INSTALLATION CALCULATIONS
CALCULATING OUTSIDE DIAMETER (DIAMETER OF INSULATED CONDUCTOR TIMES MULTIPLIER PLUS 2 TIMES THICKNESS OF JACKET)
NUMBER OF CONDUCTORS
MULTIPLIER
PULLING TENSION OF COPPER CABLES
CIRCULAR MIL AREA OF INDIVIDUAL COPPER CONDUCTOR TIMES NUMBER OF CONDUCTORS TIMES .008
MINIMUM BEND RADIUS OF COPPER CABLE
UNSHIELDED CABLES UP TO 1” - 4 TIMES CABLE DIAMETER 1 - 2” - 5 TIMES CABLE DIAMETER BRAID SHIELD & ALUMINUM MYLAR® SHIELD CABLES UP TO 2” - 7 TIMES CABLE DIAMETER METALLIC TAPE SHIELD UP TO 2” - 12 TIMES CABLE DIAMETER
UNSHIELDED CABLES UP TO 1” - 4 TIMES CABLE DIAMETER
1 - 2” - 5 TIMES CABLE DIAMETER
BRAID SHIELD & ALUMINUM MYLAR® SHIELD CABLES UP TO 2” - 7 TIMES CABLE DIAMETER
METALLIC TAPE SHIELD UP TO 2” - 12 TIMES CABLE DIAMETER
CONDUIT FILL CHART (INDIVIDUAL CABLE AREA = CABLE O.D. SQUARED TIMES .7854, TOTAL FILL OF CONDUIT = SUM OF INDIVIDUAL CABLE AREAS)
CONDUIT SIZE INCHES
INTERNAL DIAMETER INCHES
TOTAL AREA SQ. INCHES (100%)