Introduction
The 6641 DMD mylar polyester film electrical insulation material is a three-layer composite material made of one layer of polyester film and two electrical polyester fibre nonwovens and glued by F class resin. With good mechanical property and electrical property, polyester non-woven fabric has good adsorption capacity and can absorb resin during impregnation.
Application
It is widely used in slot, phase and liner insulating of motors,Interlayer insulation in the transformer. It is also widely used in automatic coil inserting machine for wedge inserting.
Specification
Thickness : 0.13mm-0.50mm
Sheet: 1000*980mm
Coil: maximum width 1000mm
Strip: minimum width 5mm
Thermal class : F
Working temperature: 180 degree
Color: Blue
Normal Bond strength: no delamination
Bond strength at 180±2°C: No delamination, no blister, no adhesive flow
Properties | Unit | Parameter | ||||||||||
Insulation paper thickness | MM | 0.13 | 0.15 | 0.18 | 0.20 | 0.23 | 0.25 | 0.30 | 0.35 | 0.40 | 0.45 | 0.50 |
Thickness deviation | MM | ±0.02 | ±0.02 | ±0.02 | ±0.02 | ±0.02 | ±0.03 | ±0.03 | ±0.04 | ±0.04 | ±0.05 | ±0.05 |
Grammage and deviation | GSM | 130±13 | 152±15 | 187±19 | 205±21 | 240±24 | 275±27 | 322±32 | 375±38 | 466±47 | 536±54 | 606±61 |
Film thickness | MM | 0.036 | 0.050 | 0.075 | 0.075 | 0.100 | 0.125 | 0.150 | 0.188 | 0.250 | 0.300 | 0.350 |
Breakdown voltage | KV | ≥5 | ≥6 | ≥7 | ≥7 | ≥9 | ≥10 | ≥12 | ≥15 | ≥18 | ≥20 | ≥22 |
Tensile strength (MD | N/CM | ≥60 | ≥90 | ≥110 | ≥120 | ≥140 | ≥170 | ≥200 | ≥270 | ≥340 | ≥360 | ≥390 |
Tensile strength (TD) | N/CM | ≥40 | ≥80 | ≥100 | ≥105 | ≥120 | ≥150 | ≥180 | ≥200 | ≥280 | ≥300 | ≥320 |
Package
Inner packaging: polyethylene film
Outer packaging: carton or woven bag
Storage conditions
Can be stored indefinitely under normal conditions (20°C, 50% r.h.)
Picture show
Information needed for insulation material inquiry
It will be better if customer could send us detailed drawing including below information.
1. Insulation material type: insulation paper, wedge, (including DMD,DM, polyester film, PMP,PET,Red Vulcanized Fiber)
2. Insulation material dimension: width, thickness, tolerance.
3. Insulation material thermal class: Class F, Class E, Class B, Class H
4. Insulation material applications
5. Required quantity: normally its weight
6. Other technical requirement.
