This Final Draft International Standard is an up to 6 weeks' pre-release of the official publication. It is available for sale during its voting period: 2020-02-21 to 2020-04-03. By purchasing this FDIS now, you will automatically receive, in addition, the final publication. IEC 60317-0-4:2020 specifies general requirements of glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire.The range of nominal conductor dimensions is given in 4.1 and the relevant specification sheet. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of dimensional requirements for grade 1 enamelled wire in Table 4; b) addition of dielectric breakdown requirements for grade 1 enamelled wire in Table 7. c) addition of requirement for the adhesion test in 8.2.1 and 8.2.2.