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Technical terms, abbreviations, and formula symbols
1
10 | 42
Building Technologies
A6V10349616_i_en_--
Fire Safety
2019-01-18
1.3 Technical terms, abbreviations, and formula
symbols
Term
Explanation
AI
Alarm indicator
ASA
Advanced Signal Analysis
BetrSichV
Betriebssicherheitsverordnung, national implementation in
the Federal Republic of Germany of Directive 2009/104/EC
on the use of work equipment
ES
Product version
FDnet/C-NET
Addressed detector line
FDnet-Ex/C-NET-Ex Addressed detector line in a potentially explosive
atmosphere downstream of a line adapter (Ex) FDCL221-
Ex
LED
Light-emitting diode
Symbol
Meaning
C
0
Maximum external capacity
C
C
Maximum permissible cable capacitance
C
i
Maximum internal capacity
I
0
Maximum output current
I
i
Maximum input current
L
0
Maximum external inductivity
L
C
Maximum permissible cable inductance
L
i
Maximum internal inductivity
P
0
Maximum output power
P
i
Maximum input power
R
C
Resistance of the connection cable
T
a
Ambient temperature in a potentially explosive atmosphere
U
i
Maximum input voltage
U
m
Maximum r.m.s. value of the alternating voltage.
Maximum permissible voltage of an associated item of
electrical equipment without canceling the energy limitation.
U
0
Maximum output voltage
You will find more technical terms in the glossary at the end of this document.
The symbols used correspond to the EN 60079-11 standard.