In electrical distribution, a fuse cutout or cut-out fuse is a combination of a fuse and a switch, used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads. An overcurrent caused by a fault in the transformer or customer circuit will cause the fuse to melt, disconnecting the transformer from the line. It can also be opened manually by utility linemen standing on the ground and using a long insulating stick called a "hot stick".
Wholesale Fuse Cutout â??s Construction
The fuse elements used in most distribution cutouts are tin or silver alloy wires that melt when subjected to high enough current. Ampere ratings of fuse elements vary from 1 ampere to 200 amperes.
Standards
Up until the mid-1990s each manufacturer used their own dimensional standards for cutout design; by the late 1990s most cutouts were of an "interchangeable design". This design allows for the interchangeable use of cutout bodies and fuse holders manufactured by different vendors.
1. Offer safe and reliable overcurrent protection 2. Easy installation & flexible application 3. Long-term stable operation Model: pd series Rated voltage: 11kv Rated current: 100a Breaking current: 6000a Impulse voltage(bil): 110 Power frequency withstand voltage: 40v Leakage distance: 250mm Weight: 7.5kg Dimension (cm): 49*27*11.5 7.5kg
Part No 1715
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