Cable Failure Modes and Effects Risk Analysis Perspectives

摘要

A March 1975 cable fire at the Browns Ferry Nuclear Power Plant in the United States provided new insights into the impact of fire-induced cable damage on electrical circuits. New fire protection requirements promulgated by the USNRC following this fire require that licensee to conduct a post-fire safe shutdown analysis that includes consideration of fire-induced circuit effects. Cable failure modes and effects circuit analysis is an ongoing area of technical challenge and regulatory focus. Effort are underway to develop risk-informed approaches to resolution of the remaining challenges.