Insulation resistance is the resistance value of an insulator and represents its insulating property. Materials that conduct electricity easily, such as copper and aluminum, are called conductors that have very low resistance values. On the other hand, materials such as rubber and glass which are difficult to conduct electricity, are called insulators (non-conductors) that have extremely high resistance values.
As for electrical equipment and electronic circuits, electricity flows through the electronic circuits, but in unnecessary areas, electricity must be stopped flowing. Not only will the circuit not work as intended, but there is a risk of short circuits, electrical leakage, and electric shock. Therefore, proper insulation must be provided by using insulators.
The insulator measures insulation resistance to check for insulation defects, that is called insulation resistance measurement. In this method, a dedicated megger insulation tester is used because the resistance value to be measured is very high.
Insulation testers are used by switching between ranges for low and high voltages. With an insulation resistance tester, a high voltage is applied to the object to be measured, and the resistance is determined from the flowing current.
Information on related articles in Technical Knowledge
- What is a Power Supply? Types and Applications
- What is a Power Supply? (Basic Knowledge)
- Safety and Usage of High Voltage Power Supply
- What is DC power supply? (Basic Knowledge)
- What is a Bipolar Power Supply? (Basic Knowledge)
- What is an Electronic Load? (Basic Knowledge)
- What is an AC Power Source (Basic Knowledge)
- Linear vs. Switching Power Supplies: Key Differences Explained
- Types of X-ray tubes and high-voltage power supplies
- High Voltage Measurement Method
- How to choose the DC power supply? Explanation of the points.
- Difference between DC power and AC power
- For New Electronics Engineers, How to Use the Power Supply Safely
- How to use DC Power Supply and remote sensing correctly and safely
- How to Select a High Voltage Power Supply for Analyzers
- How to Use the Amplifier and Its Notes
- Method of Generating Direct Current (DC) Power