-  MVLC
 
 
 
 
 
 
 
 
 
 
 
 
 
  Bus Bar Insulation Heat Shrinkable Tubing
 
 
 
Voltage Class 1 kV~36kV Ideal for high and low voltage bus bar insulation
Medium and heavy wall heat shrinkable tubing for protection and insulation of bus bar against accidents caused by electrified bare bus bar.
 
Applications :
  Bus bar insulation and protection
  In switchgear cabinets where space is limited and air spacing between       bus bars need to be kept at minimal
 
 
 
 
 
Temperature Range Product Code Cross References Colour
Operating Temperature: -40 °C~ 105 C Raychem : BBIT / BPTM   Red, Yellow, Black, Green
Shrink Temperature: 125 °C DSG Canusa : CBTM / CBTH  
  3M : BBI  
   
  Features / Benefits
    Reduce bus bar clearance requirements
    Give designers more freedom in designing switchgear cabinets when space premium
    Protects against accidental flashover up to 36kV
    Protects against short circuit and electrical leakage caused small animals
    Protects against corrosion, dirt and other contaminants that may cause accidental flashover
    Halogen Free (optional)
    Flame resistant with oxygen index higher than 27 (optional)
    Available in continuous length roll form for convenient and economical installation
  Clearance Reduction Guide
 
Bus bar Type Applicable Product
Min. Clearance Required (mm)
Test Value Advice Value
Electrode to electrode Electrode to ground Electrode to electrode Electrode to ground
Round sectional Up to 10 kV S1-10 75 85 85 95
Rectangle sectional Up to 10 kV S1-10 85 95 90 100
Round sectional Up to 35 kV S1-35 160 220 200 270
Rectangle sectional Up to 35 kV S1-35 180 260 220 285
  Technical Details
 
Test Item Test standerd
Typical performance
Tensile strength ASTM D2671 ≥10 Mpa
Break down elongation ASTM D2671 ≥400 %
Tensile strength after aging ASTM D2671 ≥10 Mpa
Break down elongation after aging(136°C for 168h) ASTM D2671 ≥400 %
Flame retardant ASTM D2863 Oxygen Index≥27
Dielectric strength ASTM D2671 ≥15 kV/mm
Heat shock (200°C for 4h) ASTM D2671 no drop, no flow
Low temperature flexibility(-40°C for 4h) ASTM D2671 no cracking
Water absorption ASTM D570A ≤0.5%
Copper corrosion(158°C for 168h) ASTM 2671 pass
Long term ageing/ elongation at break IEC 60684-2 >175%
Resistance to selected fluids:
  Tensile strength
  Elongation at break
IEC 60684-2 8mpa >250%
  Product Selection
 
a + b
min ~ max.
d
min ~ max.
S1-10 min. thickness for 10kV-24kV shrink on the bus bar S1-35 min. thickness for 24kV-36kV shrink on the bus bar
15 25 10 18 Ø 25 / 10 1.6 Ø 25 / 10 2.5
22 35 15 25 Ø30 / 12 1.6 Ø 30 / 2 2.5
28 45 20 30 Ø40 / 16 1.6 Ø 40 / 16 2.5
38 55 25 40 Ø50 / 20 1.6 Ø 50 / 20 2.5
45 65 35 50 Ø65 / 25 (075 / 30) 1.6 Ø 65 / 25 (075 / 30) 2.5
55 90 40 60 Ø85 / 35 (80 / 32) 1.6 Ø 85 / 35 ( 80 / 32) 2.5
70 110 50 80 Ø100 / 40 1.6 Ø 100 / 40 2.5
90 140 60 95 Ø120 / 50 1.6 Ø 120 / 50 2.5
105 180 70 120 Ø150 / 60 1.6 Ø 150 / 60 2.5
130 210 85 140 Ø175 / 75 1.6 Ø 175 / 75 2.5
140 260 95 170 Ø210 / 85 1.6 Ø 210 / 85 2.5