Before starting the plasma cutting work a welding operator has to keep certain things in mind: Always wear safety glasses, protective clothing, oil free leather gloves, welding mask and welding helmet before starting your plasma cutting work. Sturdy footwear with rubber soles must be worn. Respiratory protection devices may be required for some operations.
Make sure that the working area is clean and clear of grease, oil and any flammable materials. Wear leather boots to protect your feet. Do not keep matches or lighters in your pockets or anywhere in the work area. Keep the torch tip of your plasma cutter pointed away from you at all times.
A person can get electric shock while using a plasma cutter if he does not follow certain precautionary steps. A person can get electric shock by two reasons. A welding operator can suffer a primary voltage shock or a secondary voltage shock. Primary voltage shock (i.e.230, 460 volts) is the most serious danger because it is much greater than secondary voltage shock (i.e. 60-100 volts). A welding operator gets primary voltage shock while touching a lead inside the welding power source while you have your body or hand in contact with the welder case or other grounded metal. Turning the equipment’s power switch off does not turn power off inside the case. Never remove panels without unplugging the input power cord or turning the power disconnect switch off. Secondary voltage shock comes from touching part of the welding circuit, such as a bare spot on the electrode cable, while also touching the grounded metal work piece. Avoid touching both parts of a circuit at the same time.
When both electricity and compressed air forms a hot plasma arc while cutting various metals, lot of gasses are released due to heated metals. Do not breathe them in. These gases can cause chronic health effects if proper steps are not taken. Respiratory protection devices may be required for some operations. Ventilate the welding area with an exhaust hood positioned on the plasma arc to maintain a safe breathing area.
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