UARLUkrainian Amateur Radio League
UARLUnavoidable Annual Real Loss
References in periodicals archive ?
UARL is a useful concept as it can be used to predict, with reasonable reliability, the lowest technical annual real losses for any combination of mains length, number of connections, customer meter location at current operating pressures, assuming that the system is in good condition with high standards for management of real losses and there are no financial or economic constraints.
It is just a question of how high these UARL will be.
With current knowledge and experience, UARL can be calculated for any system with more than 5000 service connections, density of connections greater than 20 per km mains, and operating pressure between 25-100 metres.