| 摘要 |
A first and a second conduit section (10, 12) each have end portions (11, 13) which are covered by a dielectric insulating material (14, 22). The dielectric material (14, 22) covers an outer side surface (16, 24), an end surface (18, 26), and an inner side surface (20, 28) of each end portion (11, 13). The conduit sections are connected together at their ends to form a continuous conduit. Each section is grounded, which in combination with the dielectric material, prevents an electric spark from arcing between their ends.
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