20
21
-1
1
6
Power Supply PS1000-A6-24.10
Terminology and Abbreviations
2
Terminology and Abbreviations
PE and symbol
PE is the abbreviation for
P
rotective
E
arth and has the same meaning
as the symbol .
Earth, Ground
This document uses the term
earth
which is the same as the U.S. term
ground
.
T.b.d.
To be defined, value or description will follow later.
AC 230V
A figure displayed with the AC or DC before the value represents
a nominal voltage with standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full
(13.7V) or flat (10V)
230Vac
A figure with the unit (Vac) at the end is a momentary figure without
any additional tolerances included.
50Hz vs. 60Hz
As long as not otherwise stated, AC 100V and AC 230V parameters
are valid at 50Hz mains frequency. AC 120V parameters are valid
for 60Hz mains frequency.
may
A key word indicating flexibility of choice with no implied preference.
shall
A key word indicating a mandatory requirement.
should
A key word indicating flexibility of choice with a strongly preferred
implementation.