Intrinsically Safe Anti-explosion Compensation Cable
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This series of cable is composed by pairs of twisting circuits and shielded layer. It is applicable for intrinsically safe temperature detection system in environment with high anti-explosion requirement. It can be used to extend the cold end of anti-explosion thermocouple and connect to anti-explosion thermodetector, to construct an intrinsically safe temperature detection and control system.
This series of cable is produced according to IEC584-3 and IEC332 standard.
Working Condition:
Maximal Working Voltage: AC 250V.
Minimal Bending Radius: 6×External Φ (10×External Φ or shielded cable)
Intrinsically Safe Cable's mark, type, material and temperature grade
| Mark |
Cable Type |
Level |
Insulation By |
Sheathed By |
Temperature Grade |
Min Environment Temperature |
Precision Mark |
| Precise |
Normal |
| IA |
SC/RC
KCA
KCB
KX
EX
JX
TX
NC
NX |
General(G) |
ZR-70ºC
or
ZR-105ºC
PVC |
ZR-70ºC
or
ZR-105ºC
PVC |
70ºC
or
105ºC |
-20ºC |
S |
N/A |
| Heat Resistant (H) |
FEP or PTFE fiberglas |
ZR-105ºC
PVC |
200ºC |
-40ºC |
Comments: Shielding Material: P1 - TR copper fiber or tinning copper fiber; P2 for copper belt; P3 for aluminum foil.
Feature Symbol of Compensation Cable
| Feature Name |
Multi-ply Soft Wire |
Shield |
Twisting |
Whole Shielded |
Pair Shielded |
| Feature Symbol |
R |
P1, P2, P3 |
J |
P |
PJ |
| Feature Name |
Twisting Whole Shielded |
Pair Shielded & Whole Shielded |
Copper Belt Armoured |
Fire Resistant |
| Feature Symbol |
JP |
PJP |
22 |
ZR |
Sample: For intrinsically safe EX type compensation cable with 7 pairs of conductor (14 wires), which has cross sectional area of 1.0mm2, the symbol should be
1. General normal precision pair shielded multi-ply soft wire - IA-EXGPJR-7×2×1.0mm2
2. General precise twisting whole shielded multi-ply soft wire - IA-EXGSJPR-7×2×1.0mm2
3. General normal precision pair shielded & whole shielded - IA-EXGPJPR-7×2×1.0mm2
4. Heat resistant precise pair shielded & whole shielded multi-ply soft wire - IA-EXHF4SVPJPR-7×2×1.0mm2
Conductor's Cross-sectional Area and Structure
| Cross-sectional Area mm2 |
Structure |
| Single-Ply |
Multi-Ply |
0.5
1.0
1.5
2.5 |
1/0.8
1/1.13
1/1.37
1/1.76 |
7/0.3
7/0.43
7/0.52
19/0.41 |
Intrinsically Safe Properties
| Property |
Unit |
Value |
| Working Capacitance |
Pf/m |
≤110 |
| Inductance/Resistance Ratio |
Mh/Ω |
≤25 |
| External Magnetic Interference Resistance |
Mv |
≤1 |
| Electrostatic Interference Resistance |
V |
≤1 |
| RF Interference Resistance |
dB |
≤50 |
External diameters for reference
| Pair of Wire |
External Diameter for Pair Shielded & Whole Shielded Cable (mm) |
| Cross Sectional Area of IAG,IAGS type (mm2) |
Cross Sectional Area of IAHV105, IAHSV105 type (mm2) |
| 0.5 |
1.0 |
1.5 |
2.5 |
0.5 |
1.0 |
1.5 |
2.5 |
| 1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
1-Ply |
2-Ply |
| 1 |
7.5 |
7.7 |
8.8 |
9.1 |
9.7 |
10.1 |
10.9 |
11.4 |
6.9 |
7.1 |
7.5 |
7.8 |
8.0 |
8.4 |
8.8 |
9.4 |
| 2 |
14.6 |
14.8 |
19.2 |
19.8 |
21.0 |
21.8 |
24.0 |
24.0 |
14.8 |
15.2 |
16.8 |
17.4 |
17.8 |
18.4 |
19.2 |
20.2 |
| 3 |
16.8 |
17.5 |
20.2 |
20.9 |
22.2 |
23.0 |
23.9 |
25.2 |
15.5 |
16.0 |
17.7 |
18.3 |
18.7 |
19.4 |
20.2 |
21.3 |
| 4 |
18.4 |
19.7 |
22.2 |
22.9 |
24.4 |
24.9 |
27.0 |
28.4 |
17.0 |
18.1 |
19.3 |
20.0 |
20.0 |
21.2 |
22.2 |
21.3 |
| 5 |
20.8 |
21.6 |
24.3 |
25.7 |
26.9 |
28.4 |
29.0 |
31.6 |
19.1 |
19.7 |
21.0 |
22.5 |
23.0 |
23.8 |
24.9 |
26.2 |
| 7 |
22.6 |
23.5 |
27.1 |
28.0 |
29.8 |
31.0 |
32.8 |
35.0 |
20.8 |
21.4 |
23.5 |
24.4 |
25.5 |
25.9 |
27.1 |
29.4 |
| 8 |
24.4 |
25.4 |
29.3 |
30.0 |
32.2 |
33.5 |
35.9 |
37.9 |
22.4 |
23.0 |
25.3 |
26.3 |
26.9 |
27.4 |
29.7 |
31.3 |
| 9 |
26.8 |
27.9 |
32.2 |
33.3 |
35.9 |
37.4 |
39.6 |
41.8 |
24.5 |
25.3 |
27.7 |
28.7 |
30.0 |
31.1 |
32.6 |
34.4 |
| 10 |
29.3 |
30.5 |
34.5 |
36.1 |
38.5 |
40.1 |
42.5 |
44.9 |
26.9 |
27.7 |
29.7 |
31.3 |
32.1 |
33.3 |
34.9 |
36.9 |
| 12 |
30.4 |
31.7 |
35.9 |
37.2 |
39.7 |
41.3 |
43.8 |
46.3 |
27.6 |
28.5 |
32.0 |
32.2 |
33.0 |
33.0 |
35.9 |
38.0 |
Comments: For twisting whole shielded series, pair shielded series and steel belt armoured seris, detail SPECs are available on demand. |
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