A1 LT15 Flashcards
How do you convert a CMA to SMA?
Multiply the CMA by 0.7854.
What is the relationship between the AWG number and the resistance per unit length of the wire?
Larger AWG number, greater resistance
How is one circular mil defined?
Cross-sectional area of a wire with a diameter of one mil
What is the formula to convert square mils to circular mils?
CMA = SMA / 0.7854
What are the common numbers of conductors in stranded configurations?
7, 19, 37, 61, 91, 127
What is the smallest AWG wire number?
50
What is the largest AWG wire number?
0
What is the ratio of cross-section in circular mils between one gauge number and the next higher gauge number?
1.26
What does the unit kCM represent according to the metric system and the Canadian Electrical Code (CEC)?
1 kCM = 1000 CM
What is the formula to convert cross-sectional dimensions to circular mils?
SMA = Width in mils x Length in mils
What unit is used to express the cross-sectional areas of conductors?
Square mils
How does the cross-sectional area (CMA) change every three gauge numbers?
Approximately halved or doubled
What does the unit MCM stand for in the electrical industry?
1 MCM = 1000 CM
How are sizes of conductors expressed in terms of cross-section?
Thickness x Width
