Environment; Location; Electrical Input Connections - Thermal Arc 201 TS Service Manual

SAFETY AND INSTALLATION

3.04 Environment

These units are designed for use in environments with increased hazard of electric shock. Examples of environments
with increased hazard of electric shock are:
A. In locations in which freedom of movement is restricted, so that the operator is forced to perform the work in a
cramped (kneeling, sitting or lying) position with physical contact with conductive parts.
B. In locations which are fully or partially limited by conductive elements, and in which there is a high risk of unavoidable
or accidental contact by the operator.
C. In wet or damp hot locations where humidity or perspiration considerably reduces the skin resistance of the human
body and the insulation properties of accessories.
Environments with increased hazard of electric shock do not include places where electrically conductive parts in the
near vicinity of the operator, which can cause increased hazard, have been insulated.

3.05 Location

Be sure to locate the welder according to the following guidelines:
• In areas, free from moisture and dust.
• Ambient temperature between 14°F (-10°C) to 104° F (40° C).
• In areas, free from oil, steam and corrosive gases.
• In areas, not subjected to abnormal vibration or shock.
• In areas, not exposed to direct sunlight or rain.
• Place at a distance of 12" (300mm) or more from walls or similar that could restrict natural air flow for cooling
Thermal Arc advises that this equipment be electrically connected by a qualified electrician.

3.06 Electrical Input Connections

ELECTRIC SHOCK can kill; SIGNIFICANT DC VOLTAGE is present after removal of input power.
DO NOT TOUCH live electrical parts.
SHUT DOWN welding power source, disconnect input power employing lockout/tagging procedures. Lock-out/tagging
procedures consist of padlocking line disconnect switch in open position, removing fuses from fuse box, or shutting
off and red-tagging circuit breaker or other disconnecting device.
• Electrical Input Requirements
Operate the welding power source from a single-phase 50/60 Hz, AC power supply. The input voltage must match one
of the electrical input voltages shown on the input data label on the unit nameplate. Contact the local electric utility
for information about the type of electrical service available, how proper connections should be made, and inspection
required. The line disconnect switch provides a safe and convenient means to completely remove all electrical power
from the welding power supply whenever necessary to inspect or service the unit.
Do not connect an input (WHITE or BLACK) conductor to the ground terminal.
Manual 0-5148
THERMAL ARC 161STL, 201TS
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WARNING
WARNING
3-5 Safety and Installation