| 摘要 |
Nozzles of ceramic or org. material for esp. gas-pressure circuit-breakers with clear air-sepn. passages are equipped with a cover or coating of an arc insulating cycloaliphatic and/or aliphatic polyepoxide cpd., which is hardened at room temp. with a polyaminoamide. - Pref. the polyepoxide cpd. contains an N-contg. org. based filler. - Coating gives high resistance to short duration mechanical and electrical loading, due to arcing and pressure waves.
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