Miller XMT 300 CC/TIG Manual del usuario - Página 31
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1
High-Frequency
Source
(Welder
With
Built-In HF Or
Separate
HF
Unit)
Ground metal
machine case,
work
output
terminal,
line
disconnect
device,
input
supply,
and worktable.
2
Center Point Of
Welding
Zone
Midpoint
between
high-frequency
source
and
welding
torch.
3
Welding
Zone
A circle 50 ft
(15 m)
from
center
point
in all
directions.
4
Weld
Output
Cables
cables short and close
toaether.
5
Conduit Joint
Bonding
Electrically join (bond)
all conduit sections
using
copper
straps
or
braided wire. Ground
conduit
every
50 ft
(15 m).
6
Water
Pipe
And Fixtures
Ground
water
pipe
every 50 ft
(15 m).
7
External Power Or
Telephone
Lines
Locate
high-frequency
source
at least 50 ft
(15 m)
away from
power and
phone
lines.
8
Metal
Building
Panel
Bonding
Methods
Bolt
or
weld
building
panels together,
install
copper
straps
or
braided
wire
across
seams, and
ground
frame
Figure
7-3.
Correct Installation
/
/
Nonmetal
\~uilding
/
/
Metal
Building
10
9
Grounding
Rod
S-0695
Consult the National Electrical Code for
specifications.
10 Windows And
Doorways
Cover all
windows and
doorways
with
grounded
copper
screen
of
not
more
than
1/4 in
(6.4 mm)
mesh.
11
Overhead Door Track
Ground the track.
OM-2204
Page
25