| 摘要 |
<p>Three-phase electric-power line comprising a gastight steel tubular casing filled with pressurised insulating gas, such as nitrogen or carbon dioxide CO2, inside which are place three busbars, a thin aluminium tubular casing (3) being arranged between the steel casing (2) and the busbars (1A, 1B, 1C), characterised in that the busbars (1A, 1B, 1C) are held in place by clamps (4) made of non-magnetic material, having an external diameter equal to the internal diameter of the aluminium tubular casing (3) and possessing three radial arms(4A, 4B, 4C) onto which are screwed the fasteners (7, 8) for the insulating supports (6) gripping the busbars. <IMAGE></p> |
