EN
Model: MTFP1-15/100(200)
Rated voltage (kV): 12-15
Rated current (A): 100(200)
Breaking current (kA): 6(8)
Impulse voltage (kV): 110
Power frequency withstand voltage (kV): 42
Creepage distance (mm): 220
Deconstructing the Structure: A Complete Protective System
To truly understand a fuse cutout, you have to see it as a complete device with several integrated fuse cutout parts. It isn't just a single component like a regular fuse. This fuse cutout assembly consists of three primary parts working in unison.
The Insulator: This crucial component supports the entire assembly. It's typically made of porcelain fuse cutout or a newer, lighter polymer fuse cutout material.
The Fuse Tube: This is an open-ended tube that holds the fuse link cutout. The tube itself is a vital part of the interruption process, as it helps extinguish the arc when the fuse blows.
Metal Contacts and Brackets: These parts connect the device to the power line fuse cutout and the rest of the electrical infrastructure. The top contacts hold the fuse tube securely, while the bottom ones are designed to release the tube during an interruption.
How Does A Fuse Cutout Work ？
Used on overhead transmission lines and taps to protect distribution transformers from current surges and overloads,An overcurrent caused by a fault in the transformer or user circuit can cause the fuse to melt and the switch mechanism to visibly open,Disconnect the transformer from the line. The device can also be opened manually by a utility line worker standing on the ground and using a long insulating rod called a "ground rod."
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