The electric welding operation belongs to special operations, and has strict training and assessment and evidence collection system for the operation qualifications of the operators. Although some skills have been mastered in training during the forensic exchange, there are still many welders who have a low safety awareness in the welding operation and often have unsafe behaviors in violation of the Safety Operating Procedures. Due to the limited professional knowledge of electricians and the common knowledge of safe electricity use, there are many hidden dangers in the field of electric welding. For example, the outer casing of the welding machine is not grounded or the grounding is unreliable. The exposed posts are not insulated according to the regulations, and the lead conductors are exposed. Do not do insulation treatment according to regulations, soak the lead wire in water, etc.
It can be seen that eliminating the hidden dangers of the electric welding work site is the work skill that each welder should master. During the operation, not only to ensure their own personal safety, but also to ensure the personal safety of others, the welder must do the following precautions during the welding operation [1].
Use qualified welding tools
The electric welding tools should be carefully checked before the operation, and the inspection items are as follows:
1. Whether the insulation performance of the electric welder is good;
2. Whether the power line and the welding machine lead wire insulation layer are damaged or deteriorated, and the wires are bare;
3. Whether the first and second side terminals of the welding machine are loose or severely burned;
4. There is no possibility of damage and electric leakage in the welding tongs and special welding gloves. It is forbidden to use if it is unqualified.
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