DSH 513 Overload protection of transformers and associated circuits
http://decisions.iecee.org/icons/ecblank.gif DSH 513
Overload protection of transformers and associated circuits
17
60335-1(ed.3)
Question:
1) In case of transformer mounted on an appliance, shall the short-circuit on the secondary
winding always be carried out, if the transformer is not in compliance with specific standard
(e.g. IEC 60742)?
2) If on the secondary winding a protection device like a fuse-link is connected, is it correct
to introduce the short-circuit after the protection device?
Rationale:
See question.
Decision:
1) No, the notes 1 and 2 of clause 17 have to be considered.
2) Yes, if between the winding and the protection device there is no possibility of a shortcircuit
to occur.
页:
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