FRP (Fiberglass Reinforced Plastic) dog bone profiles are specialized structural and insulating components shaped like a bone, widely used in electrical equipment. They are manufactured via pultrusion using glass fiber reinforcement and synthetic resin matrices like epoxy, polyester, or vinyl ester.
Key Properties
Electrical Insulation: They offer high dielectric strength and low dielectric loss, preventing electrical leakage in high-voltage environments.
Thermal Resistance: Available in thermal classes like Class F and H, performing stably under high operational temperatures.
Chemical & Moisture Inertness: According to ACC Insulations, ?They do not absorb moisture, do not corrode, do not creep.
Mechanical Strength: They provide robust load-bearing support in compact structural spaces.
Common Applications
Dry-Type Transformers: Used extensively as coil winding supports and spacers.
Switchgear & Reactors: Applied in high-voltage power modules, power capacitors, and disconnectors.
Rail & Induction Systems: Utilized as rail insulators and induction coil spacers.
