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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	  |