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| UL 2990 computer cable |
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 Product Description ： |
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Tinned stranded copper conductor.- PE or PP insulation.
- PVC jacket.
- Aluminum mylar shield.
- Tined copper braid shielded.
- Singles or twisted pairs together
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| Applications : |
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Link computer with tape, driver.- CD-ROM, scanner, net-work.
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| Electrical Characteristics ： |
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Impedance: Balance - 130± 10W . Unbalance - 100± 10W- Resistance: 28AWG - 232W /km. 30AWG - 374W /km.
- Attenuation: 0.095 db/m at 5MHz.
- Delay Time Maximum: 5.2ns/m at 5 MHz.
Insulation Resistance: 500MW× km at 20° C.
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| Construction : |
UL Style
2990
20276 |
Conductor |
No.
Of
Core |
UL
Style |
Insulation Thickness |
Nominal Core OD |
No. of Shield and Material |
Jacket
Thickness |
Overall Diameter |
Standard Put-Up |
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AWG |
No./mm |
mm |
mm |
mm |
mm |
ft/coil |
M/coil |
18P |
28 |
7/0.127 |
18P |
1640 |
0.12 |
0.62 |
Al-mylar and tinned copper braid shield coverage |
1.0 |
7.6 |
500 |
152 |
25P |
28 |
7/0.127 |
25P |
1640 |
0.12 |
0.62 |
1.0 |
9.2 |
500 |
152 |
1P+18P |
28 |
7/0.127 |
1P |
1571 |
0.16 |
0.70 |
0.9 |
8.5 |
500 |
152 |
30 |
7/0.100 |
18P |
1640 |
0.23 |
0.75 |
1P+24P |
28 |
7/0.127 |
1P |
1571 |
0.16 |
0.70 |
0.9 |
9.4 |
500 |
152 |
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