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- W45783131 abstract "MARTA (Metropolitan Atlanta Rapid Transit Authority) has recently installed over 720 AT&T Lineage 2000 Round Cell batteries at eleven locations. Emergency power for MARTA's rail stations is provided from uninterruptible power supplies (UPS) rated from 25 to 125 KVA. These units support critical loads in the event of a power loss at the rail station. The MARTA design criteria is in accordance with NFPA 101 Life Safety Code. Egress lighting requires a minimum of one (1) foot candle for ninety (90) minutes. This project is described in detail and provided as an example to show what steps MARTA's maintenance engineers took to specify and use new technology to achieve world class results. Discussions on technical issues, specifications, competitive bids, justification of cost, and quantification of return are included. A supportive team approach was used in order to reduce individual risk and allow the Authority's maintenance engineers to step out of the safe business as usual solutions and achieve the benefits of technological advances. The uninterruptible power supply batteries are a challenge for all transit authorities. The high maintenance cost and poor reliability of this life safety system pushed MARTA to investigate alternative solutions. This paper will discuss the investigation of the existing operating conditions and technology used. Common concerns to all transit authorities such as temperature, maintenance, and other factors affecting to battery life are included. Our installation success and pit falls are covered including, technical specifications, warranty, contractor/sub-contractor relations and bonding." @default.
- W45783131 created "2016-06-24" @default.
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- W45783131 date "1996-01-01" @default.
- W45783131 modified "2023-09-26" @default.
- W45783131 title "EMERGENCY BACK-UP POWER FOR RAIL STATIONS ROUND CELL TECHNOLOGY IMPLEMENTATION REPORT" @default.
- W45783131 hasPublicationYear "1996" @default.
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