| 摘要 |
<p>An electrical resistance (1; 50) of the so-called band type comprising a laminar base element (2; 51), made of high dielectric strength material, and a resistive wire (3; 52), which is electrically connected with an electricity source and wrapped around said laminar element (2; 51) resulting close to a plurality of surface sectors (4; 53) of the outer edges (2a, 2b; 51 a, 51 b) of the laminar element (2; 51). In particular, the laminar base element (2; 51) presents near the surface sectors (4, 53) a plurality of through holes (5; 54) allowing the resistive wire (3; 52), when it reaches high operating temperatures which undergo to traction the laminar base element (2; 51), to cause yielding of an intermediate tongue (6) defined between the aforesaid surface sectors (4; 53) and the through holes (5; 54).</p> |
