Life Estimation of XLPE Cables in consideration of Oxidative Degradation

securitization of mortality risks in life annuities

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

High Frequency Characteristics of Medium Voltage XLPE Power Cables

The response of a cable can be used to analyze the variation of the material characteristics along its length. For diagnosis of possible ageing, it is necessary to know how cable design, material properties and cable insulation ageing affects the wave propagation. A cable model has therefore been worked out based upon the high frequency properties of the cable insulation and conductor systems. ...

Using the ‘Universal Relaxation Law’ to characterise water tree degradation in XLPE insulated cables

In order to access the severity of degradation in a water tree affected cable, it is necessary to obtain a physical representation of the insulation. This is especially the case when trying to determine the risk of failure of the cable, or the remaining life, which is dependant on the length of the longest water tree in the insulation. Generally, there has not been a large effort found in publi...

Short Literature Survey on the Reliability of Ehv Xlpe Cables

An Accelerated Wet Ageing Test on Meduim Voltage Xlpe Cables

The failure of medium voltage (MV) cables in North Queensland has led Ergon Energy to consider the relative economics of refurbishment or replacement. In order to provide data to inform decision making, an accelerated ageing program has been designed to investigate the ageing of new, field aged, and refurbished cables. This paper describes the considerations affecting the design of the ageing e...