Audited Supplier
Composite Insulated Drop Type Fuse HRW12 Series
Usage conditions
1. Applicable to ambient temperature within the upper limit of 40ºC and lower limit of -30ºC.
2. Altitude not exceeding 1000m, wind speed not exceeding 35m/s.
3.The fuse is not applicable to the following places:
Places with fuel or explosion hazard.
Places with severe vibration or shock.
There are different electrochemical gases and serious air filth, smoke areas.
When installing the fuse, the fuse should be pulled tight so that the fuse is subjected to approximately left and right tension, otherwise it will easily cause the contacts to heat up.
The fuse should be mounted firmly and reliably on the crossbar frame without any shaking or rocking.
The fuse tube should have a downward inclination, so that the fuse tube can fall down quickly by its own weight when the fuse breaks.
Fuse should be installed in the vertical distance from the ground is not less than the cross-bar frame, if installed above the distribution transformer, should be with the distribution transformer of the outer contour of the boundary to maintain the above horizontal distance, in case the fuse falls off to cause other accidents.
The length of the fuse should be adjusted moderately, the duckbill tongue can be required to close the contact length of more than two-thirds of the duckbill tongue buckle, so as to avoid the operation of the fall of the false action, the fuse should not be topped duckbill, in order to prevent the melt melt can not be timely after the melt fall.
