Why Use Polymer Insulators?

Do you know what a polymer insulator is? Here, we will teach you. This material hinders the passage of electrical charges. This means that the electrons are tightly bound to the nucleus, which is why this compound does not conduct easily.

Although no material can be 100% perfectly isolated, there are several compounds that can help slow down the flame in the event of a short circuit. Are you interested in this topic and would like to know more about polymer insulators? Then, read on in our article.

What are polymer insulators?

Are polymers insulators? Yes! Due to the low content of subatomic particles, this polymer is a material that resists the flow of electrons. This makes it difficult for electrical charges to be transported through the body.

In an adiabatic polymer, the valence electrons are attached to the atoms, while the dielectric strength in the ground layer is attached to the insulating elements. In effect, we can say that electrical insulators are essentially the opposite of electrical conductors.

These electrical insulators are used extensively in the electrical and electronic field, as bioprotective devices or as components for isolating electricity in electrical circuits.

36kV Polymer Station Post Insulator

Why use polymer insulators?

The polymer insulator is weather resistant, weather self-cleaning and only needs to be inspected for dirt once every 4-5 years, with short maintenance and outage times. Due to the higher tensile strength of the core rods, the overall weight of the polymer insulators is very light. They weigh only 10% to 20% of the weight of a string of porcelain insulators of the same voltage class. Their length can be shortened by about 10% at the same voltage level, which can greatly reduce the labour intensity of workers in transport and field work.

polymer insulators have been introduced as a good alternative to ceramic and glass insulators. After almost 30 years of introducing the first types of polymer insulators with design improvements and material consumption, they have become well known and suitable for use in HV.

 66kV Polymer Line Post Insulator

As we said before, the main specification of polymer insulators is that they have fewer electrons and are able to stop their flow, thus avoiding the chance of thermal shocks. Some of the materials in this category are

Plastics (resins).

Silicones ;

Rubber ;

Oil ;

Glass (ceramics).

Pure deionised water.

The main reason for the use of these materials as insulators is the high resistance to load flow. These electrical properties of polymers make them ideal for wrapping copper wires, whether in dryer cables or high voltage towers.

What makes an electrical insulating material a good electrical conductor is the large number of free electrons it presents at room temperature. With insulating elements, the opposite is true, as it has almost no free electrons in the local climate.

To illustrate this point more clearly, take wood as an example. A piece of this material can only be considered insulated up to a certain voltage level. If it is raised to other levels, the wood is free to become an electrical conductor.

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