Số hiệu tiêu chuẩn
NF C26-310-21*NF EN 61857-21
Tên tiêu chuẩn
Electrical insulation systems - Procedures for thermal evaluation - Part 21 : specific requirements for general-purpose models - Wire-wound applications
Ngày phát hành
2005-02-01
Tiêu chuẩn tương đương
EN 61857-21:2004,IDT * CEI 61857-21:2004,IDT
Thay thế cho
NF EN 61857-21:199905 (C26-310-21) * NF EN 61857-23:200305 (C26-310-23)
Thay thế bằng
NF EN 61857-21:200912 (C26-310-21)
Lịch sử ban hành
NF EN 61857-21:200912 (C26-310-21)*NF C26-310-21*NF EN 61857-21*NF EN 61857-21:199905 (C26-310-21)*NF EN 61857-23:200305 (C26-310-23)
Từ khóa
Coils * Product specification * Acceptance * Training * Qualifications * Dielectric-strength tests * Batching * Electrical insulation * Electrical equipment * Approval * Specifications * Humidity * Legalization