National Academies Press: OpenBook

Guidebook for Detecting and Mitigating Low-Level DC Leakage and Fault Currents in Transit Systems (2020)

Chapter: Acronyms, Abbreviations, Definitions, and Initialisms

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Suggested Citation:"Acronyms, Abbreviations, Definitions, and Initialisms." National Academies of Sciences, Engineering, and Medicine. 2020. Guidebook for Detecting and Mitigating Low-Level DC Leakage and Fault Currents in Transit Systems. Washington, DC: The National Academies Press. doi: 10.17226/25743.
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Page 15

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15 Acronyms, Abbreviations, Definitions, and Initialisms A ampere AC alternating current ADC Analog to Digital Converter AEL Alternative Energy Lab AREMA American Railway Engineering and Maintenance-of-Way Association class TX category Extended Temperature range CSV comma-separated values DAC Digital to Analog Converter DC direct current EMI electro-magnetic interference ESDD equivalent salt deposit density FRA Federal Railway Administration GCRTA Greater Cleveland Regional Transit Authority GSM Global System for Mobile Communications HVAC high voltage alternating current HVDC high voltage direct current IC integrated circuit IEEE Institute of Electrical and Electronics Engineers KMZ Keyhole Markup Language NEC National Electrical Code NESC National Electrical Safety Code PCB printed circuit board PD partial discharge PGA programmable gain amplifier RF radio frequency SCADA supervisory control and data acquisition SHP Shapefile UA University of Akron USCD unified specific creep age distance V volt VAC volts alternating current W watt

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Improving the reliability of railway electric systems and preventing electrical outages due to insulator flashover and insulation failure are difficult because of aging infrastructure and the lack of continuous monitoring of the state of the systems.

The TRB Transit Cooperative Research Program's TCRP Research Report 211: Guidebook for Detecting and Mitigating Low-Level DC Leakage and Fault Currents in Transit Systems provides specifications for sensors being tested in the field and outlines their capabilities and appropriate operating conditions.

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