F GRADE FIBERGLASS SLEEVING
COATE WITH POLYURETHAND
F grade fiberglass sleeving coated with polyurethane is manufactured with non-alkali fiberglass braided sleeving and coated with polyurethane and then thermosetted to form F grade insulating sleeving. It possesses reliable heat resis-tance, good qualities of dielectric, fair goftness and elasticity, flame resistance.It can be used for wiring insulation and as mechanic protection for motors,electrical appliances, electrical instruments,wireless sets and domestic electrical appliances.
|
Nomlnal bore dia |
Toleronce |
Wall Thickness |
|
|
Minimum |
Maximum |
||
|
1;1.5 |
±0.15 |
0.20 |
0.75 |
|
2;2.5 |
±0.20 |
0.20 |
0.75 |
|
3 |
±0.25 |
0.20 |
0.75 |
|
3.5;4;5;6 |
±0.25 |
0.30 |
0.75 |
|
7;8 |
±0.50 |
0.40 |
0.90 |
|
9;10;12;14;16;18;20 |
±0.50 |
0.40 |
0.90 |
|
23;25;27 |
±0.50 |
0.40 |
1.00 |
Property Requirements
|
Propcety |
Pequirements |
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|
Resistance to soldering beat |
Pass,(only for sleeving having nominal bore dia,up to and including 5mm) |
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|
Bending after heating |
No craching or detachment of the coating shall be visible and the orlginal colour shall be clearly recognisable after 48±1hr,at 180±3℃. |
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|
Thermal endurance,Temperature index at 20000 hours |
155℃ |
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|
Breakdown Voltage,KV,min Straight mandrel with 25mm electrode |
Room temp. |
Rlevated temp. |
Damp heat |
|
Central value Lowest individual value |
4.0 2.5 |
1.6 1.0 |
1.2 0.8 |