Accelerated aging of extruded dielectric power cables. II. Life testing of 15 kV XLPE-insulated cables

Author

Bernstein, Bruce S. ; Thue, William A. ; Walton, Mark D. ; Smith, John T., III

Author_Institution

EPRI, Washington, DC, USA

fYear

1991

fDate

22-27 Sep 1991

Firstpage

129

Lastpage

134

Abstract

For pt.I see ibid., p.122-8 (1991). Attempts to successfully use accelerated aging tests to quantify the life of medium voltage power cables in service have been elusive. Preliminary results are described in which 15 kV cross-linked polyethylene (XLPE) cables were subjected to accelerated aging tests under a variety of controlled voltage stress and thermal load cycle conditions, with loss of life being calculated for each set of conditions in terms of the geometric mean time to failure (GMTF). Voltage stress was applied to thin wall (0.76 mm) covered wires in a water bath of controlled nature in the core. Crosslinked polyethylene (XLPE), high molecular weight polyethylene (HMWPE), and ethylene-propylene rubber (EPR) insulations were studied

Keywords

ageing; cable insulation; cable testing; insulation testing; life testing; organic insulating materials; polymers; power cables; 15 kV; XLPE-insulated cables; accelerated aging tests; cross-linked polyethylene; ethylene-propylene rubber; extruded dielectric power cables; geometric mean time to failure; high molecular weight polyethylene; life tests; loss of life; medium voltage power cables; thermal load cycle; thin wall covered wires; voltage stress; water bath; Accelerated aging; Dielectrics; Life testing; Medium voltage; Polyethylene; Power cables; Stress control; Thermal loading; Thermal stresses; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1991., Proceedings of the 1991 IEEE Power Engineering Society

Conference_Location

Dallas, TX

Print_ISBN

0-7803-0219-2

Type

conf

DOI

10.1109/TDC.1991.169497

Filename

169497