Panasonic Electric Works Nordic AB
MEW01351
Rev: -
Planning Instructions Fire alarm system EBL512 G3, V1.1.x
146
Maximum conductor resistance
5
10
15
20
25
30
35
40
45
0
40
80
120
160
200
240
280
320
Total COM loop unit current consumption
C
o
n
d
u
c
to
r
re
s
is
ta
n
c
e
Ohm
mA
Figure 30. Graphs showing the total conductor resistance in relation to the
COM loop units' total current consumption.
NOTE!
The graphs start at "0
mA" but graph 1 ends at "320 mA" and graph 2 ends at "350 mA". End of
graph = max. allowed loop current. (42.3 ohm = 863 m cable length.)
NOTE!
The graphs are valid for the cable type ELQYB 2 x 1 mm
(0.75mm
2
) with the conductor resistance 24.5 ohm / km. The total
conductor resistance (ohm) = L conductor (ohm) + C conductor
(ohm).
2 x 1 mm (0.75 mm
2
)
24.5 ohm / km
