WHAT IS A STAY INSULATOR

What is a Stay Insulator?

Stay insulators are a form of insulators that are utilized on the stay path. They are modeled to supply insulation in case the wire cuts and falls on the ground. The stay insulator will guarantee that the wires don't contact the ground.

Knowing the performance of a stay insulator is important. There are some holes in the body of the stay insulator. The two pieces guy grips go through from the body in the opposite path. The guy grip will wrap the main wire to create the connection. The connection path isn't confirmed. For different types, there are various ways to connect, and any manufacturer can make the insulator fittings according to the customers' requirements and application.

The importance of the stay insulator is commonly witnessed once the poles fall on the ground or when the main wires accidentally cut because of the excess mechanical load. It is among the most suitable insulators for overhead transmission lines that you should install. The stay type insulator is normally installed in the middle of the stay path. In the case the pole fails, the insulator will ensure that the lower part of the system will have no voltage.

How Does a Stay Insulator Work?

A usual stay insulator has two holes that are placed on opposite sides of each other. Pieces of stay wires enter within one hole and exit through the other. Guy wires are employed to support the grip and ensure that there is a complete connection between the stay insulator and stay wire.

So, what happens when the wires find themselves on the ground? Let's say the tower or pole fails and everything breaks. The wires will be completely insulated and No voltage will go to the earth.

A dead-end or anchor tower or pole is employed where a straight sector of line ends or angles off in another direction. These poles should tolerate the lateral (horizontal) tension of the long straight sector of wire. In order to withstand this lateral load, some strain insulators are used. Shackle insulators are also employed as strain insulators for low voltage lines (less than 11 kV). Although for high voltage transmission systems, strings of cap-and-pin or disc insulators are employed, joined with the cross-arm horizontally. Once the tension load in lines is extremely high, two or more strings are employed in a parallel configuration (such as a long river span).

The stays are to be insulated from the ground at a certain height for low voltage lines. The insulator applied in the stay wire is known as the stay insulator and is commonly made of porcelain and is so modeled that in case of cut-off of the insulator, the main wire will not fall to the ground.