Final answer:
Circuit breakers are used in power-distribution systems to interrupt excessive currents and protect against thermal hazards. The method of removing power from the third rail may depend on the specific design and system requirements.
Step-by-step explanation:
In the context of your question, it seems you are referring to a scenario involving power distribution systems, specifically regarding the removal of power from the third rail in rail systems. Circuit breakers are indeed used in power-distribution systems to interrupt excessive currents and protect against thermal hazards. However, it is important to note that the specific method of removing power from the third rail may vary depending on the design and system requirements.