| 摘要 |
<p>A bundle of electrical cables (20) are shielded from electromagnetic interference by an elongate tape (1) wrapped widthwise round the bundle with its longitudinal edges (8,11) overlapping one another. The tape (1) includes a woven mesh (2) of bare-metal strands (5) sandwiched between outer and inner layers (4, 3) of sheet- plastics, the weave being a narrow-fabric weave having warp strands (5) running longitudinally of the tape (1) and a single unbroken weft-strand (6). The mesh (2) is bare on the outside along one longitudinal margin (11) and also on the inside along the other longitudinal margin (8) for direct electrical contact between them within the overlap in establishing closed electrical circuits encircling the cable-bundle throughout the length of the tape (1). The margin (11) of the mesh (2) innermost in the wrap may instead be insulated, merely adding insignificant capacitance into the otherwise purely-resistive encircling circuits.</p> |
