Plain Weave Fibreglass Insulation Tape , E Glass Fiberglass Fabric Tape
0.3mm Thickness Insulation Binding Tape Polyester Resin Impregnated Fiberglass Web Banding Tape
1. Introduction:
Polyglass banding tapes consist of parallel, non-woven, twisted and high tensile strength glass yarns that are pre-impregnated with a special thermosetting resin; the resin employed permits long self life in the semi cured tapes. The tape has replaced steel rope in large DC rotor, commutator banding and transformer leg locking to minimize eddy current, over-heating and flashover etc. The thermosetting resin has an important role in the performance of polyglass banding tapes. A new polyglass banding tape was developed with a very special thermosetting polyester resin modified with organic silicone compound. The mechanical and electrical properties of the cured banding tape were thoroughly evaluated.
2. Specification
Type |
(mm) Thickness |
(mm) Tolerance |
(mm) Width |
(mm) Tolerance |
Put up |
|
H200
|
0.20 | ±0.03 | 10 | ±1 | pancake or spool |
| 15 | ±1.5 | ||||
| 0.30 | ±0.03 | ||||
| 20.25.30.50.60 | ±2 |
3. Curing condition(Time to bring the piece to temperature is not considered)
Temperature |
℃ | 160 | 150 | 135 | 120 | 115 |
Time |
Hours |
2.5 | 3 | 5 | 14 | 20 |
4. Storage stability
| Temperature | oC | 10 | 15 | 20 | 30 |
| Time | Months | 20 | 15 | 10 | 6 |
5. Properties
Item |
Unit |
Figure |
||
Type |
— | H200 | F150- | |
Thermal class |
— | H(200℃) | F(155℃) | |
Volatile content |
% | ≤2 | ||
Loss of weight at calcination |
% | 26±2 | ||
Soluble resin content |
% | ≥90 | ||
Tensile strength before curing |
N/cm | 0.20mm | ≥1200 | ≥1000 |
| 0.30mm | ≥2000 | ≥1500 | ||
Maximum pull while banding |
N/cm | 0.20mm | ≥600 | ≥500 |
| 0.30mm | ≥1000 | ≥800 | ||
Tensile strength of ringlike sample at room temperature after curing |
Mpa | 20℃ | ||
| ≥1000 | ≥900 | |||
Tensile strength of ringlike sample at working temperature after curing |
Mpa | 200℃ | 155℃ | |
| ≥700 | ≥560 | |||
Proof tracking index |
V | ≥500 | ||
Arc resistance |
S | ≥160 | ||
Dielectric strength |
KV/mm | ≥12 | ||
Thermosetting |
— | OK | ||
Loss of tensile strength after soaked in oil |
% | ≤10 | ||
6. Features:
Thermal class F and thermal class H banding tape
Banding tape is available in thermal class F (155°C) and thermal class H (200ºC).
- High thermal resistance of up to 200ºC; short period of heating up to 260ºC may be tolerated, whereas solder may melt on steel wires
- Very high arc resistance, thereby minimizing the possibility of 'flash over' which has often been a problem with steel bands
- Resistant to humidity and corrosion
- Smooth cured surface on application of banding tape reduces dirt adhesion, which might otherwise lead to tracking failure
- Non-conducting material, hence eliminates insulation as required under steel banding
- Prevents lashing banding tape bands, eliminating the extreme damage caused by lashing wires and lifting armature coils experienced when steel bands break
7. Application fields:
As a winding restraint on traction armatures, generators, other rotating machines and transformer cores
Applications where high tensile strength and insulating properties of the product can be made use of
Rotor banding Large-transformer banding Transformer banding
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