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.
Standards
● NR/PS/ELP/27220 (formerly RT/E/PS/0034)
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.
IFilling
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) |
