H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/82
H01B 7/02 (2006.01) H01B 3/30 (2006.01) H01B 3/42 (2006.01) H01B 7/28 (2006.01)
Patent
CA 1323674
ABSTRACT An electrical wire comprises an elongate electri- cal conductor and electrical insulation comprising: (a) a layer of a crosslinked blend of an aromatic polymer and a polymer containing aliphatic moieties; and (b) a tracking control layer located on top of, and/or beneath layer (a). The aromatic/aliphatic polymer layer may, for example, comprise a polyaryletherimide or polysulphone blended with an aliphatic or aliphatic/aromatic poly- amide e.g. nylon 12. The tracking control layer may be inorganic e.g. silica, or organic e.g. a fluoropolymer. The wire insulation combines good electrical and mecha- nical properties with high resistance to wet or dry tracking.
571478
Day Stephen
Penneck Richard John
Fetherstonhaugh & Co.
Raychem Limited
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