Electrical plastics encompass polymer materials selected and formulated for defined dielectric, insulation, or arc-resistance properties in aerospace electrical systems, covering materials such as polyimide, PEEK, and epoxy-based compounds used in wire and cable insulation, connector housings, printed circuit board substrates, and switchgear components, characterised by controlled CTI ratings, UL94 flammability classification, and low outgassing performance to ASTM E595.
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