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Ruby Mica® Glass / Mica Silicone VPI Tape is a lamination of calcined rnuscovite mica paper with glass cloth. High thermal-grade silicone resin is used as a bonding agent making it a Class H insulation product. Mica paper is infused with Ararnid° Fibroids to strengthen and enhance its resin-absorption capabilities making it suitable for vacuum pressure impregnation (VP!). Post-curing temperature-index is 200°C.
A choice of uncalcined highly porous muscovite mica paper with Class F epoxy resin as a binding agent is also
available. This Glass / Mica Epoxy VPI Tape contains zinc napthenate as an accelerator.
Main slot wall insulation of conductor coils and bars in HT motors and generators. It is suitable for both hand and machine-taping on coils / bars of high-voltage rotating-machines. Its outstanding resin-penetration properties make it ideal for single vacuum pressure impregnation of fiilly-wound stator coils.
AVAILABILITYTape roll:
Length : 25 – 200 m
Width : 10 – 30 mm
12 months at ≤ 25°C • 24 months at ≤ 5°C
| Properties | Test Method | Unit | Value | Value |
|---|---|---|---|---|
| Nominal Thickness | IEC 60371 – 2 | mm | 0.1 ± 0.01 | 0.12 ± 0.01 |
| Total Substance | IEC 60371 – 2 | g/m² | 118 ± 10 | 164 ± 15 |
| Mica Paper | IEC 60371 – 2 | g/m² | 70 ± 5 | 113 ± 8 |
| Glass Content | IEC 60371 – 2 | g/m² | 33 ± 2 | 33 ± 2 |
| Aramid® Fibroids | IEC 60371 – 2 | g/m² | 5 ± 2 | 7 ± 3 |
| Resin Content | IEC 60371 – 2 | g/m² | 10 ± 2 | 12 ± 3 |
| Tensile Strength | IEC 60371 – 2 | N/cm | ≥ 150 | ≥ 150 |
| Air Porosity | IEC 60371 – 2 | s/100 ml | <1600 | <2500 |
| Air Porosity | IEC 60371 – 2 | % | ≤ 0.5 | ≤ 0.5 |
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