| abstract |
A halogen-free flame-retardant insulated wire having high hot water resistance and having a high balance of insulation resistance, flame retardancy, wear resistance, and heat deformation resistance. An insulated wire having a conductor and a halogen-free insulating layer covering the conductor, the insulating layer comprising polyphenylene in 40 to 65 parts by mass of high-density polyethylene having a melt flow rate of 0.60 or less. 100 to 100 parts by mass of a resin component obtained by finely dispersing 25 to 30 parts by mass of an ether resin and 10 to 30 parts by mass of a styrene elastomer, and 5 to 50% by mass of a phosphinic acid metal salt based on the resin component, 6 It has an outer layer made of a crosslinked product of a resin composition containing ˜25% by mass of a phosphate ester and 1 to 10% by mass of a polyfunctional monomer, and an inner layer made of crosslinked polyethylene, and the thickness of the inner layer is A halogen-free flame-retardant insulated wire that is 10 to 85% of the total thickness of the outer layer. [Selection figure] None |