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Page 188

| Figure 10-10 Line contact. |

| Figure 10-11 Area contact. |

| Other Disconnecting and Switching Devices |

| Disconnect blades often consist of, or incorporate, a fuse element. For voltages of about 5,000 V or less, these fuses may be enclosed in a porcelain enclosure known as a fuse cut-out. A solid bar or link sometimes takes the place of the fuse, resulting in a disconnecting cut-out (Fig. 10-12). Similarly, oil fuse cut-outs may perform the same function, with the fuse element or solid link operating under oil. When used as disconnecting devices, these units are generally operated in the same manner as other types of disconnects. The function and application of fuses will be discussed in the next chapter. |

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