component of the Work, examine substrates, areas, and conditions, with Installer or Applicator present where indicated, for compliance with requirements for installation tolerances and other conditions affecting performance.

1. Verify compatibility with and suitability of substrates.

2. Examine roughing-in for mechanical and electrical systems.

3. Examine walls, floors, and roofs for suitable conditions.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

D. Take field measurements as required to fit the Work properly. Where portions of the Work are indicated to fit to other construction, verify dimensions of other construction by field measurements before fabrication.

E. Verify space requirements and dimensions of items shown diagrammatically on Drawings.

F. Surface and Substrate Preparation: Comply with manufacturer's written recommendations for preparation of substrates to receive subsequent work.

3.2 INSTALLATION

A. Locate the Work and components of the Work accurately, in correct alignment and elevation, as indicated.

1. Make vertical work plumb and make horizontal work level.

2. Conceal pipes, ducts, and wiring in finished areas unless otherwise indicated.

B. Comply with manufacturer's written instructions and recommendations.

C. Conduct construction operations so no part of the Work is subjected to damaging operations or loading in excess of that expected during normal conditions of occupancy.

D. Use products, cleaners, and installation materials that are not considered hazardous.

3.3 CLEANING

A. Clean Project site and work areas daily, including common areas. Dispose of materials lawfully.

1. Remove liquid spills promptly.

2. Where dust would impair proper execution of the Work, broom-clean or vacuum the entire work area, as appropriate.

3. Remove debris from concealed spaces before enclosing the space.

B. Complete the following cleaning operations before requesting inspection for certification of Substantial Completion:

1. Clean Project site, yard, and grounds, in areas disturbed by construction activities. Sweep paved areas; remove stains, spills, and foreign deposits.

2. Sweep paved areas broom clean. Remove spills, stains, and other foreign deposits.

3. Remove labels that are not permanent.

4. Clean exposed finishes to a dust-free condition, free of stains, films, and foreign substances. Sweep concrete floors broom clean.

5. Vacuum carpeted surfaces and wax resilient flooring.

6. Wipe surfaces of mechanical and electrical equipment. Remove excess lubrication and foreign substances.

3.4 OPERATION AND MAINTENANCE MANUAL PREPARATION

A. Operation and Maintenance Manuals: Assemble a complete set of operation and maintenance data indicating operation and maintenance of each system, subsystem, and piece of equipment not part of a system.

B. Manufacturers' Data: Where manuals contain manufacturers' standard printed data, include only sheets pertinent to product or component installed. Mark each sheet to identify each product or component incorporated into the Work. If data include more than one item in a tabular format, identify each item using appropriate references from the Contract Documents. Identify data applicable to the Work and delete references to information not applicable.

1. Prepare supplementary text if manufacturers' standard printed data are unavailable and where the information is necessary for proper operation and maintenance of equipment or systems.

C. Drawings: Prepare drawings supplementing manufacturers' printed data to illustrate the relationship of component parts of equipment and systems and to illustrate control sequence and flow diagrams.

3.5 DEMONSTRATION AND TRAINING

A. Engage qualified installers to instruct Owner's personnel to adjust, operate, and maintain systems, subsystems, and equipment not part of a system. Include a detailed review of the following:

1. Include instruction for basis of system design and operational requirements, review of documentation, emergency procedures, operations, adjustments, troubleshooting, maintenance, and repairs.

END OF SECTION 017000

SECTION 237413 - PACKAGED, OUTDOOR, CENTRAL-STATION AIR-HANDLING UNITS

1.1 SECTION REQUIREMENTS

A. Submittals:

1. Product Data: Include manufacturer's technical data for each remote terminal unit (RTU), including rated capacities, dimensions, required clearances, characteristics, furnished specialties, and accessories.

2. Documentation indicating that equipment and refrigerants comply.

3. Documentation indicating that units comply with ASHRAE 62.1, Section 5 - "Systems and

Equipment."

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Energy Efficiency Compliance:

1. Energy-Efficiency Ratio (EER): Equal to or greater than 12.5.

2. SEER: Equal to or greater than 14.5.

B. Warranties: Provide standard manufacturer's written warranty, without monetary limitation, signed by manufacturer agreeing to promptly repair or replace products that fail in materials or workmanship for the period of 10 years.

2.2 PACKAGED, OUTDOOR, CENTRAL-STATION AIR-HANDLING UNITS

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

1. AAON.

2. Carrier Corporation; a unit of United Technologies Corp.

3. Lennox Industries, Inc.; Lennox International.

4. Trane.

2.3 COMPONENTS

A. Casing: Formed and reinforced insulated panels, fabricated to allow removal for access to internal parts and components, with joints between sections sealed.

B. Refrigeration Specialties:

1. Refrigerant Charge: R-410A.

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2. Expansion valve with replaceable thermostatic element.

3. Refrigerant filter/dryer.

4. Manual-reset high-pressure safety switch.

5. Automatic-reset low-pressure safety switch.

C. Electrical Power Connection: Provide for single connection of power to unit with unit-mounted disconnect switch accessible from outside unit and control-circuit transformer with built-in overcurrent protection.

D. Controls:

1. Programmable thermostat with seven-day clock and minimum four programmable periods per day.

2. Remote Panel: Power, alarm, heat/cool, and filter status.

3. Defrost Control for Condenser Coil: Pressure differential switch to initiate defrost sequence.

4. Duplex, 115-V, ground-fault-interrupter outlet with 20-A overcurrent protection. Include transformer if required. Outlet shall be energized even if the unit main disconnect is open.

5. Low-ambient kit using staged condenser fans for operation down to 35 deg F.

6. Filter differential pressure switch with sensor tubing on either side of filter. Set for final filter pressure loss.

7. Concentric diffuser with white louvers and polished aluminum return grilles, insulated diffuser box with mounting flanges, and interior transition.

2.4 CAPACITIES AND CHARACTERISTICS

A. See attached product submittals for 3 ton heat pumps and VS fan coils 230 single phase equivalent to but not limited to.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Connect units to electrical power, control wiring systems, and to ground.

END OF SECTION 237413

SECTION 017419 CONSTRUCTION WASTE MANAGEMENT AND DISPOSAL

1.1 SUMMARY

A. This Section includes the loading, handling, hauling, and placing of excess excavation material, unsuitable excavation material, clearing and grubbing debris, and construction and demolition debris, including all materials, labor, and equipment necessary for cleaning and debris removal.

1.2 DISPOSAL REQUIREMENTS

A. Conduct cleaning and disposal operations to comply with local codes, ordinances, and regulations.

B. A waste disposal site at the project site will be designated by the COR for excess excavated materials.

C. All demolition materials, garbage, and other refuse generated shall be removed from the project site and legally disposed of in an approved landfill.

D. The Contractor shall be responsible for all costs and fees associated with disposal of waste materials and debris.

1.3 MEASUREMENT AND PAYMENT

A. There will be no separate measurement or payment for work in this Section.

Construction waste material disposal is considered incidental to other items of work shown in the Schedule of Items.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 DURING CONSTRUCTION

A. Execute periodic cleaning to keep the work site and adjacent properties free from accumulations of waste materials and trash.

B. Provide on-site containers for the collection of waste materials and trash.

3.2 FINAL CLEANING

A. At the completion of the project, or prior thereto if so directed by the Contracting Officer, the Contractor shall be responsible for complete cleaning of site which his work effects.

3.3 RESTORATION OF DAMAGED PROPERTY

A. To the extent that any trails, vegetation, utilities, or other items are damaged or displaced by the Contractor's operations, these shall be restored to their original or better condition prior to Final Inspection. This shall include both on-site and offsite items.

3.4 WASTE MATERIAL

A. All excavated material not used in the backfilling of footings or trenches, or other excess material resulting from the excavation operations shall be hauled to the designated waste disposal area.

B. All unsuitable excavated material, oversize boulders, stumps, and other clearing and grubbing debris shall be removed from the project site and legally disposed of off Government property in an approved landfill.

C. All demolition materials, garbage, and other refuse generated shall be removed from the project site and legally disposed of off Government property in an approved landfill.

D. The contractor is responsible for all costs and permits associated with landfill disposal.

E. The Government is not responsible for waste material upon its departure from the project site.

END OF SECTION 017419

SECTION 312000 EARTHWORK

1.1 SUMMARY

A. This Section includes the following:

1. Excavating and backfilling for utility trenches.

2. Excavating and backfilling trenches for buried mechanical and electrical utilities and pits for buried utility structures.

B. Related Sections include the following:

1. Section 329000 “Seeding and Mulching.”

1.2 DEFINITIONS

A. Backfill: Soil materials used to fill an excavation.

B. Borrow or Select Borrow: Satisfactory soil material used for embankment, backfill, or fill construction that is either imported from off-site or excavated from designated locations at the site.

C. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated.

1. Additional Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions as directed by COR. Additional excavation and replacement material will be paid for according to Contract provisions for changes in the Work.

2. Unauthorized Excavation: Excavation below subgrade elevations or beyond indicated lines and dimensions without direction of the COR. Unauthorized excavation, as well as remedial work directed by COR, shall be without additional compensation.

3. Unclassified Excavation: Excavation to subgrade elevation and to lines and dimensions indicated regardless of the character of surface and subsurface conditions encountered, including rock, soil materials, and obstructions.

D. Fill: Soil materials used to raise existing grades.

E. Rock: Rock material in beds, ledges, unstratified masses, and conglomerate deposits and boulders of rock material 3/4 cu. yd. or more in volume that when tested by an independent geotechnical testing agency, according to ASTM D 1586, exceeds a standard penetration resistance of 100 blows/2 inches.

F. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

G. Subgrade: Surface or elevation remaining after completing excavation, or top surface of a fill or backfill immediately below subbase, aggregate base, drainage fill, initial or subsequent backfill, or topsoil materials.

H. Utilities include on-site underground pipes, conduits, ducts, and cables, as well as underground services within building.

1.3 submittals

A. Contractor shall submit to the COR for approval source of aggregates and backfill materials and certified sieve analysis. Materials from Government Sources are exempt from this requirement.

1.4 existing underground utilities

A. The Contractor shall contact local diggers hotline, for buried cable location identification, 72 hours before doing any excavating on site. The Contractor shall locate and mark all buried electric lines prior to excavation.

B. Repair at Contractor expense underground utilities damaged by the Contractor.

1.5 MEASUREMENT AND PAYMENT

A. There will be no separate measurement or payment for work in this Section. Earthwork is considered incidental to other items of work shown in the Schedule of Items.

PART 2 - PRODUCTS

2.1 BACKFILL MATERIALS, GENERAL

A. Excavated material may be processed and used for backfill. If excavated material is not sufficient to meet requirements, Contractor shall import needed material.

B. Satisfactory Soils: ASTM D 2487 soil classification groups GW, GP, GM, SW, SP, and SM, or a combination of these group symbols; free of rock or gravel larger than 3 inches (75 mm) in any dimension, debris, waste frozen materials, vegetation, and other deleterious matter.

C. Unsatisfactory Soils: ASTM D 2487 soil classification groups GC, SC, ML, MH, CL, CH, OL, OH, and PT, or a combination of these group symbols.

1. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction.

D. Backfill and Fill: Satisfactory soil materials.

1. Remove rocks over 8 inches in maximum dimension, ice or frozen earth, muck, debris, and earth with high void content.

2. Remove rocks over 3 inches in maximum dimension for backfill placed within 12 inches of foundation.

2.2 ENGINEERED FILL

A. Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; with at least 90 percent passing a 1 1/2 inch sieve and not more than 12 percent passing a No. 200 sieve.

PART 3 - EXECUTION

3.1 preparation

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout and other hazards created by earthwork operations. Repair all construction related damage to the satisfaction of the Government.

B. Protect subgrades and foundation soils against freezing temperatures or frost and moisture. Provide protective insulating materials, water diversion measures, excavation covers and water removal as necessary. See geotechnical report for additional information.

C. Provide erosion-control measures to prevent erosion or displacement of soils and discharge of soil-bearing water runoff or airborne dust to adjacent properties and walkways.

3.2 dewatering

A. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

B. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation.

1. Reroute surface water runoff away from excavated areas. Do not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches.

2. Install a dewatering system to keep subgrades dry and convey ground water away from excavations. Maintain until dewatering is no longer required.

3.3 explosives

A. Do not use explosives.

3.4 EXCAVATION SUPPORT AND PROTECTION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards that could develop during excavation.

B. Design, furnish, install, monitor, and maintain excavation support and protection system capable of supporting excavation sidewalls and resisting soil and hydrostatic pressures and superimposed and construction loads.

C. The contractor shall meet State General Safety Orders and the provisions of the Occupational Safety and Health Administration (OSHA) pertaining to excavation support and protection, including 29 CFR 1926 Subpart P.

D. Walls of excavations 5 feet or more in depth shall be supported by shoring and bracing methods or the walls shall be sloped at one and a half to one.

E. Remove excavation support and protection systems when construction has progressed sufficiently to support excavation and bear soil and hydrostatic pressures. Remove in stages to avoid disturbing underlying soils or damaging structures, pavements, facilities, and utilities.

3.5 EXCAVATION, GENERAL

A. Unclassified Excavation: Excavation to subgrade elevations regardless of the character of surface and subsurface conditions encountered, including rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions.

1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials.

B. Topsoil shall be removed from the area to be excavated and from the area where excavated material will be piled, prior to excavation. Topsoil shall be stored as specified below.

C. Maintain the excavations to guard against and prevent injury to employees and the public. The contractor shall meet State General Safety Orders and the provisions of the Occupational Safety and Health Administration (OSHA) pertaining to excavation support and protection, including 29 CFR 1926 Subpart P. The cost of shoring and bracing is included in the cost for trench excavation.

D. Excavations left open at the end of the working day shall be fenced to protect the public.

3.6 UNAUTHORIZED EXCAVATION

A. Fill unauthorized excavation under foundations or wall footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Lean concrete fill may be used when approved by COR.

1. Fill unauthorized excavations under other construction or utility pipe as directed by

COR.

3.7 STORAGE OF SOIL MATERIALS

A. Stockpile, borrow materials and satisfactory excavated soil materials. Stockpile soil materials without intermixing. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust.

1. Stockpile soil materials away from edge of excavations. Do not store within drip line of remaining trees.

B. Topsoil shall be kept separate from trench-excavated material by either stockpiling or by windrowing on the opposite side of the trench from which the trench excavated material will be placed. Topsoil will be reused after backfilling for grading around the building and over other disturbed areas as directed by the COR.

3.8 Structural BACKFILL

A. Place and compact backfill in excavations promptly, but not before completing the following:

1. Removing trash and debris.

2. Removing temporary shoring and bracing, and sheeting.

B. Place and compact fills and backfills adjacent to structures in such a manner as to prevent wedging action or eccentric lodging upon or against the structures.

C. Place backfill in horizontal layers not more than 12 inches thick with proper moisture content for the required degree of compaction. Flooding or puddling is not allowed.

Compact each layer as specified.

D. Heavy equipment shall not be operated within four feet of any structure.

E. Provide for anticipated settlement and shrinkage of the backfill and for the finished grades required.

3.9 FILL

A. Preparation: Remove vegetation, topsoil, debris, unsatisfactory soil materials, obstructions, and deleterious materials from ground surface before placing fills.

B. Plow, scarify, bench, or break up sloped surfaces steeper than 1 vertical to 4 horizontal so fill material will bond with existing material.

C. Place and compact fill material in layers to required elevations as follows:

1. Under grass and planted areas, use ¾” aggregate.

3.10 MOISTURE CONTROL

A. Uniformly moisten or aerate subgrade and each subsequent fill or backfill layer before compaction to within 2 percent of optimum moisture content.

1. Do not place backfill or fill material on surfaces that are muddy, frozen, or contain frost or ice.

2. Remove and replace, or scarify and air-dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight.

3.11 COMPACTION OF BACKFILLS AND FILLS

A. The minimum degree of compaction required shall be a percent of the maximum laboratory density obtained by the standard proctor test AASHTO T99 or ASTM D698.

The in-place field density shall be determined by AASHTTO T238 or ASTM D2922.

The minimum compaction requirements are:

1. Under lawn or unpaved areas, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill material at 85 percent.

3.12 GRADING

A. General: Uniformly grade areas to a smooth surface, free from irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated.

1. Provide a smooth transition between adjacent existing grades and new grades.

2. Cut out soft spots, fill low spots, and trim high spots to comply with required surface tolerances.

B. Site Grading: Slope grades to direct water away from buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerances:

1. Lawn or Unpaved Areas: Plus or minus 1 inch.

3.13 PROTECTION

A. Protecting Graded Areas: Protect newly graded areas from traffic, freezing and erosion.

Keep free of trash and debris.

B. Repair and reestablish grades to specify tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions.

1. Scarify or remove and replace soil material to depth as directed by COR, reshape and recompact.

C. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing.

1. Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to the greatest extent possible.

3.14 SURFACE FINISH

A. In unpaved areas all surfaces shall be restored to the original ground line or elevations shown on the drawings and left in a uniform and neat condition. Any stockpiled topsoil shall be smoothly distributed over disturbed areas to elevations shown on the drawings.

3.15 DISPOSAL OF SURPLUS AND WASTE MATERIALS

A. Disposal: Waste soil material shall be disposed of in accordance with Section 017419 “Construction Waste Management and Disposal”.

END OF SECTION 312000

SECTION 262060 ELECTRICAL SYSTEM

PART 4 - GENERAL

4.1 SUMMARY

A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.

B. Related Sections include the following:

1. Section 262010 “Basic Electrical Requirements.”

2. Section 262028 “Codes and Standards.”

3. Section 262030 “Test and Demonstration of Complete Electrical System.”

4.2 description of work

A. Extent of electrical work is indicated by the drawings and schedules.

B. Types of electrical work specified in this section include the following:

1. Raceways including:

a) Electrical metallic tubing (EMT).

b) Flexible metal conduit.

c) Rigid Steel Conduit (RSC).

d) Liquid-tight flexible metal conduit.

e) Rigid metal conduit.

f) Rigid nonmetallic conduit.

2. Electrical connections, including connections:

a) To panels

b) Interior equipment:

c) Outlet boxes and covers.

d) Cabinets, junction boxes, and pull boxes.

e) Wires and cables.

f) Splices and termination components.

g) Device plates.

h) Switches.

i) Receptacles.

j) Panelboards.

3. Accessories:

a) Grounding rods.

b) Service equipment.

4.3 SUBMITTALS

A. Product Data:

1. Submit manufacturer's technical product data, including specifications and installation instructions, for each type of electrical equipment required. Include data substantiating that materials comply with requirements following the procedures elsewhere in this specification including but not limited to Section 262090.

4.4 QUALITY ASSURANCE

A. Installers Qualifications:

1. Electrical Firm with at least 3 years of successful installation experience on projects with electrical work similar to that required for this project

B. UL Standards:

1. UL Compliance and Labeling:

a) Comply with applicable requirements of U.L. safety standards pertaining to electrical systems. Provide electrical equipment, products, and components which have been UL-listed and labeled.

2. UL Standards

a) Comply with UL Standard 486A, "Wire Connectors and Soldering lugs for Use With

Copper Conductors" including, but not limited to, tightening of electrical connectors to torque values indicated.

b) Comply with applicable requirements of UL Standards Nos.467 and 869 pertaining to electrical grounding and bonding.

3. NEC Compliance

a) Comply with applicable requirements of NEC (NFPA 70) pertaining to construction and installation of electrical systems.

C. ANSI Compliance:

1. Comply with applicable requirements of ANSI/NEMA and ANSI/EIA standards pertaining to products and installation of electrical systems and equipment.

4.5 MEASUREMENT AND PAYMENT

A. No separate measurement or payment will be made for work specified in this section.

All work will be included in other items listed in the Schedule of Items.

PART 5 - PRODUCTS

5.1 METAL CONDUIT AND TUBING

A. General:

1. Provide metal conduit, tubing and fittings of types, grades, sizes and weights (wall thickness) for each service indicated.

2. Where types and grades are not indicated, provide proper selection determined by installer to fulfill wiring requirements, and comply with applicable portions of NEC for raceways.

B. Rigid Steel Conduit (RSC):

1. Provide rigid steel, zinc-coated, threaded type conforming to FS WW-C-581, ANSI C80.1 and UL 6.

2. Provide zinc-coating fused to inside and outside walls.

C. Flexible Metal Conduit:

1. FS EE-C-566 and UL 1. Formed from continuous length of spirally wound, interlocked zinc-coated strip steel.

D. Liquid-Tight Flexible Metal Conduit:

1. Provide liquid-tight flexible metal conduit; construct of single strip, flexible, continuous, interlocked, and double-wrapped steel; galvanized inside and outside;

coat with liquid-tight jacket of flexible polyvinyl chloride (PVC).

E. Rigid Metal Conduit Fittings:

1. Cast malleable iron, galvanized or cadmium plated, conforming to FS W-F-408.

2. Use Type 1 fittings for raintight connections.

3. Use Type 2 fittings for concrete tight connections.

4. Use Type 3 fittings for other miscellaneous connections.

F. Flexible Metal Conduit Fittings:

1. Provide conduit fittings for use with flexible steel conduit of thread less hinged clamp type

a) Straight Terminal Connectors: One piece body, female end with clamp and deep slotted machine screw for securing conduit, and male threaded end provided with locknut.

b) 45º or 90º Terminal Angle Connectors: Two-piece body construction with removable upper section, female end with clamp and deep slotted machine screw for securing conduit, and male threaded end provided with locknut.

G. Liquid-Tight Flexible Metal Conduit Fittings:

1. FS W-F-406, Type 1, Class 3, Style G.

2. Provide cadmium plated, malleable iron fittings with compression type steel ferrule and neoprene gasket sealing rings, with insulated, or noninsulated throat.

H. Electrical Metallic Tubing (EMT):

1. FS WW-C-563, ANSI C80.3 and UL 797.

I. EMT Fittings:

1. FS W-F-408.

2. Use Type 1 fittings for rain-tight connections.

3. Use Type 2 fittings for concrete tight connections.

4. Use Type 3 fittings for miscellaneous connections.

5.2 nonmetallic Conduit

A. General:

1. Provide nonmetallic conduit, ducts and fittings of types, sizes and weights for each service indicated.

2. Where types and grades are not indicated, provide proper selection determined by Installer to fulfill wiring requirements which comply with provisions of NEC for raceways.

B. Electrical Plastic Conduit:

1. Extra Heavy Wall Conduit:

a) Schedule 40 and Schedule 80, UL-rated, construct of polyvinyl chloride compound

C-200 PVC, and UL-listed in accordance with NEC Article 347 for direct burial, or above ground use.

C. PVC Conduit and Tubing Fittings:

1. NEMA TC 3, mate and match to conduit and tubing type material.

D. Conduit and Tubing Accessories:

1. Provide conduit, tubing and duct accessories of types, sizes, and materials, complying with manufacturer's published product information, which mate and match conduit and tubing.

5.3 conduit bodies

A. Provide galvanized cast-metal conduit bodies of types, shapes and sizes as required to fulfill job requirements and NEC requirements.

B. Construct conduit bodies with threaded-conduit-entrance ends, removable covers, either cast or of galvanized steel, and corrosion-resistant screws.

C. Subject to compliance with requirements, manufacturers offering conduit bodies which may be incorporated in the work include, but are not limited to, the following:

1. Appleton Electric, Division of Emerson Electric Co.

2. Arrow-Hart Division; Crouse-Hinds Co.

3. Bell Electric Division, Square D Co.

4. Gould, Inc.

5. Killark Electric Manufacturing Co.

6. O-Z/Gedney Division; General Signal Co.

7. Spring City Electrical Manufacturing Co.

5.4 ELECTRICAL CONNECTION MATERIALS AND COMPONENTS

A. For each electrical connection indicated, provide complete assembly of materials, including but not necessarily limited to, pressure connectors, terminals (lugs), electrical insulating tape, electrical solder, electrical soldering flux, heat-shrinkable insulating tubing, cable ties, Solderless wirenuts, and other items and accessories as needed to complete splices and terminations of types indicated.

5.5 wires, cables and connectors

A. Wires/Cables:

1. Unless otherwise indicated, provide wires/cables (conductors) for electrical connections which match, including sizes and ratings, of wires/cables which are supplying electrical power. Reduced size ground conductors are not allowed unless expressly permitted on the drawings or in the specification.

2. Provide copper conductors with conductivity of not less than 98 percent at 20ºC (68ºF).

3. Pump house conductors shall be copper THWN, THHN, OR XHHW unless otherwise indicated.

4. Branch circuits to toilet buildings and pump house shall be triplex AL direct bury unless otherwise indicated.

5. Wires and cables manufactured more than 12 months prior to date of delivery to the site shall not be used.

B. Connectors and Terminals:

1. Provide electrical connectors and terminals which mate and match, including sizes and ratings, with equipment terminals and are recommended by equipment manufacturer for intended applications.

C. Aluminum Conductors:

1. Aluminum conductors shall be of an aluminum alloy that is listed or labeled by UL as "component aluminum-wire stock (conductor material)."

2. Type EC/1350 aluminum is not acceptable.

D. Bonding Ground Conductors:

1. ASTM B 1, solid bare copper wire for sizes No. 8 AWG and smaller; ASTM B 8, Class B, stranded bare copper wire for sizes No. 6 AWG and larger.

2. Copper braided tape, constructed of 30-gage bare copper wires and properly sized for indicated applications.

3. Flexible flat conductor, 480 strands of 30-gage bare copper wire; 3/4" wide, 9-1/2" long; 48,250 cm. Protect braid with copper bold ends with holes sized for 3/8" diameter bolts.

5.6 splices and termination components

A. UL 486A and UL 486B, as applicable for wire connectors, and UL 510 for insulating tapes.

B. Connectors for wires No. 10 AWG and smaller shall be insulated pressure-type in accordance with UL 486A or UL 486C twist-on splicing connector.

C. Provide solderless terminal lugs on stranded conductors.

D. Electrical Connection Accessories:

1. Provide electrical insulating tape, heat-shrinkable insulating tubing and boots, electrical solder, electrical soldering flux, wirenuts and cable ties as recommended for use by accessories manufacturers for type services indicated.

5.7 outlet boxes and covers

A. UL 514, cadmium- or zinc-coated if of ferrous metal.

5.8 CABINETS, JUNCTION BOXES, AND PULL BOXES (WITH VOLUME GREATER THAN 100

CUBIC INCHES)

A. UL 50, hot-dip zinc-coated if sheet steel.

5.9 Device Plates

A. Provide UL listed, one-piece device plates for outlets and fittings to suit the devices installed.

B. Plates on unfinished walls and on fittings shall be of zinc-coated sheet steel or cast metal having round or beveled edges.

C. The use of sectional type device plates will not be permitted.

D. Plates installed in wet locations shall be gasketed.

5.10 receptacles

A. General:

1. NEMA 5-20R, specification grade, grounding type.

2. Ratings and configurations shall be as indicated.

3. Bodies shall be ivory thermosetting plastic supported by a metal mounting strap.

4. Connect grounding pole to the mounting strap.

B. Weatherproof Receptacles:

1. Provide in a cast metal box with a gasketed, weatherproof, cover plate and a gasketed cap over each receptacle opening. Receptacle cover shall provide weather protection even with a plug inserted into the receptacle body as required by recent UL changes.

2. The cap(s) shall be provided with a spring-hinged flap.

3. Receptacle shall be UL approved for use in "wet locations."

C. Ground Fault Circuit Interrupter Receptacles:

1. UL 943, and shall be duplex type for mounting in a standard outlet box.

2. The device shall be capable of detecting a current leak of 5 milli-amperes.

3. The device shall be NEMA 5-20R.

5.11 Panelboards

A. General:

1. UL 67 and UL 50.

2. Panelboards for use as service disconnecting means shall additionally conform to UL

869.

3. Panelboards shall be circuit breaker equipped unless indicated otherwise.

4. Design shall be such that any individual breaker can be removed without disturbing adjacent units or without loosening or removing supplemental

5. Where "space only" is indicated, make provisions for the future installation of a breaker sized as indicated.

6. All panelboard locks included in the project shall be keyed alike.

7. Directories shall be typed to indicate load served by each circuit and mounted in a holder behind transparent protective covering.

B. Panelboard Buses:

1. Support bus bars on bases independent of the circuit breakers.

2. Main buses and back pans shall be designed so that breakers may be changed without machining, drilling, or tapping.

3. Provide an isolated neutral bus in each panel for connection of circuit neutral conductors.

4. Provide a separate ground bus marked with a green stripe along its front and bonded to the steel cabinet for connecting grounding conductors.

C. Circuit Breakers:

1. Federal Specification WC-375, ambient-compensated, thermal magnetic type with interrupting capacity of 10,000 amperes symmetrical minimum.

2. Breaker terminals shall be UL listed as suitable for the type of conductor provided.

D. Circuit Breaker with Ground-Fault Circuit Interrupter:

1. UL 1053 and NFPA 70.

2. Provide with "push-to-test" button, visible indication of tripped condition, and ability to detect a current imbalance of approximately 5 milli-amperes.

E. Fusible Switches for Panelboards:

1. NEMA KS1, hinged door type.

2. Switches serving as motor disconnect means shall be horsepower rated.

5.12 load Centers

A. General:

1. UL 67 and UL 50.

2. Load centers for use as service disconnecting means shall additionally conform to UL

869.

3. Load centers shall be circuit breaker equipped unless indicated otherwise.

4. Design shall be such that any individual breaker can be removed without disturbing adjacent units or without loosening or removing supplemental insulation supplied as a means of obtaining clearances as required by UL.

5. Where "space only" is indicated, make provisions for the future installation of a breaker sized as indicated.

6. Directories shall be typed to indicate load served by each circuit and mounted in a holder behind transparent protective covering.

B. Load Center Buses:

1. Support bus bars on bases independent of the circuit breakers.

2. Main buses and back pans shall be designed so that breakers may be changed without machining, drilling, or tapping.

3. Provide an isolated neutral bus in each panel for connection of circuit neutral conductors

C. Circuit Breakers:

1. Federal Specification WC-375, ambient-compensated, thermal magnetic type with interrupting capacity of 10,000 amperes symmetrical minimum.

2. Breaker terminals shall be UL listed as suitable for the type of conductor provided

D. Multipole Breakers:

1. Provide common-trip type with a single operating handle.

2. Breaker design shall be such that an overload in one pole automatically causes all poles to open.

3. Maintain phase sequence throughout each panel so that any three adjacent breaker poles are connected to Phases A, B, and C, respectively.

E. Circuit Breaker with Ground-Fault Circuit Interrupter:

1. 1. UL 1053 and NFPA 70.

2. Provide with "push-to-test" button, visible indication of tripped condition, and ability to detect a current imbalance of approximately 5 milli-amperes.

5.13 grounding systems

A. General:

1.…