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Multicriteria ranking of workplaces regarding working conditions in a mining company

Bogdanovic D., Stankovic V., Urosevic S., Stojanovic M.

International Journal of Occupational Safety and Ergonomics

2016

Vol. 22, No. 4

479--486

Ranking of workplaces with respect to working conditions is very significant for each company. It indicates the positions where employees are most exposed to adverse effects resulting from the working environment, which endangers their health. This article presents the results obtained for 12 different production workplaces in the copper mining and smelting complex RTB Bor – ‘Veliki Krivelj’ open pit, based on six parameters measured regularly which defined the following working environment conditions: air temperature, light, noise, dustiness, chemical hazards and vibrations. The ranking of workplaces has been performed by PROMETHEE/GAIA. Additional optimization of workplaces is done by PROMETHEE V with the given limits related to maximum permitted values for working environment parameters. The obtained results indicate that the most difficult workplace is on the excavation location (excavator operator). This method can be successfully used for solving similar kinds of problems, in order to improve working conditions.

Cyclic Current Ratings of Single-Core XLPE Cables with Respect to Designed Life Time

Stojanovic M., Tasic D., Ristic A.

Przegląd Elektrotechniczny

2013

R. 89, nr 5

152-156

This paper provides an overview of overload capacity of single-core XLPE cables buried in the ground. Cyclic rating factor obtained by IEC60853-1 and IEC60853-2 standards is conservative due to assumption that maximum temperature during the cycle is equal to rated temperature. Using the procedure proposed by IEC60853-2, transient temperature response of the cables exposed to daily cyclic loading is calculated. Then, overload capacity of cables is obtained with respect to assigned design life of cables using Arrhenius-IPM electrothermal life model.

W artykule przedstawiono wyniki analizy możliwości przeciążeniowych jednożyłowego kabla grzebanego w ziemi. Na podstawie procedury zawartej w standardzie IEC60853-2 określono wpływ dobowego obciążenia energetycznego na zmiany temperatury kabla. Następnie korzystając z modelu elektro-termalnego Arrhenius-IPM i uwzględniając dane znamionowe określono możliwości przeciążeniowe kabli.