What is the safety measure required if the spring switch has been spiked?

When a spring switch has been spiked, it is essential to ensure that it is protected. This means that appropriate measures should be taken to prevent unauthorized access or usage of the switch to maintain safety. Spiking a switch typically indicates that it is intentionally being held in a position, which might compromise safety if the switch is not properly secured or if others are not made aware that it is not operational. Adequate protection measures can include physical barriers, signage to inform personnel that the switch should not be used, and vigilance in monitoring the area to avoid accidents.

This proactive approach helps maintain safety for all railroad operations, ensuring that everyone is aware of the potential hazards associated with the spiked switch.