English to Russian Tech/Engineering Engineering: Industrial испытания огнестойкости

Possible up to a maximum 15 % increase in height and/or width or 20 % in area for louvre tested in a door which achieved Category B overrun time; and providing the minimum distance between the edge of louvre and the perimeter of the door leaf / panel is not decreased and possible in line with a leaf size increase, otherwise not possible without an additional test.