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Material: epoxy resin and glass fiber cloth pressed together

Vertical laminar bending strength: under normal conditions, vertical laminar bending strength ≥340MPa

Parallel layer impact strength: ≥230KJ/m

Insulation resistance after immersion in water: ≥5.0×10^8Ω

Vertical layer to the electrical strength (in 90 ± 2 ℃ transformer oil, plate thickness of 1mm): ≥ 14.2MV/m

Parallel layer to the breakdown voltage (in 90 ± 2 ℃ transformer oil): ≥ 40KV

Relative dielectric constant (50Hz and 1MHz): ≤5.5

Dielectric loss factor (50Hz and 1MHz): ≤0.04

Water absorption (D-24/23, plate thickness 1.6mm): ≤19mg

Density: 1.70-1. 90g/cm³

Flammability: FV0