Instrumentation cable parameters (As per BS 5308)
|
Conductor Size (Sqmm) |
0.50 |
0.75 |
1.0 |
1.50 |
|
|
Conductor Resistance @ 20 °C |
36.8 |
25.0 |
18.4 |
12.3 |
|
|
Max. Mutual Capacitance (PE Insulation) |
Individual Screen (nF/Km) |
75 |
75 |
75 |
85 |
|
Overall Screen(nF/Km) |
115 |
115 |
115 |
120 |
|
|
Max. Mutual Capacitance (PVC Insulation) |
Between adjacent cores (nF/Km) |
250 |
250 |
250 |
250 |
|
Core to Screen (nF/Km) |
400 |
400 |
400 |
400 |
|
|
Max. Mutual Capacitance (Teflon Insulation) |
Individual Screen (nF/Km) |
75 |
75 |
75 |
85 |
|
Overall Screen(nF/Km) |
115 |
115 |
115 |
120 |
|
|
Maximum Inductance (mH/Km) |
1 |
1 |
1 |
1 |
|
|
Max L/R Ratio (MicroH/Ohm) |
25 |
25 |
25 |
40 |
|
|
Max Electrostatic noise ratio (dB) |
76 |
76 |
76 |
76 |
|
|
Max Cross talk (dB) |
60 |
60 |
60 |
60 |
|
|
Max Attenuation (dB/Km) |
1.2 |
1.2 |
1.2 |
1.2 |
|