1.made of high tensile strength E-fiberglass yarns 2.impregnated with a thermosetting resin system 3.for high volatge banding
Polyglass banding tapes are made of high tensile strength E-fiberglass yarns, impregnated with a thermosetting resin system.
During the manufacture, the yarns are laid parallel to form a thin flat ribbon with exceptional strength. And during curing the resin fills voids and air spaces to form a homogenous laminate. After curing, the band is rigid with a hard smooth resin rich surface with the resistance of dirt adhesion. Furthermore the tape composed entirely of non-conducting materials is far better than the traditional steel bands.
Polyglass banding tapes, which are soft and a little bit sticky, are easy to use and they are widely used in manufacturing heavy duty AC/DC motors, traction motors, generators and transformers.
Table I
Specification | ||||
Type | Thickness | Width | Put up | |
H200 F150 | 0.30 ±0.03mm | 8.10.15.20.25.30.50.60(mm) ±10% | Roll/spool | |
Standard length | All widths |
| 100-200m/roll | |
Width | 8mm | 900m/spool | ||
Width | 10mm | 750m/spool | ||
Width | 20mm | 1800m/spool | ||
Width | 25mm | 1500m/spool | ||
Table II
Property Requirements | ||
Thermal class | H | F |
Maximum working temperature withstand | 180 °C | 155 °C |
Identification of resin | Polyester | |
Resin content | (27 ±2)% | |
Soluble resin content | Above 90% | |
Volatile content | Less than 2% | |
Yarn no./cm width | 30 ±1 | |
Tensile strength before curing | above 1800N/cm | above 1800N/cm |
Maximum pull during banding | Above 800N/cm | Above 800N/cm |
Tensile strength of a ring-like cured sample (at room temperature) | Above 900Mpa | Above 900Mpa |
Tensile strength of a ring-like cured sample (at working temperature) | Above 700Mpa | Above 600Mpa |
Arc resistance | Above 160 seconds | |
Proof tracking index | Above 500V | |
Breakdown voltage parallel to layers | Above 25KV (at normal condition) Above 10KV (after being soaked in water for 24 hours) | |
Thermosetting | OK | |
Loss of tensile strength (soaked in oil) | Below 10% | |
Table III
Recommended curing circle (hours) | 160°C | 150°C | 135°C | 120°C | 115°C |
2.5 | 3 | 5 | 14 | 20 | |
The above recommended curing circle do not include the time to bring the work piece to the curing temperature. | |||||
Table IV
Shelf life (kept in original packets) | °C | 10°C | 15°C | 20°C | 30°C | |
month | H | 18 | 12 | 9 | 6 | |
F | 9 | 7 | 5 | 3 | ||
Special specifications are also available upon requests.
Glass insulation banding tape
