- CABLE CONSTRUCTION
- Conductor: The conductors shall be solid , annealed and bare copper with a diameter of AWG23
and minimum acceptable diameter shall be 0.546mm.
Insulation: Each conductor shall be insulated with solid high density polyethylene. and FEP for CMP cable. The insulation shall be uniform and shall not have any defects. The diameter over the insulation shall be maximum 1.22mm.
Screen: The aluminum tape coated on one side with plastic film shall be applied over the core wrapping
for screening. A tinned copper wire with the diameter 0.4mm shall be applied with cable core in jacket.
Sheath: The flame retardant PVC or LSZH(Low Smoke Zero Halogen) compound colored grey or other
colors shall be applied over the screening.
- ELECTRICAL PERFORMANCE
-
Characteristics Units Specification DC Resistance Ω/100m ≤ 9.38 DC Resistance Unbalance % ≤ 4.00 Capacitance Unbalance
(Pair to Ground)pF/km ≤ 330 Insulation Resistance MΩ-100m ≥ 500 Dielectric Strength DC kV/sec 2.5 / 2 Impedance (Characteristic mean)
Ω 100 ± 15% (1 ≤ f ≤ 500MHz) Return Loss dB/100m ≥ 20 + 5 * log(freq) , 1 ≤ f ＜ 10MHz
≥ 25 , 10 ≤ f ＜ 20MHz
≥ 25 – 7 * log(freq/20) , 20 ≤ f ≤ 500MHzAttenuation
(Insertion Loss)dB/100m ≤ 1.82*√(freq) + 0.0091*(freq) + 0.25/√(freq)
, 1 ~ 500 MHzNEXT Loss dB/100m ≥ 44.3 – 15*log(freq/100) , 1 ~ 500MHz Power sum NEXT Loss dB/100m ≥ 42.3 – 15*log(freq/100) , 1 ~ 500MHz ELFEXT Loss dB/100m ≥ 27.8 – 20*log(freq/100) , 1 ~ 500MHz Power sum ELFEXT Loss dB/100m ≥ 24.8 – 20*log(freq/100) , 1 ~ 500MHz Propagation Delay dB/100m ≤ 534 + 36 / √ (Freq) , 1 ~ 500MHz Propagation Delay Skew dB/100m ≤ 45 , 1 ~ 500MHz