This document discusses voltage measurements and conversions between different voltage measurements. It shows that the root mean square (Vrms) voltage is 0.707 times the peak (Vmax) voltage and 0.354 times the peak-to-peak (Vp-p) voltage. As an example, it calculates that for a 240Vrms power system, the peak voltage would be 339V and the peak-to-peak voltage would be 678V.

1. 1
Vrms = × Vmax
2

2. V rms = 0.707 V max
and
Vrms = 0.354 Vp-p

5. If
V rms = 0.707 V max
and
Vrms = 0.354 Vp-p
Vrms Vrms
Then Vmax
=
and
Vp-p =
0.707 0.354

6. 240 240
So For 240V, Vmax
=
and
Vp-p =
0.707 0.354
= 339V =678V