Insulators Types

[Remember] Which type of insulator is most commonly used in high voltage transmission lines?

• Glass
• Ceramic
• Polymer
• Porcelain

[Remember] Which of the following insulators is suitable for heavy polluted areas?

• Glass
• Ceramic
• Polymer
• Porcelain

[Understand] Why are polymer insulators becoming increasingly popular?

• They are cheaper than other types of insulators
• They are lighter and more flexible than other types of insulators
• They are more resistant to pollution and vandalism than other types
• They are more efficient at transmitting electrical energy than other types

[Understand] What is the main disadvantage of using glass insulators?

• They are expensive
• They are heavy and brittle
• They are prone to cracking in cold weather
• They are less efficient at transmitting electrical energy than other types

[Apply] A transmission line is located in a heavily polluted area. What type of insulator would be the best choice for this line?

• Glass
• Ceramic
• Polymer
• Porcelain

[Apply] A high voltage transmission line requires insulators that can withstand high mechanical stresses. What type of insulator would be the best choice for this line?

• Glass
• Ceramic
• Polymer
• Porcelain