The 2013 edition updates the material constants for the fusing formula (thermal capacity). It provides adjusted constants for copper, aluminum, steel, and copper-clad steel. Notably, it includes higher allowable short-circuit temperatures for modern high-strength alloys.
Are you designing for a or auditing an existing grid ?
: Provide a systematic procedure for designing a grounding grid that keeps voltage gradients within safe limits.
: The maximum touch voltage found within the meshes of a grounding grid. Human Body Current Limits ieee standard 80-2013 pdf
Due to the inactive status, copies may become harder to obtain over time. IEEE recommends checking directly with authorized distributors or monitoring the IEEE SA website for updates on the revised edition.
Overall, IEEE Standard 80-2013 is a comprehensive guide that provides essential guidelines for designing, installing, and maintaining effective electrical grounding systems. Its adoption has contributed significantly to improving safety, reliability, and performance in industrial and commercial facilities worldwide.
IEEE 80-2013 follows a systematic design procedure to determine that a grounding grid is safe: The 2013 edition updates the material constants for
Using this, the standard calculates the maximum tolerable touch and step voltages by incorporating the resistance of the human body (
). Not all fault current returns through the earth grid; a significant portion may return via overhead shield wires or underground cable sheaths. The standard introduces the current division factor ( Sfcap S sub f ) to account for this division:
If you're looking for a downloadable PDF copy of IEEE Standard 80-2013, you can try the following options: Are you designing for a or auditing an existing grid
IEEE Std 80-2013 (Revision of IEEE Std 80-2000)
Without the standard, you would never know the difference until the first fault kills a technician.
