The main function of the shield wire is:

Prepare for the Southeast Lineman Training Center Exam with quizzes and detailed explanations. Enhance your skills and knowledge through interactive tests. Get exam-ready!

Multiple Choice

The main function of the shield wire is:

Lightning protection for overhead lines is achieved with a shield wire placed above the energized phase conductors. Its main role is to intercept lightning strikes and provide a low-impedance path to ground, so the surge is diverted away from the phase conductors and less likely to cause damage or outages. This shield wire is grounded at intervals and is not part of normal load-carrying current, insulation, or mechanical support for the conductors. In some systems, the shield wire may carry communications cables or fiber optics (OPGW), but its primary purpose remains protecting the energized lines from lightning.

Lightning protection for overhead lines is achieved with a shield wire placed above the energized phase conductors. Its main role is to intercept lightning strikes and provide a low-impedance path to ground, so the surge is diverted away from the phase conductors and less likely to cause damage or outages. This shield wire is grounded at intervals and is not part of normal load-carrying current, insulation, or mechanical support for the conductors. In some systems, the shield wire may carry communications cables or fiber optics (OPGW), but its primary purpose remains protecting the energized lines from lightning.

More practice questions