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> Paper/Epoxy laminated tube ER-1110
Paper/Epoxy laminated tube ER-1110
Paper base laminated tube with excellent insulating prpperty of Epoxy
Application:Insulating cylinder of Transformer or Tap changer |
 |
Size
Bore tolerance
Outside diameter tolerance |
| Test items |
Unit |
Treatment |
ER-1110 |
| JIS (ANSI) |
- |
| Base material |
Paper |
| Resin |
Epoxy |
Electrical strength
(Vertical to layer 1 min. in oil) |
MV/m |
C-90/20/65 |
14 |
Breakdown voltage
(Dissipation factor 1 min. in oil) |
MV/m |
23～40 |
Electrical strength
(Parallel to layer 1min. in oil ) |
kV/15mm |
28 |
Breakdown voltage
(Parallel to layer 1min. in oil) |
40～55 |
| Insulation resistance |
MΩ |
5×105～5×106 |
| Dielectric constant(60Hz) |
- |
4.5～5.5 |
| Dissipation factor(60Hz) |
- |
0.005～0.015 |
Flexural strength
(Vertical to layer) |
MPa |
A |
118～176 |
Flexural modulus
(Vertical to layer) |
3,920～4,900 |
Compressive strength
(Parallel to layer) |
127～186 |
Compressive strength
(Vertical to layer) |
196～274 |
Tensile strength
(Parallel to layer) |
98～147 |
| Cleavage strength |
kN |
3.43～4.41 |
Appearnce
after 2hours heat treatment |
℃ |
120℃ OK |
| Water absorption |
% |
E-24/50+D-24/23 |
0.3～0.7 |
| Specific gravity |
- |
A |
1.2～1.35 |
*Test method : JIS K-6911
*Treatment condition
A=Accept state, C=Constant Temperature and humidity , D=Dipping in water E=Electric heating , O=Oil dipping
Starting from the left figures show Time(h)/Temeperature(℃)/Humidity(%)
※The above figures do not show guaranteed value but one of test results . |
