The quest for safer, more resilient, and more compact electrical infrastructure is driving innovation in medium-voltage distribution. Leading this charge is Solid Insulated Switchgear (SIS), a groundbreaking technology that replaces the pressurized gas compartments of traditional switchgear with robust, solid insulation. This design paradigm shift offers profound benefits for utilities and industries operating in space-constrained or sensitive environments.

The primary advantage of Solid Insulated Switchgear is its unparalleled safety. Unlike Air-Insulated (AIS) or Gas-Insulated (GIS) systems, SIS encapsulates all live primary components—such as busbars, switches, and cable connections—in a solid layer of epoxy resin. This hermetically sealed design completely eliminates exposure to live parts, significantly reducing the risk of electrical flashover, animal intrusion, and accidents caused by human error during routine inspection. This makes SIS ideal for public spaces, densely populated urban areas, and harsh industrial settings.

Furthermore, SIS offers a remarkably compact footprint. The excellent dielectric properties of the solid insulation allow for much tighter clearance between phases compared to AIS. While not as miniaturized as GIS, SIS provides an optimal balance of size and simplicity, resulting in a space-saving solution that is easier to install and maintain. The solid insulation is also impervious to environmental conditions like humidity, dust, and salt spray, ensuring long-term reliability and a maintenance-free operational life for the insulated assembly.

At Degatech Electric, we are at the forefront of this safer, more robust technology. Our Solid Insulated Switchgear is engineered for maximum personnel safety and operational uptime. The maintenance-free solid insulated switchgear design from Degatech Electric provides a reliable and resilient foundation for your power distribution network, safeguarding both your assets and your personnel.

To discover how SIS can enhance the safety and efficiency of your network, explore the design features of our compact solid insulated switchgear on our product page.