| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulation nozzle for a circuit breaker, which prevents internal deterioration and surface attrition due to arc light generated in large current cutoff. SOLUTION: The insulation nozzle for a circuit breaker contains 0.5-5 vol.% of an inorganic filler having an average particle diameter of 1-3μm, a maximum particle diameter of≤10μm, and a refractive index of≥1.7, and is formed of a fluororesin composition of which the reflectance at a wavelength of 240-1,300 nm is≥85%. Examples of the inorganic filler include boron nitride, alumina or mixtures of them. COPYRIGHT: (C)2009,JPO&INPIT
|
