Long-term electrical performance and life model fitting of XLPE and EPR insulated cables

Journal Article · Tue Mar 31 23:00:00 EST 1992 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.127060· OSTI ID:5402492

Cacciari, M; Montanari, G C; Simoni, L; Cavallini, A; Motori, A ^[1]

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1. Inst. di Elettrotecnica Industriale and Dept. di Chimica Applicata e Scienza dei Materiali, Faculty of Engineering, Univ. of Bologna, Viale Risorgimento 2 40136 Bologna (IT)

In the paper the results of life tests performed on XLPE and EPR cable models are presented and discussed. The performances of the two insulating materials when subjected to electrical stress are compared on the basis of characteristic parameters derived by the best-fitting life models. It is found that while EPR is well described by linear models, XLPE data fit curvilinear life models, showing tendency to electrical threshold. Hence the fundamental parameter for XLPE characterization is the threshold value, while the voltage endurance coefficient should be used to characterize EPR. Considerations on test and data-processing methodologies, as well as insulation design, point out the criteria to be used for the two models.

• OSTI ID: 5402492
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 7:2; ISSN 0885-8977; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240301* -- Power Transmission Lines & Cables-- Power Cables-- (1990-)
CABLES
COMPARATIVE EVALUATIONS
CONDUCTOR DEVICES
DESIGN
ELECTRIC CABLES
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
EQUIPMENT
EVALUATION
MATERIALS
POWER TRANSMISSION
SERVICE LIFE
SIMULATION
STRESSES
TESTING