Listing ID #4376394
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Muscovite and Phlogopite thick mica insulation plate are designed for use in extreme conditions and have excellent properties like heat retarding, flame resisting, low thermal conductivity, good electrical insulation, high mechanical strength and non-toxic. It is widely used for Arc chutes, Bus bar support, Dynamic braking resistor, induction furnace, resistor heat dissipater etc.
| Characterstics | Unit | Testing Method | Muscovite Mica Type : CM 55 | Phlogophite Mica Type CP 55 |
| Standard Size | mm | IEC 371-2 | 1000 x 600, 1000 x 1200, 1000 x 2400 | |
| Desnsity | g/cm3 | IEC 371-2 | 2.10∼2.30 | 2.0∼2.30 |
| Flexural strength | N/mm2 | ISO 178 | ≥230 | ≥200 |
|
Comprehensive strength at 20°C at 250°C |
N/mm2 | ISO 604 |
≥400 ≥250 |
≥380 ≥240 |
|
Dielectric Strength at 23°C After Heating at 400°C/1 Hour and tested at 23°C After Heating at 600°C/1 Hour and tested at 23°C
|
KV/mm | IEC243 |
>25 >13 >10 |
>24 >12 >9 |
|
Insulation Resistence at 23 °C at 400 °C at 500 °C |
Ohm.cm | IEC 93 |
10ˆ16 10ˆ12 10ˆ9 |
10ˆ16 10ˆ12 10ˆ9 |
| Resistence to Temperature | Continous |
700 °C 800 °C |
800 °C 1000 °C |
|
| Peak | ||||
| Thermal Conductivity | W/m °C | ⊥ to laminate | 3.0 | 3.0 |
| = to laminate | 0.30 | 0.30 | ||
| Thermal Expansion | °C | ⊥ to laminate | 100 x 10ˆ-6 | 100 x 10ˆ-6 |
| = to laminate |
10 x 10ˆ-6 |
10 x 10ˆ-6 | ||
| Weight Loss @ 700 °C for 4 hrs | @550 °C for 4 hours | IEC 371-2 | < 1% | |
| @700 °C for 4 hours | < 2% | |||
| Water Absorption | After 24 hrs | ISO 62 | < 1.0 % | |
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