Anuario Brasileiro do Cobre | Brazilian Copper Yearbook 2018

Anuário Brasileiro do Cobre Brazilian Copper Yearbook 2018 61 Workers security Risks management of assets Security and preservation of the environment Security of the company’s image Property security People security Increased investment in preventive maintenance reduces failures’ cost – and, per consequence, reduce the total cost of maintenance, resulting in preventive maintenance costs added to smaller failures’ costs. However, by surpassing the right point for investment in preventive maintenance, they will add few further benefits to failures’ costs reduction and will increase the total cost. In other words, from this point on, other strategies must be considered basically related to the assets’ renewal. cost maintenance level costs with preventive maintenance failure costs right point total cost Knowing and managing the lifetime of assets is essential to asset management and requires the application of technical and economic criteria to the decision-making process. Such decisions can increase or reduce profitability and the financial results of the company. USE EXPENSES REVENUES Lifetime AQUISITION MAINTENANCE CONCEPTION DISPOSAL PROJECT RENEWAL COSTS INVESTMENTS