Зображення сторінки
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SYSTEM.

Constants for one 16 c. p. Lamp (3.1 Watts.

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Cir. Mils. Number of Lamps x by above Constant.

Divide by 4 for 3-wire System.

Check Size Wire for Ampere Capacity in using Tahle.

GAUGE.

Diam. in Tooo inch.

Area in Circ. Mills.

Lbs. per ft.

Lbs. per ft.

TABLE OF WIRE "B. AND S." GAUGE.

Resist'n'c in ohms.

Cents per Foot Covered,

A=D2

bare.

covered.

per foot.

At 160. lb. At 18c. lb. At 20c. lb.

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