The high-phase situation can be a serious hazard to human life as well as to any 120-volt equipment connected improperly between the high phase and neutral.

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The high-phase situation, where one phase of a three-phase power system is significantly higher in voltage than the other two, can be dangerous for both humans and equipment. Any 120-volt equipment connected improperly between the high phase and neutral can be damaged or cause electrical shock, which poses a serious hazard to human life.

The High-Phase Situation Can Be a Serious Hazard to Human