Final answer:
When using electrode holders with 10 mm or larger carbon electrodes, it is important to use the correct air hose and fittings. A heavy-duty air hose and compatible fittings are recommended to ensure a secure and leak-free connection.
Step-by-step explanation:
When using electrode holders with a capacity of 10 mm (3/8") diameter or larger carbon electrodes, it is recommended to use an air hose and fittings that can supply the necessary air flow and pressure to the holder. The specific air hose and fittings required may depend on the type of electrode holder being used, as well as the air compressor system in place. In general, a heavy-duty air hose made of a durable material such as rubber or PVC is suitable for this application. The fittings should be compatible with the chosen air hose and electrode holder, ensuring a secure connection with no air leakage.