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Product Description
4SProducts BSWire®-n is designed for direct burial applications and is available in 2, 3, 4,
5 and 6 pair sizes. The primary application of a Buried Service Wire is service entrances.
It is filled with PIB base jelly compound, which is chemically and electrically
compatible with all other materials in the wire. The compound completely
coats each insulated conductor and fills the air space between conductors.
Physical
Description
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Conductors: Solid annealed
copper in 22 and 24 AWG. |
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Insulation: Each conductor is
insulated with solid high-density
polyethylene in distinctive colors. |
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Core Assembly: Individual
conductor dimensions are tightly controlled
to limit resistance unbalance of twisted pairs. Pair twist lays
are varied to minimize crosstalk and meet capacitance unbalance
limits. The wire core is completely filled with PIB base jelly such as BP Naptel 867,
filling the air spaces between insulated conductors. |
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Jacket: A black, linear
low-density polyethylene jacket is extruded
over the core and ripcord to protect the core from minor mechanical
damage, degradation by sunlight and ingress of moisture and water. |
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Electrical
Specifications |
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Average
Mutual Capacitance at 1000 Hz |
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max. Individual Wire
Avg. |
nF/mile |
nF/km |
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94 |
58 |
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83 ± 7 |
52 ± 4 |
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Conductor
Size |
Minimum
Insulation Resistance |
Conductor DC
Resistance |
Attenuation
@722 kHz |
Resistance
Unbalance |
Dielectric
Strength
DC Potential
Volts |
|
Max Individual |
|
Max Individual |
|
68 °F (20 °C) |
68 °F (20 °C) |
Maximum |
Minimum |
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AWG |
mm |
gigohm
/ mile |
gigohm
/ km |
ohms/mile |
ohms/km |
dB/kft |
dB/km |
Individual
Pair % |
Cdr.
to Cdr. |
|
22 |
0.64 |
1.0 |
1.6 |
91.0 |
56.4 |
4.6 |
15.1 |
5.0 |
5,000 |
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24 |
0.50 |
1.0 |
1.6 |
144.0 |
89.5 |
5.8 |
19.0 |
5.0 |
4,000 |
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Far End
Crosstalk at 150 kHz |
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Min.
FEXT (dB/kft) |
63 |
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Min.
FEXT (dB/km) |
58 |
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Near
End Crosstalk at 772
kHz |
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Min.
NEXT mean (dB) |
48 |
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Capacitance Unbalance @ 1000Hz, Pair to Pair |
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Max. Pair to Pair
(pF/kft) |
80 |
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Max. Pair to Pair
(pF/km) |
145 |
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Max. Pair to Ground
(pF/kft) |
800 |
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Max. Pair to ground
(pF/km) |
2,625 |
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