Bus-bar protective bushing-Bus-bar protective bushing- Cooling&heat-shrinkable cable accessory/Bus-bar protective bushing-Product-BAODING JIKAI POWER EQUIPMENT CO., LTD.

BAODING JIKAI POWER EQUIPMENT CO., LTD.

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    Bus-bar protective bushing

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    Product Overview :
    Radiated cross linked heat shrinkable bus bar insulating material is good for the high& low switch box. It can increase the insulation level, decrease the box's volume, and will prevent the sewage lightning, the short circuit, flashover Heat shdnkabte bus bar insulating material was compound by polyolefins and other additive though mixing, pelletizing, molding, high electron energy radiating and extending. It can be satisfactory for all the insulating requirements as the superior insulating characters, heat stability, flame resistance, low halogen low smoke, softness and no cracking


    The Specification of 10kV Bus-bar Insulating Heat-shrinkable Tube:

    Model specification

    Product

    After contraction

    Correspondence bus-bar specifications
    Wall thickness after contracting at bus-bar
    Perimeter
    Wall thickness
    Perimeter
    Wall thickness
    MPG-10-20/10
    63
    1.2±0.2
    31
    2.2±0.2
    30 x 3
    1.8±0.2
    30/15
    95
    1.2±0.2
    47
    2.2±0.2
    30 x 3
    1.8±0.2
    40/20
    125
    1.2±0.2
    62
    2.2±0.2
    40 x 4
    1.8±0.2
    50/25
    157
    1.2±0.2
    78
    2.2±0.2
    50 x 5
    1.8±0.2
    65/30
    204
    1.4±0.2
    94
    2.5±0.2
    60 x 6
    2.0±0.2
    80/40
    250
    1.4±0.2
    125
    2.5±0.2
    80 x 8
    2.0±0.2
    100/50
    314
    1.4±0.2
    157
    2.5±0.2
    100 x 10
    2.0±0.2
    120/60
    376
    1.4±0.2
    188
    2.5±0.2
    120 x 10
    2.0±0.2
    150/75
    470
    1.4±0.2
    235
    2.5±0.2
    Be used for extra bus-bar

    Representation of the Model and Specification:

    Techical Parameter of the Bus-bar Shrinkable Insulating Material:

    Test project

    Measured value
    Test method
    Breakdown strength
    >20kV/mm
    GB311
    Power frequency withstand voltage
    42kV,1min
    GB1408
    Lightning impulse
    75kV,peak
    GB1408
    Moving-thermal stability test
    4s,31.5kA 80kApeak
    GB2706
    Volume resistivity
    1.0 x 1014Ω.cm
    GB1044
    Dielectric constant
    >=2.5
    GB1049
    Oxygen index
    >=30
    GB1406
    Wester absorption
    <=0.1%
    GB1034
    Low-temperature flexibility
    -55℃±2℃ 4h (Through)
     
    Corrosion test
    23℃±2℃ humidity 95%4h (Through)
     
    Stretch strength
    >=14.0Mpa
    GB1040
    Elonation at break
    >=400%
    GB1040
    Operating temperature range
    -50℃-130℃
     
    Acceterated aging test
    168℃ 7days Through
    GB1040


    The Specification of 35kV Bus-bar Insulating Heat-shrinkable Tube:

    Model specification

    Product

    After contraction

    Correspondence bus-bar specifications
    Wall thickness after contracting at bus-bar
    Perimeter
    Wall thickness
    Perimeter
    Wall thickness
    MPG-1-20/10
    63
    2.0±0.3
    31
    4.0±0.3
    30 x 3
    3.5±0.3
    30/15
    95
    2.0±0.3
    47
    4.0±0.3
    30 x 3
    3.5±0.3
    40/20
    125
    2.0±0.3
    62
    4.0±0.3
    40 x 4
    3.5±0.3
    50/25
    157
    2.0±0.3
    78
    4.5±0.3
    50 x 5
    4.0±0.3
    65/30
    204
    2.0±0.3
    94
    4.5±0.3
    60 x 6
    4.0±0.3
    80/40
    250
    2.5±0.3
    125
    5.0±0.3
    80 x 8
    4.5±0.3
    100/50
    314
    2.5±0.3
    157
    5.0±0.3
    100 x 10
    4.5±0.3
    120/60
    376
    2.5±0.3
    188
    5.0±0.3
    120 x 10
    4.5±0.3
    150/75
    470
    2.5±0.3
    235
    5.0±0.3
    Be used for extra bus-bar