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Product Description
4SProducts BSWire®
is filled, double-jacketed wire designed for direct burial applications and available in 2, 3, and 6 pair sizes. The primary application of a Buried Service Wire is service entrances
and distribution circuits.
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 19, 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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Inner Jacket: A black, linear
low-density polyethylene inner jacket provides additional mechanical and
moisture protection. |
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Shield: A smooth,
copolymer-coated, 8 mil aluminum tape is applied longitudinally over the
inner jacket and is bonded to the outer jacket. The space under the
tape is flooded to eliminate all air space. |
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Outer Jacket: A
black,
linear low-density
polyethylene outer jacket provides a tough, flexible, protective covering
that withstands exposure to sunlight, atmospheric temperatures, ground
chemicals and stresses expected in standard installation. |
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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 |
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Max Individual |
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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. |
Cdr to Shield Wire |
|
19 |
0.90 |
1.0 |
1.6 |
45.0 |
28.0 |
3.2 |
10.0 |
5.0 |
7,000 |
20,000 |
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22 |
0.64 |
1.0 |
1.6 |
91.0 |
56.4 |
4.6 |
15.1 |
5.0 |
5,000 |
20,000 |
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24 |
0.50 |
1.0 |
1.6 |
144.0 |
89.5 |
5.8 |
19.0 |
5.0 |
4,000 |
20,000 |
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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) |
44 |
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Capacitance Unbalance @ 1000Hz |
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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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