Table des Matières
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9-1. Welding Processes Requiring High Frequency
9-2. Incorrect Installation
13
Sources of Direct High-Frequency
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-303 Page 22
SECTION 9 − HIGH FREQUENCY
50 ft
(15 m)
10
9
8
7
1
Sources of Conduction of High
Frequency
7
Input Power Cable
8
Line Disconnect Device
9
Input Supply Wiring
1
Work
TIG
Weld Zone
11, 12
3
2
4
5
6
1
High-Frequency Voltage
Helps arc jump air gap between
torch
and
workpiece
stabilize the arc.
high_freq1 11/96 − S-0693
14
Sources of Reradiation of High
Frequency
10 Ungrounded Metal Objects
11 Lighting
12 Wiring
13 Water Pipes and Fixtures
14 External Phone and Power Lines
and/or
S-0694
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Table des Matières
