Active Member
|
[China]
Address: No.556 Shangpan Road, Lin'an District, Hangzhou City, Zhejiang Province, China
Contact name:Thomas
Hangzhou Aite Cable co.,Ltd. |
|
|
| Construction | Material | Diameter(mm) |
| Inner Conductor | CCS 16%-40% | 1.02 |
| Dielectric | Foam PE | 4.57 |
| First Shield | Bonded AL Foil | 18 |
| Second Shield | AL Braid | 48% |
| Outer Jacket | PVC | 6.85 |
Electrical Characteristics
| Impedance (Ω) | 75±3 |
| Capacitance (pF/m) | 52±2 |
| Velocity of Propagation(﹪) | 85.0 |
Return Loss 5-1000MHz(dB) | ≥22 |
Return Loss 1000-3000MHz(dB) | ≥20 |
Attenuation(@20℃)
| Frequency (MHZ) | Min Attenuation (dB/100ft) | Max Attenuation (dB/100m) |
| 5 | 0.6 | 1.9 |
| 55 | 1.6 | 5.2 |
| 187 | 2.8 | 9.3 |
| 211 | 3.0 | 10.0 |
| 400 | 4.1 | 13.5 |
| 500 | 4.6 | 15.0 |
| 750 | 5.6 | 18.5 |
| 860 | 6.1 | 20.0 |
| 1000 | 6.6 | 21.5 |
| 1500 | 8.2 | 26.8 |
| 1800 | 8.8 | 28.9 |
| 2200 | 9.8 | 32.2 |
| 3000 | 11.5 | 37.6 |
How to choose the right
coaxial Cable－Material
1 Inner Conductor
SC(Silver Copper)
TC(Tined Copper)
BC(Bare Copper) or called CU have a good electrical performance and flexibility
CCA(Copper clad Aluminum) very Light but could be easier oxidized(rusted)
CCS(Copper clad steel) Cheap(price only 1/5 of BC) and not bad electrical performance
the cost is Silver copper>tinned copper>bare copper>Copper clad aluminum>Copper clad steel
2 Insulation
Solid PE/Foam PE/ Gas Injection PE
Currently there is two type of PE in the market for the Drop Cables,
Local PE(Chinese Manufacture)
Imported PE( DOW chemical..)
The main difference of the two type, is that Local PE is not pass the Oxidative induction time(OIT) Test, and the Crush resistant Test, which may required by the CATV company, but general the electrical performance is the same.
The price difference of the material is about 23%...
3 Foil Screen
Normally it is in three type
AL or copper foil not bonded to the insulation ---AP
AL or copper foil bonded to the insulation- Bonded Al/Pet(blue)- BAP(the most widely used)
AL/PET/AL foil bonded to the insulation- Bonded Al/Pet/AL- BAPA
I have meet some customer that want a copper color Al foil(some clients called golden foil), which is the same color of the copper foil, but it is Al foil. WOW--a lot lot cheaper,, scratch on the foil, you will see or burn it.
One more thing is the overlap of the foil, >2mm or >20%, you need to know from your supplier
4 Braiding
For the braiding wire, there is:
BC Copper wire,
TC Tinned copper wire,
SC Silvered copper wire,
CCA Copper clad Aluminum wire, looks like BC but could be easier oxidized(rusted)
AL Magnesium Aluminum Wire, (the most widely used)
the cost is Silver copper wire>tinned copper wire>copper wire>Copper clad aluminum wire> Aluminum wire
With a knife or lighter you can tell the difference
Another difference of the cost, is the braiding coverage, form 30%-95%, normally in the market is 48%, 60%, 77%, for the digital cable, is over 90%.
5 Jacket
The requirement for PVC included
1 Tensile strength before aging
2 Elongation before aging
3 Tensile strength after aging
4 Elongation after aging
5 Shrinkage
6 Heat shock
7 Cold bend
8 Cold Impact
9 UV Resistant
10 Fire resistant( include different grade, for north american market, there is CMX,CM,CMR/Riser,CMP/ Plenum, for European, it is IEC60332-1, IEC 60332-3, IEC60332-3C)
For the Tropical area, you might just need the 1,2,9, and that would be enough,
For the cold area, you might need the 7, 8, but still you need to know your lowest temperature, other wire, the jacket will be break, and you have to reinstall, or get the customer complaint.
For commercial building , first resistant CMR, CMP is recommend.
If you have technical support from an engineer, please let us know
the type of cables you need, the inner conductor, the braiding
coverage, the jakcet material and color, the packing length and
design, and the application. We will help you choose the most
suitable cable.
If you are not sure about certain specifications of the electric
cables, please let us know your inquiry and we are very happy to
give you professional technical advice and support services. Our
company offer specific cables and wires consulting, design, OEM and
manufacturing based on the customer's requirements and application
scenarios to help customers create more business opportunities.
Mobile/ Whatsapp: +86 13616872763 | QQ/ Wechat: 398023701 | Skype:
thomas-aite | Email: thomas@at-cable.com
