Tweco Tri-Arc Serie - Manual (Page 7)

2-1
SECTION 2: SAFETY AND HEALTH
Safe practices in welding and cutting processes, such as air carbon-arc, are covered
in ANSl Z49.1, “Safety in Welding and Cutting”, and ANSl 249.2, “Fire Prevention in
Use of Welding and Cutting Processes.” Air carbon-arc operators and their supervisors
should adhere to the safe practices discussed in these documents.
Other hazards in arc welding and cutting are briefly discussed in this section.
2.01 Proper Installation, Use, and Maintenance
Serious injury or death may result if gouging and cutting equipment is not properly
installed, used, and maintained. Misuse of this equipment and other unsafe practices
can be hazardous. The operator, supervisor, and helper must read and understand the
following safety warnings and instructions before installing or using any air carbon-arc
torch or equipment.
The gouging/cutting process is used in many potentially dangerous environments,
such as elevated heights, areas with limited ventilation, close quarters, areas around
water, hostile environments, etc. The operator must be aware of the dangers associ-
ated with working in these types of conditions. The operator must be trained in safe
practices for his work environment and be under competent supervision.
It is essential that the operator, supervisor, and others in the work area be aware of the
dangers of the air carbon-arc process. Training and proper supervision are important
for a safe work place. Keep these instructions for future use. Additional recommended
safety and operating information is referenced in each section.
2.02 Electrodes
WARNING
ELECTRIC SHOCK CAN CAUSE INJURY OR DEATH
Install and maintain equipment in accordance with the National Electrical
Code (NFPA 70) and local codes. Do not service or repair equipment with
power on. Do not operate equipment with protective insulators or covers
removed. Service or repair to equipment must be done by qualified and/or
trained personnel only
Keep carbon electrodes dry. If electrodes become damp, bake them for 10 hours at
300˚ F (176˚ C). Wet electrodes may shatter.