Main principle

Drop-out Fuse Cutout and load switching Fuse Cutout are of outdoor used high voltage
protective device, tube connected with incoming feeder of distribution transformer or
distribution lines, it mainly protect transformer or lines from short circuit and overload, and
on/off loading, current. Drop-out Fuse Cutout is composed of insulate insulator supports
and fuse tube, static contacts is fixed on two sides of insulator support and moving contact
is installed on two ends of fuse tube, fuse tube is composed of inside arc-extinguishing
tube. Outer phenolic compound paper tube or epoxy glass tube, load switching Fuse Cutout
provides enfored elastic auxiliry contacts and arc-extinguishing exclosure switching on-off
loading current.