Scada/Pilot Cables NR/PS/ELP/27220
Application
The telecom cables are suitable for modem based supervisory system operating in the VF range from 300 to 3000Hz.
Reference Standards
- NR/PS/ELP/27220 (formerly RT/E/PS/0034)
Cable Construction
| Conductors |
Class 1 solid plain copper conductor 0.9 mm nominal diameter to BS 6360, complies with BS 3573. |
| Insulation |
Solid polyethylene type 03 to BS 6234. |
| Cabling Element |
Two insulated conductors are twisted together to form a pair. |
| Filling |
Petroleum jelly filled. |
| Core Wrapping |
PETP (Polyethylene Terephthalate) tape. |
| Moisture Barrier |
One laminated sheath made of aluminium tape coated with PE-Copolymer on at least one side is applied with longitudinally overlap. |
| Inner Sheath |
Low density polyethylene type 03C to BS 6234. |
| Screen |
Aluminium wire screen. |
| Core Wrapping |
Water blocking tape. |
| Sheath |
Low density polyethylene type 03C to BS 6234. |
Electrical Characteristics at 20℃
| Nominal Conductor Diameter |
mm |
0.9 |
| Maximum Conductor Resistance |
Ω/km |
30.0 |
| Maximum Average Mutual Capacitance @1000Hz (AC) |
nF/km |
71 |
| Maximum Capacitance Unbalance @1000Hz pair to pair |
pF/500m |
275 |
Mechanical and Thermal Properties
- Minimum Bending Radius: 10×OD
- Temperature Range: -25℃ to +85℃ (during operation); -10℃ to +70℃ (during installation)
Dimensions and Weight
| Cable Code |
Number of Pairs |
Nominal Sheath Thickness |
Maximum Overall Diameter |
Nominal Weight |
| |
|
mm |
mm |
kg/km |
| 0.9mm Conductor, 1.5mm Insulated Wire |
| RS27220-2Y(F)(L)2YB2Y-10P0.9 |
10 |
1.8 |
25.8 |
755 |
| RS27220-2Y(F)(L)2YB2Y-20P0.9 |
20 |
1.8 |
27.8 |
946 |
| RS27220-2Y(F)(L)2YB2Y-30P0.9 |
30 |
2.0 |
31.8 |
1225 |
| RS27220-2Y(F)(L)2YB2Y-50P0.9 |
50 |
2.0 |
35.8 |
1643 |
| RS27220-2Y(F)(L)2YB2Y-75P0.9 |
75 |
2.2 |
41.6 |
2240 |
| RS27220-2Y(F)(L)2YB2Y-100P0.9 |
100 |
2.2 |
46.6 |
2780 |
