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Visual Test:
Taking all products to process with the visual test, Shape of product shall be uniform and smooth. Shed shall be consisting of large shed and small shed. About defect of the shed and housing which include the dro edgum, the impurity, the convex, the rod defect and the end fitting, all shall be comply with the standard. The end fittings shall be compression connector and the tin coating shall be uniform, no sharp edges, no pin hole. All test point comply with the standard, the product is qualified.
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Dimension Test:
Random Select our 3 samples, number as 1~3. (The dimensions refer to product drawing)
|
Sample No. |
Total Height
(mm) |
Creepage
Distance
(mm) |
Flashover
Distance
(mm) |
Distance of Mounting Hole (Up/Down) |
|
1 |
771.0 |
2540 |
660 |
φ127.2 |
|
2 |
770.9 |
2541 |
660 |
φ127.2 |
|
3 |
771.0 |
2541 |
660 |
φ127.4 |
|
Standard Value |
770±1.0 |
2530 |
≥660 |
φ127±0.5 |
Conclusion: Qualified
3. Galvanization Test:
Thickness of tin coating is tested by magnetometry. These three samples are qualified products in last test item.
|
Sample No. |
Min Value |
Average |
Total Average |
|
The Upper Fitting |
The Under Fitting |
The Upper Fitting |
The Under Fitting |
The Upper Fitting |
The Under Fitting |
|
1 |
100 |
137 |
132 |
130 |
|
2 |
101 |
135 |
|
3 |
102 |
135 |
|
Standard Value |
≥75 |
≥86 |
≥86 |
|
|
|
|
|
|
|
|
Conclusion: Qualified.
-
Lighting Impulse Withstand Test:
This sample is qualified product in last test item.
|
Sample No. |
Impulse Time |
Voltage (kV) |
Result |
|
1 |
Positive:15 Times |
353 |
No Flashover |
|
Negative:15 Time |
355 |
No Flashover |
|
Standard Value |
15 |
340 |
No Flashover |
Conclusion: Qualified.
-
1 Min Wet Withstand
This sample is qualified product in last test item.
|
Sample No. |
Voltage(kV) |
Withstand Time(S) |
Result |
|
1 |
144 |
60 |
No Flashover |
|
Standard Value |
140 |
60 |
No Flashover |
Conclusion: Qualified.
-
Specified Mech. Tensile Load
These three samples are qualified products in the front of test item.
|
Sample No. |
Mech. Load (kN) |
Result |
|
1. |
122.0 |
No Damage |
|
2. |
121.7 |
No Damage |
|
3. |
124.1 |
No Damage |
|
Standard Value |
≥120 |
No Damage |
Conclusion: Qualified.
-
Specified Mech. Load
These three samples are qualified products in the front of test item.
|
Sample No. |
Tensile Load(kN) |
Result |
|
1 |
16 |
No Damage |
|
2 |
16 |
No Damage |
|
3 |
16 |
No Damage |
|
Standard Value |
≥16 |
No Damage |
Conclusion: Qualified.
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