標準號：IEC 60034-18-31-2012
中文標準名稱：旋轉電機.第18-31部分:絕緣系統功能性評定.成型繞組試驗規程.電機絕緣系統熱評定和分級
英文標準名稱：Rotating electrical machines. Part 18-31: Functional evaluation of insulation systems. Test procedures for form-wound windings. Thermal evaluation and classification of insulation systems used in rotating machines
標準類型：K20
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：K20
國際標準分類號：29.080.30;29.160.01;29.160
引用標準：IEC 60034-15-2009;IEC 60034-18-1-2010;IEC 60034-18-42;IEC 60060-1;IEC 60085;IEC 60216-1;IEC 60216-4-1;IEC 60216-5;IEC 60505
適用范圍：This part of IEC 60034 describes thermal endurance test procedures for classification of insulation systems used in a.c. or d.c. rotating electrical machines with indirect cooling andform-wound windings.The test performance of a candidate insulation system is compared to the test performance of a reference insulation system with proven service experience.The test procedures described in IEC 60034-18-31 are intended to compare the thermal endurance performance of the mainwall insulation between conductor(s) and ground and, where required by the design of the coil or bar, the insulation between the turns.The test is not intended to simulate the in-service mechanical stresses experienced by the endwinding bracing or support materials. It does not include the evaluation of thermomechanicaldeterioration by expansion and contraction of insulation during temperature cycling.IEC 60034-18-1 describes general testing principles applicable to thermal endurance testing of insulation systems used in rotating electrical machines. The principles of IEC 60034-18-1 are followed unless otherwise stated in IEC60034-18-31.The thermal class for the insulation system refers to its maximum allowed (“hot spot”) temperature. The average temperature measured in service should not exceed the allowed temperature rise according to IEC 60034-1.