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PVC
Conduit Pipes
Electrical
Characteristics |
| 1. | Electrical Strength C1-12.1.1 of IS: 9537 (Part-1) -1980 |
The sample shall with stand an A.C. voltage of 2000 volts having a frequency of 50 Hz for a period of 15 minutes after conditioning in a water Bath at 27 ± 5 Deg C for a period of 24 Hours without break down. |
| 2. | Insulation Resistance C1-12.1.2 of IS: 9537 (Part-I) 1980 |
The sample shall with stand a D.C. Voltage of 500 Volts in water bath kept At a temp. of 60 ± 2 Deg C for a period of 2 hours minimum insulation resistance shall be 100 M ohm. |
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Mechanical
Characteristics |
| 1. | Impact Test CI-9.4 of IS: 9537 (Part-1) 1980 |
The samples shall not show any sign of cracks visible to the naked eye on impact. |
| 2. | Compression
Test CI-9.3 of IS: 9537 (Part-1) 1980 |
The sample shall be tested at a
temp. of 27 ± 2 Dec C for at least 10 hours. On Load:- The
difference between the initial diameter of flattened pipe shall not
exceed 25% of out side diameter measured before compression. The difference between the initial diameter and the diameter of the flattened sample measured one minute after removal of compression force shall not Exceed 10% of the outside diameter measured before the test. |
| 3. | Resistance to Burning CI-11 of IS: 9537 (Part-1) 1980 |
If the sample burns, it shall do so slowly and the flame shall not spread appreciably any flame shall die out in less than 30 seconds after removal of the burner. |
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Kalinga
brand rigid PVC Conduit Pipe conforming to IS : 9537 PART-III 1983 |
| Type | Medium | Heavy | ||||||||||
| Nominal Size | 20 | 25 | 32 | 40 | 50 | 20 | 25 | 32 | 40 | 50 | ||
| Outside Diameter | 20 | 25 | 32 | 40 | 50 | 20 | 25 | 32 | 40 | 50 | ||
| Tolerance on Outside Diameter | -0.3 | -0.4 | -0.4 | -0.4 | -0.5 | -0.3 | -0.4 | -0.4 | -0.4 | -0.5 | ||
| Inside Diameter (Min.) | 16.9 | 21.4 | 27.8 | 35.4 | 44.3 | 15.8 | 20.6 | 26.6 | 34.4 | 43.2 | ||
| Wall Thickness | ||||||||||||
| (i) Maximum | 1.55 | 1.80 | 2.10 | 2.30 | 2.85 | 2.10 | 2.20 | 2.70 | 2.80 | 3.40 | ||
| (ii) Minimum | 1.40 | 1.60 | 1.90 | 2.10 | 2.60 | 1.95 | 2.00 | 2.50 | 2.60 | 3.15 | ||
| (iii) Average | 1.475 | 1.70 | 2.00 | 2.20 | 2.725 | 2.025 | 2.10 | 2.60 | 2.70 | 3.275 | ||
| (iv) P.Difference | .24 | .270 | 0.30 | 0.32 | 0.37 | 0.30 | 0.310 | 0.36 | 0.39 | 0.43 | ||
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