Safety Against Overvoltages
Overvoltages are unwanted potentials occurring in electrical systems between a phase conductor and the earth or ground, or between phase conductors having a peak value greater than the peak of …
Arc Flash Incident – 13.8 kV Indoor Switchgear Part II
Accumulation of moisture inside the 13.8 kV main bus and insulation tracking caused another arc-flash incident on the 13.8 kV Indoor Switchgear. An annual preventive maintenance was scheduled prior to …
Grounding and Bonding Permitted Methods
Grounding is one of the most taken for granted provision of the Philippine Electrical Code. The incompetence of Electrical Inspectors make this practice worst. I inspected the grounding system of …
Arc Flash – Simplified Two-Category Clothing
The 2015 edition of NFPA 70E has a simplified approach to provide minimum PPE for electrical workers within facilities with large and diverse electrical systems. The simplified clothing categogies listed …
Why We Perform A VLF Test?
ATE has provided a very good reasons on this article why high voltage withstand tests on cables are necessary. Past practices involved HVDC Hi-pot or DC leakage current methods. They …
Power Line Safety
Safety is everybody business. I came across at this informative video which is a demonstration of the hazards associated with high voltage electricity. Presentation illustrates electrical arc flash, electrical faults, …