INSTRUMENTATION CABLES
(Reference Standard BSEN 50288-7)
Instrumentation cable for low voltage 300V, 500V application.
These cables are used in various industries for transmission of analog/digital signals for measurement and process control purpose.
Operating temperature: 70°C & 90°C (depends upon the selection of insulation compound).
Product Sizes: 0.50 Sq.mm to 4 Sq.mm up to 48 Pairs/Triads/ Quad element/cores.
Conductor: Annealed bare Copper/tinned Copper, solid or stranded Copper conductor (IEC -60228 Class 1 & 2).
Insulation Compound: PVC/TI 51/TI 53/PE/XLPE.
Screening: Individual & Overall screening with Al-Mylar, Polyester tape and drain wire.
Armouring: Galvanized round wire, and Flat strip conforming to IS/BS standard.
Sheathing: PVC/FR/FRLS/FROR/LSF Inner & Outer sheath.
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Element Screened
-
Overall Screened
-
Element + Overall Screened
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Characteristics of Instrumentation Cables
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|||||||
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0.5mm2
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0.75mm2
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1.0mm2
|
1.5mm2
|
2.5mm2
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Unit
|
|
Mutual Capacitance Core to Core (PVC insulation) |
<
|
250
|
250
|
250
|
250
|
250
|
pF / m
|
|
Mutual Capacitance Core to Core (Polyethylene XLEP insulation) |
<
|
115
|
115
|
115
|
115
|
115
|
pF / m
|
| L/R Ratio |
|
25
|
25
|
25
|
40
|
60
|
µH / Ohm
|
|
Conductor Resistance (D.C.Resistance at 20°C) |
<
|
39.7
|
26.5
|
18.4
|
12.3
|
7.41
|
Ohms - Km
|
| Insulation Resistance PVC |
>
|
100
|
100
|
100
|
100
|
100
|
M Ohms - Km
|
| Insulation Resistance Polyethlene / XLPE |
>
|
5000
|
5000
|
5000
|
5000
|
5000
|
M Ohms - Km
|
|
Core - Core / Screen / Armour Insulation Resistance at 500 V (PVC) |
>
|
25
|
25
|
25
|
25
|
25
|
M Ohms - Km
|
| Screen to Screen Insulation Resistance at 500 V |
>
|
1
|
1
|
1
|
1
|
1
|
M Ohms - Km
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