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Overhead Power Lines Quiz

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Questions and Answers

What is the main function of insulators in overhead lines?

To insulate the conductors from the ground (correct)

To provide support to the conductors

To provide support to the cross arms

To carry electric power from the sending end station to the receiving end station

What property should the conductor material used for transmission and distribution of electric power have?

High electrical conductivity and low specific gravity

Low electrical conductivity and low specific gravity

High electrical conductivity and high tensile strength (correct)

High specific gravity and low cost

What is the purpose of cross arms in overhead lines?

To insulate the conductors from the ground

To provide support to the conductors

To carry electric power from the sending end station to the receiving end station

To provide support to the insulators (correct)

What property should the conductor material used for transmission and distribution of electric power NOT have?

<p>High resistance to electrical conductivity</p> Signup and view all the answers

What is the purpose of phase plates in overhead lines?

<p>To indicate the phase of the conductor</p> Signup and view all the answers

Study Notes

Overhead Lines

Insulators in overhead lines are used to support and separate the conductors, preventing electrical shock and short circuits.

Conductor Material Properties

The conductor material used for transmission and distribution of electric power should have high conductivity and low resistance to minimize energy loss.
The conductor material used for transmission and distribution of electric power should NOT have high reactivity or corrode easily to ensure long-term reliability.

Cross Arms and Phase Plates

Cross arms in overhead lines are used to support and maintain the spacing of the conductors, providing mechanical strength and stability to the transmission line.
Phase plates in overhead lines are used to identify the phase of the conductor, ensuring correct connections and avoiding phase mismatches.

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Description

Test your knowledge of overhead power lines with this quiz on the main components of overhead lines. Identify and understand the essential elements such as conductors, supports, insulators, and cross arms that make up these crucial structures for electrical transmission.