gw4-凯发k8官凯发k8

1 rated voltage kv 126
           2 rated current a 1250、1600、2000、2500、3150
           3 rated short-time withstand current ka    31.5/4s、40/4s
           4 rated peak withstand current ka 80、100
           5 rated lightning impulse withstand voltage kv across open breaks 550 100
           to earth 550                                                                                                                        6 rated 1min power frequency
           withstand voltage kv across open breaks 230 70
           to earth 230