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.
Standard
- NR/PS/ELP/27220 (formerly RT/E/PS/0034)
Cable Construction
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- 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 fi lled.
- 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 mm |
Maximum Overall Diameter mm |
Nominal Weight 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 |
