RN1 type indoor H. V. Current-limiting fuse is used for protectiong from overload and short circuit for power circuit. THe so-called current-limiting is the function of fuse cutting off the short circuit current before it reaching the peak value.
Fusing characteristics:
1. When the passing current for fuse is 1.3 times of its rated current, it does not melt in 1 hour.
2. When the passing current for fuse is 2 times of its rated current, it melts in 1 hour.
3. Fusing characteristic curve of fuse see the following Fig, for reference of selecting fuse.
