Spec Sheet
ref TLL-ENG-MATTS-0076 (dated
21/06/2007)
ELECT RICAL DAT A
Nominal acc. to Cat.5 (at 20°C)
NOT ES
- Silicone rub ber insula tion espe cially fo r circuit
integrity cable s
- Structured cabling Cha racteristic Im peda nce is
no rm a lly within (100 ± 5) , due to the insulation system
this is not a chieva ble all the tim e
- Structured cabling syste m s m inim um for c=65%, due
to the insula tion (PE + Sil Rbr) system this is not
achieve d, that is nvp 0,57
- Cat5 (95) spe cificatio n: not the Ca t5e of toda y i.e .
giga bit ethernet
- W hen used in a 100m Cha nne l, 90m + 10m patch
cords , the Class D (95) is fit for som e purpose s: it is
advis able to a pprove a 100m sample and pe rfo rm a
tria l on the syste m b efore ins ta lla tion
1
2
3
4
5
ELECT RICAL PROPERT IES AT 20°C ± 5°C
Loop Resistance
≤
110Ω/km
Resistance
Unbalance
≤ 2%
Insulation Resistance (500 V) 1 minute
≤ 2000 M
Ω *km
Mutual Capacitance At 800 Hz
Nom.
nF/km
Capacitance
Unbalance
(Pair/Ground)
≥ 1600
pF/km
Characteristic
Impedance
(At 10) MHz
(100 ± 15)
Ω
Nominal Velocity of
Propagation
ca. 57%
Test Voltage
(DC, 1 min) core/core and
core/screen
1000 V
Transfer Impedance At 10 MHz 5 m Ω /m
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