Practice question

What is the advantage of using 277V or 480V circuits for large roadway lighting systems?

  1. The luminaires will produce more light
  2. Higher voltage allows more luminaires per circuit, longer circuit runs, and smaller conductor sizes due to reduced current
  3. Higher voltage is always safer
  4. Higher voltage eliminates the need for grounding

Answer: B — Higher voltage allows more luminaires per circuit, longer circuit runs, and smaller conductor sizes due to reduced current

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