Introduction of Fuse cutout

Drop-out  fuse cutout  and load drop type fuse is the outdoor high voltage protective device. It equipment in distribution transformer high voltage side or distribution line branch trunk road, as the transformer and line short road, overload protection and points, closing load current. Drop type fuse by the insulating bracket and the fuse tube is composed of two parts, the static contact is mounted in the insulated bracket at both ends, moving contact mounting of the fuse tube ends of wire tube comprises a layer of arc tube and an outer layer of epoxy glass tube. Load dropping type fuse increased elastic auxiliary contact and arc extinguishing cover, with points, closing load current.
Drop type fuse cutout in normal operation, the fuse tube with fuse tension after the formation of the closed position. When a fault occurs, fault current that the fuse is fused quickly, and the formation of arc, arc tube by arc burning, decomposition of the large amounts of gas, so that the tube is formed inside the high pressure, and along the pipeline to form longitudinal blow, arc is rapidly stretched out. After the fuse wire is broken, the lower moving contact without puling down, the locking mechanism to release the fuse tube, fuse tube fall, formed apparent breaking position. When the need to pull the load with the insulating rod, moving contact, when active, static help contact still ran contact, continue to use the insulating rod puling contact auxiliary contact separation, also, in the auxiliary contacts between arc, arc in the arc cover slit is elongated, and arc extinguishing cover to generate gas, in the electrical flow through zero, the extinction of arc.
1、Normal conditions of use:
a)Environmental temperature not higher than40DEGC+,not lower than-40DEGC);

b)Altitude does not exceed1000m;

c)The maximum wind speed of no more than 35m/S;

d)Does not exceed 8degree earthquake intensity.

2、The product is not applicable to the following locations:
a)Combustion or explosion risk areas;

b)With severe vibration or shock sites;

c)A conductive, chemical gas and serious pollution, salt fog area.