Technical Information
Cable Structure Data
VDE standard 0295 specifies that only the maximum single wire diameter and the corresponding highest-permissible electrical
resistance have to be determined for each cable cross-section.
Cables Made of Uninsulated or Tin-Plated Copper Wires
Number of Wires x Wire Diameter [mm]
VDE 0295
Conductor Single wire Stranded
Cross-Section
Class 1
Class 2
[mm²]
FinelyStranded*
Class 5
Extra Finely-Stranded*
Class 6
0.10
14 x0.10
26 x 0.07
50 x 0.05
0.14
18 x 0.10
36 x 0.07
72 x 0.05
0.25
14 x 0.15
32 x 01.0
65 x 0.07
128 x 0.05
7 x 0.25
19 x 0.15
43 x 0.10
88 x 0.07
180 x 0.05
0.34
7 x 0.30
16x 0.20
28 x 0.15
63 x 0.10
129 x 0.07
258 x 0.05
0.75
1 x 1.00
7 x 0.37
24 x 0.20
42 x 0.15
95 x 0.10
196 x 0.07
384 x 0.05
1.00
1 x 1.13
7 x 0.43
32 x 0.20
56 x 0.15
127 x 0.10
258 x 0.07
512 x 0.05
1.50
1 x 1.38
7 x 0.52
30 x 0.25
84 x 0.15
191 x 0.10
385 x 0.07
768 x 0.05
2.50
1 x 1.78
7 x 0.67
50 x 0.25
140 x 015
320 x 0.10
651 x 0.07
1281 x 0.05
4.00
1 x 2.26
7 x 0.85
56 x 0.30
224 x 0.15
512 x 0.10
1036 x 0.07
6.00
1 x 2.77
7 x 1.05
84 x 0.30
192 x 0.20
765 x 0.10
1561 x 0.07
10.00
1 x 3.57
7 x 1.35
80 x 0.40
320 x 0.20
1275 x 0.10
Accessories, Connectors, Cordsets, Splitters
1 x 0.80
Accessories
0.50
10
10
* The number of wires in finely and extra finely-stranded cable structures are preferred values.
Shield Connection
The type of shield connection is primarily decided by the nature of the expected
interference.
1
To suppress electrical fields, the shield must be grounded (1) at one end.
However, interference caused by a magnetic alternating field can only be suppressed if
the shield is connected at both ends (2).
A ground loop, including all its known disadvantages, is created when a shield is
connected at both ends. The useful signal is particularly susceptible to noise on the
reference voltage. Triaxial cables (4) combat this effect. The internal shield is connected
at one end, whereas the external shield is connected at both ends.
2
Interference of this nature when a cable shield is connected at both ends is often reduced
by also connecting one end of the shield to the reference potential via a capacitor (3).
This breaks the ground loop, at least for direct currents and low-frequency currents.
3
4
Refer to General Notes Relating to Product Information
Pepperl+Fuchs Group
www.pepperl-fuchs.com
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Copyright Pepperl+Fuchs
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