RD-Y(St)YY
- Data transmission cable
- double outer sheath
- for outdoor use
- direct burial
Technical Data RD-Y(St)YY
| PVC data cable in alignment with DIN VDE 0815 | |
| Temperature range | flexible -5°C to +50°C fixed -30°C to +70°C |
| Peak operating voltage | 600 V (not for high power current installation purposes) |
| Test voltage core/core | 2000 V |
| Test voltage core/screen | 2000 V |
| Conductor resistance at 20°C | max. 39.2 Ohm/km |
| Mutual capacitance core/core | at 800 Hz 2 - 4 pairs: approx. 120 pF/m 8 - 96 pairs: approx. 100 pF/m |
| Capacitive coupling k1 | at 800 Hz, max. 200 pF/100m; 20% of the values, but at least one value may amount up to 400 pF/100m |
| Characteristic impedance | at 1 kHz, 370 Ohm, at 10 kHz, 130 Ohm, (approx. value) |
| Cable attenuation | at 1 kHz, 1.2 dB/km at 10 kHz, 3.0 dB/km (approx. value) |
| Crosstalk attenuation | at 10 kHz, 60.00 dB (approx. value) |
| Minimum bending radius | flexible 10x Outer-Ø fixed 10x Outer-Ø |
Details RD-Y(St)YY
Cable Structure
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- Copper wire bare, stranded
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- Wire structure:
- 0.5 mm²: 7 x 0.3 mm
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- Core insulation: semirigid PVC
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- Core identification: colour coded, per bundle:
- Pair no. 1: a-core = blue; b-core = red
- Pair no. 2: a-core = grey; b-core = yellow
- Pair no. 3: a-core = green; b-core = brown
- Pair no. 4: a-core = white; b-core = black
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- Cores stranded in pairs with optimal lay lengths, 4 pairs stranded into bundles with optimal lay lengths, bundles stranded in layers with optimal lay lengths
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- Bundle identification: synthetic helix with printed digits
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- Drain wire, tinned copper, stranded (0.5 mm² = 7 x 0.3 mm)
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- Screen: plastic-coated aluminium foil (St), approx. overlap 25%
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- Outer sheath: PVC, double (YY)
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- Sheath colour: grey (RAL 7032)
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- Length marking: in metres
Properties
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- direct burial
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- the materials used during manufacturing are cadmium-free, contain no silicone and are free from substances harmful to the wetting properties of lacquers
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- pair stranding with short and varied lay lengths within a bundle, leads to good crosstalk attenuation values
Tests
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- flame-retardant acc. to DIN VDE 0482-332-1-2 / DIN EN 60332-1-2 / IEC 60332-1-2
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- certifications and approvals:
- EAC
Notes
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- the conductor is metrically (mm²) constructed, AWG numbers are approximated, and are for reference only
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- 2-pair cables: cores stranded to a star quad
Application
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- RD data transmission cables are used in measurement and control technology, as well as in control stations of industrial plants. The cables are used for the transmission of analogue and digital signals up to a frequency of approximately 10 kHz. They are suitable for fixed installations inside buildings, outdoors and underground.
Items RD-Y(St)YY
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Item description
Part no.
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AWG (approx.) | Outer Ø mm (approx.) | Cu factor per km | Weight kg/km (approx.) |
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