Question

The insulators used in guy cables are __________.
1. Disc type insulator
2. Pin type insulators
3. Shackle insulator
4. Stay insulator

Answer 1

Correct Answer - Option 4 : Stay insulator

Stay insulator:

• ​Stay insulator is a porcelain stay insulator or ceramic guy strain insulator.
• Ceramic guy stain insulator is an insulator generally with elongated shape, and the porcelain stay insulator has two transverse holes or slots.
• Porcelain stay insulator is mainly used on the guy wire structure to balance the tension strength and also provide the insulating. The color is brown, gray, or white.
• For low voltage lines, the ceramic guy strain insulator is to be insulated from the ground at a height.
• The ceramic guy strain insulator used in the stay wire is called the stay insulator and is usually of porcelain and is so designed that in case of breakage of the insulator the guy-wire will not fall to the ground.

 

Functions of porcelain guy strain insulator: 

• Mounted at a height of at least 3 meters from ground level and provide insulation between stay clamps and transmission poles. 
• Primarily used to prevent stay wires from becoming energized from accidentally broken live wires. 
• Low voltage porcelain stay insulator or ceramic guy strain insulator, used in utility pole guy cables to prevent any voltage on the guy caused by an electrical fault on the pole from reaching the lower sections accessible to the public.