IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System
NORMA vydána dne 28.12.2012
Designation standards: IEEE 81-2012
Note: NEPLATNÁ
Publication date standards: 28.12.2012
The number of pages: 86
Approximate weight : 289 g (0.64 lbs)
Country: International technical standard
Kategorie: Technické normy IEEE