Machine Grounding - Lincoln Electric CLASSIC I SVM134-A Service Manual

A-6 A-6
INSTALLATION

MACHINE GROUNDING

FIGURE A.1 - GROUND STUD LOCATION
According to the United States National Electrical
Code, the frame of this portable generator is not
required to be grounded and is permitted to serve as
the grounding means for cord connected equipment
plugged into its receptacle.
When the Classic I is mounted on a truck or a trailer,
the machine generator ground stud MUST be securely
connected to the metal frame of the vehicle. See
Figure A.1. The ground stud is marked with the ground
symbol.
Some state, local, or other codes or unusual operating
circumstances may require the machine frame to be
1
grounded. It is recommended that you determine the
extent to which such requirements may apply to your
particular situation and follow them explicitly. A
1. Ground Stud
machine grounding stud marked with the symbol
is provided on the welding generator frame foot. See
Figure A.1. (If an older portable welder does not have
a grounding stud, connect the ground wire to an
unpainted frame screw or bolt).
In general, if the machine is to be grounded it should be
connected with a #8 or larger copper wire to a solid
earth ground such as a metal water pipe going into the
ground for at least ten feet and having no insulated
joints, or to the metal framework of a building which has
been effectively grounded. The U.S. National Electrical
Code lists a number of alternate means of grounding
electrical equipment.
WARNING
Do not ground the machine to a pipe that carries explo-
sive or combustible material.
CLASSIC I