Description: Part of the maintenance time during which active maintenance is carried out on an object; Name: time for active maintenace
Description: Part of the maintenance time when active maintenance is carried out on an item ; Name: Active maintenance time
Description: NPSH-value required for a drop of 3 % in the total head of the first stage of the pump as a standard basis for use in performance curves; Name: Net positive suction head required for a drop of 3 %