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14-1. Welding Processes Requiring High Frequency
14-2. Installation Showing Possible Sources Of HF Interference
Best Practices Not Followed
13
13
Sources
of
Direct
High
Radiation
1 High-Frequency Source (welding power
source with built-in HF or separate HF
unit)
2 Weld Cables
3 Torch
4 Work Clamp
5 Workpiece
6 Work Table
OM-253086 Page 70
SECTION 14 – HIGH FREQUENCY
SECTION 1
SECTION 1
1
1
10
9
10
8
9
8
7
7
1
1
Frequency
Sources
of
Frequency
7 Input Power Cable
8 Line Disconnect Device
9 Input Supply Wiring
HIGH FREQUENCY
HIGH FREQUENCY
TIG
TIG
11, 12
11, 12
3
2
3
2
4
5
6
4
5
6
Conduction
of
High
1 High-Frequency Voltage
TIG – helps arc jump air gap between torch
and workpiece and/or stabilize the arc.
14
14
Sources
of
Reradiation
Frequency
10 Ungrounded Metal Objects
11 Lighting
12 Wiring
13 Water Pipes And Fixtures
14 External Phone And Power Lines
of
High
S-0694
S-0694
OM-
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