By sion932 
Have you ever thought that the seemingly “obediently” running appliances at home may actually hide “minor illnesses and pains”? Especially for old electrical appliances or equipment working in humid environments, the insulation performance is directly related to safety and lifespan. At this point, a small helper called a digital insulation meter can come in handy.
What is a digital insulation meter?
Who are the ‘behind the scenes’ drivers that affect insulation performance?
Environmental factors such as humidity, high temperature, dust, and corrosive gases can accelerate the aging of insulation materials and reduce their performance.
Material aging: Any material has a lifespan, and wires and insulation layers will naturally undergo physical and chemical changes over time, leading to a decrease in insulation properties.
Mechanical damage: compression, bending, wear, etc., can all damage the integrity of the insulation layer.
Overvoltage: An instantaneous voltage surge, such as lightning strikes or power system failures, can also cause insulation breakdown.
Do you want precise measurement? These tools are indispensable!
To conduct reliable insulation resistance measurements, you may need to:
Digital insulation meter: This is the core equipment that provides test voltage and displays measurement results.
Test wire: Ensure good wire quality and secure connection.
Insulated gloves and shoes: protect the safety of operators, especially during high-voltage equipment testing.
What is the connection between an insulation meter and something related?
The application field of insulation meters is very wide, almost related to all devices that require electricity:
Electrical equipment: generators, transformers, motors, cables, etc. Their insulation performance is crucial for ensuring safe operation.
Household appliances: refrigerators, washing machines, air conditioners, electric water heaters, etc. Regular testing can avoid the risk of electric leakage and shock.
Electronic products: printed circuit boards (PCBs), power modules, etc. The insulation performance affects the stability and lifespan of the products.
Communication equipment: base stations, optical cables, etc. have extremely high insulation requirements.
How to make insulation measurement “twice the result with half the effort”?
Choose the appropriate test voltage: Select the appropriate test voltage based on the rated voltage of the tested equipment. If it is too high, it may damage the equipment, and if it is too low, the measurement will be inaccurate.
Ensure a secure connection: The connection between the test line and the object being tested must be tight, as excessive contact resistance can also affect the reading.
Operating in a dry environment: Try to avoid measuring in damp or dusty environments for more accurate results.
Regular measurement: Develop the habit of regular testing, discover problems in a timely manner, and take preventive measures.
The professional equipment provided by HVHIPOT can help you complete the measurement task of insulation resistance more efficiently and accurately. Ensuring the insulation safety of equipment is of utmost importance in both power systems and industrial production.
In depth understanding: Mastering core technologies
Do you want to learn more about the measurement principles, influencing factors, and practical applications of insulation resistance? HVHIPOT has rich industry experience and a professional technical team to provide you with the most authoritative guidance. If you want to improve the security of your device, you may want to delve deeper into it.
Frequently Asked Questions (FAQ)
Q1: Is it better for the reading of the digital insulation meter to be lower? A1: No, the lower the insulation resistance reading, the worse the insulation performance and the higher the risk of leakage. We hope the higher the reading, the better.
Q2: Under what circumstances is a digital insulation meter needed? A2: It is necessary to use the equipment when there is suspicion of leakage, aging, moisture, or when installing, maintaining, or repairing the equipment.
Q3: How often should I measure insulation resistance? A3: This depends on the usage environment and importance of the equipment. It is generally recommended to conduct regular (such as annual) inspections, and high-risk or critical equipment can be increased in frequency.
Q4: Will the digital insulation meter cause damage to my equipment? A4: As long as the correct test voltage is selected according to the instructions and the equipment itself does not have serious faults, it generally will not cause damage.
Q5: Can a digital insulation meter measure other parameters besides insulation resistance? A5: Most digital insulation meters mainly measure insulation resistance, but some advanced models may integrate other measurement functions. Please refer to the product manual for details.