F-Class DMD for layer, phase and liner insulation in dry-type transformers, motors, and other electrical equipment. F-Class DMD for layer, phase and liner insulation in dry-type transformers, motors, and other electrical equipment.
F-Class DMD is a three-layer flexible laminate consisting of polyester non-woven fabric, polyester film and polyester non-woven fabric, bonded together with an adhesive system.
It is commonly supplied in Class B or Class F insulation grades for layer, phase, and liner insulation in dry-type transformers, motors, and other electrical equipment.
| No. | Parameter | Unit | Specification | |||||
| 1 | Nominal thickness | mm | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | |
| 2 | Tensile strength | Before bending MD | N/10 mm | ≥80 | ≥130 | ≥190 | 240 | 280 |
| Before bending CD | N/10 mm | ≥80 | ≥110 | ≥170 | 200 | 250 | ||
| 3 | Elongation | Before bending MD | % | ≥15 | ≥5 | |||
| Before bending CD | % | ≥20 | ≥5 | |||||
| 4 | Breakdown voltage | Before bending | KV | ≥6 | ≥8 | ≥10 | ≥14 | ≥16 |
| 5 | Temperature | ℃ | ≥155 | |||||
| Nominal thickness: 0.15 mm, 0.18 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.35 mm, 0.38 mm Nominal width: 1000 mm | ||||||||
Specification Confirmation：The values shown above represent common market options. Final dimensions, thermal class, performance requirements and inspection documents are confirmed before order.
