| 摘要 |
<p>PURPOSE: To prevent leakage of gas even when a function is decreased of a gasket between a lead conductor and a porcelain bushing. CONSTITUTION: In a lead wire bushing for an electric device, a lead conductor 1 is surrounded by a porcelain bushing 2 and led out to outside a device of the electric device from a terminal box of the electric device sealing gas in the device, so as to connect a conductor inside the device to a conductor outside the device. Gaskets 4a, 4b, provided in a clearance between the porcelain bushing 2 and the lead conductor 1 in lead-out part of the lead conductor 1 to outside the device for preventing leakage of gas in the device, and a plurality of layers of filling substances 6, 7, 8, provided in a clearance between the porcelain bushing 2 and the lead conductor 1 in a device inner side from a part provided with the gaskets 4a, 4b for preventing leakage of gas in the device, are provided.</p> |
