济南发光字遭受过电冲击后的失效形式并非固定，但通常会招致焊接线损坏。

The failure form of Ji 'nan luminous character after being subjected to electric shock is not fixed, but it usually causes welding line damage.

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济南发光字自身的失效主要有以下几种状况。

Ji 'nan luminous word failure mainly has the following conditions.

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这些损坏可以表现为器件的立刻失效，也可能发作在过电流冲击事情后许久才失效，缩短济南发光字的工作寿命。

These damage can be manifested as the immediate failure of the device, may also occur in the over-current shock after a long time to failure, shorten the working life of Ji'nan luminous word.

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