8.1 Allowable touch voltage 8.2 Allowable step voltage 8.3 Reduction factors (e.g., crushed rock surface layer)
6.1 Division of fault current between grid and neutral 6.2 Asymmetrical current factor (decrement factor) 6.3 Current split factor (grid current vs. remote earth) ieee std 80 2013
13.1 Acceptance tests 13.2 Periodic testing 13.3 Ground resistance measurement (fall-of-potential method) ground potential rise (GPR)
3.1 Special terminology for this guide (e.g., ground potential rise (GPR), touch voltage, step voltage, mesh voltage, transferred voltage) ieee std 80 2013