Final answer:
The shielded wire on the tops of distribution poles is connected to the substation grounding system, making the statement true.
Step-by-step explanation:
In a circuit diagram, we can assume that the voltage is the same at every point in a given wire.
The safety measure of grounding, which refers to connecting a conductor to the earth with a good conductor, is commonly used in electrical systems. When a shielded or static wire is used on the tops of distribution poles, it is connected to the substation grounding system.
Therefore, the statement is true.