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Fiberglass Sheet Epoxy Grade |
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| Based on epoxy resin and fiberglass reinforcement, various grades of laminates are manufactured to NEMA G-10 and G-11 standards. Also, with the stringent requirement of high tracking resistance (KA3C) and high di-electric strength in view, special type laminates are offered for MV Switchgear applications. Similarly, fire-retardant grade laminates are offered for specific applications. These are available in standard sizes, in the thickness range of 0.4 mm - 60 mm & above. Of course, extra - long Sheets / strips of more than 2400 mm, without joints, are also offered for coil support in Generators. A wide range of Laminates made out of fiberglass CSM and woven fabric bonded with Epoxy or Polyester resins are offered for a variety of applications. These are made to EP2 / EP3 and GPO1/ GPO2 / GPO3 as per Indian standard IS1O192-1982 |
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| Parameter : |
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| Material Tested: |
| Glass epoxy sheet EP 3 Grade / Nima G10 grade |
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| Type of Test: |
- Cross breaking strength
Cross breaking strength
- Compressive Strength
- Tensile Strength
- Shear Strength
- Water Absorption
- Temperature limit
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| Test method: |
| IS: 10192-82, Ep3 Grade, Neema L1 Grade |
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| No |
Item |
Specifications |
| 1 |
Compressive Strength (N/mm²) |
5-12 mm thick sample 400 |
| 2 |
Cross breaking Strength (N/mm²) |
>350 |
| 3 |
Tensile Strength (N/mm²) |
>280 |
| 4 |
Shear Strength (N/mm²) |
>100 |
| 5 |
Water Absorption |
0.75% |
| 6 |
Temperature Limit |
160° |
| 7 |
Comparatrive Tracking index |
>250 Volts |
| 8 |
Breakdown Volage (4mm Sheet) (Flat Wise) |
14 KV / mm |
| 9 |
Dissipation Factor at 500V |
0.04 |
| 10 |
Insulation Resistance |
10000 m ohm |
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| Characteristics & Applications : |
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- As per NEMA Grade G-10, mechanical, electrical and electronic applications; high strength under moderate temperature; good electrical properties under high humidity.
- As per NEMA Grade FR-4, with high mechanical strength at room temperature, good electrical properties under dry and humidity conditions, flame retardant, suitable for mechanical, electrical and electronic applications.
- As per NEMA Grade G-11, with high strength at room temperature and 150 º, good electrical properties under dry and humidity conditions, used for making insulating parts in electrical, electronic and other industries.
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