| 摘要 |
A conduit cover prefabricated into complementary insulated ring sections each including an outer metallic cover plate and an electrically conductive metal mesh and an encapsulated insulating mat, with the electrically conductive metal mesh electrically energized and responsive to penetrating moisture from the conduit for completing an electric circuit between the outer metallic cover plate and the metal mesh so as to detect a leak in the conduit.
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