BUG-O Systems BVW-1000 - Manual (Page 5)

4
lead to fire hazard. In addition, the welding operation near the pipeline for the fuel gas
should be forbidden and the fire fighting equipment should be equipped instantly.
B. When the compressed gas is needed in the work site, specific measures must be
taken to avoid the occurrence of execrable incidences. Corresponding items can be
referred to the “Welding and Cutting Safety” (ANSI standard A49.1) and the operation
instructions.
C. When the welding operation is not conducted, be sure that the electrode circuit does
not contact with the workpiece or the ground. A sudden contact may lead to overheat
and then the fire.
D. When we do not take proper measures and do not make sure whether some
combustible or poisonous gas may be generated, the heating, cutting or welding of a
oil tank, barrel or other vessels are all forbidden. The explosion may occur even when
it is cleaned. You can purchase the “Safe Practices for the Preparation of Containers
and Piping for Welding and Cutting” from the American Welding Society (AWS) and
the code is AWSF4.1.
E. Make sure that the empty casters or vessels are exhausted totally before the heating,
cutting or welding operation. Otherwise, there is a possibility to result in explosion.
F. There is sparks and spatters in the welding course, the welding worker must put on
the oil-free protection clothes, such as fur-lined gloves, dark shirt, trapped pants,
high-waist shoes and cap. When the welding operation is conducted at abnormal
positions or narrow places, wearing earplug is also necessary. In the narrow area, the
protection eyeshade with lateral shade is also needed.
G. During the welding operation, the connection between the working cable and the
workpiece should be as close as possible. When the working cable is connected with
the building structure or other places away form the welding area, it is liable to make
the welding current flow through the lifting chain, the lifting rope or some other
stand-by circuit and this will lead to fire or the overheat of the lifting chain until its
dropping.
5. Cylinder has a danger of explosion
A. Only gas cylinders containing accurate compressed shielding gas for welding can be
used, and the regulation of the gas pressure must be conducted correctly. Moreover,
all used hoses and accessories must meet the application requirements and be in
good condition.
B. Utilize the tripod or the fixed support to fasten the gas cylinder and keep it in the
vertical position. The gas cylinder should locate at:
a) the place that may cause beaten or physical damage.
b) the place away at a sa
fe distance from the welding or cutting operation, the
gaseous heat resource, fire and spatters.
C. The contacts of the covered electrode, the electrode holder of some other charged
objects to the gas cylinder are forbidden.
D. Worker’s head and face should not face the export of gas valves when they are
screwed open.
E. The valve protection should be kept at correct place and be screwed tightly unless it