The Belden 3079ALS is a low smoke zero halogen steel wire armoured instrumentation and computer cable for data applications such as Profibus.
Cable Construction
| Conductor: | AWG22 solid bare Copper |
| Cable Insulation Material: | Foam skinned polyethylene |
| Nominal Insulation Thickness: | 0.05mm |
| Insulation Colour: | Red and green |
| Cable Filler Material: | FR-Polypropylene |
| Cable Filler Diameter: | 2.54mm |
| Cable Filler Colour: | White |
| Foil material: | Aluminium / polyester Z-Fold (r) |
| Foil thickness: | 25 / 50 μm |
| Braiding Material: | AWG36 tinned Cu |
| Braiding Coverage: | 65% |
| Sheath Material: | FRNC |
| Sheath Colour: | Chrome (like RAL 7037) |
| Sheath Thickness: | 1.10 ± 0.10 mm |
| Sheath Diameter: | 8.00 ± 0.20 mm |
| Armoured Material: | Single Stee lWire 0.90mm |
| Armoured Optical Coverage: | > 95% |
| Sheath Material: | FRNC |
| Sheath Colour: | Black |
| Sheath Thickness : | 1.30 ± 0.10 mm |
| Sheath Diameter: | 12.40 ± 0.10 mm |
Cable Marking : Colour code 2159: black sheath with text ‘BELDEN V 3079ALS 1PR 22AWG SHIELDED LSNH SWA LSNH IEC 332-3C’
Mechanical Properties
| Flame Resistance: | IEC 60332-3C |
| Oil Resistance: | ASTMD741 |
| Radiation Resistance: | IEC544 (CERN) |
| Application specification: | BS 7655 section 6.1 table 1, LTS 3 |
| Halogen content according to IEC754-1 | Zero |
| Corrosivity of fire gasses according to IEC754-2 Conductivity | ≤ 100 μS/cm |
| Corrosivity of fire gasses according to IEC754-2 pH value | ≥ 3.5 |
| Installation Temperature: | -15 to +80 °C |
| Operating Temperature (moving installation): | -15 to +80 °C |
| Operating Temperature (fixed installation): | -45 to +80 °C |
| Temperature Range Storage: | -45 to +80 °C |
| Minimum Bending Radius: | 15 x cable diameter |
Electrical Properties
| Nominal resistance conductor: | 52 Ω/km |
| Nominal capacitance conductor to conductor @ 1kHz: | 27.9 pF/m |
| Capacitance unbalance @ 1kHz: | < 1000 pF/km |
| Impedance (3 – 20 MHz): | 150 ± 15 Ω |
| Nominal velocity of propagation: | 78 % |
| Maximum attenuation @ 0.2 MHz: | 0.9 dB/100m |
| Maximum attenuation @ 4 MHz: | 2.2 dB/100m |
| Maximum attenuation @ 16 MHz: | 4.5 dB/100m |
| Test voltage conductor-conductor | 2500 VDC, 3 seconds |
| Test voltage conductor-screen | 2500 VDC, 3 seconds |
| Voltage rating | 300 V RMS |
Ordering Information
Choice of 500m reel or 1000m reel, ±20% variance
