INDUSTRIAL
Instrument Cable Technology
Instrumentation cables are required to transmit ‘clean’ signals
another conductor. The most effective method of reducing
within industrial environments, often where there is a high level of
interference of electrostatic and electromagnetic origin is to form the
electromagnetic interference through potentially hazardous areas.
two wires carrying the instrument into a twisted pair. This ensures
In order to achieve accurate process control, it is important that
the voltages induced in the two wires are approximately equal and
signals to and from machines are uncorrupted.
opposite, so that they cancel each other out.
The challenge: Noise rejection
Additional protection against electrostatic interference is achieved
Common Mode noise occurs due to a difference in potential
by the use of a total coverage conducting screen.
between conductors used for earthing the system at different
The solution: Olex Dekoron® design
locations. This potential difference causes currents to flow in the
Olex Dekoron ® screened instrumentation cables are screened with
conductors of screens of the cable, which interfere with the signal.
a tape of aluminium-coated polyester film. For multipair applications
This type of noise is normally prevented by using a common earth
where electrostatic crosstalk is likely, such as where some pairs
for all parts of the system, prefereably at the equipment end, to
operate at higher potential than others, cables are available with the
which all circuits and screens are connected.
pairs individually screened with aluminium-coated polyester films.
Crosstalk is the transfer of signal from one pair to another in the
All screens in cables are provided with a tinned annealed copper
same cable due to electromagnetic and/or electrostatic effects.
drain wire to equalise potential along the screen and to allow easy
This is reduced by making the lay lengths with which the pairs are
connection to earth. Individual screens are electrically separated
twisted differ between adjacent pairs, so that in a long length of
from each other by a polyester separator tape to prevent circulating
cable each conductor is subject to the same influence from every
currents which could cause common mode noise.
other conductor and any induced noise is cancelled.
Transmission characteristics
The pairs and triples of Olex Dekoron ® cables are twisted to a lay
length of not more than 75mm for single pair and single triple cable.
In the multipair overall screened cables the lays are staggered to
minimise the crosstalk.
Electromagnetically induced noise is due to an induced e.m.f.
in the signal-carrying conductor due to an alternating magnetic field
such as that existing around a conductor carrying a heavy electric
The low conductor resistance, inductance and capacitance of
Dekoron ® make it ideal for direct current and alternating current
frequencies up to 10kHz, distances of up to 10 kilometres and lowmedium speed digital transmission.
For frequencies exceeding 10kHz or for high speed data transmission
over long distances, Dekoron ® cables can be supplied with low loss
insulation materials subject to special order.
current. Although such currents are generally at 50Hz, which can be
filtered out in the equipment, harmonics of very much higher
frequencies can be produced, particularly where electric motors
and welding plants are in use.
Electrostatically induced noise is due to an induced e.m.f. in the
signal-carrying conductor due to the capacitance between it and
Intrinsic safety
The identification colour light blue is specified for the sheathing of
cables containing intrinsically safe circuits. Olex Dekoron ® cables can
be supplied with a light blue instead of a black sheath, subject to
special order.
®
Dekoron Instrumentation
Cable Construction
1. Plain annealed copper conductor.
OD than braid-shielded products and permits longer length.
2. Primary insulation is V-90RP which provides excellent physical
Ease of termination and freedom from insulation puncture
and electrical properties. Colour coded and numbered for easy
(such as with broken braid ends). Adjacent shields are
identification.
electrically isolated and tested in combinations.
3. Tinned copper drain wire for pair shield. Provides ease of
6. Tinned copper drain wire for overall shield provides ease of
terminating shield.
terminating shield.
4. Individual pair shields are aluminium/polyester tape. Gives
7. Ripcord simplifies field strip back without damage from
additional protection against static, noise, common mode noise
cutting tools.
and crosstalk.
8. Outer V-90RP sheath or bedding for armour.
5. Overall shield comprises aluminium/polyester tape for initial
9. Galvanised steel wire armour (optional).
protection against noise. The helically applied laminate tape
10. Outer V-90RP sheath.
shield provides 100 percent coverage while allowing a smaller
1
2
3
4
7
6
5
8
9
10
®
Dekoron Instrumentation
Cable Characteristics
Physical
Conductor
size
AWG
Conductor
stranding
Nominal
conductor
diameter
Nominal
insulation
thickness
Nominal
core
diameter
Nominal
screen
thickness
Drain wire
stranding
no/mm
mm
mm
mm
mm
no/mm
20
16
7/0.30
7/0.50
0.9
1.5
0.4
0.4
1.7
2.2
0.009
0.009
7/0.20
7/0.20
Conductor
resistance
at 20°C
each wire
Ohm/100m
3.84
1.36
Nominal
voltage
rating
Maximum
current
rating
Amperes
3
13
Mutual
capacitance
cond to cond
screened
nF/100m
14.5
20.0
Capacitance
both wires
cond to screen
screened
nF/100m
24.0
30.0
L / R ratio
at 1000Hz
a.c./d.c.
110/150
110/150
Mutual
capacitance
cond to cond
unscreened
nF/100m
8.5
11.0
mm 2
0.5
1.5
Electrical
Conductor
size
mm 2
0.5
1.5
Conductor
size
Induction
at
1000Hz
mm 2
0.5
1.5
µH/100m
110
95
Characteristic
impedance
at 1000Hz
unscreened
Ohm
450
350
Characteristic
impedance
at 1000Hz
screened
Ohm
350
260
Crosstalk
attenuation between
pairs @ 1000Hz
unscreened
dB/100m
100
–
Crosstalk
attenuation between
pairs @ 1000Hz
screened
dB/100m
125
–
Attenuation @ 1000Hz
between 600 Ohm
terminations
unscreened
dB/100m
0.09
0.07
µH/Ohm
15.7
36.5
Attenuation @ 1000Hz
between 600 Ohm
terminations
screened
dB/100m
0.11
0.09
Testing
Insulation integrity verified by spark test at 6kV a.c.
H.V. test on cable: between conductors and conductors to screen at 2kV a.c. for 1 minute.
Colour code
Pairs: Black and white. Each pair is numbered.
Triples: Black, white and red. Each triple is numbered.
Availability
This catalogue provides details of the standard range of instrumentation cables. Generally, these are stock items, however some items may be
subject to minimum production runs. Enquire at any Olex sales office to obtain the status of any particular item.
®
Dekoron Instrumentation
Unscreened & O’all Screened Pairs
Construction Plain annealed copper conductor, V-90RP PVC insulated, twisted pairs, unscreened or overall screened
with aluminium polyester tape plus tinned copper drain wire, rip cord, V-90RP PVC sheathed.
Pairs
Nominal
outside
diameter
mm
Conductor 0.5mm 2 (7/0.30mm) screened
1
5.2
2
7.8
4
8.4
6
10.0
8
11.2
10
12.5
12
13.4
16
15.1
20
16.8
24
18.1
36
22.0
50
25.6
2
Conductor 1.5mm (7/0.50mm) screened
1
6.6
2
9.9
4
10.9
6
13.0
8
14.6
10
16.3
12
17.5
16
20.0
20
22.3
24
24.1
36
29.2
50
34.2
Conductor 1.5mm 2 (7/0.30mm) unscreened
1 Pair
6.4
Minimum
bending
radius
mm
Maximum
pulling
tension
kN
Approximate
mass
Product code
kg/100m
31
47
50
60
67
75
80
91
101
109
132
153
0.07
0.14
0.28
0.42
0.56
0.70
0.84
1.12
1.40
1.68
2.52
3.50
3.5
6.3
9.4
13
17
21
24
31
38
45
66
90
IEB183AA001
IEC183AA002
IEC183AA004
IEC183AA006
IEC183AA008
IEC183AA010
IEC183AA012
IEC183AA016
IEC183AA020
IEC183AA024
IEC183AA036
IEC183AA050
40
60
65
78
88
98
105
120
134
145
175
205
0.21
0.42
0.84
1.26
1.68
2.10
2.52
3.36
4.20
5.04
7.56
10.50
6.0
11
18
26
33
41
48
63
79
93
137
188
IEB184AA001
IEC184AA002
IEC184AA004
IEC184AA006
IEC184AA008
IEC184AA010
IEC184AA012
IEC184AA016
IEC184AA020
IEC184AA024
IEC184AA036
IEC184AA050
39
0.21
5.6
IEA184AA001
®
Dekoron Instrumentation
Individually & O’all Screened Pairs
Construction Plain annealed copper conductor, V-90RP PVC insulated, twisted pairs, individually and overall screened
with aluminium polyester tape plus tinned copper drain wire, rip cord, V-90RP PVC sheathed.
Pairs
Nominal
outside
diameter
mm
Conductor 0.5mm 2 (7/0.30mm)
2
8.1
4
10.4
6
12.2
8
13.9
10
14.6
12
16.0
16
18.0
20
20.1
24
21.9
36
26.3
50
30.6
2
Conductor 1.5mm (7/0.50mm)
2
10.3
4
13.4
6
16.1
8
18.2
12
20.9
16
23.9
20
26.5
24
29.0
36
35.1
50
40.8
Minimum
bending
radius
mm
Maximum
pulling
tension
kN
49
62
73
84
88
96
108
120
131
158
184
0.14
0.28
0.42
0.56
0.70
0.84
1.12
1.40
1.68
2.52
3.50
62
81
97
109
125
143
159
174
210
245
0.42
0.84
1.26
1.68
2.52
3.36
4.20
5.04
7.56
10.50
Approximate
mass
Product code
kg/100m
7.3
12
17
22
26
31
39
48
57
83
112
IED183AA002
IED183AA004
IED183AA006
IED183AA008
IED183AA010
IED183AA012
IED183AA016
IED183AA020
IED183AA024
IED183AA036
IED183AA050
13
22
32
40
57
75
92
110
162
220
IED184AA002
IED184AA004
IED184AA006
IED184AA008
IED184AA012
IED184AA016
IED184AA020
IED184AA024
IED184AA036
IED184AA050
®
Dekoron Instrumentation
Overall Screened SWA Pairs
Construction Plain annealed copper conductor, V-90RP PVC insulated, twisted pairs, overall screened with aluminium
polyester tape plus tinned copper drain wire, rip cord, PVC bedding, steel wire armour, V-90RP PVC sheathed.
Pairs
Nominal
over
bedding
mm
Conductor 0.5mm 2 (7/0.30mm)
2
7.4
4
8.0
6
9.4
8
10.6
10
11.7
12
12.6
16
14.3
20
15.8
24
17.1
36
20.5
50
23.9
2
Conductor 1.5mm (7/0.50mm)
1
6.2
2
9.4
4
10.3
6
12.2
8
13.8
10
15.2
12
16.5
16
18.8
20
20.8
24
22.6
36
27.7
50
32.3
Nominal
over
armour
mm
Nominal
outside
diameter
mm
Minimum
bending
radius
mm
Maximum
pulling
tension
kN
Approximate
mass
Product code
9.2
9.8
11.2
12.4
13.5
14.4
16.1
18.3
19.6
23.0
26.4
11.4
12.0
13.6
14.8
16.1
17.0
18.9
21.1
22.7
26.3
29.9
137
144
164
178
193
204
227
253
272
316
359
2.3
2.4
2.8
3.1
3.4
3.6
4.2
6.4
6.9
8.2
9.5
25
28
36
42
48
54
65
86
97
127
160
IEG183AA002
IEG183AA004
IEG183AA006
IEG183AA008
IEG183AA010
IEG183AA012
IEG183AA016
IEG183AA020
IEG183AA024
IEG183AA036
IEG183AA050
8.0
11.2
12.1
14.0
15.6
17.7
19.0
21.3
23.3
25.1
30.2
35.5
10.2
13.6
14.5
16.6
18.2
20.6
22.1
24.4
26.6
28.6
34.4
39.7
123
163
174
199
219
247
265
292
319
344
413
477
2.0
2.8
3.1
3.6
4.0
6.2
6.7
7.5
8.3
9.0
11.0
16.4
22
34
42
55
65
87
99
119
140
161
223
307
IEF184AA001
IEG184AA002
IEG184AA004
IEG184AA006
IEG184AA008
IEG184AA010
IEG184AA012
IEG184AA016
IEG184AA020
IEG184AA024
IEG184AA036
IEG184AA050
kg/100m
®
Dekoron Instrumentation
Ind. & O’all Screened SWA Pairs
Construction Plain annealed copper conductor, V-90RP PVC insulated, twisted pairs individually & overall screened with
aluminium polyester tape plus tinned copper drain wire, rip cord, PVC bedding, steel wire armour, V-90RP PVC sheathed.
Pairs
Nominal
over
bedding
mm
Conductor 0.5mm 2 (7/0.30mm)
2
7.7
4
9.8
6
11.6
8
13.1
10
13.8
12
15.0
16
17.0
20
18.8
24
20.4
36
24.6
50
29.1
2
Conductor 1.5mm (7/0.50mm)
2
9.7
4
12.6
6
15.1
8
17.1
10
18.1
12
19.6
16
22.4
24
27.5
Nominal
over
armour
mm
Nominal
outside
diameter
mm
Minimum
bending
radius
mm
Maximum
pulling
tension
kN
Approximate
mass
Product code
9.5
11.6
13.4
14.9
15.6
16.8
19.5
21.3
22.9
27.1
31.6
11.7
14.0
16.0
17.5
18.2
19.6
22.6
24.4
26.2
30.6
35.8
141
168
192
210
219
235
271
293
315
368
430
2.4
2.9
3.4
3.8
4.0
4.3
6.9
7.5
8.2
9.8
11.5
26
35
45
52
58
66
91
104
118
155
202
IEH183AA002
IEH183AA004
IEH183AA006
IEH183AA008
IEH183AA010
IEH183AA012
IEH183AA016
IEH183AA020
IEH183AA024
IEH183AA036
IEH183AA050
11.5
14.4
17.6
19.6
20.6
22.1
24.9
30.0
13.9
17.1
20.4
22.7
23.7
25.4
28.4
33.9
167
205
245
272
284
305
341
407
2.9
3.6
6.2
6.9
7.4
7.9
9.0
11.0
36
51
78
92
103
116
143
194
IEH184AA002
IEH184AA004
IEH184AA006
IEH184AA008
IEH184AA010
IEH184AA012
IEH184AA016
IEH184AA024
kg/100m
®
Dekoron Instrumentation
Triples
Construction Plain annealed copper conductor, V-90RP PVC insulated, twisted triples, unscreened or overall screened
with aluminium polyester tape plus tinned copper drain wire, rip cord, V-90RP PVC sheathed.
Unscreened and Overall Screened Triples
Triples
Nominal
outside diameter
mm
Conductor 0.5mm 2 (7/0.30mm) screened
4
10.0
6
11.7
12
16.1
16
18.1
36
26.4
Conductor 1.5mm 2 (7/0.50mm) screened
1
6.9
4
13.0
6
15.6
12
21.1
16
24.1
36
35.4
Conductor 1.5mm 2 (7/0.30mm) unscreened
1 Triple
6.8
Minimum
bending radius
mm
Maximum
pulling tension
kN
Approximate
mass
kg/100m
Product code
60
70
96
109
159
0.42
0.63
1.26
1.68
3.78
13
19
35
45
96
IGC183AA004
IGC183AA006
IGC183AA012
IGC183AA016
IGC183AA036
42
78
93
126
145
212
0.32
1.26
1.89
3.78
5.04
11.30
7.8
26
38
71
93
202
IGB184AA001
IGC184AA004
IGC184AA006
IGC184AA012
IGC184AA016
IGC184AA036
41
0.32
7
IGA184AA001
66
79
102
116
169
0.42
0.63
1.26
1.68
3.78
16
22
40
52
111
IGD183AA004
IGD183AA006
IGD183AA012
IGD183AA016
IGD183AA036
85
102
135
154
225
1.26
1.89
3.78
5.04
11.30
29
42
78
103
223
IGD184AA004
IGD184AA006
IGD184AA012
IGD184AA016
IGD184AA036
Individually and Overall Screened Triples
Conductor 0.5mm 2 (7/0.30mm) screened
4
11.0
6
13.1
12
17.0
16
19.4
36
28.2
2
Conductor 1.5mm (7/0.50mm) screened
4
14.2
6
17.1
12
22.4
16
25.6
36
37.6
Overall Screened SWA Triples
Triples
Nominal diameter
over bedding
mm
Conductor 0.5mm 2 (7/0.30mm)
4
9.4
12
15.0
16
17.1
Conductor 1.5mm 2 (7/0.50mm)
1
6.6
4
12.2
12
19.8
Nominal diameter
over armour
mm
Nominal outside
diameter
mm
Minimum bending
radius
mm
Maximum pulling
tension
kN
Approximate
mass
kg/100m
Product code
11.2
16.8
19.6
13.6
19.7
22.7
164
236
272
2.8
4.3
6.9
36
70
97
IGG183AA004
IGG183AA012
IGG183AA016
8.4
14.0
22.3
10.6
16.6
25.6
127
199
307
2.0
3.6
8.0
24
55
132
IGF184AA001
IGG184AA004
IGG184AA012
14.6
21.3
23.7
175
256
284
3.1
6.5
7.4
40
88
107
IGH183AA004
IGH183AA012
IGH183AA016
17.9
26.7
214
321
3.9
8.3
60
140
IGH184AA004
IGH184AA012
Individually and Overall Screened SWA Triples
Conductor 0.5mm 2 (7/0.30mm)
4
10.4
12.2
12
15.9
18.4
16
18.1
20.6
Conductor 1.5mm 2 (7/0.50mm)
4
13.4
15.2
12
21.0
23.5