| 摘要 |
The invention concerns an isolating nozzle for arc blow circuit breaker. The invention is characterised in that the material from which the nozzle is made comprises (A) 99-99.9 wt. % of a fluorinated polymer, and (B) 0.1 to 10 wt. % of a filler based on at least an oxide selected among (B1) SiO2 and other oxidised forms of metals of column IVA of the classification of elements, and (B2) ZnO, CdO and other oxidised forms of metals of column IIB of the classification of elements.
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