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Contents 1 Scope 2 Normative references 3 Terms and definitions 4 6 kV, 10 kV voltage grades 5 20kV voltage grade 6 35kV voltage grade 7 66kV voltage grade 8 110kV voltage grade 9 220 kV voltage grade 10 330 kV voltage grades 11 500 kV voltage grades Annex A (Normative) Test of using unit in consultation with the manufacturing unit |