Question

 Enumerate main causes of electrical hazards. Discuss preventive measures.

18 Feb 2026
Answer :
Word Count : 1147
Electrical hazards are among the most serious risks in workplaces, especially in industries such as manufacturing, construction, mining, power generation, healthcare, and even offices. Electricity is indispensable for modern operations, yet it poses significant dangers including electric shock, burns, fires, explosions, and even death. In the context of Occupational Health and Safety (OHS), understanding the main causes of electrical hazards and implementing effective preventive measures is essential to protect workers, equipment, and property. The main causes of electrical hazards in workplaces can be enumerated as follows: One major cause is damaged or defective electrical equipment and wiring. Over time, insulation may crack, fray, or deteriorate due to heat, moisture, chemical exposure, mechanical stress, or aging. Exposed conductors increase the risk of electric shock and short circuits. Damaged cords, broken plugs, loose connections, and faulty switches are common sources of accidents. Another significant cause is improper installation of electrical systems. Electrical installations that do not comply with safety standards, codes, or specifications may result in overloading, short circuits, and grounding failures. Incorrect wiring, undersized conductors, and poor earthing systems can lead to overheating and fire hazards. Overloading of circuits is also a common cause of electrical hazards. When too many devices are connected to a single circuit, or when equipment draws more current than the circuit is designed to handle, overheating occurs. This can melt insulation, damage equipment, and start electrical fires. Overloading often results from lack of proper load assessment and inadequate electrical design. Poor maintenance practices contribute significantly to electrical hazards. Failure to conduct regular inspections and testing of electrical systems allows minor defects to go unnoticed until they cause serious incidents. Lack of preventive maintenance increases the likelihood of equipment failure, insulation breakdown, and malfunctioning protective devices. Inadequate grounding and bonding systems represent another major cause. Proper grounding ensures that excess electrical energy is safely directed into the earth, reducing the risk of shock. If grounding is absent or improperly installed, fault currents may pass through a person’s body, leading to severe injury or death. Contact with live electrical parts is a direct cause of many accidents. Workers may accidentally touch energized components due to lack of guarding, improper isolation, or insufficient awareness. This is
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