6-3. Correct Installation
Weld Zone | 6 |
50 ft |
|
(15 m) | 50 ft |
| (15 m) |
| 4 |
5
1
2
7
3
7
Ground All |
|
| |
Metal Objects |
|
| |
And All Wiring |
|
| |
In Welding Zone |
|
| |
Using #12 AWG | Ground |
| |
Wire |
| ||
Workpiece |
| ||
|
| ||
| If Required | 8 | |
Nonmetal | By Codes | ||
| |||
|
| ||
Building |
|
|
7
7
10
Metal Building 9
Ref.
1HF Source (Welder With
Ground metal machine case, work output terminal, line disconnect device, input supply, and worktable.
2 Welding Zone And Centerpoint
A circle 50 ft (15 m) from centerpoint between HF source and welding torch in all directions.
3 Weld Output Cables
Keep cables short and close together.
4 Conduit Joint Bonding And Grounding
Electrically join (bond) all conduit sections using copper straps or braided wire. Ground conduit every 50 ft (15 m).
5 Water Pipes And Fixtures
Ground water pipes every 50 ft (15 m).
6 External Power Or Telephone Lines
Locate HF source at least 50 ft (15 m) away from power and phone lines.
7 Grounding Rod
Consult the National Electrical Code for specifications.
8 Metal Building Panel Bonding Methods
Bolt or weld building panels together, install copper straps or braided wire across seams, and ground frame.
9 Windows And Doorways
Cover all windows and doorways with grounded copper screen of not more than 1/4 in (6.4 mm) mesh.
10 Overhead Door Track
Ground the track.
