小米 发表于 2012-9-14 13:47

DSH 253A Resistance to tracking


http://decisions.iecee.org/icons/ecblank.gif DSH 253A

Resistance to tracking
30.3
60335-1(ed.2)


Standard: IEC 335-1, Ed.2
Sub clause: 30.3
Sheet n. 253 A
Subject: Resistance to tracking
Key words:
- tracking
Decision 16 of 34th meeting/1997
Question:
What is the minimum potential below which a tracking path is not any more liable to
occur and therefore the test is not necessary ?
Decision:
Based on subclauses 2.9.4, note 1, and 8.1.4, no tracking test is needed for SELV
and PELV circuits.


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