Safety shut-off upon torch contact loss
The safety shutdown on torch contact loss immediately interrupts the arc if the torch contact breaks or unacceptable operating conditions occur. It prevents uncontrolled arc flashovers and protects the equipment and the welder.
Physical-Chemical Operating Principle
The safety shutdown continuously monitors the torch/arc contact. If it breaks or unacceptable operating conditions occur (such as excessive voltage or temperature), the system sends a signal to immediately shut off the arc.
Metallurgical Relevance & Welding Risks
Without this safety function, the arc can continue running uncontrolled, leading to high voltage and temperature. This raises the risk of fires, damage to the equipment, and injury to the welder from intense rays or exploding charge.
Workshop Practice & Action Steps
Make sure the torch/arc cables are properly assembled and show no signs of wear or damage. Regularly check the safety shutdown function by doing a test run of the equipment. If you notice any defects or irregular operating conditions, contact the manufacturer or a qualified technician.