Stranded loose tube cable, outdoor-use, SWA-steel wire armour, HDPE sheath - black, 12x12-fibers G657.A1


Steel wire armoured stranded loose tube cable with good mechanical protection and thus rodent protected.

The cable features a two jacket construction (inner sheath in LDPE outer in HDPE), is built with up to 144 fibers in a 12-strand stranding and is suitable for outdoor duct or direct buried installation.

Technical Data

Cable type

Stranded loose tube cable

Jacket material

UV stable HDPE

CPR classification Fca

Steel wire armoured (SWA)

Cable design

Double jacket

Fiber type


Fiber Count 144


Cable family code OT3x2,3LWH
DIN/VDE Code A-DQ2YB2Y (R...vzk) nx2,3
DoP no.: D9965
Loose-tube count 12
Fiber count per tube 12
Loose tube nominal diameter [mm] 2.3 mm
Loose-tube colour coding, - on each layer, rest of tubes white (fillers uncoloured or black)

FRP/coat. CSM nominal thickness [mm] 2.5 / 6.7
Outer jacket nominal thickness [mm] 1.3 mm
Cable outer diameter [mm] 19.4 mm
Cable version


Standard put-up length on drum 2100 m ± 5%

Mechanical Data

Cable weight 610.0 kg/km / 409 lbs/1000ft
Tensile performance - in service


Tensile performance - in service test method

IEC 60794-1-21:E1

Tensile performance - in service acceptance criteria

Δα ≤ 0,05 dB

Tensile performance - during installation

8000 N

Tensile Performance during Installation TestMethod

IEC 60794-1-21:E1

Tensile performance - during installation acceptance criteria

Δα ≤ 0,05 dB after test

Crush resistance - long term

2000 N/100mm

Crush resistance - long term test method

IEC 60794-1-21:E3A

Crush resistance - long term acceptance criteria

Δα ≤ 0,05 dB prior release, no damage

Impact resistance

25 Nm, 3 impacts, d=20 mm, R=300 mm

Impact resistance test method

IEC 60794-1-21:E4

Impact resistance acceptance criteria

Δα ≤ 0,05 dB after test, no damage


L = 1 m, rotation angle ±180°, 10 cycles

Torsion test method

IEC 60794-1-21:E7

Torsion acceptance criteria

no damage

Cable bend

d=20 x cable diameter, 4 turns, 3 cycles

Cable bend - test method

IEC 60794-1-21:E11A

Cable bend - acceptance criteria

Δα ≤ 0,05 dB after test, no damage

Repeated bending

R=20 x cable diameter, 25 cycles

Repeated bending test method

IEC 60794-1-21:E6

Repeated bending acceptance criteria

no damage

Climatic Data

Temperature cycling -40 °C +70 °C / -40 °F +158 °F
Installation temperature -5 °C +50 °C / +23 °F +122 °F
Operation temperature -40 °C to +70 °C / -40 °F to +158 °F
Transport / store temperature -40 °C to +70 °C / -40 °F to +158 °F
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