OM-219 Page 27
SECTION 6 – HF IN PLASMA CUTTING
6-1.
High Frequency In Plasma Arc Cutting (PAC)
ÉÉ
ÉÉ
ÉÉ
high_freq2 4/95 – S-0753
1
Plasma Arc Torch
2
High-Frequency Voltage
Used inside torch to ionize gap
between electrode and tip to help
start the pilot arc.
3
Electrode
4
Pilot Arc
5
Tip
6
Shield Cup
1
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
3
5
4
ÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉ
ÉÉÉÉÉÉÉÉÉ
6
2
Work
Plasma Arc Cutting (PAC)
6-2.
Sources Of High-Frequency Radiation From Incorrect Installation
50 ft
(15 m)
S-0754
Sources Of Direct High-Frequency
Radiation
1
High-Frequency Source (Plasma Arc
Cutting Power Source)
2
Cables
3
Torch
4
Work Clamp
5
Workpiece
6
Work Table
Sources Of Conduction Of High
Frequency
7
Input Power Cable
8
Line Disconnect Device
9
Input Supply Wiring
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
9
3
1
Cutting Zone
13
2
4
5
6
8
7
10
11, 12
14
Summary of Contents for Spectrum Plus
Page 4: ......
Page 33: ...OM 219 Page 29 Notes...
