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.
The average threshold of perception of an electric current is 5mA dc in men. The threshold varies widely among individuals from 2mA to 10mA dc. The average threshold of 60Hz current is 1mA. The threshold increases with increasing ac frequency. At 100kHz, the threshold is 150mA.