标准号:IS 1180 Pt.2-1989
发布日期:1990/4/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:This standard (Part 2) specifies the require-ments and tests for oil immersed, naturally air-cooled, three-phase, double-wound outdoor distribution transformers of sealed tank construction up to and including 100 kVA, for use on nominal system voltages up to and including 11 kV.