Can 34980A Test AC Power Line?

Frequently Asked Questions (FAQs)SummaryTips for testing AC line for 34980AQuestionCan 34980A Test AC Power Line?AnswerThe 34980A is not safety rated to connect directly to power mains in the main service circuit breaker panel.   However it can measure 230 Vrms.  The 310 V peak is not a problem for AC measurement.    The 34980A is a CAT II instrument.   The 34980A can be used to measure the mains on equipment downstream from the main circuit breaker.