VDE 0303-30 Insulating Materials for Electrical Purposes Standard Test for Solid Electrical Insulating Materials

EUROLAB laboratory provides testing and compliance service within the scope of VDE 0303-30 standard. These test methods cover procedures for determining the volume and surface resistivity of solid electrical insulating materials and calculations for determining the volume and surface resistivity.

Both volume resistivity and surface resistivity tests are affected by the following factors: the magnitude and duration of voltage application, the structure and geometry of the electrodes, and the temperature and humidity of the ambient atmosphere and samples during conditioning and measurement. Suggestions have been made for these factors.

The bulk resistivity can be used as an aid in the selection of insulation material for a particular application. The variation of resistance with temperature and humidity can be large and must be known when designing for operating conditions. Volume resistivity measurements are often used to check the uniformity of an insulating material, either due to processing or to detect conductive impurities that affect the quality of the material and are not easily detected by other means.

For the determination of the bulk resistivity, the test sample may have any applicable form that allows a third electrode to be used to guard against error due to surface effect. For samples with negligible surface leakage, shielding may be neglected when measuring volume resistance, provided that its omission can be shown to have negligible effect on the result.

EUROLAB assists manufacturers with VDE 0303-30 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.