Risk-Based Inspection

The POF analysis should address all damage mechanisms to which the
equipment being studied is or can be susceptible. Further, it should address
the situation where equipment is or can be susceptible to multiple damage
mechanisms (e.g. thinning and creep). The analysis should be credible 可 信 ,
repeatable 能 重 复 and documented 必 须 记 录 . It should be noted that damage
mechanisms are not the only causes of loss of containment. Other causes of
loss of containment could include but are not limited to: 但 应 注 意 的 是 , 损 伤 机
理 并 不 是 唯 一 导 致 溶 液 流 失 的 原 因 , 其 他 原 因 有
a) seismic activity, 地 震 活 动
b) weather extremes, 极 端 天 气
c) overpressure due to pressure-relief device failure, 过 压 , 由 于 减 压 装 置 故 障
d) operator error, 操 作 失 误
e) inadvertent substitution of materials of construction, 施 工 材 料 无 意 取 代
f) design error, 设 计 错 误
g) sabotage. 破 坏 活 动
These and other causes of loss of containment may have an impact on the
POF and may be (but typically are not) included in the POF analysis for RBI.
API 580
Charlie Chong/ Fion Zhang