NF C31-681:2000 Specifications for particular types of winding wires - Part 31 : glass-fibre wound resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 180.
2000NF C31-681:2000 Specifications for particular types of winding wires - Part 31 : glass-fibre wound resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 180.
1998NF C31-681:1998 SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES. PART 31 : GLASS-FIBRE WOUND, POLYESTER OR POLYESTERIMIDE VARNISH-TREATED, BARE OR ENAMELLED RECTANGULAR COPPER WIRE, TEMPERATURE INDEX 180. (EUROPEAN STANDARD EN 60 317-31).