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Today's power system engineer must not only assure that the facility receives all the power it needs efficiently and reliably, it is also important to make sure it is done as safely as possible, without loss of reliability, and under tight budgetary constraints and new standards like NFPA70E.
Arc flash hazard exposure is a function of fault clearing time at an arcing current and a worker's distance from the event.
Multiple techniques can be employed to limit exposure and reduce the risk of an arc explosion. |