ASTM D2303 PDF

DC voltage levels in parallel to AC voltage in the ASTM inclined plane tracking and Index Terms — DC Inclined plane test, tracking and erosion, ASTM D ASTM D Standard Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials. The use of polymers covered cables for medium voltage electricity distribution grids is an attractive option in Brazil thanks to their low cost and simplic.

Author: Shalmaran Nebei
Country: Swaziland
Language: English (Spanish)
Genre: Spiritual
Published (Last): 9 June 2018
Pages: 49
PDF File Size: 11.46 Mb
ePub File Size: 19.62 Mb
ISBN: 623-1-39877-118-7
Downloads: 86245
Price: Free* [*Free Regsitration Required]
Uploader: Fenridal

To arrange tracking tests, request a quote online now or call For erosion studies, only tests as a function of time at f2303 voltage are useful. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D Standard Free Download – China KEPIN Instruments

Subscribe to our YouTube Channel. Historical Version s – view previous versions of standard. Charles, MO,http: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This is the most harsh of the most common track resistance tests.

This method evaluates surface tracking and erosion through the material. This method recognizes the importance of such variability and suggests the use of special test solutions to meet specific service needs.

  DILES QUE NO ME MATEN DE JUAN RULFO PDF

Approximately x mm and minimum of 1.

ASTM D – Inclined-Plane Tracking and Erosion Tester | Lectromec

The preferred test specimens are mm 4 inches diameter disks with a minimum thickness of 2. For example, an ionic contaminant containing, in addition, a carbonaceous component asstm as sugar is substituted to cause tracking on very resistant materials like polymethylmethacrylate. Dust—and—Fog Tracking and Erosion Resistance of Electrical Insulating Materials This test method evaluates the tracking resistance of a material in a continually wet and dusty environment.

All test specimens should be free of surface imperfections such as scratches and bubbles. Such contamination is considered representative of some severe industrial environments.

Specific precautionary statements are given in Section 8. Link to Active This link will always route to the current Active version of the standard.

Emails are serviced by Constant Contact. The effects are similar to those that may occur in service under the influence of dirt combined with moisture condensed from the atmosphere. In this case, the time-to-track technique is used, since time is required to decompose the contaminant solution and build up conducting x2303 on the sample surface.

ASTM D2303 Standard Free Download – China KEPIN Instruments

By submitting this form, you are consenting to receive marketing emails from: A minimum of 5 specimens are recommended. The condition of the surface of the material will greatly effect the results.

  CRYPTO PERIODISMO PDF

Flat surface approximately 2 by 5 inches 50mm by mm and of a thickness rigid enough to wstm itself without flexing or bending. At least 5 specimens per material per thickness to be tested must be provided; the preferred number is 7 specimens. The use of this method for measuring erosion is consequently important. Watch our video about Inclined Plane Testing.

ASTM D2303 – Inclined-Plane Tracking and Erosion Tester

A minimum of 5 specimens per material per thickness must be tested, however, that number is only sufficient if the number of drops falls exactly in line with expectations. Use caution when making either direct or comparative service behavior inferences derived from the results of tracking tests.

You can unsubscribe anytime. One test means up to 5 tests on a single material; the five tests can be conducted on different individual test specimens or on a single test specimen if the separation between the test locations is sufficient to avoid damage of one test to the surface of another test location. The surface to be tested must be specified. Charles, MO Email Us. The preferred test specimen s: The recommended minimum number of samples is 20 samples; the preferred number of samples for each material is