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Massachusetts Bay Transportation Authority Contract Specifications For

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Massachusetts Bay Transportation Authority Contract Specifications For Massachusetts Bay Transportation Authority Contract Specifications for Green Line Security Upgrades Green Line D Branch Fiber Optic Cable Installation IFB CAP XX-14 Volume 1 of 2 May, 2014 Jacobs Engineering 343 Congress Street Boston, MA 02210 Green Line Security Upgrades CONTRACT SPECIFICATIONS TABLE OF CONTENTS SECTION NO. OF PAGES DIVISION 1: GENERAL REQUIREMENTS 01010 Summary of Work 16 DIVISION 2: SITE WORK 02100 Site Preparation 4 02221 Demolition 7 02298 Temporary Pedestrian Facilities 3 02300 Earthwork 15 02513 Bituminous Concrete Pavement 16 02650 Existing Site Utilities 5 DIVISION 3: CONCRETE 03300 Cast-In-Place Concrete 19 DIVISION 4: MASONRY 04800 Masonry 17 DIVISION 5: METALS 05500 Miscellaneous Metals 12 DIVISION 9: FINISHES 09900 Painting 16 DIVISION 16: ELECTRICAL 16050 Basic Materials and Methods for Electrical Work 11 16195 Electrical Indentification 5 16450 Grounding 4 16749 Fiber Optic Cable Systems 8 16826 Communications Cable Routing Systems 7 16844 Communications System Junction Boxes 2 16876 Communications Grounding of Equipment 2 16898 Communications Systems Tests 20 GREEN LINE SECURITY CS-ii UPGRADES 2014 APPENDIX A Green Line - Pictures of Existing Conditions 12 GREEN LINE SECURITY CS-iii UPGRADES 2014 SECTION 01010 SUMMARY OF WORK PART 1 - GENERAL 1.1 GENERAL DESCRIPTION A. This Section specifies the procurement, installation, testing, and certification of a 72-strand and a 12-strand singlemode outside plant fiber optic cable system, including all ancillary equipment for a complete and functional installation, on the MBTA Green Line D Branch. As shown on the Contract Drawings, and as required herein, the 72-strand fiber optic cable shall be properly routed to, and terminate in, each of the following stations: Kenmore, Fenway, Longwood, Brookline Village, Brookline Hills, Beaconsfield, Reservoir, Chestnut Hill, Newton Centre, Newton Highlands, Eliot, Waban, Woodland, and Riverside. As shown on the Contract Drawings, and as required herein, the 12-strand singlemode outside plant fiber optic cable shall be installed from the applicable Communication Room/Shelter to the Kenmore, Aspinwall, Cook’s Junction, Hammond Pond, Reservoir, and Riverside Traction Power Substations. B. The Contractor shall field verify all distances and fiber optic cable lengths, and submit to the MBTA prior to ordering fiber optic cable. C. All work shall be closely coordinated with the respective MBTA departments prior to conducting any onsite activities. The Contractor shall take extra precautions when working in proximity to the high voltage equipment in the Traction Power Substations. D. All Contractor employees working on site during this project shall have on their person a current MBTA Right-of-Way license. The costs associated with Right-of-Way training, certification, and recertification shall be included as part of the Contractor’s bid. E. The fiber optic cables shall be installed as shown on the Contract Drawings using means and methods in compliance with all MBTA and industry standards identified herein. All material and workmanship shall be of the highest quality assuring durability for a minimum life expectancy of twenty (20) years. All materials shall be manufactured under an established Quality Assurance Program, proof of which shall be submitted to the MBTA for approval. F. The existing aerial messenger cable has an existing sixteen (16) strand outside plant fiber optic cable attached to it by various means, the majority of which is a spiral lashing. This cable is in service, and must remain in service throughout the project. The Contractor is responsible for maintaining the integrity of the existing fiber optic cable, messenger, junction boxes, raceways, penetrations, splice enclosures, patch panels, terminations, etc. Should any portion of the existing system be compromised by the Contractor, it shall be fully and permanently restored at no additional cost to the MBTA within two (2) hours of notification by the MBTA. G. The existing aerial messenger cable, at some locations, is within close proximity to active signal and power cables. As such, over lashing may not be possible. At such locations, the Contractor shall submit for MBTA approval an alternate means (i.e. lashing straps) of attaching the new fiber optic cable(s). H. The existing aerial messenger cable, at some locations, has additional cables attached to it with plastic cable ties. As such, over lashing may not be possible. At such locations, the GREEN LINE SECURITY SUMMARY OF WORK UPGRADES 2014 01010 - 1 Contractor shall submit for MBTA approval their proposed means (i.e. utilizing lashing straps, or removing cable ties before over lashing) of attaching the new fiber optic cable(s). I. Should the Contractor’s means and methods, or work, cause damage to any cables or infrastructure, the Contractor shall be responsible for the immediate repair within two (2) hours, and eventual permanent replacement of the damaged cable, infrastructure or element, in accordance with the standards for the supported system, using staff qualified and approved by the MBTA on the affected system, and at no additional cost to the MBTA. J. After reviewing the Contract Documents, and the existing field conditions, the Contractor, at their option, may submit as part of their bid, the installation of a new self-supporting fiber optic cable, including all associated hardware and appurtenances for a complete and functional system, in lieu of utilizing the existing messenger system. The Contractor shall submit a proposed cable route and installation with all necessary detail for review and approval by the MBTA. K. The Contractor shall test each strand of each fiber optic cable in accordance with Specification Section 16898, and all other requirements contained herein. Tests shall include, but not be limited to, polarization mode dispersion, chromatic dispersion, power metering, and OTDR analysis. Any strands not successfully meeting manufacturer recommendations and the requirements of these specifications shall be replaced and/or re-terminated at no additional cost to the MBTA. A location shall not be accepted until it has been completely and successfully tested as required in Section 16898 of these specifications. All test results and documentation shall be provided to the MBTA in both electronic format and hard copy format. The electronic format shall be in a text searchable PDF format, the native document format, and in Telcordia SR-4731 “.SOR” format. The hardcopy format shall be produced directly from the electronic PDF documents. The Contractor shall provide any software required to view the test results in their native format. L. The Fiber Optic Link Loss (at 1310 and 1550 nm) shall be less than, or equal to: 1. Kenmore to Riverside express: 15.848 dB 13.311 dB 2. Kenmore to Reservoir express: 8.576 dB 8.007 dB 3. Reservoir to Riverside express: 10.924 dB 9.804 dB 4. Adjacent Stations: 6.064 dB 5.823 dB 5. Transit Stations to Traction Power Substations: 5.5 dB 5.4 dB 6. Losses at fusion splices shall be less than 0.01 dB M. The Contractor shall remove all trash, packing materials, spools, obsolete items, etc. from all work locations. N. For the purposes of bidding, the approximate work hours on this project shall be as follows: 1. Right of Way work, work that would foul the right-of-way, and work that would affect passenger commuting will be allowed from 1:30 AM to 4:30 AM with the proper flagging. 2. Platform work, that will not foul the right-of-way, will be allowed from 10 AM to 2 PM and 11:00 PM to 5:00 AM with the proper flagging. 3. Non-platform work in the public areas will be allowed from 9:00 AM to 3:00 PM and 8:00 PM to 5:00 AM. GREEN LINE SECURITY SUMMARY OF WORK UPGRADES 2014 01010 - 2 4. Work in non-public areas, if the work does not affect the public areas, train service, bus service, or cause a safety issue, will be allowed on an as-needed basis, with proper notice to the MBTA, and provided a representative of the affected MBTA department, or other designated person, is available to oversee work. 5. Work within the Traction Power Substations shall be coordinated with the MBTA Power Systems and Equipment Division. Work within the Traction Power Substations requires a five (5) business day advanced notice. MBTA Power Systems and Equipment Division Personnel are required on site when work is in progress within the Traction Power Substations. 6. The Contractor may not perform work on the MBTA, or its supporting systems, without proper notice, and prior and specific written approval from the MBTA. 7. The Contractor shall, at no additional cost to the project, make allowances for MBTA published holidays, special events, weather related events, availability of MBTA support personnel, operational needs, safety factors, other adjacent work activities, and other minor changes in the hours of work. 1.2 SCOPE OF WORK BY TYPE AND LOCATION A. Right-of-Way 1. From the Kenmore Station Communication Room to the Riverside Communication Shelter, install outside plant fiber optic cables as shown on the Contract Drawings, and as described herein. 2. Attach the cables to the existing messenger by means of over lashing. The lashing wire shall be sized to fully support all cables on the messenger. The lashing tension shall not compromise the cables, jackets, or fibers of either the existing cables, or the new fiber optic cables. Where over lashing is not possible or practical (as agreed to by the MBTA), the Contractor shall propose an alternate method for MBTA approval. 3. Wherever the cable passes a suspension clamp, part of the catenary system, guy wire, or any other structure, the Contractor shall install a split polyethylene chafing tube to protect the cable sheath from abrasion. The split polyethylene chafing tube shall be installed in such a manner that it remains permanently in place and protects all cables mounted to the messenger at that location.
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