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23:25 Feb 17, 2006
This question was closed without grading. Reason: Answer found elsewhere
English to Spanish translations [PRO] Tech/Engineering - Mechanics / Mech Engineering / Elevators
English term or phrase:count
Hola! Necesito ayuda con la palabra count en este contexto:
For an elevator system to be used for emergency evacuation a defined minimum Mission Availability (MA) has to be established before a MCF occurs. MA is determined from the period of use, allowing for down time for planned maintenance, planed repairs, breakdowns, level of redundancy and degradation as determined from the various ICE scenarios, Mission Availability can be stated as:
In determining the elevator MA, it is essential that the elevator is correctly defined, this is stated as the probability that an elevator will have a MCF during a Elevator Mission Profile (MP).
A MP consists of a ***count*** or event, which is made up of electrical, mechanical or combination of lectrical/mechanical activity. This can be summarised for an automatically controlled passenger elevator as; the activation of a call button – elevator control response such as (acceleration – braking – levelling – stopping – doors opening – doors closing), this can be expanded into the various elevator sub-systems which constitute and elevator *** count***, the next ***count*** will initiate the next elevator mission.
In a normal operational building it can be reasonably assumed that an elevator will be used for 60 counts each hour for a 12 hour operational day, this equates to 60 x 12 = 720 counts/day, to make compensation for single floor runs a figure of 750 ounts/day is used.
Assuming an average calendar month is 30 days the total elevator counts each month is 750 x 30 = 22,500 counts, therefore the yearly elevator counts will be 22,500 x 12 = 270,000, any public holidays and weekends are not taken into account for basis of these assumptions.
With a suggested Mission Availability (MA) of 99.75%, a MF of six events in the total
monthly elevator missions of 22,250. In practical terms of elevator down time in which the E4 elevators would not be available for missions is approximately 54 minutes.