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Presentation of the productivity indicators

 

Tot = Total Time (24 hours, 168 hours, ...)
Open = Opening timeClosing
Nec = Necessary TimeUnder load, preventive maintenance, tests, break
Oper = Operating timeFunctionnals stops (exploitation stops, breakdowns, micro stops and induced stops)
Net = Net TimeVariation of rates
Eff = Effective TimeNot quality
     
OEE =
Rq
(Rate of quality)
xRp
(Rate of performance)
xOa
(Operational availability)
Gy =
OEE
(Overall Equipment Effectivness)
xRi
(Rate of load)
Ey =
Gy
(Global Yield)
xSr
(Strategic rate of engagement)

Source Afnor : Norme 60 - 182

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