Meaning: A province in southeastern central China between the Nan Ling mountains and the Chang Jiang; noted for its timber and valuable mineral resources. Classified under: Nouns denoting spatial position. Synonyms: Hunan; Hunan province. Instance hypernyms:
The special-purpose GFCI category is for applications where equipment grounding is provided by the NEC or where the voltage is greater than 150V. Specialty GFCIs trip when the current to ground has a value of 15 to 20 mA.
A GFCI works by measuring the current leaving one side of a power source (the so-called live or hot wire), and comparing it to current returning on the other (the neutral side). If they are not equal, then some of the current must be leaking in an unwanted way, and the GFCI shuts the power off.