
Transformer Insulation Pressboard Insulation Paper Board Electrical Insulation Presspan. High Voltage Resistance: Resistant to voltage under 110KV with breakdown voltage up to 39.8 KV/mm. Superior Mechanical Strength: Better mechanical and insulation strength compared to laminated wood. Large Size Capability: Available in large sizes up to 3000*2000mm for transformer applications. High Quality Material: Made of 100% pulp vitriol conifer wood, titled GOOD QUALITY by Ministry. ISO9001 Certified: Manufactured under international standards with ISO9001 certification. Wide Application Range: Suitable for transformers, motors, switches, and medical equipment. Thermal Rating H 180: Designed for high temperature environments with H 180 thermal rating. Smooth Surface Finish: Features a flat and smooth surface with good tenacity.