a protection device, used in arc welding, for shielding the eyes, face, and neck. a helmet is equipped with a suitable filter plate and is designed to be worn on the head. hertz - hertz is often referred to as "cycles per second." in the united states, the frequency or directional ...
fumes, is wearing respiratory equipment or • The operator should never wind the wel- an air-supplied helmet. ding cables around his body; • When welding must be performed outside • The welding gun should never be pointed the normal conditions of working with an in- at the operator ...
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数和氩气体会增加危险Properweldingclothessuchassleeves,capesleeves, aprons,andahelmetshouldbewornforprotection.穿适当的焊接服装例如袖子,护 袖,围裙,头盔将保护身体。Screensandprotectivebarriersshouldbeinplace toprotectnon-weldersinthearea.防晒霜和防护墙在焊接区域应该是保护非焊工。Sunscre encanbeusedtoprotectex...