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Chapter 1.10

Direct Burial Jelly Filled Served Steel Wire Armored Outdoor Copper Telecom Cable

Multipair copper cables for direct burial installations for telecom applications in rodent infested areas.
The cable core is made of twisted pairs which are cabled into groups, jelly filled and tape wrapped with a polyester binder.
Flooding compound is inserted between the polyester tape and the aluminum moisture barrier, which is placed over the cable core and bonded to an inner PE jacket. 
A served steel wire armor is wrapped over the inner jacket and flooded with a water resistant compound. The overall jacket is made of black PE.
Conductor range, pair count range and applications:
0.5 mm conductors: 2-100 pairs, used mainly in distribution networks.
0.63 mm conductors: 2-100 pairs; 0.9 mm conductors:2-50 pairs, used mainly for long-haul installations.

Cable Construction

Conductors Solid annealed bare copper conductors, conforming to ASTM B3
Insulation Foam-skin Polyolefin conforming to ASTM D1248
Cable assembly Twisted pairs, cabled into sub-units and super-units, cabled in a circular form.
Filling compound Water resistant filling compound, applied to the gaps between the pairs.
Tape wrap Non hygroscopic plastic tape, wrapped with 30% overlap.
Flooding compound Water resistant flooding compound, applied between the core wrap and the aluminum foil.
Moisture barrier 200 micron aluminum/copolymer foil laid longitudinally, bonded to the outer jacket.
Inner Jacket Black LLDPE compound conforming to ASTM D1248.
Steel armor Round galvanized steel wire applied over the inner jacket and flooded with a water-resistant compound.
Outer Jacket Black LLDPE compound conforming to ASTM D1248.
Surface marking Per request.

Electrical Parameters

Basic Conductors: Solid bare annealed copper

0.5 mm 0.63 mm 0.9 mm
DC Resistance @20C, Ohm/Km, Average Maximum 92 58 28
DC Resistance @20C, Ohm/Km, Absolute Maximum 96 60 30

Mutual Capacitance @800 Hz, nF/Km, Average Maximum

56 56 59

Mutual Capacitance @800 Hz, nF/Km, Absolute Maximum

64 64 65
Capacitance Unbalance @800 Hz, pF/500m, Between Pairs  
Average Maximum 275
Absolute Maximum 800
Insulation Resistance @500Vdc, GigaOhm·Km Minimum 1.5
Dielectric Strength, AC Volts per 1 minute, Pair to Pair 2000 2400 3000
Dielectric Strength, AC Volts per 1 minute, Pair to Ground 2000 2400 3000
Conductor OD
mm
WW P/N Number of Pairs Overall Diameter
mm
Total Weight
Kg/Km

 



0.5

WTLJ002x05 2 9.9 180
WTLJ005x05 5 11.7 244
WTLJ010x05 10 12.5 429
WTLJ020x05 20 15.2 429
WTLJ030x05 30 17.1 596
WTLJ040x05 40 18.2 683
WTLJ050x05 50 20.0 876
WTLJ100x05 100 25.0 1333
 



0.63

WTLJ002x06 2 10.5 205
WTLJ005x06 5 12.7 296
WTLJ010x06 10 13.8 357
WTLJ020x06 20 17.9 642
WTLJ030x06 30 20.3 883
WTLJ040x06 40 21.6 1008
WTLJ050x06 50 23.0 1152
WTLJ100x06 100 29.2 1801
 


0.9

WTLJ002x09 2 11.5 249
WTLJ005x09 5 14.7 395
WTLJ010x09 10 16.9 596
WTLJ020x09 20 22.1 1049
WTLJ030x09 30 24.3 1280
WTLJ040x09 40 26.0 1492
WTLJ050x09 50 28.0 1735
 

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