| abstract |
According to the present invention, a prepreg is provided, which is a prepreg containing at least reinforcing fibers and a matrix resin, characterized in that a conductive portion is formed on one side or both sides of a fiber layer containing reinforcing fibers, and the fiber layer is The volume resistivity ρ (Ω·cm) in the thickness direction, the thickness t (cm) of the fiber layer, and the average interval L (cm) of the conductive portions arranged on the surface of the prepreg satisfy the following formula (1). t/ρ×1/L×100≧0.5... Formula (1). |