Practice question

What is the purpose of a surge protection device (SPD) in a roadway lighting system?

  1. To increase the voltage to the luminaires
  2. To protect sensitive electronic components (LED drivers, photocontrols) from voltage transients caused by lightning or utility switching
  3. To store electrical energy for backup power
  4. To dim the lights during storms

Answer: B — To protect sensitive electronic components (LED drivers, photocontrols) from voltage transients caused by lightning or utility switching

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Practice more: IMSA Roadway Lighting I Practice Questions - IMSA Roadway Lighting Technician Level I Certification Exam Exam →