1 rated voltage kv 550 2 rated current a 4000 3 rated short-time withstand current ka 63/3s 4 rated peak withstand current ka 160 5 rated lightning impulse withstand voltage kv across open breaks 1675 450 to earth 1675 6 rated 1min power frequency withstand voltage kv across open breaks 740 315 to earth 740 7 rated switching impulse withstand voltage kv across open breaks 1175 450 to earth 1300
add: xi'an economic and technological development zone no. 95 fengcheng 12 p.c:710018 tel:86-29-86195309 86-29-86195310 fax:86-29-86195308 support: copy right (@)xi'an xd high voltage apparatus co., ltd.