INSULATING RESIN COMPOSITION EXCELLENT IN HEAT RESISTANCE AND WEATHER RESISTANCE, AND INSULATED WIRE

摘要

PROBLEM TO BE SOLVED: To obtain an insulating resin composition that has a high level of flame retardancy required for an insulated wire and has excellent heat resistance and excellent weather resistance, and provide an insulated wire coated with the insulating resin composition used as a coating material. SOLUTION: The insulating resin composition comprises, based on 100 pts.wt. (A) resin component comprising as the main component a polyolefin resin and/or an ethylene-based copolymer, 60-300 pts.wt. metal hydrate surface-treated with a crosslinkable silane coupling agent, and further comprises 1-8 pts.wt. hindered phenol antioxidant, 0.6-8 pts.wt. thioether antioxidant represented by formula (1) (wherein R<1> denotes an alkyl group), 0.4-8 pts.wt. benzophenone UV absorber and/or benzotriazole UV absorber and 0.8-5 pts.wt. hindered amine photostabilizer.