Specifications for particular types of winding wires - Part 56: Solderable fully insulated (FIW) zero-defect polyurethane enamelled round copper wire, class 180
- Clause 1: revision of the scope, reducing the number of grades of FIW from 3 through 9 to 4, 6 and 8 only;
- Clause 1: revision of the scope, reducing the wire diameter range from (0,040 to 1,600) mm to (0,090 to 0,900) mm;
- addition of an informative annex for abrasion resistance requirements for grades FIW 3 to 9.
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