Note: 1. Constant acceleration measured in meters m/sec2. Divide by 9.81 to get acceleration in g ' s ( based on value of gat sealevel: g=9.81m/s2) 2. Peak displacem ent measured in millimeters(mm) . 3.Use peak displacement (s) below8Hz to 9Hz.Use constant acceleration (a) above 8Hzto 9Hz. 4. TBS=To Be Specified.
②沖擊的等級其限值 a、IEC 60654-3中規(guī)定的沖擊等級及優(yōu)選值見表13 。 表13 沖擊等級及優(yōu)選值表