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Ginde Plastic Pipe Industry
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 Click to enlarge image
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Specifications of PVC-U Insulating Conduit Pipe
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Nominal
Size
(mm) |
Outside
Diameter
(mm) |
Tolerance
(mm) |
Min of
Inside Diameter
(mm) |
Min of
Wall Thickness
of Solid Conduit
(mm) |
Length of
Solid Conduit
L(m) |
|
Solid Conduit |
Solid Conduit |
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16 |
16 |
0
-0.3 |
12.2 |
1.0 |
4+0.005/0 Can
Confirm With the
Requirements of
Transportation
and Engineering. |
|
20 |
20 |
0
-0.3 |
15.8 |
1.1 |
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25 |
25 |
0
-0.4 |
20.6 |
1.3 |
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32 |
32 |
0
-0.4 |
26.6 |
1.5 |
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40 |
40 |
0
-0.4 |
34.4 |
1.9 |
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50 |
50 |
0
-0.5 |
43.2 |
2.2 |
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63 |
63 |
0
-0.6 |
57.0 |
2.7 |
Technical Requirements of PVC-U Electrical Insulation Conduit and Fittings
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No. |
Item |
Solid Conduit |
Fitting |
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1 |
Appearance |
-(0.1+0.1A)≤⊿A≤(0.1+0.1A) |
Smooth,No Crack |
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2 |
Max Diameter(outside) |
the Steel Ball can Go through the Pipe by Itself |
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3 |
Min Diameter(outside) |
the Steel Ball can Go through the Pipe by Itself |
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4 |
Min Diameter(inside) |
the Steel Ball can Go through the Pipe by Itself |
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5 |
Min Wall Thickness |
Not Less Than the Required Wall Thickness |
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6 |
Press Resistance
(changing rate of outside diameter-%) |
Load of 1 min≤25 Unload of 1 min≤10 |
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7 |
Impact Property |
10 of 12 Testing Pieces Shouldn't Damage at Least |
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8 |
Flattening Property |
Invisible Crack |
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9 |
Flexural Property |
the Steel Ball can Go through the Pipe by Itself |
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10 |
Heat Resistance |
No Crack and Breakage |
No Crack and Breakage |
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11 |
Drop Property |
Di≤2mm |
Di≤2mm |
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12 |
Flame
Resistance |
Self-extinguish Time |
te≤30s |
te≤30s |
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Oxygen Index |
OI≥32 |
OI≥32 |
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13 |
Electrical Property |
No Damage within 15min,R≥100MΩ |
No Damage Within 15min,
R≥100MΩ |
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