Area of wire in units of 1000 circular mfilis.
0. 0000
o
DIRECT FEEDING SYSTEMS. 81
2100
1950
1650
1500
1050
900
Pounds per 1000 feet of Bare Copper Wire.
PYATE 1L
AREA AND WEIGHT OF COPPER
required for transmitting 100 amperes for dis-
tances of 25000 feet and less, at 50 volts loss, with
various constants for track return.
10 15 20 2
Distance in units of 1000 feet. Street Railway Journal,