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Understanding & Preventing Manhole Explosions and Manhole Fires

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Understanding the chain of events that lead to these often dramatic and occasionally deadly incidents has not been simple. In fact, the first serious effort to codify what was happening underground to trigger manhole incidents occurred over 65 years ago. The IEEE PES-ICC’s Arcing Fault Task Group was established in 1957 to develop prevention measures and met regularly for six years, but eventually dissolved without publishing guidance. Other attempts to address the issue have happened across several organizations in the decades since.

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