Telephone Cables
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Ordering Information

Foam Skin Insulated & LAP Sheathed Air Core/Jelly Filled Cables to DIN VDE 0816

Application

The cables are designed for use as connection between central offices. The cables are suitable for installation in ducts, direct burial in the ground and also for aerial installation with integral suspension strand. Jelly filled option is for subscriber’s cables installed underground or along the edge of pavement. An armoured option is offered for direct burial installations. A figure-8 self support option is offered for aerial installation.

Standards:

VDE 0816

Construction

Telephone Cables

Telephone Cables


Conductors: Solid annealed bare copper 0.6 and 0.8mm as per class 1 of VDE 0295/IEC 60228

Insulation: Foam Skin which is a composite polyethylene insulation made of an inner cellular layer and an outer solid skin 2YI1 type as per VDE 0207-2

Twisted Pairs: Insulated conductors are twisted into pairs with varying lay length to minimize crosstalk

Cabling Element: Star Quads

Cable Core Assembly: 4 Cores are twisted into star quad. 5 star quads are stranded into a basic unit. 5 or 10 basic units each are stranded into one main unit. The star quads are grouped in units and stranded in layers to form the cable core.Standard make up is per VDE 0816 in the Cable Make Up Diagram

Core Wrapping: One or more non-hygroscopic polyester tapes are helically or longitudinally laid with an overlap. These tapes furnish thermal, mechanical as well as high dielectric protection between shielding and individual conductors

Moisture Barrier: A layer of aluminium tape (0.2mm) coated with PE-copolymer on one or both sides is applied longitudinally with overlap over the cable core to provide 100% electrical shielding coverage and ensure a barrier against water vapor

Sheath: Black low density polyethylene type 2YM2 as per VDE 0207-3, being able to withstand exposure to sunlight, temperature variations, ground chemicals and other environmental contaminants Ripcord may be provided for slitting the sheath longitudinally to facilitate its removal

Ripcord:Ripcord may be provided for slitting the sheath longitudinally to facilitate its removal

Spare Pairs (optional): Spare pairs may be incorporated for 200 and larger pair cables

Continuity Wire (optional): Tinned copper drain wire may be longitudinally laid to ensure electrical continuity of the screen

Optional Construction

Jelly Filled Cable

The cable core interstices are filled with petroleum jelly to avoid longitudinal water penetration withinthe cable. The water resistant filling compound is applied to the air space between non-hygroscopic tape and shield, shield and sheath within the cable core

Armoured Cable

Steel Wire Armour or Corrugated steel tape armour is applied over an optional inner polyethylene sheath. For steel tape version, the 0.15mm thick steel tape is coated with a copolymer and applied with an overlap. An outer polyethylene sheath is applied over the armour

Type Codes

A- Outdoor Cable
02YS Foam Skin insulation
Continuous core filling
(L)2Y  Laminated sheath(copolymer-coated aluminium tape laminated to PE outer sheath)
SR  Corrugated steel tape
b Armouring
Messenger of galvanized steel wires
StIII Star quad in local cables
Bd  Unit-type stranding

Electrical Properties

Nominal Conductor Diameter mm 0.6 0.8
Conductor Gauge Size AWG - 20
Conductor Size mm2 0.283 0.5
Maximum A verage Conductor Resistance @20°C Ω/km 63 34.6
Minimum Insulation Resistance @500V DC MΩ.km 5000 5000
Maximum Mutual Capacitance @800Hz      100% of all values nF/km 42 42
                                                         95% of all values nF/km 40 40
Capacitance Unbalance @800Hz pair-to-pair      
    K1         100% of values max pF/500m 800 800
                 98% of values max pF/500m 400 400
    K9-12    100% of values max pF/500m 300 300
                 90% of values max pF/500m 100 100
Maximum Conductor Loop Resistance @20°C Ω/km 130 73.2
Impedance @0.8KHz 664 500
Maximum Average Attenuation @0.8KHz dB/km 0.91 0.68
Dielectric Strength 50Hz      
           Conductor to Conductor (2mins) V AC 500 500
           Conductor to Screen (2mins) V AC 2000 2000
Maximum Operating VoltagePeak Value V 225 225
Nominal Insulation Thickness (Air Core) mm 0.25 0.3
                                        (Jelly Filled) mm 0.36 0.44
Nominal Insulated Conductor Diameter (Air Core) mm 1.1 1.4
                                                   (Jelly Filled) mm 1.32 1.68

Mechanical and Thermal Properties

Temperature range during operation (fixed state): -30°C – +70°C

Temperature range during installation (mobile state): -20°C – +50°C

Minimum bending radius: 10 x Overall Diameter (unarmoured cables);15 x Overall Diameter (armoured cables)

Colour Code

Standard colour code is per VDE 0816 given in Colour Code Chart

Dimensions And Weight

Foam Skin Insulated and LAP Sheathed Air Core Cable                VDE CODE: A-02YS(L)2Y…x2x0.6/0.8mm StIII Bd

Cable Code Number of
Pairs
Nominal Insulation Thickness
mm
Nominal Sheath
Thickness
mm
Nominal Overall
Diameter
mm
Nominal
Weight
kg/km
0.6mm Conductor, 1.1mm Insulated Wire
TP816A-02YS(L)2Y-StIII-Bd-50P06 50 0.25 1.8 22.0 565
TP816A-02YS(L)2Y-StIII-Bd-100P06 100 0.25 2.0 28.0 960
TP816A-02YS(L)2Y-StIII-Bd-200P06 200 0.25 2.2 37.5 1785
TP816A-02YS(L)2Y-StIII-Bd-300P06 300 0.25 2.2 44.5 2545
TP816A-02YS(L)2Y-StIII-Bd-400P06 400 0.25 2.6 51.0 3370
TP816A-02YS(L)2Y-StIII-Bd-600P06 600 0.25 3.0 61.5 4855
TP816A-02YS(L)2Y-StIII-Bd-800P06 800 0.25 3.4 70.0 6315
TP816A-02YS(L)2Y-StIII-Bd-1000P06 1000 0.25 3.4 76.5 7850
TP816A-02YS(L)2Y-StIII-Bd-1200P06 1200 0.25 3.8 83.0 9390
0.8mm Conductor,1.4mm Insulated Wire
TP816A-02YS(L)2Y-StIII-Bd-50P08 50 0.3 1.8 25.0 840
TP816A-02YS(L)2Y-StIII-Bd-100P08 100 0.3 2.0 33.0 1500
TP816A-02YS(L)2Y-StIII-Bd-150P08 150 0.3 2.2 39.5 2165
TP816A-02YS(L)2Y-StIII-Bd-200P08 200 0.3 2.2 45.5 2825
TP816A-02YS(L)2Y-StIII-Bd-300P08 300 0.3 2.6 55.0 4145
TP816A-02YS(L)2Y-StIII-Bd-400P08 400 0.3 3.0 63.0 5475
TP816A-02YS(L)2Y-StIII-Bd-500P08 500 0.3 3.4 69.5 6750
TP816A-02YS(L)2Y-StIII-Bd-600P08 600 0.3 3.4 76.0 8090
TP816A-02YS(L)2Y-StIII-Bd-750P08 750 0.3 3.8 84.5 10065

 

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