The danger of electric shock is maximum while inserting electrode into the holder.

Electric shock can occur when a person comes into contact with an electrical current. This can happen due to various reasons, such as faulty equipment, improper wiring, or human error. In the context of welding, electric shock is a significant risk that welders need to be aware of and take precautions to avoid.

Risk Factors
- Welding involves the use of high voltage electrical currents, typically ranging from 20 to 100 volts. These currents can cause severe harm if they pass through a person's body.
- When inserting an electrode into the holder, there is a greater risk of electric shock because the welder's hands are in close proximity to the electrical circuit.
- The electrode holder is the part of the welding equipment that holds the electrode and conducts the electrical current. If the welder accidentally touches the electrode or the holder while it is energized, they can receive a dangerous electric shock.

Reasons for Maximum Danger
- During the process of inserting the electrode into the holder, the welder's hands are in direct contact with the equipment, increasing the chances of accidental contact with the electrical circuit.
- The welder may inadvertently touch the energized electrode or the holder while trying to secure the electrode, leading to electric shock.
- The body's natural moisture, such as sweat or dampness from the working environment, can increase the conductivity of the skin, making it easier for the electrical current to pass through the body.

Precautions
- To minimize the risk of electric shock, welders should always wear appropriate personal protective equipment (PPE), such as insulated gloves and boots, to provide a barrier against electrical currents.
- Before inserting the electrode into the holder, it is essential to ensure that the welding equipment is turned off and properly grounded.
- Welders should be trained on proper handling techniques and be aware of the potential dangers associated with electric shock.
- Regular inspections and maintenance of welding equipment should be conducted to identify and address any faulty wiring or equipment.

In conclusion, the danger of electric shock is maximum while inserting the electrode into the holder during welding. Welders need to be cautious, follow safety protocols, and use appropriate PPE to minimize the risk of electric shock.