Based on properties and area of applications electrical engineering materials can be classified as below conductors semiconductors insulators magnetic material a classification chart of electrical engineering materials is shown in figure below conductorsconductors are the materials.
Electrical insulation materials classification.
For electrical and electronic system protection electrical insulation plays the most important role as a protector.
A much larger class of materials even though they may have lower bulk resistivity are still good enough to prevent significant current from flowing at normally used voltages and thus are employed as insulation for electrical.
An electrical insulating material insulating material is used to obstruct the flow of current.
Insulation is provided for safety purposes.
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There are different types of electrical insulation which are made of different.
Other materials or combination of materials not necessarily inorganic may be included in this class if by experience or tests they can be shown to be capable of.
Classification according to substances and materials.
Materials with temperature limits lower than class y are not generally used as insulation for electrical machines transformers switch gears etc.
But it can be used in equipments with low temperature limits.
It forms ionic bonds and the materials that have low conductivity and high resistivity are available in the form of solid liquid gaseous like the plastic used for plugs insulating oil used in transformer etc these materials have very high resistance so the flow of electric current requires an.
Electrical insulating materials are defined as materials which offer a very large resistance to flow of current.
The electrical insulation system is sometimes referred to as insulation class or thermal classification.
Classification of insulating materials.
Especially for an electrical conductor grounded system electrical machines like a transformer motor and generator and other electric appliances.
Materials used in the field of electrical engineering are called the electrical engineering materials.
The electrical insulation system for wires used in generators electric motors transformers and other wire wound electrical components is divided into different classes by temperature and temperature rise.
The insulating materials can be classified in the following two ways.
Some materials such as glass paper and teflon which have high resistivity are very good electrical insulators.
Class b insulation consists of materials or combinations of materials such as mica glass fibre asbestos etc with suitable bonding impregnating or coating substances beware a few older applications used asbestos.
The electrical insulation system for wires used in generators electric motors transformers and other wire wound electrical components is divided into different classes by temperature and temperature rise.
