cable amp ratings

["Mark Hanson" <mhanson@valcom.com>]

My Howard Sams book of Electronic Tables shows:
#4 is .2485 ohms per 1000' 95A max
#2 is .1563 ohms per 1000' 150A max
#1 is .1239 ohms per 1000' 190A max
1/0 is .09825 ohms per 1000' 260A max
2/0 is .07793 ohms per 1000' 300A max

So number 2 cable is fine for a 120V 2000-3000lb vehicle with a ADC 8 or 9"
motor. The motor to controller cables need to be twice as thick 2/0 (2X
amps) and be as short as possible for back emf spiking and I2R losses at
pulsed current. The motor and power cables must be ty-wrapped together if
you like listening to AM.

-----Original Message-----
From: Victor Tikhonov [mailto:vtikhono@lsil.com]
Sent: Tuesday, May 28, 2002 9:41 PM
To: ev
Subject: Welding cable amp ratings


Listers,

Does anyone know a (web) source for reliable info about a welding
cable current handling capability? Net search didn't yields anything
meaningful to me. I want to know the voltage drop on X feet
per Y amps (whatever data available) for standard gauge sizes,
(gauge 4, 2, 1 and 1/0 will be enough).

Thanks in advance for leads.

Victor
'91 ACRX