Inclined plane test

The inclined plane test is not recommended for fabrics with high flame resistance, and the vertical strip test is preferred (B.S.2963, 1958). The test specimen should be 6 ft long and 1-5 in wide. This is hung vertically by means of a clip from a rectangular frame which is 6 ft 6 in. high and... 

The method adopted was firstly to insist on testing and evaluation procedures that really represented working conditions. A number of possible competitive materials which initially had shown much promise were proved to have fatal weaknesses once realistic tests, such as the incline-plane test for ITV, were available. It is only when the full combination of hostile conditions is available - high voltage, pollution, moisture - that a real assessment of performance can be made. A number of other materials will perform well if one or other of these conditions is absent. The second vital requirement was to publicize throughout the electrical supply industry... 

EN ISO 12957-1 2005. Geosynthetics — Determination of friction characteristics — Part 1 Direct shear test EN ISO 12957-2 2005. Geosynthetics — Determination of friction characteristics — Part 2 Inclined plane test. 

ISO 12957-2 Geosynthetics — Determination of friction characteristics — Part 2 Inclined plane test... 

Figure 7.22 Inclined plane test according to ISO 12957-2. Courtesy IRSTEA.

ISO 12957-2 2005 Geosynthetics — Determination of Friction Characteristics — Part 2 Inclined Plane Test. 

The inclined-plane test, ASTM 2303, is most suitable for evaluation of track resistance. Many CTI values have been published by UL (36). The voltage ranges used in tests, 150-600 V for the CTI and 1.5-6 kV for the inclined plane test, have no relationship to operating voltages. The test voltages provide only a comparison and a means for rating. 

Table 7. Tracking Resistance of Polymers Inclined Plane Test ASTM D 2303...

The inclined-plane test, ASTM D 2303, is used for materials with good resistance to wet tracking. A contaminant solution flows slowly between two... 

The inclined-plane test uses test parameters controlled to produce constant and uniform scintillation. Tracking and erosion are accelerated as compared to the short, widely spaced periods during which scintillation occurs in actual service. 

It is worth mentioning, however, that even in the case of optimum filler content the possibflity of tracking still exists. For the ATH/PDMS system studies performed by Kumagai and Yoshimura, applying an inclined plane test revealed that tracking is also possible at high temperatures (>1600 C) [68, 69]. The mechcuiism is different since the cunounts of carbon formed on the surface cffe limited rmd require the participation of gas byproducts. However, a degradation of the material performcmce is observed [69]. 

L.H. Meyer, S.H. Jayaram, E.A. Cherney, Thermal conductivity of filled silicone rubber and its relationship to erosion resistance in the inclined plane test, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 11, Issue 4, p. 620-630, Aug. 2004. 

---