G-Etronax EP 11 - Sheet

Particularly good electrical and mechanical properties. Extremely high mechanical strength. Retains electrical properties at high air humidity. Radiation-proof insulation material (Thermal class H) with high resistance to chemicals.

Submit a request here

Specifications

  • Resin: Epoxy
  • Reinforcement: Glass fabric
  • Colour: Yellow/green

Closest relevant standards

IEC 60893:EP GC 308

NEMA LI 1:G-11

DIN 7735:Hgw 2372.4

G-Etronax EP 11 - Sheet

Used in various applications such as large rotating electrical machines and insulation cylinders in transformers.

EP 11 vs. EP 215 S

EP 11 and EP 215 S are near-identical materials on paper. As sheets, both are glass-fabric epoxy to the same standards (EP GC 308 / NEMA G-11), both are thermal class H with a temperature index of 180°C, and their electrical figures are the same. EP 11 has a slightly higher bending strength and impact strength. The real difference shows up in use. EP 215 S performs better under varying loads, with a long service life under the most demanding conditions, which is why it is preferred for rotary vanes and similar application areas.

Also available as G11 tubes.

altText

Downloads

Properties

Electrotechnical properties

Suitable for electrical insulation and other electrical applications.

Mechanical properties

Suitable for applications where the materials are exposed to mechanical impact.

Easy to machine

The easy-to-machine material makes for unlimited possibilities.

Chemical resistance

Withstands the effects from a wide range of chemicals which can damage many other materials.

Overview

Mechanical properties
Bending strength at RT ISO 178 ≥ 1,5 mm 450 MPa *1
Bending strength at a high temperature ISO 178 ≥ 1,5 mm 300 MPa *B
Modulus of elasticity ISO 178 ≥ 1,5 mm 22000 MPa *1
Compressive strength ISO 604 ≥ 5 mm 550 MPa *1
Izod impact strength, parallel with layers ISO 180/2A ≥ 5 mm 65 Kj/m2 *1
Shearing strength, parallel IEC 60893-2 ≥ 5 mm 55 MPa *1
Tensile strength ISO 527 ≥ 1,6 mm 320 MPa *1
Electrical properties
Electrical strength in oil at 90°C, perpendicular IEC 60243-1 3 mm 18 kV/mm *2
Electrical strength in oil at 90°C, parallel IEC 60243-1 ≥ 3 mm 70 kV/25mm *2
Permitivity 50 MHz IEC 62631-2-1 ≤ 3 mm 5 *3
Permitivity 1 MHz IEC 62631-2-1 ≤ 3 mm 5 *3
Dissipation factor 50 MHz IEC 62631-2-1 ≤ 3 mm 0.008 *3
Dissipation factor 1 MHz IEC 62631-2-1 ≤ 3 mm 0.01 *3
Insulation resistance after submersion in water IEC 62631-3-3 All 500000 MΩ *4
Comparative tracking index IEC 60112 ≥ 3 mm 200 CTI *1
Physical and thermal properties
Temperature index 20,000 h (T.I.) IEC 60216 ≥ 3 mm 180 °C *
Fire class IEC 60695-11-10 *
Density ISO 1183-A All 1.85 g/cm³ *
Water absorption ISO 62-1 50x50x3 mm 15 mg *
Smoke emission & toxicity EN 45545-2; R22, R23 & R24 *
Oxygen Index (OI) EN ISO 4589-2 %
Smoke density (Ds max.) EN ISO 5659-2 *
Smoke density (Ds max.) EN ISO 5659-2 *
Toxicity (CITNLP) NF X 70-100-1/-2 *
Toxicity (CITG, 8 min) EN 17084 *

Conditioning

1 24h/23°C/50%RH
2 24h/23°C/50%RH + 1h/ in oil at 90°C
3 96h/105°C + 1h/23°C/20%RH
4 24h/50°C/<20% RH + 24h in water at 23°C

Notes

B 1h/150°C / measured at 150°C

The above values are average values resulting from extensive tests in our laboratories. ELEKTRO-ISOLA A/S disclaims any and all liability for the performance of our materials in applications outside our control. Elektro-Isola A/S reserves the right to modify the above data without notice or further information. Furthermore, we refer to our general disclaimer.

* Note that color and surface are indicative. As this is a technical product, colour and expression may vary according to dimensions, batches and machining. If you want further information or have special decorative needs, please feel free to contact us.