Can a high voltage line be energized with no electricity running through it?

Prepare for the ISA Utility Arborist Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The correct choice indicates that a high voltage line can be energized with no electricity running through it, assuming it is not connected to a load. This scenario can occur because a high voltage line can be in a state of being energized, which means it has the potential to carry electricity, even if currently no current is flowing through it.

In electrical terms, a line is considered “energized” when it has a voltage present. This means it can potentially cause a shock or other electrical hazard, despite having no actual power transmission at that moment. It is important to note that a load is the component that uses electricity; if no load is connected, the line can still maintain its voltage without current flow.

The other options either imply misconceptions about how electric systems work or inaccurately represent the concept of "being energized." A load is not necessary for a line to be considered energized; rather, it affects the current flow rather than the presence of voltage. Thus, understanding the distinction between voltage and current is key to grasping why the first choice is accurate in describing energized lines.

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