NEN - NPR 10068-3-1
Climatic and mechanical tests of electrical equipment - Part 3.1: Background information of cold and dry heat tests
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 March 1979 |
| Status: | inactive |
| ICS Code (Environmental testing): | 19.040 |
scope:
Gives background information for Test A: Cold, of Publication 68-2-1 and Test B: Dry heat, of Publication 68-2-2. The clause dealing with test chambers includes reference to detailed appendices regarding the effects of size of chamber on surface temperature of a specimen when no forced air circulation is used; the effect of airflow on chamber conditions and on surface temperatures of test specimens; the effect of wire termination dimensions and material on surface temperature of a component; the measurements of temperature; air velocity and emissivity coefficient. The supplement gives additional information concerning the exceptional cases where temperature stability is not achieved during the test.
Document History
NPR 10068-3-1
March 1, 1979
Climatic and mechanical tests of electrical equipment - Part 3.1: Background information of cold and dry heat tests
Gives background information for Test A: Cold, of Publication 68-2-1 and Test B: Dry heat, of Publication 68-2-2. The clause dealing with test chambers includes reference to detailed appendices...