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2018 SDDOT Airport Conference

2018 SDDOT Airport Conference. 2018 SDDOT Airport Conference. 1977 Piper Turbo Arrow III. Kevin Groves, PE | Power Division Manager. AN ENGINEERING SOLUTION CENTER. Agenda. AC 150/5340-26C - Maintenance of Airport Visual Aid Facilities Safety Aspects of Airport Lighting Systems

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2018 SDDOT Airport Conference

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  1. 2018 SDDOT Airport Conference

  2. 2018 SDDOT Airport Conference 1977 Piper Turbo Arrow III Kevin Groves, PE | Power Division Manager AN ENGINEERING SOLUTION CENTER

  3. Agenda AC 150/5340-26C - Maintenance of Airport Visual Aid Facilities Safety Aspects of Airport Lighting Systems Trouble shooting and repair of the airport lighting systems 2018 Airport Conference

  4. AC 150/5340-26C Maintenance of Airport Visual Aid Facilities

  5. AC 150/5340-26C

  6. AC 150/5340-26C Applicability. In general, use of this AC is not mandatory. However, use of this AC is mandatory for all projects funded with federal grant monies through the Airport Improvement Program (AIP) and with revenue from the Passenger Facility Charges (PFC) Program. Principal Changes. b. Paragraph 2.2 – a new section is added to be in better alignment with the personnel safety requirements in National Fire Protection Association (NFPA) 70E, Standard for Electrical Safety in the Workplace.

  7. AC 150/5340-26C 2.5 Safety Practices 2.5.1.1 Arc Flash Protection a. “Each piece of equipment operating at 50 volts or more and not de-energized while work is being performed, must be evaluated for arc flash hazard and shock protection.”…….determine the boundaries….. b. When the evaluation is complete, an arc flash hazard warning label must be affixed to the equipment and be conspicuous to employees who may work on the energized equipment.

  8. AC 150/5340-26C 3.2 Maintenance Records. Maintenance records are an important part of an effective maintenance management system; they provide a service history of each piece of equipment… Without records, knowledge gained from regular inspections will not be retained, and preventive maintenance will be difficult. 3.3 Preventive Maintenance Program. “Reliable functioning of airport lighted visual aids is essential to airport safety, capacity, and operation especially for low visibility operations. Therefore, it is essential that a preventive maintenance program be established to ensure reliable service and proper equipment operation.”

  9. Airport Lighting Safety

  10. 105 Vac 90 Vac 115 Vac 80 Vac Parallel vs. Series Circuit Lamp L-830 IN (240 Vac) CCR OUT (2.8 - 6.6 A) Series Circuit Parallel Circuit IN (120 Vac)

  11. Series Circuit Thoughts Electric Chair = 2000V 30kVA CCR = 4,500 V 7 -12 Amps 4.5 – 6.5 Amps Safety, Safety, Safety!

  12. Safety Although commonly done, it is not recommended to change lamps with the series circuit energized To CCR output Earth 14

  13. Safety Connecting an airfield lighting component to earth ground improves personnel safety • The following additional items should be grounded on the airfield: • In-pavement Fixtures • Elevated Fixture Baseplates • Base Can Cover Plates • Elevated Fixture Stakes AWG 6 EarthGround To CCR output 15

  14. Safety is the responsibility of each person performing the work. Use qualified personnel. The employer safety practices and policies must be followed. Use the appropriate personal protective equipment. (PPE level found on AF label) If possible, do not work on energized electrical equipment. Do not rely on inter-locks, indicating lights or switches for the presence of electricity. Always test the circuit to confirm the presence of electricity. Use a lock-out-tag-out system. Have a first aid and safety plan in place. Consider having an “observer” present. Safety Principals

  15. Troubleshooting

  16. AC 150/5340-26C Ch 6: Troubleshooting Procedures for Series Lighting Circuits 6.0 Troubleshooting tests contained in this chapter may involve voltages that are dangerous. Safety precautions must be exercised for the protection of personnel and property….. c. (1) Keep in mind that an airfield lighting series circuit powered by a constant current regulator is an ungrounded circuit. Therefore, the circuit and CCR will function normally with one ground on the circuit. (electric chair example) (2) It is only when two or more grounds appear and a “short circuit” path is created that the current begins to flow through the earth, around the lighting load, and a section of light appears out…….

  17. Series Circuit Theory Age Considerations: L-824 series circuit wire/transformer splices are rated 5000V when new L-824 High Voltage Wire Splice CCR IN OUT 20

  18. Electrical Room

  19. Electrical Room

  20. L-821 Control Panel

  21. L-849 REIL System

  22. System Wiring Diagram

  23. System Wiring Diagram

  24. Questions?

  25. Contact Information Kevin Groves, P.E. West Plains Engineering Inc. PO Box 7 Faith, SD 57626 Kevin.Groves@westplainsengineering.com PH: (605) 739-5211

  26. Thank You!

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