Page 24 - Electrical Safety of Low Voltage Systems
P. 24
6 Chapter One
FIGURE 1.5 TN-C-S grounding system. Neutral and protective functions are
combined in a single conductor in a part of the electrical system.
1.2.24 Prospective Touch Voltage
The prospective touch voltage V ST is defined as the potential difference
between the faulted ECP and the earth occupied by the person, at the
distance of1mfromthe ECP, when the ECP is not being touched by
the person.
FIGURE 1.6 TN-S grounding system. Separate neutral and protective
conductors are used throughout the electrical system.
