What is the voltage range for transmission arrestors?

The correct voltage range for transmission arrestors typically falls within 42kV to 230kV. This range is designed to protect high-voltage transmission lines from surge conditions caused by lightning strikes or switching events. Transmission arrestors are crucial for enhancing the reliability and safety of power systems, as they divert surges away from sensitive equipment and maintain system integrity.

Understanding this voltage range is important for linemen and electrical engineers, as it informs them about the proper selection and implementation of surge protection devices in high-voltage environments. The other choices do not align with the standard operational range for transmission arrestors, as they either cover too low or excessively high voltage levels that would not be practical for common transmission systems.