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A36F - 3 PHASE - INSTRUCTIONS AND TROUBLESHOOTING
Page 9 of 21
TABLE 2
7.6
POWER CABLING FORMULAS
The following section may be used to calculate the wire size requirements for wire lengths in excess of 10
ft. (Refer to TABLE 3)
CMA=
CROSS SECTION OF WIRE IN CIRCULAR MILS.
A = CURRENT
DRAIN IN AMPERES.
LF = CONDUCTOR LOOP FEET.
MAX AMP= MAXIMUM
ALLOWABLE CURRENT FOR A GIVEN VOLTAGE DROP (IN AMPERES).
AVD =
ALLOWABLE VOLTAGE DROP.
K= 11.1
CONSTANT FACTOR FOR COMMERCIAL (TW TYPE)