The results of electrical endurance tests performed on ribbons cut from full-sized EPR cables are compared with those obtained by tests performed on cable models, having the same insulation as the full-sized cable. It is shown that the voltage endurance coefficient estimated on the basis of the short-term life test data has approximately the same value for cable models and ribbons, according to both inverse-power and exponential models. However, the surface roughness resulting from cutting the specimens can affect the result at high stresses.
Comparison of electrical aging tests on EPR-insulated minicables and ribbons from full-sized EPR cable / Mazzanti G.; Montanari G.C.; Motori A.; Anelli P.. - In: IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION. - ISSN 1070-9878. - STAMPA. - 2:6(1995), pp. 1095-1099. [10.1109/94.484311]
Comparison of electrical aging tests on EPR-insulated minicables and ribbons from full-sized EPR cable
Mazzanti G.;Montanari G. C.;Motori A.;Anelli P.
1995
Abstract
The results of electrical endurance tests performed on ribbons cut from full-sized EPR cables are compared with those obtained by tests performed on cable models, having the same insulation as the full-sized cable. It is shown that the voltage endurance coefficient estimated on the basis of the short-term life test data has approximately the same value for cable models and ribbons, according to both inverse-power and exponential models. However, the surface roughness resulting from cutting the specimens can affect the result at high stresses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.