Light reflectance and arc resistance of nozzle for circuit breaker
2004
A study on the arc resistance and light reflectance of PTFE nozzle for circuit breaker is presented. PTFE has been used widely as a material for circuit breaker nozzle. In the arcing environment in a circuit breaker, the fraction of the radiation power is emitted out of the arc and reaches the nozzle wall by radiation, causing ablation at the surface and in the depth of the wall. In this paper, some fillers that have endurance in the high temperature arc environment were added into PTFE. Adding some fillers into PTFE was expected to be efficient in improving the endurability against radiation. The light reflectance and arc resistance of PTFE composites were investigated.
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