Electrical Insulator

All materials used in mechanics and electricity can be divided in to principal groups: those which can conduct the electrical current and those which don’t. Basically we use different metals as conductors, that’s why all the wires are actually metal, and the best conducting material is silver. But what we need arematerials which do not conduct the electrical current. What for? To coat and support wires and make the current flow exactly in the given direction through given conductor. In this case, electrical insulator, which is also called dielectric, will be the best option.

Electrically insulating materials are special compositions which are used for isolation of elements or parts of electrical equipment and technical constructions. Their electrical resistance is much high than that of conductors, and among the most characteristic features of electric insulators we can name dielectric strength and ability to function even in the most aggressive environments. Of course, this is not the only reason, why electrical insulators are so vital, especially in the applications with high voltage. One of the main advantages of the use of non-conducting materials is the protection from electric shocks and sparks.

So, the definition of the electrical insulator is a material which does not conduct the electrical current. All the electrical insulators can be classified according to two criteria. Firstly, according to their aggregative state, we can distinguish solid, liquid and gaseous dielectrics. Secondly, according to chemical composition, we mark out organic and non-organic electrical insulators.

Historically, glass was the first non-conducting material to be used. Among other dielectrics we can find mica, porcelain, ceramics and rubber. All thesematerials have different characteristics and can be used in different applications.

If you need a high dielectric isolation for your electric devices and other applications, you came to the right place. We will help you to pick up the most appropriate material of the most effective configurations in order to satisfy all your needs.