Probability techniques application for economic operation of power cables

High costs and shortages of many raw materials W e necessitated renewed analysis of utilization of many engineering material and products. Also, recent substantial increases in costs to manufacture high quality engineering products have motivated the engineering community to seek more sophisticated techniques to analyze problems. These techniques are designed to render solutions which account for a variety of contingencies in a realistic way. In particular, the tremendous capital investment in electric power systems is motivated to maximize the utilization of all power system components. This paper focuses on the efficient use of insulated power cables for reliable transmission and distribution of electrical energy. Typically, power cables are subject to loading in a manner which is only partially predictable. Both the conductor voltage to ground and loading current may be viewed as stochastic in nature. It is desirable to study cable loading in stochastic terms in order to realistically establish a rating for the conductor. Such study would lead to more economic cable use.