| 摘要 |
The invention concerns to electrical hermetic penetrant structure of the low voltage, used for input of electrical energy and signals in tight premises, for example, in atomic power stations, nuclear vessels, underground, etc. The objective of the present invention is creation of electrical penetrant structure, keeping operational properties at the increased temperature and influence of open fire. The task in view is solved in the following way. Electrical hermetic penetrant structure containing the case under pressure, hermetic modules sealed relative to the case, the hermetically sealed wires pressurized in a metal pipe of each module through polysulphone insulators, has at least in one of the ends of each module the insulators of polyetheretherketon (PEEK) behind the poly-sulphone insulators. On these ends of each module an additional external insulator can be installed in the form of a socket of thermal-shrinkage pipe, filled by fire-resistant sealant.
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