Electrical Silica Powder is a category of silica powder mainly used in medium and high-voltage electrical insulation fields. Its focus is different from that of Electronic Silica Powder: although high purity is also required, it focuses more on the product's electrical insulation strength, arc resistance, comparative tracking index (CTI), and long-term stability under high electric fields.
This type of product is typically used in manufacturing high-voltage switchgear, transformers, insulators, instrument transformers, and other electrical insulation components. In these applications, silica powder is added as a filler to epoxy resin, unsaturated polyester, or silicone rubber, serving multiple roles: first, to enhance mechanical strength, giving large insulation components sufficient rigidity; second, to improve thermal conductivity, helping to dissipate heat generated during operation; third, to adjust the coefficient of thermal expansion, avoiding cracking with metal inserts due to thermal expansion and contraction; fourth, and most importantly, to improve the electrical insulation performance of the material. High-quality Electrical Silica Powder can significantly improve the breakdown voltage, resistance to surface discharge, and arc resistance of cast or molded insulation parts, ensuring the safe operation of power equipment under overvoltage conditions such as lightning strikes and switching surges. Its particle size selection range is wide, from a few hundred mesh to over a thousand mesh, depending on the specific insulation structure design and process method. Electrical Silica Powder is the unsung hero ensuring the security and reliable operation of the national power transmission and distribution network.
Hot Tags: electrical silica powder, China electrical silica powder manufacturers, suppliers, factory, Electrical Grade Active Silica Powder, Electrical Grade Silica Powder, Electronic Silica Powder, high purity silicon powder, Ultra fine Active Silica Powder, Ultrafine Silica Powder
