... , protection and monitoring, but also for frequent operation place. Switchgear to meet GB3906, GB/T11022, DL404, IEC60298 and other ... exceed 1000m. ♦ Maximum earthquake intensity not exceed 8 degrees. ♦ switchgear should be installed in the absence of fire, no explosion ... handcart, and to prevent misuse and damage to the advance mechanism. ♦ All operations were carried out under the door closed. ...