Miller DIVERSION 180 w/Auto-Line Manuale d'uso - Pagina 32
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9-3. Recommended Installation To Reduce HF Interference
6
8
Ground all metal ob-
jects and all wiring in
welding zone using
#12 AWG wire.
Nonmetal
Building
1
High-Frequency Source (welding
power source with built-in HF or
separate HF unit)
Ground metal machine case (clean paint
from around hole in case, and use case
screw), work output terminal, line discon-
nect 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
Keep cables short and close together.
OM-263920 Page 28
Weld Zone
3
50 ft
(15 m)
1
2
4
Ground
workpiece if
required by
codes.
Best Practices Followed
11
5
Conduit Joint Bonding and Grounding
Electrically join (bond) all conduit sections
using copper straps or braided wire.
Ground conduit every 50 ft (15 m).
6
Water Pipes and Fixtures
Ground water pipes 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
Grounding Rod
Consult the National Electrical Code for
specifications.
50 ft
(15 m)
5
8
Metal Building
8
10
7
9
8
Metal Building Requirements
9
Metal Building Panel Bonding
Methods
Bolt or weld building panels together, install
copper straps or braided wire across
seams, and ground frame.
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.
Ref. S-0695