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    Heat Shrink Bus bar Protection Tubing

    Moodel:HBBT

    Heat Shrink Bus bar protection Tubing (HBBT) Provides high resistance to tracking and arching and used to enhance the insulation properties of bus bar in switchgear and substation.

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    Heat Shrink Bus bar protection Tubing (HBBT) Provides high resistance to tracking and arching and used to enhance the 

    insulation properties of bus bar in switchgear and substation. The continuous length of supplied products makes it to be 

    used more conveniently and economically. Avoid short circuit fault caused by small animals such as mice, snakes and so on.

    Prevent bus bar from chemical corrosion effected by strong acid, alkali, salt, etc. Avoid accidental injure, for instance, that 

    overhaul person enter electriferous clearance by mistakes. Be suit to the trend of smaller switch cabinets. Be applied in bus 

    duct for insulation among buses.


    COLORS: Red, Green, Yellow, Black(Other colors available on request.


    Item

    Test Method

    Value

    Tensile Strength

    ASTM D 2671

    ≥8Mpa

    Elongation at break

    ASTM D 2671

    ≥300%

    Tensile Strength after aging

    130℃ x 168h

    ≥6.9Mpa

    Elongation at breakafter aging

    130℃ x 168h

    ≥100%

    Longitudinal Shrinkage

    ASTM D 2671

    -8%~8%

    Oxygen Index

    GB/T 2406

    ≥27

    Heat Shock

    JB7829 D

    No Crack

    Breakdown Strength

    ASTM 3 149

    ≥20KV/mm

    Rigidity (Shore A)

    GB 2411

    ≤90

    Volume Resistivity

    IEC 60093

    10 14Ω . Cm


    1KV Heat Shrink Bus bar protection Tubing

    SIZE (mm)

    As Supplied(mm)

    After Recovery(mm)

    Packing (m/roll)

    I. D.

    I. D. (max)

    W. T.

    30

    31.5±1.0

    15.0

    1.0±0.15

    50

    35

    36.5±1.0

    17.5

    1.0±0.15

    50

    40

    41.5±1.0

    20.0

    1.0±0.15

    50

    50

    ≥50

    25.0

    1.1±0.15

    25

    60

    ≥60

    30.0

    1.2±0.15

    25

    70

    ≥70

    35.0

    1.3±0.15

    25

    80

    ≥80

    40.0

    1.3±0.20

    25

    90

    ≥90

    45.0

    1.3±0.20

    25

    100

    ≥100

    50.0

    1.3±0.20

    25

    120

    ≥120

    60.0

    1.3±0.20

    25

    150

    ≥150

    75.0

    1.3±0.20

    25

    180

    ≥180

    90.0

    1.3±0.20

    25

    210

    ≥210

    105

    1.3±0.30

    25

    230

    ≥230

    115

    1.3±0.30

    25

    250

    ≥250

    125

    1.3±0.30

    25

    300

    ≥300

    150

    1.3±0.30

    25

    10kv Heat Shrink Bus bar protection Tubing

    SIZE (mm)

    As Supplied(mm)

    After Recovery(mm)

    Packing (m/roll)

    I. D.

    I. D. (max)

    W. T.

    15

    ≥15

    6.0

    2.5±0.20

    25

    20

    ≥20

    8.0

    2.5±0.20

    25

    25

    ≥25

    10.0

    2.5±0.20

    25

    30

    ≥30

    12.0

    2.5±0.20

    25

    40

    ≥40

    16.0

    2.8±0.30

    25

    50

    ≥50

    20.0

    2.8±0.30

    25

    65

    ≥65

    26.0

    2.8±0.30

    25

    75

    ≥75

    30.0

    2.8±0.30

    25

    85

    ≥85

    34.0

    2.8±0.30

    25

    100

    ≥100

    40.0

    2.8±0.30

    25

    120

    ≥120

    48.0

    2.8±0.30

    25

    150

    ≥150

    60.0

    2.8±0.30

    25

    180

    ≥180

    72.0

    2.8±0.30

    25

    210

    ≥210

    84.0

    2.8±0.30

    20

    230

    ≥230

    92.0

    2.8±0.30

    20

    250

    ≥250

    100

    2.8±0.30

    20

    300

    ≥300

    120

    2.8±0.30

    15

    35kv Heat Shrink Bus bar protection Tubing

    SIZE (mm)

    As Supplied(mm)

    After Recovery(mm)

    Packing (m/roll)

    I. D.

    I. D. (max)

    W. T.

    30

    ≥30

    15.0

    4.0±0.30

    15

    40

    ≥40

    20.0

    4.0±0.30

    15

    50

    ≥50

    25.0

    4.0±0.30

    15

    65

    ≥65

    33.0

    4.0±0.30

    15

    75

    ≥75

    38.0

    4.0±0.30

    15

    85

    ≥85

    43.0

    4.0±0.30

    15

    100

    ≥100

    50.0

    4.0±0.30

    15

    120

    ≥120

    60.0

    4.0±0.30

    15

    150

    ≥150

    75.0

    4.0±0.30

    15

    180

    ≥180

    90.0

    4.0±0.30

    15

    210

    ≥210

    105

    4.0±0.30

    15

    230

    ≥230

    115

    4.0±0.30

    15

    250

    ≥250

    125

    4.0±0.30

    15

    300

    ≥300

    150

    4.0±0.30

    15


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