La Marche PC63 Series, Инструкция по эксплуатации

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INSTRUCTION MANUAL FOR PC63 CAGE
Page 8 of 10
POWER CABLING FORMULAS
WIRE GAUGE TABLE
SIZE
AWG
AREA
CIR.
MILS
SIZE
MCM*
AREA
CIR.
MILS
18 1620 250 250000
16 2580 300 300000
14 4110 350 350000
12 6530 400 400000
10 10380 500 500000
8 16510 600 600000
6 26240 700 700000
4 41740 750 750000
3 52620 800 800000
2 66360 900 900000
1 83690 1000 1000000
0 105600 1250 1250000
00 133100 1500 1500000
000 167800 1750 1750000
0000 211600 2000 2000000
*Denotes all sizes larger than #0000 are expressed in MCM.
TABLE OF CONVENTIONS:
CMA = Cross-section of wire in circular MIL area.
A = Ultimate drain in amperes.
LF = Conductor loop feet.
MAX AMP = Maximum allowable amperes for given voltage drop.
CMA = Cross section of wire in circulate MIL area.
AVD = Allowable voltage drop.
LF = Conductor loop feet.
K = 11.1 Constant factor for commercial (TW Type) copper wire (KS5482-01).
= 17.4 for aluminum (KS20189)
1. Calculating Wire Size Requirements..................................................CMA= A x LF x K
AVD
2. Calculating Current Carrying Capacity of Wire..........................Max Amp = CMA x AVD
LF x K
SOURCE: HANDBOOK 100-NATIONAL BUREAU OF STANDARDS
NOTE: ALL WIRE #6 AND LARGER IS STRANDED.