Contact Us

+852 2116 1040

+86 180 1862 7191

sales@caledonian-cables.com

Quick Contact

Hot

  • Fire Resistant Cables
  • EN50288-7 Cables
  • Composite Cables
  • EN50288-7 Cables

Certificate

  • Caledonian
  • Caledonian
  • Caledonian
  • Caledonian
  • Caledonian

Join the newsletter

Subscribe to get our latest content by email.

    We won't send you spam.

    Unsubscribe at any time.

    Foam Skin Insulated & LAP Sheathed Jelly Filled Cables to IEC60708

    Application

    The cables are designed for use in access or trunk networks, from telephone exchange to subscriber area. 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

    • IEC 60708

    Construction

    Conductors

    Solid annealed bare copper, 0.4/0.5/0.6/0.63/0.8/0.9 mm as per class 1 of IEC 60228 & ASTM B-3

    Insulation

    Foam Skin which is a composite polyethylene insulation made of an inner cellular layer and an outer solid skin, as per IEC 60708/BS EN 50290-2-23/BS 6234/ ASTM D 1248/NFC 32-060/VDE 0207

    Twisted Pairs

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

    Cabling Element

    Twisted Pairs

    Cable Core Assembly

    Cables with 100 pairs or less are composed of 10-pair sub-units; cables with over 100 pairs are composed of 50 or 100-pair units. Any extra pairs form a separate unit. Units are identified by colour coded binders. Standard construction is per IEC 60708 given in 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 (0.15mm) 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. In cables with more than 200 pairs, the aluminum tape may be corrugated for improved cable flexibility

    Filling (optional)

    The cable core interstices are filled with petroleum jelly to avoid longitudinal water penetration within the 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

    Sheath

    Black low density polyethylene as per BS 6234/IEC 60708/ASTM D 1248, being able to withstand exposure to sunlight, temperature variations, ground chemicals and other environmental contaminants

    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)

    One tinned copper drain wire may be longitudinally laid to ensure electrical continuity of the screen

    Optional Construction

    Armoured Cable

    Steel wire armour or corrugated steel tape armour is applied over an optional inner polyethylene sheath. For steel tape version, the 0.2/0.5mm thick steel tape is coated with a copolymer and applied with an overlap. An outer polyethylene sheath is applied over the armour

    Self-Support Cables

    A 7-strand galvanized steel strand is used as support wire. Black polyethylene sheath covers both core and support wire in a figure-8 construction

    Electrical Properties

    Nominal Conductor Diameter

    mm

    0.4

    0.5

    0.6

    0.63

    0.8

    0.9

    Conductor Gauge Size

    AWG

    26

    24

    -

    22

    20

    19

    Conductor Size

    mm2

    0.126

    0.196

    0.283

    0.312

    0.5

    0.636

    Maximum Average Conductor Resistance @20°C

    Ω/km

    143

    91

    63

    58

    34.6

    28

    Minimum Insulation Resistance @500V DC

    MΩ.km

    5000

    5000

    5000

    5000

    5000

    5000

    Maximum Average Mutual Capacitance @800Hz

    nF/km

    53

    53

    56

    56

    59

    59

    Maximum Individual Mutual Capacitance @800Hz
    (for 99% cases)

    nF/km

    60

    60

    60

    60

    64

    64

    Maximum Individual Capacitance Unbalance
    @800Hz pair-to-pair

    pF/500m

    250

    250

    250

    250

    160

    160

    Maximum Individual Capacitance Unbalance
    @800Hz pair-to-pair ( for 95% cases)

    pF/500m

    150

    150

    150

    150

    100

    100

    Maximum Individual Capacitance Unbalance
    @800Hz pair-to-ground

    pF/500m

    1700

    1700

    1700

    1700

    1700

    1700

    Maximum Individual Capacitance Unbalance
    @800Hz pair-to-ground ( for 95% cases)

    pF/500m

    1000

    1000

    1000

    1000

    1000

    1000

    Maximum Conductor Loop Resistance @20°C

    Ω/km

    300

    192

    130

    114

    73

    60

    Impedance @1KHz

    994

    796

    665

    660

    500

    445

    Impedance @100KHz

    147

    134

    127

    125

    124

    122

    Impedance @512KHz

    120

    118

    117.5

    117

    116.5

    116

    Impedance @1MHz

    117

    115

    114.5

    114

    113.5

    113

    Maximum Average Attenuation @0.8KHz

    dB/km

    1.64

    1.30

    1.1

    1.04

    0.9

    0.74

    Maximum Average Attenuation @1KHz

    dB/km

    1.68

    1.35

    1.14

    1.08

    0.93

    0.76

    Maximum Average Attenuation @3KHz

    dB/km

    3.18

    2.52

    2.3

    2.01

    1.74

    1.42

    Maximum Average Attenuation @150KHz

    dB/km

    11.4

    8.3

    7.2

    6.2

    5.7

    4.4

    Maximum Average Attenuation @772KHz

    dB/km

    24.3

    19.4

    17.4

    15.4

    13.1

    10.8

    Maximum Average Attenuation @1000KHz

    dB/km

    27.1

    21.4

    18.5

    17.5

    13.7

    12.8

    Dielectric Strength              

           Conductor to Conductor (1min)

    V DC

    500

    500

    500

    500

    500

    500

           Conductor to Screen (1min)

    V DC

    1000

    1000

    1000

    1000

    1000

    1000

    Nominal Insulation Thickness

    mm

    0.175

    0.20

    0.25

    0.26

    0.3

    0.3

    Nominal Insulated Conductor Diameter

    mm

    0.75

    0.90

    1.1

    1.15

    1.4

    1.5

    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 IEC 60708 given in Colour Code Chart

    Dimensions And Weight

    Foam Skin Insulated and LAP Sheathed Jelly Filled Cable to IEC 60708

    Cable Code Number of Pairs Nominal Sheath
    Thickness
    mm
    Nominal Overall
    Diameter
    mm
    Nominal Weight
    kg/km
    0.4mm Conductor, 0.75mm Insulated Wire

    TP708-02YSF(L)2Y-10P04

    10

    1.5

    9.0

    82

    TP708-02YSF(L)2Y-20P04

    20

    1.5

    10.0

    120

    TP708-02YSF(L)2Y-30P04

    30

    1.5

    11.0

    161

    TP708-02YSF(L)2Y-50P04

    50

    1.5

    14.0

    239

    TP708-02YSF(L)2Y-70P04

    70

    1.5

    15.0

    315

    TP708-02YSF(L)2Y-100P04

    100

    1.5

    18.0

    434

    TP708-02YSF(L)2Y-150P04

    150

    1.5

    21.0

    630

    TP708-02YSF(L)2Y-200P04

    200

    1.8

    24.0

    824

    TP708-02YSF(L)2Y-300P04

    300

    1.8

    29.0

    1195

    TP708-02YSF(L)2Y-400P04

    400

    1.8

    32.0

    1556

    TP708-02YSF(L)2Y-500P04

    500

    2.0

    36.0

    1921

    TP708-02YSF(L)2Y-600P04

    600

    2.0

    39.0

    2282

    TP708-02YSF(L)2Y-800P04

    800

    2.5

    44.0

    2987

    TP708-02YSF(L)2Y-900P04

    900

    2.5

    46.0

    3364

    TP708-02YSF(L)2Y-1000P04

    1000

    2.5

    49.0

    3712

    TP708-02YSF(L)2Y-1200P04

    1200

    2.8

    53.0

    4411

    TP708-02YSF(L)2Y-1500P04

    1500

    2.8

    59.0

    5483

    TP708-02YSF(L)2Y-1800P04

    1800

    3.2

    64.0

    6567

    TP708-02YSF(L)2Y-2100P04

    2100

    3.2

    69.0

    7626

    TP708-02YSF(L)2Y-2400P04

    2400

    3.5

    73.0

    8663

    TP708-02YSF(L)2Y-2700P04

    2700

    3.5

    77.0

    9697

    TP708-02YSF(L)2Y-3000P04

    3000

    3.5

    81.0

    10729

     

    Contact Us

    Add the link of current page.

    Clear

    Submit

    Instant Messaging

    WhatsApp :

    +852 6230 0392

    Skype :

    Caledonian Cables

    live:1cb87739a29fb08c

    Wechat :
    The personal information you enter is only used to reply to your message, It will not be leaked or used for other purposes.