Cover DIN EN 60519-21 VDE 0721-21:2009-09
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DIN EN 60519-21 VDE 0721-21:2009-09

Safety in electroheat installations

Part 21: Particular requirements for resistance heating equipment – Heating and melting glass equipment

(IEC 60519-21:2008); German version EN 60519-21:2009
Class/Status: Standard, withdrawn
Released: 2009-09
VDE Art. No.: 0721035

This part of IEC 60519 is applicable to indirect resistance heating equipment for the heating and melting of glass, operating in voltage bands 1 and 2. These particular requirements also apply to equipment for direct resistance heating and melting of glass by means of current introduced by electrodes passing through the charged to be heated.