In view of the above, it is worth examining what has happened to the price and quality of insulators over past decades. Moreover, because of their number and strategic importance, they are also a component requiring careful inspection and potentially high remedial maintenance expenses. While insulators usually account for only some 5 to 10 percent of total building costs for an overhead line or substation, problems with insulators are one of the leading causes of unplanned outages. Insulators of inferior production quality can result in high downstream replacement costs and costly unplanned outages.Īn insulator is a strategic component governing the performance of an expensive asset. The real value of an insulator lies in how well these downstream life cycle costs can be controlled within acceptable limits. what you get in return) which can be many times higher. price) can prove relatively small compared to total lifetime cost (i.e. In the case of insulators, acquisition cost (i.e. Warren Buffet once remarked, “price is what you pay for something value is what you get in return”. If higher price is a better predictor of satisfactory long-term performance, this will be good for both seller and buyer. The acquisition cost of an insulator is in fact far less important than is the performance and service life it will offer. In the world of electrical insulators, however, this paradigm does not necessarily hold true. There is a general assumption that a higher price is always good for the seller while a lower price is good for the buyer.
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