Mamiya Econotig manual Correct Installation, Metal Building Requirements

9-3. Correct Installation

Weld Zone

350 ft

(15 m)

7

50ft

(15 m)

5

61

8

Ground all metal ob- jects and all wiring in welding zone using #12 AWG wire.

Nonmetal

Building

2

8

4

Ground workpiece if required by codes.

11

9

Metal Building

8

8

10

Ref. S-0695 / Ref. S-0695

1	High-Frequency Source (welding power	5 Conduit Joint Bonding and Grounding	Metal Building Requirements
	source with built-in HF or separate HF	Electrically join (bond) all conduit sections	9 Metal Building Panel Bonding Methods
	unit)
		using copper straps or braided wire. Ground	Bolt or weld building panels together, install
Ground metal machine case, work output
		conduit every 50 ft (15 m).
terminal, line disconnect device, input supply,			copper straps or braided wire across seams,
and worktable.		6 Water Pipes and Fixtures	and ground frame.
2 Center Point of Welding Zone		Ground water pipes every 50 ft (15 m).	10 Windows and Doorways
Midpoint between high-frequency source and		7 External Power or Telephone Lines	Cover all windows and doorways with
welding torch.
		Locate high-frequency source at least 50 ft	grounded copper screen of not more than 1/4
3	Welding Zone
			in (6.4 mm) mesh.
A circle 50 ft (15 m) from center point in all		(15 m) away from power and phone lines.	11 Overhead Door Track
directions.		8 Grounding Rod
			Ground the track.
4	Weld Output Cables	Consult the National Electrical Code for spec-
Keep cables short and close together.		ifications.

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