Miller Electric TM-353E manual Correct Installation

8-3. Correct Installation

	Weld Zone
50 ft
(15 m)	50 ft
	(15 m)
	4

6

5

1

2

7

3

7	Ground All
	Metal Objects
	And All Wiring
	In Welding Zone
	Using #12 AWG	Ground
	Wire
		Workpiece
		If Required
	Nonmetal	By Codes
	Building

7

10

9

8

7

Metal Building

Ref. S-0695 / Ref. S-0695

1HF Source (Welder With Built-In HF Or Separate HF Unit)

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.

10Overhead Door Track Ground the track.

TM-353 Page 40 Syncrowave 250