Copper conductors are  surrounded with many layers of paper insulation.

铜导体周围有多层纸绝缘体。

It is critical that the oil completely saturates the paper insulation and fills every nook and  cranny within the pipe.

至关重要的是，油必须完全浸透绝缘纸并填充管道内的每个角落和缝隙。

Over hundreds or thousands of cycles of TMB, the paper insulation around each conductor  can begin to soften or tear, eventually leading to a dielectric breakdown (in other words, arcs and short circuits).

经过数百或数千次 TMB 循环，每个导体周围的纸绝缘体可能会开始软化或撕裂，最终导致介电击穿（换句话说，电弧和短路）。

This oil impregnates the paper insulation around  each conductor to create a highly insulative layer that prevents arcs from forming, even with the  conductors sitting mere inches apart from one another and the surrounding steel pipe.

这种油会浸渍每个导体周围的绝缘纸， 形成一层高度绝缘的层，即使导体彼此之间以及周围的钢管之间只有几英寸的距离， 也能防止电弧的形成。

Even more importantly, relieving the  oil pressure from the rest of the pipe could allow gas bubbles to form inside the layers  of paper insulation, potentially damaging them and creating new places for faults to form.

更重要的是， 释放管道其余部分的油压可能会导致纸绝缘层内部形成气泡，可能会损坏它们并产生新的故障位置。