The kind of tubing produced with the process of thermal and vulcanization is the non-alkali fiberglass braided silicone rubber tubing.
This tubing possesses good qualities of dielectric high temperature resistance and cold resistance and can be use as wiring insulator for H grade electrical machinery, special bulbs, electrical rice cookers as well as other household appliance and their protection device.
Color
The standard color is White. ( But Red、Blue, and Black are available by special order. )
Type
Two types are classified according to the degrees of insulation withstand voltage.
SRG-1 ( 7Kv ) : For use high voltage circuits or H class general insulation.
SRG-1 ( 4Kv ) : For use low voltage circuits or H class general insulation.
Length
Total length 1000mm ±20mm. ( Continuous length may be negotiated )
Property Requirements
Property |
Requirements |
|
Bending after heating |
No cracking or detachment of coating shall be visible And the original color shall be clearly recognizable after 48hr ±1hr at 260℃ ±5℃ |
|
Bending at low temperature |
No cracking or detachment of coating shall be visible after 60min ±10min, at –70℃ ±5℃. |
|
Hydrolysis of coating |
No running of the coating, adherence between tubing and paper, between pieces of tubing nor any sign of discoloration of paper. |
|
Flame propagation |
In addition 60sec (max), the indicator flag on any one of three test specimens shall not be burned nor shall flaming or glowing particles or flaming drops ignite the cotton. Self-extinguish UL VW-1 test. |
|
Heat resistance Temperature at 200℃ |
Should be normal |
|
|
SRG-1 ( 7Kv ) |
SRG-1 (4Kv) |
Normal condition Min. Value |
7.0 Kv/Min |
4.0 Kv/Min |
Normal condition Avg. Value |
6.0 Kv/Min |
3.0 Kv/Min |
UL File No. : E221462 |
Measurement Standards
Inside Diameter (mm) |
Wall thickness (mm) |
||
Normal |
Tolerance |
Min. |
Max. |
1.0 – 1.5 |
+ 0.20 , - 0.10 |
0.40 |
0.60 |
2.0 – 3.0 |
+ 0.20 , - 0.10 |
0.40 |
0.65 |
3.5 – 5.0 |
+ 0.25 , - 0.10 |
0.45 |
0.70 |
6.0 – 8.0 |
+ 0.25 , - 0.10 |
0.45 |
0.80 |
9.0 – 10.0 |
+ 0.30 , - 0.10 |
0.50 |
1.00 |