ATTACHMENT_1_Statement_of_Work.pdf

Spec Title: Escalator Replacement at Hoover Dam Visitor Center Solicitation No. 140R3021B0004

Escalator Replacement

Hoover Dam Visitor Center

Statement of Work

Table of Contents

PART 1 GENERAL

1.1 LOCATION:

1.2 GENERAL DESCRIPTION

1.3 SCHEDULE

1.4 SECURITY / CLEARANCES

1.5 SAFETY

1.6 HAZARDOUS MATERIALS

1.7 PROTECTION OF EXISTING INSTALLATIONS AND STRUCTURES

1.8 SPECIAL WORK PERMIT

1.9 ON-SITE TRAINING

1.10 ACCESS TO THE CONSTRUCTION WORK AREA

PART 2 REPLACEMNT ESCALATORS

2.1 GENERAL DESCRIPTION

2.2 MEASUREMENT AND PAYMENT

2.3 REFERENCES

2.4 DEFINITIONS

2.5 ABBREVIATIONS AND ACRONYMS

2.6 QUALIFICATIONS

2.7 DESIGN AND CONSTRUCTION REQUIREMENTS

2.8 TRAINING

2.9 SPECIAL TOOLS

2.10 SPARE PARTS

2.11 SUBMITTALS

2.12 MAINTENANCE

2.13 RELIABILITY

PART 3 PRODUCTS

3.1 GENERAL DESCRIPTION

3.2 MATERIALS

3.3 FINISHES

3.4 TRUSSES

3.5 DRIP PANS

3.6 BALUSTRADES

3.7 SKIRT PANELS

3.8 LANDING PLATES

3.9 DECK COVERS AND MOLDINGS

3.10 COMB TEETH SEGMENT

3.11 HANDRAILS AND HANDRAIL DRIVE SYSTEMS

3.12 STEPS

3.13 STEP CHAINS

3.14 ROLLERS

3.15 TRACKS

3.16 DRIVING MACHINE AND MOTOR

3.17 LUBRICATION SYSTEM

3.18 BRAKES

3.19 CONTROLLERS AND WIRING

3.20 REMOTE CONTROL INSPECTION STATION

3.21 SAFETY DEVICES AND SWITCHES

3.22 REMOTE MONITORING SYSTEM

3.23 MISCELLANEOUS

PART 4 EXECUTION

4.1 PREPARATION

4.2 INSTALLATION

4.3 TESTING AND QUALITY CONTROL

4.4 CLEANUP

PART 5 SCHEDULE

5.1 Submittal Schedule

Escalator Replacement Hoover Dam Visitor Center

PART 1 GENERAL

1.1 LOCATION:

Hoover Dam is located 8 miles east of Boulder City, Nevada.

1.2 GENERAL DESCRIPTION

A. Furnish all engineering, materials, labor, tools, equipment, transportation, supervision, and inspections to replace the original two escalators, with two heavy duty, in-place, fully functional escalators. The new escalators will be installed in the same location and within the footprint of the current escalators. In addition to the removal and installation, the contractor will provide training on the operation and maintenance of the escalators, select critical spare parts, any unique special tools needed to work on the escalator, and drawings of the installed escalators.

B. Note: Space around the escalators is limited. At night, road closures next to the escalators are possible. Due to high-voltage electrical lines, any overhead crane work with potential to reach into the clear space around the lines will require a line outage.

Line outages will be limited in duration.

C. Escalators shall be identified as “Up” and “Down”. Although both escalators shall be able to travel in either direction, the Up escalator is a normally-up travel located closest to the canyon wall and the Down escalator is a normally-down travel located closest to the river side.

1.3 SCHEDULE

A. The contractor shall submit the following schedules:

1. Escalator Fabrication Schedule;

2. Removal and installation schedule with proposed line outages and road closures;

3. Overall project schedule.

B. Daily Work Hours

1. The Contractor shall perform on-site work during off-hours, which are from 6:00 p.m. to 8:00 a.m., Pacific Standard Time, - Monday thru Friday. The Contractor will coordinate with the Government to work during daytime hours, if current conditions allow.

2. Holiday, overtime, night work or weekend work requests require approval from the Contracting Officer, at least 48 hours advance notice.

C. Top-of-Dam Lane Closures

1. Hoover Dam closes to the public from 9:00 p.m. in the evening to 5:30 a.m. in the morning. During this time, lane closures on top of the dam are possible. The contractor shall provide 48 hours advance notice.

2. Lane closures during business hours are discouraged and will not be allowed without prior approval. If allowed, the closure shall meet Manual on Uniform Traffic Control Devices (MUTCD) lane closure requirements.

D. Period of Performance

1. The period of performance for procurement and installation of the escalators is 270 days from the notice to proceed.

2. The period of performance for maintenance service is one (1) year from the date of Government acceptance and receipt of the contractors’ certificate of completion.

1.4 SECURITY / CLEARANCES

A. The contractor will be working with a red badge (one per person) provided from the Hoover Dam police security building. The contractor shall have placards on the side of their work vehicles stating the company name. The contractor shall also provide license plate information at the police building. In return, two Hoover Dam parking permits will be provided for use at designated parking locations at the Nevada Spillway parking lot.

B. Hoover Dam operations requires continuous and effective security measures. This responsibility is carried out by a Federal Guard System whose security regulations provide for controlled access to certain restricted areas including switch yards, power-plant, remote sites, and other critical areas. Restricted areas may be modified by the Government as necessary for Contractor’s access. The Contractor shall be responsible for ensuring that its employees comply with all established security rules and regulations including:

1. Construction Work Areas - All areas where work is required under this contract are designated as construction work areas. The Government shall designate suitable access ways to construction work areas for use by Contractor personnel.

Unless specifically authorized, Contractor personnel shall be restricted to these areas. It shall be the Contractor’s responsibility to ensure that its personnel remain only in these designated areas.

2. Restricted Areas - Contractor personnel shall not be permitted to enter established or designated restricted areas unless authorized by the Government. Such entry shall be in accordance with and subject to the security regulations established in the area. It shall be the Contractor’s responsibility to ensure that its personnel shall not enter these areas unless authorized as set forth above.

C. The Contractor’s workers will each receive an Orange Badge, that reads “No Escort Required”. If one of the contractors needs access to a secured area, an escort will be required and provided. Most of the work is at the Visitor’s Center escalator area, which is a “No Escort Required” area. Any security questions should be directed to:

Gary R. Morgan Security Officer Lower Colorado Dams Office Bureau of Reclamation, LCD-10002 Office: (702) 494-2210 Cell: (702) 308-1189

1.5 SAFETY

A. The Contractor shall comply with all federal, state and local laws and standards as well as the Bureau of Reclamation manual Reclamation Safety and Health Standards (RSHS), 2014 Edition.

B. The Contractor may also download or view the electronic version of the RSHS manual, at no charge, from the Bureau of Reclamation web site at:

http://www.usbr.gov/ssle/safety/RSHS/rshs.html

C. The contractor shall submit a Site-Specific Safety Plan (SSSP), which addresses how work will be safely executed during this contract while in compliance with applicable industrial safety standards. Contractors shall follow code requirements and utilize sound methods for, but not limited to, fall protection, rigging, material hoisting, and scaffolding.

D. For the onsite work, the contractor shall perform and submit a Job Hazard Analysis to:

1. Identify safety hazards

2. Determine methods to mitigate and eliminate those hazards

1.6 HAZARDOUS MATERIALS

A. The Contractor shall be responsible for chemicals, grouts, sealants, or other pollutants that are released into the air, the dam’s drainage system, or into the Colorado river. The contractor shall ensure precautions are taken at the work site to contain potential hazardous material release into the Colorado River System.

B. Special consideration must be taken due to activities conducted directly above water resources. If hazardous material is released into the Colorado River system, then refer to the Lower Colorado Region – Hazmat and Oil Spill Standard Operating Procedures for instructions (1-LCR Spill Reporting SOP).

C. The contractor shall maintain onsite the technical data sheet and SDS sheet for material used on site.

D. All diverted waste should be tracked using FORM E: Waste Diversion Table and submitted to the COR.

1.7 PROTECTION OF EXISTING INSTALLATIONS AND STRUCTURES

A. The contractor shall safeguard the existing facilities and equipment from any harm resulting from their operations by using enclosures, drop cloths, coverings, etc. Any materials necessary to provide protection of existing facilities and equipment will be furnished by the contractor, remains the property of the contractor, and upon completion of the work, will be removed from the facility area by the contractor.

B. The contractor shall repair, at the contractor’s expense, any damage to property caused by the contractor’s action or by failure of the contractor to adequately protect the property. If the contractor fails to make such repairs in a timely manner, the Government may elect to repair the damage and to charge the contractor the cost of repair.

C. Any damage to historical property must be restored to original condition within a time frame as coordinated with the contracting officer or contracting officer’s representative not to exceed one year. The contractor shall repair, at the contractor’s expense, any damage to existing installations due to the contractor’s failure to provide proper protection. The Government may exercise the option to repair any such damage and charge the contractor for the cost at the discretion of the Contracting Officer.

D. The contractor shall remove from Hoover Dam all unused material, tools, and debris. The contractor is responsible for proper and legal disposal of all waste materials, oils and solvents according to hazardous waste disposal regulations. Clean up shall be inspected by Government and completed to the Governments satisfaction before final payment is made.

1.8 SPECIAL WORK PERMIT

A. The contractor will be required to sign and abide by the instructions pertinent to a Special Work Permit (SWP), which lists the Hoover Dam areas the contractor can access. The SWP will also identify any unusual hazards that might exist in the construction areas and will also include any clearances required for the safe completion of work.

1.9 ON-SITE TRAINING

A. Per Facilities Instructions, Standards, and Techniques (FIST) Volume 1-1, Hazardous Energy Control Program, Section 16 Special Work Permits (SWP), 16.1.5, the Contractor’s Workplace Representative must be trained on Reclamation’s F-HECP and authorized by the RO and placed on the Employee Authorization List (EAL). This will allow the Contractor’s Workplace Representative to use their lock for the hazardous energy control procedure utilized.

1. The Contractor’s Workplace Representative is the contractor’s onsite job supervisor.

2. HECP training, also called Lockout Tagout training, is one to two hours long and is conducted in-person with the Operation’s Department. The contractor shall coordinate with the Government Inspector or Contracting Officer’s Representative (COR) to schedule training.

1.10 ACCESS TO THE CONSTRUCTION WORK AREA

A. The Contractor shall coordinate with the Government a plan for access to the installation area.

B. The Contractor shall not block traffic with parked vehicles, equipment, and/or materials.

Additional area for the Contractor’s use shall be provided at an area near the warehouse.

C. The Contractor shall place identification labels, with the Contractor’s name, on the windshield of their vehicles parked at any location on the Hoover Dam site. This shall not be required if the Contractor’s name is prominently displayed at some other location on the vehicle.

D. The contractor shall ensure all areas are cleaned and maintained in neat and orderly manner. Waste material shall be removed and properly disposed of in approved and legal manners.

PART 2 REPLACEMNT ESCALATORS

2.1 GENERAL DESCRIPTION

A. This Section includes requirements for the design, fabrication, and installation of escalators, including trusses, drip pans, step drive units, tracks, driving machine and motor, controller and wiring, safety device and switches, brakes, overspeed governor, steps, step chains, comb teeth, step demarcation lights, handrails and handrail drive systems, landing plates, balustrades, skirt panels, deck covers and moldings, signs, and safety brushes.

2.2 MEASUREMENT AND PAYMENT

A. Measurement

1. Escalators will be measured for payment on a lump sum basis for each installed fully functional escalator.

2. All spare parts will be measured for payment on a lump sum for each escalator’s spare parts and special tools.

3. Maintenance will be measured for payment on a per-escalator per-quarter basis.

Maintenance shall include required updates of Operation and Maintenance Manuals.

4. Training, drawings, O&M manuals will be measured for payment on a lump sum basis of training completion and approved submittals

5. All other work items specified in this section will not be measured separately for payment and will be considered incidental to the work.

B. Payment

1. Escalator, spare parts, and maintenance will be paid for at the contract unit and lump sum prices for quantities as determined by the measurement methods specified above.

2.3 REFERENCES

Prevailing versions in effect at the time of contract signing shall apply to the work.

A. American National Standards Institute (ANSI):

1. ANSI A17.5 Elevator and Escalator Electrical Equipment

2. ANSI B18.12 Glossary of Terms for Mechanical Fasteners

B. American Society of Mechanical Engineers (ASME):

1. ASME A17.1 Safety Code for Elevators and Escalators

2. ASME A17.2 Inspectors Manual for Elevators and Escalators

3. ASME A17.2.3 Escalator and Moving Walkway Inspection and

Maintenance

4. ASME A17.3 Safety Code for Existing Elevators and Escalators includes Requirements for Electric and Hydraulic Elevators and Escalators

5. ASME A17.5 Elevator and Escalator Electrical Equipment

6. ASME B18.12 Glossary of Terms for Mechanical Fasteners

C. American Society for Testing and Materials (ASTM):

1. A90/A90M Method for Weight [Mass] of Coating on Iron and steel Articles with Zinc or Zinc-Alloy Coatings

2. A123/A123M Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

3. A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

4. ASTM A167 Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

5. ASTM A385 Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

6. A653/A653M Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot- Dip Process

7. ASTM A780 Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

8. TM A1008/A1008M Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High- Strength Low-Alloy with Improved Formability

9. ASTM B209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate

10. ASTM B211 Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

11. ASTM B308/B308M Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles

12. ASTM B633 Specification for Electroplated Coating of Zinc, on Iron and Steel.

13. ASTM E18 Standard Test Methods for Rockwell Hardness of

Metallic Materials

14. ASTM E84 Test Method for Surface Burning Characteristics of Building Materials

15. ASTM E136 Test Method for Behavior of Materials in a Vertical Tube Furnace at 750◦C

16. ASTM E384 Standard Test Methods for Knoop and Vickers Hardness of Materials

17. ASTM F593 Standard Specification for Stainless Steel Bolts, Hex Caps, Screws, and Studs

18. ASTM F594 Standard Specification for Stainless Steel Nuts

D. American Welding Society (AWS):

1. AWS D1.1 Structural Welding Code – Steel

E. Anti-Friction Bearing Manufacturers Association (AFBMA):

1. AFBMA No. 9 Ball Bearing Loading Ratings

2. AFBMA No. 11 Roller Bearing Loading Ratings

F. Military Specifications (MIL)

1. MIL-P-21035 Paint High Zinc Dust Content, Galvanizing Repair (Metric)

G. National Association of Architectural Metal Manufacturers (NAAMM):

1. AMP 503 Finishes for Stainless Steel

H. National Electrical Manufacturers Association (NEMA):

1. NEMA AB 1 Molded Case Circuit Breakers and Molded Case Switches

2. NEMA PB 1 Panelboards

I. National Fire Protection Association (NFPA)

1. NFPA 70 National Electrical Code

2. NFPA 101 Life Safety Code

3. NFPA 130 Standard for Fixed Guideway Transit and Passenger Rail Systems

J. Steel Structures Painting Council (SSPC)

1. SSPC-SP 3 Power Tool Cleaning

K. American Public Transit Association (APTA)

1. APTA RT-RP-FS-007-02

2.4 DEFINITIONS

A. Heavy-duty escalator: An escalator designed specifically for transit system usage, which is substantially different from commercial units in the design of the truss, drive machine, step, step chain, step chain tensioning device, brake, handrail drive and other components and associated equipment.

B. Working points: Points of intersection of step nosing lining and the horizontal of the top and bottom landing plates at finish elevation.

C. Special tools: Tools designed specifically for tasks associated with escalator inspections, maintenance, and repair, or those which are required for these tasks and are not readily available through normal purchasing channels.

D. Escalator support: These are the upper, lower and intermediate supports needed to support the total loads of the escalator.

E. Slip joints: A slip joint is a sliding joint required to support escalators in a transit system and high-rise applications. Location shall be at bottom support areas or as indicated on the contract drawings.

F. Structural Rated Load: For the purpose of structural design, the rated load shall not be less than the weight of the escalator system plus the product of 674 pounds on each exposed step times the number of exposed steps.

G. Machinery Rated Load: For the purpose of driving machine, power transmission and braking calculations, the rated load shall not be less than:

Machinery rated load (pounds) = 7.0 (W + 8) B Where:

W = width of the step tread (inches) rounded to the next whole inch.

B =√3 X Total Escalator Rise (feet)

H. Authority having jurisdiction (AHJ): As defined by ASME A17.1.

I. Beneficial Use: The time when the escalator is placed into service, which may be prior to the site being ready for public use.

J. Contracting Officer (CO):

K. Contracting Officer Representative (COR): The designated Conracting Officer’s Representative.

L. Contractor: The responsible party who installs the escalator.

M. Escalator Support: The upper, lower and intermediate supports needed to support the total loads of the escalator.

N. Final Acceptance: The point at which the Government accepts the escalator project as being complete, including all submittal requirements. This may be a different point in time than substantial completion.

O. Flat Steps: The distance, expressed in step lengths, that the leading edge of the escalator step travels after emerging from the comb before moving vertically.

P. Human-Machine Interface (HMI): The software interface between the SCADA and the Programmable Logic Controller (PLC).

Q. Notice to Proceed (NTP): The formal notification in which the escalator Contractor is notified to proceed with the project.

R. Step Width: The horizontal distance between skirt panels.

S. Substantial Completion: The point at which the escalator is ready for use, whether the site is finished or not. This is where the jurisdictional inspection usually takes place.

T. Supervisory Control and Data Acquisition (SCADA): A control system architecture that uses computers, networked data communications and user interfaces for high-level process supervisory management.

U. The Government: The Government agency in control of the facility.

2.5 ABBREVIATIONS AND ACRONYMS

A. ABMA Anti-Friction Bearing Manufacturers Association

B. AC Alternating Current

C. ADA Americans with Disabilities Act

D. AHJ Authority Having Jurisdiction

E. ANSI American National Standards Institute

F. APTA American Public Transportation Association

G. ASME American Society of Mechanical Engineers

H. AWS American Welding Society

I. BIM Building Information Modeling

J. FFT Fast Fourier Transform

K. FPM Feet Per Minute

L. GFCI Ground Fault Circuit Interrupter

M. HMI Human-Machine Interface

N. HP Horsepower

O. HVAC Heating, Ventilation, Air Conditioning

P. kN Kilonewton

Q. LCD Liquid Crystal Display

R. LSHF Low-Smoke, Halogen Free

S. NFPA National Fire Protection Association

T. NTP Notice to Proceed

U. O&M Operation and Maintenance

V. OEM Original Equipment Manufacturer

W. OSHA Occupational Safety & Health Act

X. PLC Programmable Logic Controller

Y. PST Pacific Standard Time

Z. PVC Polyvinyl Chloride

AA. SCADA Supervisory Control and Data Acquisition

BB. SDS Safety Data Sheet

CC. UL Underwriters Laboratories

DD. VFD Variable Frequency Drive

EE. VVVF Variable Voltage Variable Frequency

2.6 QUALIFICATIONS

A. Manufacturer’s Qualifications: The escalator manufacturer shall have been a builder of heavy-duty transit type escalators and regularly engaged in escalator building activities for, at least, the past five years. The design, engineering and manufacture of major escalator components such as truss, drive machine, steps, controllers, and safety devices shall be of the same manufacturer, except where otherwise specified.

B. Contractor’s Qualifications: The Escalator shall be installed by a Registered Licensed Contractor with an Elevator / Escalator license in any US state.

2.7 DESIGN AND CONSTRUCTION REQUIREMENTS

A. All escalators provided under the contract shall be the product of a single manufacturer.

Design and construction requirements for the escalators shall meet or exceed the minimum requirements from ASME A17.1’s latest version, at the time of contract signing, except as specified herein and as shown on the Contract Drawings.

B. Escalators shall be heavy-duty type, designed specifically for the operation, loading and environmental conditions encountered in extensively used, heavy-rail transit systems and shall have a minimum design life of 30 years.

C. Escalators shall be designed for outdoor use. Escalators shall be designed to operate while exposed to sunlight, rain, airborne dust and debris. Provisions shall be incorporated in the design to accommodate rainwater drainage. Escalators installed outdoors shall be designed to operate while exposed to the natural elements of weather, at all conditions of relative humidity, while exposed to airborne dust, debris, and corrosive elements at a dry bulb temperature range of minus ten (-10) to plus one hundred and twenty (+120) degrees Fahrenheit.

D. The Contractor shall design and fabricate escalators to fit within the dimensions of the existing wellway. Prior to truss fabrication, the Contractor shall verify the wellways’ dimensions.

E. Performance Requirements

1. Hours of escalator operation: Shall be considered as 16 hours per day, seven days per week.

2. Daily duty cycle: Shall be 6 hours at 100% design load, 6 hours at 50% design load, 4 hours at 25% design load.

3. Direction of travel: Shall be Bi-directional, up or down and reversible.

4. Speed:

1) 100 feet per minute, plus or minus 4 feet per minute maximum speed variation under varying load conditions in either direction.

2) Maintenance speed: No greater than 25 percent of rated speed.

5. Vibration:

1) Vibration level shall not exceed 0.4 inches per second as tested using a Bruel and Kjaer Model 2516 Laser Doppler Vibrometer or equivalent.

2) Readings will be taken throughout the travel of the exposed steps.

6. Vertical rise: As shown on contract drawings.

7. Inclination: Not to exceed 30 degrees.

8. Nominal step width: 24 inches.

9. Static brake load (load per step on the total number of exposed steps on the incline): See Machinery Rated Load Definition

10. Dynamic brake load (load per step running in down direction on exposed steps on the incline): See Machinery Rated Load Definition

11. Motor duty load. With a minimum step load per step (on incline only) as follows: See Machinery Rated Load Definition

12. Step chain load. To be based on the step loads as follows: See Machinery Rated Load Definition

F. Escalators shall be designed to provide minimum two flat steps at both the upper and lower ends.

G. The drive mechanism shall be located within the truss.

H. Escalators shall be designed with provisions for thermal expansion and contraction of complete escalator assemblies due to changing ambient conditions.

I. No wood products shall be permitted in the escalator system.

J. The drive mechanism, step drive unit assembly, steps, step linkage, comb plates, handrails, handrail drive units, and any parts subjected to wear or frequent removal shall be readily and easily removable and replaceable without requiring any modification or alteration of escalator structure, station structure, or equipment.

K. For equipment parts that are subject to wear and require periodic replacement, provide key and seat, nuts, screws, or other removable and replaceable type mechanical fasteners.

Such replacements shall not diminish original structural integrity. Use of rivets, or similar type fasteners, that require physical deformation during field positioning will not be permitted.

L. All gaps and running openings within structural design tolerances where the escalator structure meets the surface of the finished openings shall be properly sealed using a polyurethane sealant, or other approved sealant, installed in accordance with the manufacturers' instructions.

M. The escalator’s equipment shall be quiet, smooth running, and be capable of withstanding the operating conditions described herein.

1. Airborne Noise Criteria: Maximum airborne noise shall not exceed 65 dBA measured at distance of 60 inches above any moving step throughout the length of escalator travel and the immediate surrounding public areas.

N. Surface irregularities, sharp edges, or protrusions in public and maintenance areas shall not be permitted.

O. Seismic Design Criteria: The escalators shall be designed to meet or exceed the minimum seismic requirements from ASME A 17.1’s latest version, at the time of contract signing.

P. Fire Protection:

1. The Contractor shall provide escalators constructed of non-combustible materials throughout as defined in ASTM E136, except for handrails, handrail rollers, chain step wheels, and electrical equipment. Handrails shall have a flame spread rating of 76 to 200, when tested in accordance with ASTM E84.

2. Fire protection shall comply with requirements as defined in ASME A17.1 and NFPA 130 and be compatible with the existing Visitor’s Center fire protection system.

3. Wiring used throughout the escalator installation shall be low smoke and halogen-free.

4. PVC shall not be used anywhere in the escalator installation.

Q. Clearances:

1. Bottom escalator pits: There shall be a minimum working space of 36 inches between the step or step guard and the end of the escalator truss or any component along the pit wall, whichever is less.

2. Upper escalator pits: For escalators with the controller located in the machine room, there shall be a minimum working space of 36 inches between the step guard and the end of the escalator truss or any electrical component along the head pit wall, whichever is less.

R. Escalator pit heating, cooling, and ventilation: The Contractor shall install heaters, coolers and ventilating fans where required.

S. Pit drainage: Prior to any field work, the Contractor shall review current drainage provisions for adequacy. If modifications are required, the Contractor shall coordinate with the Government.

T. Operating controls

1. Escalators shall have key-operated switches, accessible at both upper and lower landings, located on the exterior deck above the newel base. Alternate locations may be used but are subject to Government approval.

2. Each keyed switch shall be clearly and permanently labeled, including starting and direction selection.

3. Interlocks shall be provided to bring the escalator to a smooth stop, in either direction of travel, before a change of direction may be made.

U. Safety devices

1. Safety devices include but are not limited to those required by the current edition of ASME A17.1 in effect at the time of contract award.

2. A lockable stop-switch or disconnect shall be provided in both escalator pits.

V. Temporary and permanent electrical power services

1. Three-phase temporary power with the same characteristics as the permanent power will be made available to the Contractor at the time of the setting of the truss. Permanent power will be made available for testing. All power will be provided at no cost to the Contractor; however, all connections must be provided by the Contractor.

2. For the escalator drive systems: 208, 220 or 480 volts, 3 phase, 3 wire, 60 hertz (Hz) terminating in a disconnect switch, within sight of the controller, shall be established by the Contractor.

3. For lighting and GFCI receptacles: 120 volts, 1 phase, 3 wire, 60 Hz terminating in the escalator truss.

2.8 TRAINING

A. The Contractor will provide 32 hours of local training and provide a training video specific to the installed equipment. The training shall be for the Government and its representatives in the proper use, operations, daily maintenance, and troubleshooting of the installed escalators. The courses shall include the following training:

1. Classroom: Training shall give course participants an understanding of the overall system operation.

2. Hands-on: Training shall give course participants actual maintenance experience.

B. The training shall:

1. Review emergency provisions, including emergency access and procedures, to be followed at the time of operational failure and in conjunction with other building emergencies.

2. Train Lower Colorado Dam Government Personnel in normal procedures to be followed in trouble shooting operational failures or malfunctions.

3. The Contractor shall provide the master and five additional copies of all training manuals used for the training as reference documentation.

4. The Contractor shall assume that Government personnel to be trained have only the basic skills pertinent to their craft as outlined in the Government's job descriptions for the involved personnel.

5. The Contractor shall assume that the Government’s course participants have no knowledge of the equipment or system’s features.

6. The Contractor shall provide all special tools, equipment, training aids, and any other materials required to train course participants. The number of special tools and other training equipment shall be adequate for the number of participants attending the course.

7. Training shall be conducted at any time prior to turnover of the escalator system to the Government.

8. Training Location and Classrooms: All training courses shall be conducted at Hoover Dam Visitor’s Center.

C. Videotaping:

1. Provide video training tape(s) covering complete troubleshooting of escalator drive/brake/fault finder system.

2. In addition, the Contractor may utilize prerecorded lectures as supplementary training material. These shall not serve as a replacement for a classroom instructor or as the primary training vehicle.

3. The Contractor shall provide such videotapes to the Government for retention and playback by the Government's Instructors as reference documentation.

4. The Government shall have the right to videotape training courses presented by the Contractor. The Government shall also have the right to use these videotapes to train personnel in the future.

2.9 SPECIAL TOOLS

A. The Contractor shall submit for approval, a list of recommended special tools necessary for the operation and maintenance of the escalator.

B. At the completion of each escalator, the Contractor shall deliver special wrenches, tools, and keys to the COR. Including and not limited to:

1. All tooling required to attach a torque wrench to the drive machine in order to accurately measure the brake torque

2. A set of tooling required to remove the steps

3. Three complete sets of keys to operate each different type of key-operated switch and lock.

4. Hooks, T-Handles, etc. required to remove the floor plates. If T-Handles are required for the removal of the landing plates, provide four or each.

C. Label each special wrench, tool and key with an approved plastic or metal label tag.

Labels shall be engraved to identify the tool. For keys, provide each key and its tag on a key ring.

2.10 SPARE PARTS

A. The contractor shall submit for approval a list of recommended spare parts necessary to support maintenance for a two-year period.

B. Provide a set of spare parts for each escalator. These sets shall become the Government's property and shall not be used by the Contractor for maintenance.

C. Required Spare Parts. The Contractor shall supply the following spare parts and any additional parts identified by the manufacture’s Spare Parts List.

1. Comb plate and demarcation strips – five complete sets

2. Complete step assemblies, including rollers, side plates, demarcation and tread plates – ten assembles

3. Step chain – one complete set for each supplied escalator

4. Handrail drive – one complete assembly for each escalator supplied (left and right) including, but not limited to, gears/chains, sprockets, and wheels

5. Chain rollers – two complete sets per axle

6. Step rollers – two complete sets per step

7. Brake components – One complete brake assembly for each supplied escalator, including actuator, drum and bearings. Include two sets of each size brake shoe/banks or a minimum total of 10 sets.

8. Demarcation fixture and ballast – two complete units and 12 demarcation lamps.

9. Switches (micro/safety) & sensors – one of each unique type

10. Fuses – two of each size

11. Printed circuit board (plug-in or hardwire) – one for each type use

12. Start switch / stop button assembly – one set

D. Prior to deliver, notify the COR in writing, at least 72 hours in advance. The notification shall identify the specific parts to be delivered. All spare parts shall be delivered no later than 30 days prior to the completion of entire contract.

2.11 SUBMITTALS

All documentation shall be in English and have 8 point or larger font. All electronic material shall be provided in Portable Document Format (PDF). Large data files may be submitted via applications such as “Kiteworks” or similar. Documentation may be submitted on a USB “thumb” drive if approved in advance by the Government’s Information Technology section.

The contractor shall provide the following submittals:

A. Shop Drawings: The contractor shall submit three hard copies and one electronic copy of the shop drawings. Submit shop drawings and data, including the following, to the COR for approval.

1. Fully dimensioned, U.S. standard, (i.e. feet and inches) layout in plan and elevation views indicating component locations, structural supports, access spaces, and points of entry.

a) Artist rendering of final escalators and their placement shall be included.

2. Loads on supporting members, reaction points and loads, and deflections under varying loads. Loads imposed on the structure by the escalator system shall not exceed the safety limit of the structure. The Contractor shall be responsible for verifying that these requirements are met and shall provide supporting calculations for record file stamped by a Registered Professional Engineer

3. Escalator Sections, manufacturing details of balustrades, deck, and skirt panels showing reinforcing jointing, anchorage, size, shape, and materials of each component, method of assembly, finishes including push button fixtures, key switches, and required signage. Indicate direction of stainless steel’s directional grain

4. Drawings for the truss, stanchion track system and supports. These drawings must include:

1) Drive chains and gear train

2) Step chain or step links (including chain pitch)

3) Step and trailer wheels

4) Reinforcements, jointing and anchorages

5) Size, shape, and materials of each component

5. Layout of the electrical system including:

1) Motor, control panel, disconnect switches

2) Directional start and stop key switches, emergency stop switches and covers

3) Light fixtures, receptacles, and control devices

4) Schematic diagrams that include a single-line power diagram of the escalator system, control wiring diagram and sequence of operation, and interface connections with signal and control system. Include a contact count matrix with these diagrams.

5) Provide complete schematics of all internal components and circuit boards, wiring for external devices, and the controller.

6) Show complete wiring diagrams with raceway types, sizes and conductor identification.

7) Show nomenclature, full identification, and function of contacts.

8) Provide logic diagrams and the controller’s application programming source code. Software documentation shall include programmer’s notes and comments and identify all functions and components.

6. Drawings and technical data for the:

1) Drive system, step drive system, handrail drive system, brake system

2) Controller, safety devices and switches

3) Step chain material details, configuration, arrangement, and lubrication requirements

4) Step nosing radii at upper and lower ends and step assembly including axle, step tread, rollers, frame and riser

5) Safety brush material, mounting method and profile

6) Steel grade and heat treatment certification records of all components (copies acceptable)

7) Records showing under-tension chain length measurements

8) Hardness and case depth test results on representative samples of pin outside diameter and bushing inside diameter surfaces after finish-grinding. Superficial hardness test results, per ASTM E 18, shall conducted on Rockwell C scale. Per ASTM E 384, determine case depth with Knoop 500-gram microhardness test.

9) Step assembly (including axle, step tread, frame and riser). Provide step chain test certificates for approval.

10) Support details (including upper, lower, intermediate and slip joint)

11) Safety switches and operating devices

12) Speed governor specifications

13) Radial, vertical and horizontal dimensions required for manufacture, and positions of lower and upper working points

14) Attachment of truss to structure

15) Hand and finger guards

16) Passenger instruction signs

17) Operating panel in upper and lower balustrades (including stop button, start and direction selection switches, and fault finder receptacle)

18) All bearing ratings, identification and catalog numbers shall be provided

B. As-built drawings: The contractor shall submit one set of as-built drawings to reflect the actual as-built condition, including all structural, architectural, electrical, mechanical and plumbing connections to the escalators.

C. Product Data:

1. Manufacturer's design data and material specifications for all replacement parts and equipment. Specifications shall include test methods required to verify compliance with specifications.

2. Lubricants, sealers, paints and any other potentially hazardous substances shall be submitted to the COR for review. The Contractor shall submit the necessary Safety Data Sheets (SDS).

D. Operation and Maintenance Manuals: Submit Operation and Maintenance manuals and data:

1. Drawings, installation and maintenance instructions, and other data pertinent to the components used in the escalator systems, including:

1) Detailed repair data for all components, including disassembly and re-assembly of drive system, handrail drive assembly, and track system

2) Inspection/gauging/torque requirements, inspection and testing schedules, reassembly, testing methods and other related information.

3) Manuals shall cover all mechanical and electrical components, operating panels, controls and indicators. Exploded view drawings of all assemblies and a complete view for identifying all system parts shall be included to facilitate repair/replace and maintenance functions.

2. Indented Bill of Materials. For each escalator, submit an Indented Bill of Materials that includes a list of all assemblies, subassemblies, components and individual parts of the escalator. Each assembly shall be broken into subassemblies, which shall be in turn broken into components, subcomponents, or individual parts. At each level or indentation of the bill of materials, there shall be a full definition of the item to a degree that allows a mechanic to place an order for a replacement part. Include data, such as, description of the item, manufacturer part number, and quantity required. Individual assemblies, subassemblies, components, subcomponents, or individual parts, common to one or more escalator shall have the same identification throughout the system.

3. Trouble shooting instructions and techniques.

4. Procedures for adjusting brake, handrail tension, handrail chain drive tension, step chain tension, track system, and mechanical components.

5. Instructions for removing floor plate, replacing comb components, removing and installing steps and interior panels.

6. Control and schematic electrical wiring diagrams and source code of controller, including wiring of safety devices to connections with remote indication and control panels for each escalator and group of escalators. Complete detail drawings and wiring diagram of escalator fault finding device, source code and connection to annunciator panel. Descriptions of safety devices.

7. Electrical layout showing placement of lighting, light switches, receptacles, light fixtures, disconnect switches, and convenience outlets in machinery room, truss envelope, and pits.

8. Safety rules, tests and procedures, including testing of all systems and subsystems.

9. Detailed lubrication and cleaning schedule indicating weekly, monthly, quarterly, semiannual and annual lubrication; and a description of each lubrication point, lubrication type and specification.

10. The Safety Data Sheets (SDS) and product data sheets shall be submitted with an index that lists each product, its application method, approximate quantity of product per escalator, and the component the product is applied to or associated with. The Contractor shall allow six weeks for review of the SDS.

11. The contractor shall submit a training plan and syllabus within 60 days of the

NTP.

E. Certification: For each lot or load of all chains and handrails delivered to the jobsite, furnish the manufacturer's affidavits, compliance test reports, or similar acceptable certification to the COR. These documents certify that the materials used comply with the escalator manufacturer's specification requirements.

F. Testing: Submit detailed test procedures and test schedules for approval. Testing shall include all aspects of mechanical and electrical operations under normal conditions.

Refer to Field Quality Control, specified herein, for acceptance testing requirements.

G. Outage and Road Closures: Submit an installation schedule and requested line outage(s) and road closures.

H. Spare Parts: Submit a spare parts list and special tools list for approval

I. Calculations:

1. Electrical Calculations: For each escalator, submit for approval:

1) Power system calculations, signed by a currently licensed registered Professional Engineer, for the main feeder circuit used for operations at the Machinery Rated Load and for the escalator starting condition.

2) Electrical/Mechanical calculations for the sizing of the driving machine, motor, and brake.

2. Brake Calculations: For each escalator, submit detailed calculations for the brake system, which includes braking distance and deceleration rate. These calculations shall be in accordance with ASME A17.1 and APTA for all loads in between a “zero load” up to the Machinery Rated Load for both directions of travel.

J. Welders Certificates: Per AWS D.1.1.

2.12 MAINTENANCE

A. Maintenance Program: Within 60 days after the NTP and prior to installation, the Contractor shall submit a detailed maintenance program that shows all functions to be performed and their required periodicity. The maintenance program shall also include trouble call services and emergency repair services.

B. Maintenance Period: The Contractor will not be relieved of initial maintenance until final acceptance of the escalator is issued. The duration of the initial maintenance period shall be extended, if necessary, until all punch list items are cleared to the satisfaction of the CO and COR, the Government, its inspector(s), and any third-party inspector(s). Upon acceptance and after the unit is open for public use, the Contractor shall perform maintenance on the escalator for a period of twelve months and invoiced on a monthly basis. The Government reserves the right to terminate the maintenance period, at any time. Written notice of the intent to terminate will be provided to the Contractor 30 days in advance of the termination date. The Government shall receive credit for any unused portion of the maintenance period. During the maintenance period, provide complete continuing maintenance on the entire escalator’s mechanical and electrical equipment.

Maintenance shall include all work and materials needed to keep the equipment in a condition suitable for normal, full capacity operations.

C. The Contractor shall coordinate and perform maintenance in a manner that results in minimum inconvenience to the public.

D. Escalator Access: The Contractor shall inform the COR and CO each time an escalator is removed and returned to service

E. Work Hours for Maintenance: Routine maintenance shall not be performed during Visitor Center business hours. Unless otherwise directed by the Government, routine maintenance, non-urgent repairs, and warranty work shall be performed on only one escalator at any given time. Urgent repairs shall be completed, tested, and the unit returned to service as soon as possible. For routine, non-urgent work, the Contractor shall notify the COR to request equipment access at least 48 hours in advance.

F. Maintenance Period Inspections: Qualified personnel shall conduct maintenance inspections every two weeks. At a minimum, inspections shall recommend escalator adjustments and lubrication points as needed and recommended by the manufacturer.

Any defective parts shall be replaced with OEM parts that meet or exceed OEM specifications.

G. Follow-Up Tests: Test all safety devices at three-month intervals and submit written test reports to the Government.

H. Performance Standards:

1. Maintain the performance standard specified herein and maintain correct operation of all safety devices and circuits.

2. Consistently maintain uniform starting, stopping and uniform riding qualities.

I. Escalator Shutdowns: Should an escalator become inoperative; the Contractor shall respond to the escalator within four hours of notification. If the incident occurs after 8:00

PM, the service representative shall be on-site no later than 7:30 A.M. the following day.

The escalator shall be returned to service as quickly as possible with minimal impact to the public. If the Contractor fails to comply with this requirement, the Government may order the work to be accomplished by others at the Contractor's expense. Such action by the Government will not affect the Contractor's responsibility to warrant the work.

J. Final Service and Inspection:

1. Two weeks before expiration of the maintenance period, the equipment shall be lubricated, fully serviced, adjusted to the standards designated herein and safety devices shall be checked. The Contractor shall re-lamp the escalator’s demarcation light fixtures and pit light fixtures. The Contractor shall also perform a comb impact test and no-load brake tests, in accordance with the Field Quality Control section included herein. If these tests demonstrate any non-compliance with the specifications, the Contractor shall perform the full battery of brake tests until the escalator is in full compliance. Each test shall be approved by the COR or the Government’s designated representative.

2. The COR, or the Government’s designated representative, will conduct the unit’s final service inspection.

K. The Contractor will not be responsible for cleaning and repairing the balustrades, cladding, or decking, except if repair is due to detective materials or improper installation. The Government’s service personnel shall be responsible for cleaning oil and grease residues from maintenance or repair efforts.

L. Keep a work log for each escalator that includes all visits, shutdowns, and repairs. Log entries shall include the worker's name, date, time arrived, total time spent, work accomplished, and all parts inspected, adjusted, or replaced. The work logs shall be submitted to the COR once per month.

M. The Contractor shall maintain a local stock of parts for maintenance and repair throughout the warranty period and the maintenance period.

N. The Contractor will not be responsible for trouble calls that are due to misuse, accidents, or any event where the Contractor is not at fault. Service calls which result in safety device adjustments that are not accessible to the public will not be reimbursed. The Contractor shall submit all documentation necessary to prove that a service issue was due to misuse. The Contractor shall also submit all documentation necessary to justify the direct costs incurred.

2.13 RELIABILITY

A. Definitions:

1. Break-in Period: The initial period of operation of the escalator. There shall be only one break-in period per escalator, regardless of maintenance, unless a modification or other major work done has been performed on the escalator, during, or after the break-in period.

2. Failure: An incident which is corrected by replacing a part, resetting the unit, or making an adjustment. Exceptions to failure are conditions of misuse, vandalism, accidents or negligence not caused by the Contractor.

3. Incident: An incident is any escalator stoppage, regardless of cause.

4. Pattern Failures: The occurrence of multiple independent failures of the same primary replaceable item or adjustment in identical or equivalent applications.

5. Reliability Demonstration Test (RDT): A test to determine a reliability-associated parameter, such as available operating time,…