for some components far exceed their field time and test data, OEMs are looking for assurance that their expensive luminaire will not be rendered useless should one component fail.
Second, historical data on part failures, including numbers of failures and MTBFs
, were analyzed to determine optimal spares allocation at the base level.
For instance, while cars are typically designed for a lO0,O00-mile life, current UGV design goals are a mean time between failure of 100 hours, and most actually achieve MTBFs
that are far shorter.
Most TMPs in the past had mean time between failure (MTBF
) values in excess of 100,000 hr (11.4 yr), but current products now have MTBFs
in excess of 200,000 hr due to improved balancing, bearings, and rotor designs.
This modular system realizes savings in labor and floor space while achieving unexcelled MTBFs
. Tool changes of less than 1 sec and speeds of 60 m/min, as well as 1 G acceleration provide effective production outputs.
Because the losses take place in the switching transistors, already stressed just because of the application, mean time between failures (MTBFs
) is improved.
The MPM-reliability calculations presented above indicate that MPMs will also exhibit MTBFs
in the tens of thousands of hours.
Architectural design that's very good from an aesthetic standpoint is sometimes not so desirable from a security and/or operations and maintenance perspective, and it's important to avoid architectural decisions that could reduce mean time between failures (MTBFs
) or jeopardize an electronic security system's effectiveness.
Adding a UPS dramatically increases your uptime because most UpSes exhibit MTBFs
far greater than those associated with internet-working equipment If you size your UPS to provide your internetworking equipment with at least five minutes of run-time, it will protect you from more than 90% of all power problems.
increase, the number of test hours required also increases.