NGI-Welding & Cutting-Part 02

ELECTRODES CONTENTS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Zinc (Z) Nickel (Ni) Niobium (No) Phosphor (P) Molybdenum (Mo) Aluminum (Al) Sulpher (S)

WELDING POWDERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

FUME HAZARDS ,[object Object],[object Object],[object Object]

METHODS OF WELDING & FUMES HAZARDOUS COMPONENTS WELDING PROCESS Fe, Fluoride Metal arc – mild steel Cr, Ni Metal arc Weld gases Tungsten Inert Gas (TIG)

The inhalation of fumes from the welding or cutting of ZINC galvanized metal may result in “ Metal Fume Fever “ which is characterized by: A raised temperature, aching muscles , shivering and sweating. The symptoms develop in a few hours after exposure to the fumes and persist for approximately 24 hours. ,[object Object],[object Object],METAL FUME FEVER

EXPOSURE LIMIT ,[object Object],[object Object]

WORKING IN CONFINED SPACES ,[object Object]

ARTIFICIAL VENTILATION ,[object Object],[object Object],100 air changes per hour

[object Object],[object Object]

Before any work can be allowed to commence in an enclosed space, the following conditions must be met: ,[object Object],[object Object],[object Object],[object Object],WELDING/CUTTING IN CONFINED SPACES

PRE-OPERATION CHECKS ,[object Object]

[object Object],[object Object],PRE-OPERATION CHECKS

WELDING SHELTER ,[object Object],[object Object],[object Object]

SAFE WORK PRACTICES ,[object Object],[object Object]

SAFE WORK PRACTICES ,[object Object],[object Object],SHOULD BE REMOVED

NGI-Welding & Cutting-Part 02

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NGI-Welding & Cutting-Part 02