Etronit I - Sheets
Components
Paper - Phenolic
Color:
Dark brown
Serial No.
010
Version no.:
V1.0-17/06/15
IEC/EN 60893-3-1:
PF CP 202
DIN 7735:
Hp 2061.5
NEMA LI 1:
XX

Mechanical properties   Test method Thickness Value Unit  
Flexural strength at RT ISO 178 ≥1,6 mm 150 MPa *1
Flexural strength at elevated temp. ISO 178 ≥1,6 mm - MPa -
Modulus of elasticity ISO 178 ≥1,6 mm 8000 MPa *1
Compressive strength ISO 604 ≥5,0 mm 300 MPa *1
Izod impact strength, parallel ISO 180/2A ≥5,0 mm 3.5 KJ/m2 *1
Shearing strength, parallel IEC 60893-2 ≥5,0 mm 35.0 MPa *1
Tensile strength   ISO 527 ≥1,6 mm 110 MPa *1
Electrical properties   Test method Thickness Value Unit  
Electric strength in oil at 90°C IEC 60243-1 3,0 mm 13.3 kV/mm *2
Electric strength in oil at 90°C IEC 60243-1 ≥3,0 mm 60 kV/25mm *2
Permittivity 50 Hz   IEC 60250 ≥1,6 mm 5.0   *3
Permittivity 1 MHz   IEC 60250 ≥1,6 mm -   -
Dissipation factor 50 Hz   IEC 60250 ≥1,6 mm 0.030   *3
Dissipation factor 1 MHz   IEC 60250 ≥1,6 mm -   -
Insulation resistance after immersion in water   IEC 60167 All 100 *4
Comparative tracking index   IEC 60112 ≥3,0 mm 100 CTI *1
Physical and thermal properties   Test method Thickness Value Unit  
Thermal endurance index 20.000 h (T.I.)   IEC 60216 ≥3,0 mm 120 °C -
Flammability   IEC 60695-11-10 ≥5,0 mm -   -
Density   ISO 1183-A All 1.35 g/cm3 *1
Water absorption   ISO 62-1 50x50x3 mm 120 mg *4
Characteristics and applications
High-voltage insulation material at mains frequency. High breakdown voltage in oil and reasonable breakdown voltage in air at normal air humidity. Insulation material in high-voltage tranformers and tap changers.
Notes:
A) Thickness > 8mm.
B) Thickness  ≥ 4,0mm 
C) 1 h/130°C / measured at 130°C
D) 1 h/150°C / measured at 150°C
E)  1 h/180°C / measured at 180°C
F)  1 h/200°C / measured at 200°C
* Conditioning:
1: 24h/23°C/50%RH
2: 24h/23°C/50%RH + 1h/Oil 90°C
3: 96h/105°C + 1h/23°C/20%RH
4: 24h/50°C + 24h/water 23°C
5: 96h/105°C + 1h/Oil 90°
The above values are average values based on the results of extensive testing in our laboratories. ELEKTRO-ISOLA A/S cannot accept responsibility for the performance of our products in applications over which we have no control. Elektro-Isola A/S reserves the right to amend the above data without notice and without providing further information. Moreover, we refer to our general disclaimer.