B1 Phenolic Paper Electrical Grade
B1 is a Phenolic Paper and was originally produced to meet the requirements of MOD. B1 has got excellent electrical strength both in air and immersed in oil and good mechanical properties, low water absorption and high Insulation resistance.
Availibility:
| Typical Size (mm) |
1220 x 1220 |
| Thickness (mm) |
0.8 through to 75 |
Specifications:
| Specification |
BSEN60893-3-4-PFCP206 (Which supersedes BS2572 P3) |
Technical Specification:
| Property |
Unit |
Result |
| General Properties |
| Density |
g/cm3 |
1.37 |
| Water Absorption |
- |
55mg |
| Electrical Properties |
| IR (24hrs Water Immersed) |
GΩ |
24 |
| Electric Strength (Flat Rapid) |
MV/m |
18 |
| Electric Strength (Flat Step by Step) |
MV/m |
13 |
| Breakdown Voltage (Edge Step by Step) |
kV |
70 |
| Relative Permittivity @ 1MHz |
- |
5 |
| Dissipation Factor @ 1MHz |
- |
0.035 |
| Tracking Index |
V |
110 |
| Mechanical Properties |
| Flexural Strength |
MPa |
155 |
| Tensile Strength |
MPa |
100 |
| Impact (Notched CHARPY) |
kJ/m2 |
3.5 |
| Thermal Properties |
| Thermal Rating Continuous |
ºC |
105 |
| Thermal Rating Intermittent |
ºC |
120 |
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