Replaced
Applies to rigid HV gas-insulated transmission lines (GIL) in which the insulation is obtained, at least partly, by a non corrosive insulating gas, other than air at atmospheric pressure, for alternating current of rated voltages of 72,5 kV and above, and for service frequencies up to and including 60 Hz.
It is intended this technical report be used in situations where the provisions of IEC 60517 are not adequate.
WITHDRAWN
IEC TS 61640:1998 ED1
99.60
Withdrawal effective
Jul 26, 2011
WITHDRAWN
IEC 62271-204:2011 ED1