NHN/NKN (Nomex paper/Polymide film/Nomex paper)is a Triple layer electrical insulation material of thermal class H 180℃, consisting of polymide film covered with Du Pont Nomex paper. The polymide film giving the product mechanical and dielectric features, while the Du Pont Nomex paper gives the thermal resistance.This NHN has excellent electrical.mechanical,and impregnating properties.
Combined flexible materials NHN main paramete:
No. | Properties | Unit |
| Requirements |
1 | Nominal thickness | mm | 0.15 | 0.20 | 0.25 | 0.3 | 0.33 |
2 | Thickness tolerance | mm | ±0.02 | ±0.03 | ±0.04 | ±0.05 |
2 | Weight and tolerance | g/m2 | 155±25 | 195±30 | 260±40 | 300±45 | 330±50 |
4 | Tensile strength | Lengthwise | Nomal | N/10mm | ≥120 | ≥160 | ≥200 | ≥250 | ≥270 |
After Bending | ≥70 | ≥90 | ≥150 | ≥170 | ≥180 |
Crosswise | Nomal | ≥80 | ≥100 | ≥120 | ≥150 | ≥170 |
After Bending | ≥50 | ≥80 | ≥100 | ≥110 | ≥130 |
5 | Elongation | Lengthwise | % | ≥10 |
Crosswise | ≥8 |
6 | Breakdown Voltage | Nomal | KV | ≥8 | ≥9 | ≥10 |
After Bending | ≥7 | ≥8 | ≥9 |
7 | Bonding strength at room temperature | — | — | No delamination |
Applications
Combined flexible materials NHN applications:
Composite insulation material NHN has good electrical and mechanical properties of dielectric, under high temperature and wet mechanical properties especially;Used for H level motors, electrical appliances slot insulation, turn insulation, liner and H level dry transformer insulation between the layer insulation, etc..
