ANDELI TIG Series Instruction Manual page 8

The arc welding equipment shall be connected into public power supply system with the
method recommended by the manufacturer. In case of interference, please take addition
preventive measures, such as connecting filter with public power supply system. Ensure to
consider power able shielding for fixed arc welding equipment. The power cables can be
shielded with the metal pipe or other equivalent methods. Ensure to keep electrical continuity for
shielding.
 Maintenance of arc welding equipment
Ensure to perform routine maintenance for arc welding equipment according to the method
recommended by the manufacturer. When welding equipment runs, all equipment inlets,
auxiliary doors and panels shall be closed and tightened appropriately. The arc welding
equipment cannot be changed in any form, unless the relevant change and adjustment are
allowed in the manual. The spark gap of arc initiation device and arc stabilizing device shall be
adjusted and serviced according to the suggestion of manufacturer.
 Welding cable
The welding cable shall be short as much as possible and close to each other. Moreover,
welding cable shall be next to or close to ground cable.
 Equipotential lap
Pay attention to lapping of metal objects in the surrounding. The lapping of metal objects
and workpiece will increase job hazard. When the operator touches these metal objects and
electrode, he may suffer from electrical shock. The operator shall be insulated from these metal
objects.
 Workpiece earthing
The workpiece may be not provided with earthing because of electrical safety or workpiece
position, such as hull or building steel frame. When earthing is available for workpiece, radiation
emission may be reduced.But it is not always the case. Therefore, we must prevent the increased
risk of electric shock of users caused by the workpiece earthing or the damage of other electric
equipment. When necessary, some workpiece should be directly earthed, but directly grounding
is not allowed in some countries, user can achieve this effect only by selecting the appropriate
capacitor according to the regulations of the host countries.
 Shielding
- 7 -