Operating Period

Operating Period

 

the period of usage required for a device to attain the operating limit. The operating period includes the effective operating time and all types of idle time, whether caused by maintenance and repair or by organizational or other reasons. Operating periods of devices of the same type may differ, since many unforeseen random factors come into play, for example, structural peculiarities in the device and factors relating to operating conditions. For this reason, a quantitative evaluation of operating period is carried out with the aid of probability indexes, such as average operating period (mathematical expectation of operating life) and the 7-percentage of operating life (the calendar period of usage during which the device will not reach its operational limit with a specified probability of 7 percent).

The rated operating period is the period of usage after which the device is either removed (and written off) or routed for an investigation of its technical condition with the aim of determining its suitability for further operation. If the device is operated continuously, its operating period coincides with its service life. In all other cases, the relationship between the operating period and service life of a device is determined by the intensity of operation.

V. N. FOMIN

References in periodicals archive ?
As set out in the Announcement, the franchise period under the Franchising Contracts is the same as the operating period of the power generation facilities at which the franchise projects are located.
Spare parts concept for the complete scope of supply during the operating period.
Meridiam will design, build, finance, and operate the Yozgat Hospital, with a 24-month construction period followed by a 25-year operating period.
The operator of the plant expects a two-year operating period without interruptions.
It includes for discussion purposes the case when there is no ITS and the 150 ton chiller would run at chilled-water supply temperature of 45[degrees]F (7[degrees]C) to meet the cooling load for the entire operating period.
The properties are considered as contributed to the Fibra upon their notarization and payment; therefore, all financial information contained in this report for Q2 '13 refers to the operating period in which those hotels became part of the Fibra.
On an annualised basis, actual revenue was marginally lower than projected due to the shorter operating period as the concession assets were acquired on January 12, 2012.
Nishikawa's requests to the government included establishing a rule on an allowable operating period for reactors older than 40 years, and sufficiently explaining reasons for requesting the shutdown of only the Hamaoka nuclear power plant.
9MW Paehl project over the 1-year operating period clearly proved ET Solar's robust plant design capabilities and module quality, and added good investor value for us.
Announced on 15 July, the award covers a development phase and the provision of instruction and maintenance services over a 15-year operating period.
The plant in Crown Street employs 150 people, rising to 240 in its peak operating period between August and November.
For example, during a 22-day fed-batch operating period, a culture of C.