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3M BBI-A Shrinkable Tubing for Bus Bar

Category Polymer , Thermoset
Manufacturer 3M
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
3M Heat Shrinkable Tubing for Bus Bar BBI-A Series is designed for insulating rectangular, square and round bus bar rated from 5 kV through 35 kV. It will also cover and insulate inline bolted connections of rectangular bus bars. The tubing meets the requirements of ANSI/IEEE Standard C37.20. The standard tubing lengths are 20 ft (6.1 m) and 50 feet (15.2m). 3M BBI-A Tubing is made of a specially formulated cross-linked polyolefin. The tubing is colored orange-red. The material has high resistance to splitting, good solvent resistance to splitting, good solvent resistance and excellent tracking resistance properties. The tubing shrinks easily with industry standard methods, forming an aesthetically appealing insulation cover.Information provided by 3M
Physical Properties Metric English Comments
Water Absorption 0.30 %
0.30 %
7 days at RT; MIL-I-23053/15A
Mechanical Properties Metric English Comments
Tensile Strength at Break 5.60 - 16.5 MPa
812 - 2390 psi
Fluid Resistance, 24 hrs immersed; MIL-I-23053/15A
15.0 MPa
2180 psi
ASTM D257
10.0 MPa

@Temperature 175 °C,
Time 605000 sec
1450 psi

@Temperature 347 °F,
Time 168 hour
Accelerated Aging; MIL-I-23053/15A
Elongation at Break 575 %
575 %
ASTM D638
400 %

@Temperature 175 °C,
Time 605000 sec
400 %

@Temperature 347 °F,
Time 168 hour
Accelerated Aging; MIL-I-23053/15A
Electrical Properties Metric English Comments
Dielectric Strength 11.3 - 17.8 kV/mm
287 - 451 kV/in
Fluid Resistance, 24 hrs immersed; MIL-I-23053/15A
21.7 kV/mm

@Thickness 1.78 mm
550 kV/in

@Thickness 0.0700 in
ASTM D149
Track Resistance 25200 sec
25200 sec
1 in @ 2.5 kV; ASTM D2303
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