| 摘要 |
<p>PURPOSE:To part snow adhesion onto an electric wire positively, and to improve an inhibition effect is snow deposit and growth by forming an inner cylinder section having two piece structure and an outer circumferential section covering the outer circumference of the inner cylinder section. CONSTITUTION:The devices K are installed and used to an electric wire L an proper intervals during a span (d) between transmission steel towers T, T. Since the shape of a bimetal 23 is deformed so that a movable section 22 in an outer cylinder section 20 is fast stuck onto the outer circumference of an inner cylinder section 10 on low- temperature atmospheric phenomena in which snow deposit is generated approximately on the electric wire 1, the movable section 22 and a fixed section 21 are bonded through overlapping sections 21b, 22a, and a cylindrical magnetic circuit is shaped in the circumferential direction of the electric wire L. Since alternating magnetic flux by transmission currents flowing through the electric wire L is focussed into the magnetic circuit, large induced currents flow in the outer cylinder section 20, thus heat-generating the outer cylinder section 20. That is, snow deposit is parted at every mounting interval owing to the heat generation of the outer cylinder sections 20 at the positions of the mounting of the devices K for snow deposit on the electric wire L, thus reducing the maximum snow deposit thickness.</p> |
