What should be done with electrodes when electric arc welding is discontinued for more than one hour?

When electric arc welding is discontinued for more than one hour, electrodes must be removed from their holders and the welding machines should be disconnected from the power source. This practice is vital for several reasons.

First, removing the electrodes helps prevent potential damage or overheating that can occur if they are left in holders for an extended period when not in use. It also eliminates the risk of accidental arcing, which could result from stray electricity if the equipment is left connected to the power source.

Additionally, disconnecting the machine from the power source ensures safety and may prevent electrical hazards from occurring. Given that welding can involve dangerous voltages, taking these precautions is essential for ensuring the safety of the workspace and personnel.

By following these guidelines, welders can maintain a safe working environment and prolong the life of both the electrodes and the welding equipment.