Glass / Mica / Glass Folium
Highly-porous mica paper is selected which has excellent resin absorbing properties. The GM Tape’s good flexibility with minimal thickness contributes to the ease in conductor taping.
An additional layer of glass cloth may also be laminated on top of mica paper. This GMG Tape has an increased thermal conductivity for better coil-heat dissipation and nearly doubles the tensile-strength of GM tape.
APPLICATION
Inter-turn conductor insulation suitable for resin-poor VPI insulation system of HT motors and generators, Class H insulation in transformers, induction furnace coil insulation etc.
AVAILABILITY
Tape roll / Folium / Wrapper :
Length : 25 – 500 m
VVidth : 6 – 1000 mm
PACKING
Tapes are packed in airtight robust boxes protecting them from dirt, dust and rnoisture. The packaging also ensures safe transit and storage.
STORAGE
6 months at ≤ 20°C • 12 months at ≤ 5°C
| Properties | Test Method | Unit | Value | Value | Value | Value | Value |
|---|---|---|---|---|---|---|---|
| Nominal Thickness | IEC 60371 – 2 | mm | 0.1 ± 0.01 | 0.13 ± 0.01 | 0.15 ± 0.01 | 0.18 ± 0.02 | 0.2 ± 0.02 |
| Total Substance | IEC 60371 – 2 | g/m² | 130 ± 10 | 165 ± 15 | 195 ± 15 | 235 ± 20 | 260 ± 20 |
| Mica Paper | IEC 60371 – 2 | g/m² | 80 ± 5 | 120 ± 9 | 150 ± 10 | 180 ± 12 | 200 ± 15 |
| Glass Content | IEC 60371 – 2 | g/m² | 23 ± 3 | 32 ± 3 | 32 ± 3 | 32 ± 3 | 32 ± 3 |
| Resin Content | IEC 60371 – 2 | g/m² % |
15 ± 3 12 – 15 |
20 ± 3 12 – 15 |
25 ± 3 12 – 15 |
30 ± 3 12 – 15 |
35 ± 3 12 – 15 |
| Tensile Strength | IEC 60371 – 2 | N/cm | ≥ 75 | ≥ 120 | ≥ 120 | ≥ 120 | ≥ 120 |
| Volatile Contents | IEC 60371 – 2 | % | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
| Break Down Voltage | IEC 60243 – 1 | kV/mm | ≥ 15 | ≥ 15 | ≥ 15 | ≥ 15 | ≥ 15 |
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