| 摘要 |
<p>The cable (1) has a spacer (4) whose inner support part (4a) covers 15% of a surface of a metallic inner conductor (2) in a running direction while an outer support part (4d) covers 50% of an inner surface of a metallic outer conductor (3). The conductors limit an intermediate space (5a) filled with an insulation unit. The insulation unit is either refined palm oil or liquefied by operating temperature produced during operation of the cable to enable a natural convection of the insulation unit between the conductors at the operating temperature in the space. The spacer is made of plastic. An independent claim is also included for a method for natural cooling of a self-cooling coaxial high voltage cable.</p> |
