HSE Guide on Hand Protection Purpose Hand protection is essential to prevent injuries caused by cuts, burns, chemicals, sharp objects, vibration, heat, electricity, and manual handling activities. Proper glove selection and safe work practices help reduce workplace accidents and occupational illnesses. Common Hand Hazards Workers may be exposed to: Cuts and punctures from sharp tools or materials Chemical burns and skin irritation Heat and cold exposure Electrical shock Abrasions and blisters Crushing or pinching injuries Biological contamination Vibration-related injuries Types of Hand Protection 1. General Purpose Gloves Used for light material handling and basic protection against dirt and minor abrasions. 2. Cut-Resistant Gloves Used when handling: Sharp metals Glass Blades Steel materials 3. Chemical-Resistant Gloves Used during: Chemical handling Cleaning operations Fuel or solvent work Common materials: Nitrile Neoprene PVC Rubber 4. Heat-Resistant Glove...
Piping Brazing Problems in Air Conditioning Systems
Most Refrigeration Failures Start Long Before the Compressor Stops In many HVAC projects, brazing is treated as a routine installation activity. Cut the pipe. Apply heat. Join the copper. Move on. But experienced technicians know something important: A refrigeration system is only as reliable as its brazed joints. Because one poor brazing practice can quietly introduce: • Moisture • Oxidation • Contamination • Micro leaks • Weak joints • Acid formation And months later, the result becomes: • TXV blockage • High discharge temperatures • Oil breakdown • Refrigerant loss • Compressor failure Most compressor failures don’t begin electrically. They begin mechanically and chemically inside the piping system.
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