The Rubber Group makes power grid parts with a special focus on electricity transmission and generation. Molded rubber is electrically insulating but it also provides vibration isolation and protection. Using injection, compression, and transfer molding, The Rubber Group molds elastomers that are vital for electrical safety and the reliable operation of power systems.
Keep reading to learn more and contact us for power grid parts made of molded rubber.
Insulator Components
Rubber parts for insulators need to provide reliable electrical insulation, UV resistance, and hydrophobicity. The Rubber Group can help you to select materials for insulator components that will maintain their integrity in high‑voltage environments.
Bushing and Termination Seals
Molded rubber seals for transformer bushings, cable terminations, and switchgear connections need to prevent moisture ingress and preserve dielectric strength. These power grid parts provide an electrical and physical barrier, allowing current to pass through while preventing leaks.
Transformer Components
Transformer components include custom gaskets and expansion membranes that contain transformer oil and seal out the environment. Expansion membranes can accommodate some degree of movement from temperature-related expansion and contraction.
Vibration Dampening Systems
Custom‑formulated dampers reduce mechanical vibration and corona effects, extending the lifespan of transmission lines and substation equipment. In transformers, the corona effect ionizes the surrounding air or insulation fluid, causing a partial discharge of electricity
Line Hardware Protection
Weather‑resistant rubber shields protect transmission line hardware from environmental conditions. These power grid parts are made of elastomers that resist sunlight (i.e., ultraviolet or UV rays), ozone in the air, and precipitation such as rain and snow.
Switchgear and Cabinet Seals
Environmental sealing systems for junction boxes and control cabinets must also resist UV degradation and the ingress of moisture. These types of outdoor enclosures are also subject to a wide range of temperatures, which is why silicones are often used.
Underground Distribution Components
The Rubber Group also molds elastomeric connectors, load‑break elbows, and junction points that are designed for decades of below-ground service. Underground distribution components are used in commercial, industrial, and residential settings, but also under bodies of water.
Smart Grid Equipment Seals
Smart grid equipment seals are precision‑molded and designed to protect sensors, meters, and communication devices in outdoor environments. They resist moisture, dust, vibration and a wide range of temperatures. Some include tamper-evident features to help prevent unauthorized access to electrical transmission and distribution systems.
Arrester and Cutout Components
The Rubber Group also makes elastomeric parts for surge arresters and fuse cutouts that are designed to withstand electrical stress and environmental extremes. Rubber surge arrestors typically use a silicone rubber housing (instead of a porcelain one) to divert surges to ground.
Secondary Network Components
Power grid parts also include custom rubber components that need to perform reliably under various conditions. Secondary network components include parts for underground cables and multiple transformers that form a parallel, redundant grid for reliable power deliver.
Do you need molded rubber parts for the power grid? Contact The Rubber Group.