- CABLE CONSTRUCTION
- Conductor: The conductors shall be solid, annealed and bare copper with a diameter of AWG23
Insulation: Each conductor shall be insulated with solid high density polyethylene. The insulation shall be uniform and shall not have any defects. The diameter over the insulation shall be maximum 1.22mm.
Sheath: The flame retardant LSZH(Low Smoke Zero Halogen) compound colored grey or other colors shall be applied over the cable core. The sheath shall be uniform and shall not have any defects.
- ELECTRICAL PERFORMANCE
-
Characteristics Units Specification DC Resistance Ω/100m ≤ 9.38 DC Resistance Unbalance % ≤ 5.00 Capacitance Unbalance
(Pair to Ground)pF/km
(800~1000Hz)≤ 330 Insulation Resistance MΩ-100m ≥ 500 Dielectric Strength DC kV/sec 2.5 / 2 Impedance (Characteristic mean)
Ω 100 ± 15% (1 ≤ f ≤ 250MHz) Return Loss dB/100m ≥ 20 + 5 * log(freq) , 1 ≤ f < 10MHz
≥ 25 , 10 ≤ f < 20MHz
≥ 25 – 7 * log(freq/20) , 20 ≤ f ≤ 250MHzAttenuation
(Insertion Loss)dB/100m ≤ 1.808*√(freq) + 0.017*(freq) + 0.20/√(freq)
, 1 ~ 250 MHzNEXT Loss dB/100m ≥ 44.3 – 15*log(freq/100) , 1 ~ 250MHz Power sum NEXT Loss dB/100m ≥ 42.3 – 15*log(freq/100) , 1 ~ 250MHz ELFEXT Loss dB/100m ≥ 27.8 – 20*log(freq/100) , 1 ~ 250MHz Power sum ELFEXT Loss dB/100m ≥ 24.8 – 20*log(freq/100) , 1 ~ 250MHz Propagation Delay dB/100m ≤ 534 + 36 / √(Freq) , 1 ~ 250MHz Propagation Delay Skew dB/100m ≤ 45
- FLAME REQUIREMENTS
- The LSZH cable comply with CPR reaction to fire: B2ca Class.