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
- Electrical Characteristics at 20℃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.
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 |