Overview
This product is suitable for indoor AC 50Hz, rated voltage of 3.6KV, 7.2KV, 12KV, 24KV, 40.5KV system, can be used with other switches, electrical appliances, such as load switches, vacuum contactors, as power transformers and other electrical equipment Short circuit and overload protection components are also necessary supporting products for high voltage switch frame, ring network frame, high and low voltage prefabricated substations.
It can reliably cut off any fault current between the minimum breaking current and the rated breaking current. The product not only has the high breaking capacity of the current-limiting fuse, but also has the better small current of the non-current-limiting fuse. Protection characteristics, good protection characteristics of full-range breaking can be obtained.
Cannot work in the following environment
(1) Indoor places with relative humidity greater than 95%.
(2) There are places where there is a danger of burning goods and explosions.
(3) Places with severe vibration, swing or impact.
(4) Areas with an altitude of more than 2,000 meters.
(5) Air pollution areas and special humid places.
(6) Special places (such as used in X-ray devices).
Precautions for the use of fuses
1. The protection characteristics of the fuse should be compatible with the overload characteristics of the protected object. Considering the possible short-circuit current, select the fuse with the corresponding breaking capacity;
2. The rated voltage of the fuse should be adapted to the line voltage level, and the rated current of the fuse should be greater than or equal to the rated current of the melt;
3. The rated current of the fuses at all levels in the line should be matched accordingly, and the rated current of the melt of the previous level must be greater than the rated current of the melt of the next level;
4. The melt of the fuse should be matched with the melt as required. It is not allowed to increase the melt at will or replace the melt with other conductors.
