NEN-EN 50353
Insulating oil - Determination of fibre contamination by the counting method using a microscope
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 October 2001 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Insulating gases): | 29.040.20 |
scope:
Specifies two methods for determining the fibre contamination of mineral insulating oil used in electrotechnical equipment, based on filtering a sample of oil and examining and counting the number of fibres on the surface of the filter using an optical microscope. Fibres down to 1000 µm in length can be sized and counted by these methods. The methods are applicable both to unused oils and to oils in service.
Document History
NEN-EN 50353
October 1, 2001
Insulating oil - Determination of fibre contamination by the counting method using a microscope
Specifies two methods for determining the fibre contamination of mineral insulating oil used in electrotechnical equipment, based on filtering a sample of oil and examining and counting the number of...
April 1, 2000
Insulating oil - Determination of fibre contamination by the counting method using a microscope
Specifies two methods for determining the fibre contamination of mineral insulating oil used in electrotechnical equipment, based on filtering a sample of oil and examining and counting the number of...