Question

The use of dimming systems for street lighting is recommended when the supply voltage exceeds

• A. 220 V
• B. 240 V
• C. 440 V
• D. 415 V

Hint:

Dimming systems for street lighting help optimize energy consumption, especially when dealing with higher voltage supplies like 415 V.

Answer 1

The Correct Option is D

Dimming systems for street lighting are often used in areas where the supply voltage is high. The use of these systems is recommended when the supply voltage exceeds 415 V, as they help reduce energy consumption by lowering the intensity of light during non-peak hours.
Dimming can be used in modern street lighting to improve energy efficiency while maintaining safety and visibility, especially in areas with higher voltage systems like 415 V.
While lower voltages such as 220 V and 240 V may not typically require dimming systems for street lighting, the use of such systems becomes more important when the voltage exceeds 415 V.