PE
– PVC
PCM ( T1 ) Switch board Cable
Figure：
1.Application：This
cable is used. for interconnecting between frames of PCM equipments
with
100W
characteristic impedance.
2.Conductor：Annealed bare copper wire.
3.Insulation：PE (Polyethylene)
4.Twist：Two wires twisted to form a pair.
5.Assembly：Suitable
number of pairs assembled to form a cable core.
6.a.Mylar-aluminum
tape for 1 pair. b.Soft copper tape for 5 pairs and above.
7.Sheath：PVC
(polyvinyl Chloride)
8.Structure：
Conductor
|
Pair
(P)
|
Insulation
|
Cable
core diameter
|
Sheath
|
Diameter
overall
|
Standard
|
|
Diameter(mm)
|
|
Thickness(mm)
|
approx.
(mm)
|
Thickness(mm)
|
(mm)
|
Length(M)
|
|
0.5
|
1
|
0.28
|
2.5
|
0.5
|
Max.3.6
|
200
|
|
0.5
|
8
|
0.26
|
6
|
1.0
|
approx.9
|
500
|
|
0.5
|
12
|
0.26
|
7
|
1.0
|
approx.10
|
500
|
|
0.5
|
30
|
0.26
|
11
|
1.0
|
approx.14
|
500
|
9.Characteristics：
|
Items
|
Specification
|
|
Conductor Resistance
|
Max.93.5W
/ Km (20℃)
|
|
Insulation Resistance
|
Min.10000MW
- Km(20℃,DC 500V
/ 1 min.)
|
|
Dielectric Strength
|
DC 300V / 3sec.(60Hz)between conductors
|
|
Static Capacitance
|
Avg.
|
51.6±
2.5nF / Km (1KHz)
|
|
Indivual
|
51.6±
3.7nF / Km (1KHz)
|
|
Attenuation.(772 KHz)
|
Max. Avg.19.5 dB / Km for 1 pair
|
|
Max.35 dB / Km for
8P, 12P , 30P
|
|
Characteristic Impedance
|
100 ±
10W
(772 KHz)
|
|
NEXT (772 KHz)
|
m ¾
△
³
56 dB / 500M (less than 12paire)
|
|
m ¾
△ ³
60 dB / 500M (30paire)
|
|
m：avg.value
|
|
△：Standard difference
|
10.Marking：TATUNG CO. PCM-E1 0.5 ´
□
P Year □
M
|
