|
|
| 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 scheme. |
| The standard color is white. But red, yellow, green, blue, and black are available by special order. |
| Type. |
| Two types are classified according to the degrees of insulation withstand voltage. |
| SRG-1: For use high voltage circuits. | |
|
FSG-2: 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” & CSA “HFS” test. |
|
Thermal endurance, Temperature at 20000 hours. |
200 ℃. |
|
Heat resistance |
Should be normal |
|
Breakdown voltage kv /min Straight mandrel with 50mmelectrode |
HST-1 |
|
Normal condition Min. Value
Normal condition Min. Value |
7.0 kv / min
8.0 kv / min |
CSA file no. : LR77878 | |
|
|
|
Measurement Standards |
|
Inside Diameter ( mm ) |
Wall thickness ( mm ) |
|
Nominal |
Tolerance |
Minimum |
Maximum |
|
1.0 , 1.5 |
+ 0.20 , - 0.10 |
0.40 |
0.60 |
|
2.0 , 2.5 , 3.0 |
+ 0.20 , - 0.10 |
0.40 |
0.65 |
|
3.5, 4.0 , 4.5 , 5.0 , |
+ 0.25 , - 0.10 |
0.45 |
0.70 |
|
6.0 , 7.0 , 8.0 |
+ 0.25 , - 0.10 |
0.45 |
0.80 |
|
9.0 , 10.0 |
+ 0.30 , - 0.10 |
0.50 |
1.00 | |
|
|
