VSL-BZ18 is a coated fiberglass sleeve made by applying a blend of acrylic polymers to a closely woven electrical grade fiberglass substrate through high temperature. It is widely used for horsepower motors, dry or oil filled transformers generators, welding apparatus, relays and moisture sensitive equipment.
Excellent electrical, chemical and oil resistance
Excellent hat stability and flexibility for ease of push-up and recovery
Excellent resistance acids and alkalis and solvents
Test Item
1500V
2500V
4000V
Dielectric Breakdown Voltage
Min. average Voltage
Before Aged
1.5kV
2.5kV
4.5kV
Min.at any Point Voltage
Before Aged
1.0kV
2.0kV
3.0kV
Min. average Voltage
6HRS@245°C±5°C
1.0kV
1.5kV
3.0kV
Min.at any Point Voltage
6HRS@245°C±5°C
0.7kV
1.0kV
2.0kV
Thermal Endurance
No Crack
6HRS@245°C±5°C
Pass
Pass
Pass
Fire Resistance
VW-1
UL1441
Pass
Pass
Pass
Working Temperature
-10°C to +155°C
Standard Color
Natural
I.D.
Wall Thickness
Inside Diameter
Tolerance
4000V
2500V
1500V
1.0-1.5mm
+0.2-0.1mm
Min.0.2mm
Min.0.2mm
Min.0.2mm
2.0-4.0mm
+0.3-0.1mm
Min.0.2mm
Min.0.2mm
Min.0.2mm
5.0-8.0mm
+0.3-0.1mm
Min.0.25mm
Min.0.25mm
Min.0.25mm
9.0-18.0mm
+0.5-0.1mm
Min.0.3mm
Min.0.3mm
Min.0.3mm
20.0-30.0mm
+1.0-0.8mm
Min.0.3mm
Min.0.3mm
Min.0.3mm
Notes: Special size or color is available if you request.
